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产品型号REF2912AIDBZR的概述

芯片REF2912AIDBZR的概述 REF2912AIDBZR是一款由德州仪器(Texas Instruments)公司制造的高性能、低噪声、低漂移的线性稳压器。其设计旨在为各种电子设备提供稳定且精准的参考电压。此芯片的核心特点包括高速、低噪声输出能力,高共模抑制比(CMRR),以及优异的温度稳定性,因而在模拟电路、敏感的传感器设备及精准测量系统中具有广泛的应用潜力。 该芯片采用了高精度的薄膜技术,能够实现极低的电源噪声,以及在不同负载条件下表现出极佳的输出性能。此外,REF2912AIDBZR的额定输出电压为2.5V,且在输出电流高达100mA的情况下,能够保持优越的输出稳定性。因此,它适合广泛的应用领域,包括数据采集、精密仪器、电源管理等。 芯片REF2912AIDBZR的详细参数 REF2912AIDBZR的关键特征和性能参数如下: - 输出电压:2.5V - 最大输出电流:1...

产品型号REF2912AIDBZR的Datasheet PDF文件预览

REF2912  
REF2920  
REF2925  
REF2930  
REF2933  
REF2940  
SBVS033A – JUNE 2002 – REVISED MARCH 2003  
100ppm/°C, 50µA in SOT23-3  
CMOS VOLTAGE REFERENCE  
FEATURES  
DESCRIPTION  
The REF29xx is a precision, low-power, low-voltage dropout  
voltage reference family available in a tiny SOT23-3.  
MicroSIZE PACKAGE: SOT23-3  
LOW DROPOUT: 1mV  
The REF29xx’s small size and low power consumption  
(50µA max) make it ideal for portable and battery-powered  
applications. The REF29xx does not require a load capacitor,  
but is stable with any capacitive load.  
HIGH OUTPUT CURRENT: 25mA  
LOW TEMPERATURE DRIFT: 100ppm/°C max  
HIGH ACCURACY: 2%  
Unloaded, the REF29xx can be operated with supplies within  
1mV of output voltage. All models are specified for the wide  
temperature range, –40°C to +125°C.  
LOW IQ: 50µA max  
APPLICATIONS  
PORTABLE, BATTERY-POWERED EQUIPMENT  
DATA ACQUISITION SYSTEMS  
MEDICAL EQUIPMENT  
PRODUCT  
REF2912  
REF2920  
REF2925  
REF2930  
REF2933  
REF2940  
VOLTAGE (V)  
1.25  
2.048  
2.5  
3.0  
HAND-HELD TEST EQUIPMENT  
3.3  
4.096  
DROPOUT VOLTAGE vs LOAD CURRENT  
REF2912  
REF2920  
REF2925  
REF2930  
REF2933  
REF2940  
IN  
1
2
350  
300  
250  
200  
150  
100  
50  
3
GND  
OUT  
SOT23-3  
0
0
5
10  
15  
20  
25  
30  
Load Current (mA)  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2002-2003, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
www.ti.com  
ABSOLUTE MAXIMUM RATINGS(1)  
ELECTROSTATIC  
DISCHARGE SENSITIVITY  
This integrated circuit can be damaged by ESD. Texas Instru-  
ments recommends that all integrated circuits be handled with  
appropriate precautions. Failure to observe proper handling  
and installation procedures can cause damage.  
Supply Voltage, V+ to V................................................................... 7.0V  
Output Short-Circuit(2) .............................................................. Continuous  
Operating Temperature ..................................................40°C to +125°C  
Storage Temperature .....................................................65°C to +125°C  
Junction Temperature .................................................................... +150°C  
Lead Temperature (soldering, 10s)............................................... +300°C  
NOTES: (1) Stresses above these ratings may cause permanent damage.  
Exposure to absolute maximum conditions for extended periods may degrade  
device reliability. These are stress ratings only, and functional operation of the  
device at these, or any other conditions beyond those specified, is not implied.  
(2) Short-circuit to ground.  
ESD damage can range from subtle performance degrada-  
tion to complete device failure. Precision integrated circuits  
may be more susceptible to damage because very small  
parametric changes could cause the device not to meet its  
published specifications.  
PACKAGE/ORDERING INFORMATION  
SPECIFIED  
PACKAGE  
DESIGNATOR(1)  
TEMPERATURE  
RANGE  
PACKAGE  
MARKING  
ORDERING  
NUMBER  
TRANSPORT  
MEDIA, QUANTITY  
PRODUCT  
PACKAGE-LEAD  
REF2912  
SOT23-3  
DBZ  
"
40°C to +125°C  
R29A  
"
REF2912AIDBZT  
REF2912AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
"
"
REF2920  
SOT23-3  
DBZ  
40°C to +125°C  
R29B  
REF2920AIDBZT  
REF2920AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
"
"
"
"
R29C  
"
REF2925  
SOT23-3  
DBZ  
"
40°C to +125°C  
REF2925AIDBZT  
REF2925AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
"
"
REF2930  
SOT23-3  
DBZ  
40°C to +125°C  
R29D  
REF2930AIDBZT  
REF2930AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
REF2933  
"
"
"
"
"
SOT23-3  
DBZ  
"
40°C to +125°C  
R29E  
"
REF2933AIDBZT  
REF2933AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
"
REF2940  
SOT23-3  
DBZ  
"
40°C to +125°C  
R29F  
"
REF2940AIDBZT  
REF2940AIDBZR  
Tape and Reel, 250  
Tape and Reel, 3000  
"
"
"
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.  
ELECTRICAL CHARACTERISTICS  
Boldface limits apply over the specified temperature range, TA = 40°C to +125°C.  
At TA = +25°C, ILOAD = 0mA, VIN = 5V, unless otherwise noted.  
REF29xx  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
REF2912-1.25V  
OUTPUT VOLTAGE  
Initial Accuracy  
VOUT  
VOUT  
VOUT  
1.225  
1.25  
1.275  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
20  
42  
µVp-p  
µVrms  
LINE REGULATION  
1.8V VIN 5.5V  
60  
190  
µV/V  
REF2920  
OUTPUT VOLTAGE  
Initial Accuracy  
2.007  
2.048  
2.089  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
28  
65  
µVp-p  
µVrms  
LINE REGULATION  
V
REF + 50mV VIN 5.5V  
110  
290  
µV/V  
REF2925  
OUTPUT VOLTAGE  
Initial Accuracy  
2.450  
2.50  
2.550  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
35  
80  
µVp-p  
µVrms  
LINE REGULATION  
VREF + 50mV VIN 5.5V  
120  
325  
µV/V  
REF2912, 2920, 2925, 2930, 2933, 2940  
2
SBVS033A  
www.ti.com  
ELECTRICAL CHARACTERISTICS (Cont.)  
Boldface limits apply over the specified temperature range, TA = 40°C to +125°C.  
At TA = +25°C, ILOAD = 0mA, VIN = 5V, unless otherwise noted.  
REF29xx  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
REF2930  
OUTPUT VOLTAGE  
Initial Accuracy  
VOUT  
VOUT  
VOUT  
2.940  
3.0  
3.06  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
µVp-p  
µVrms  
LINE REGULATION  
VREF + 50mV VIN 5.5V  
120  
375  
µV/V  
REF2933  
OUTPUT VOLTAGE  
Initial Accuracy  
3.234  
3.30  
3.366  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
41  
105  
µVp-p  
µVrms  
LINE REGULATION  
VREF + 50mV VIN 5.5V  
130  
400  
µV/V  
REF2940  
OUTPUT VOLTAGE  
Initial Accuracy  
4.014  
4.096  
4.178  
2
V
%
NOISE  
Output Voltage Noise  
Voltage Noise  
f = 0.1Hz to 10Hz  
f = 10Hz to 10kHz  
45  
128  
µVp-p  
µVrms  
LINE REGULATION  
VREF + 50mV VIN 5.5V  
160  
410  
µV/V  
REF2912, REF2920, REF2925, REF2930, REF2933, REF2940  
OUTPUT VOLTAGE TEMP DRIFT(2)  
dVOUT/dT  
40°C TA +125°C  
35  
100  
ppm/°C  
OUTPUT CURRENT  
ILOAD  
25  
mA  
LONG-TERM STABILITY  
0-1000H  
1000-2000H  
24  
15  
ppm  
ppm  
LOAD REGULATION(3)  
dVOUT/dILOAD  
0mA < ILOAD < 25mA,  
VIN = VREF + 500mV(1)  
3
100  
µV/mA  
THERMAL HYSTERESIS(4)  
DROPOUT VOLTAGE  
dT  
VIN VOUT  
ISC  
25  
1
100  
50  
ppm  
mV  
mA  
µs  
SHORT-CIRCUIT CURRENT  
TURN-ON SETTLING TIME  
45  
120  
to 0.1% at VIN = 5V with CL = 0  
POWER SUPPLY  
Voltage  
Over Temperature  
Quiescent Current  
Over Temperature  
VS  
IQ  
IL = 0  
VREF + 0.001(5)  
VREF + 0.05  
5.5  
5.5  
50  
V
V
µA  
µA  
40°C TA +125°C  
42  
40°C TA +125°C  
59  
TEMPERATURE RANGE  
Specified Range  
Operating Range  
40  
40  
65  
+125  
+125  
+150  
°C  
°C  
°C  
Storage Range  
Thermal Resistance  
SOT23-3 Surface-Mount  
θJC  
θJA  
110  
336  
°C/W  
°C/W  
NOTES: (1) Minimum supply voltage for REF2912 is 1.8V. (2) Box Method used to determine over temperature drift. (3) Typical value of load regulation reflects  
measurements using a force and sense contacts, see text Load Regulation. (4) Thermal hysteresis procedure is explained in more detail in Applications Information  
section of data sheet. (5) For IL > 0, see Typical Characteristic curves.  
REF2912, 2920, 2925, 2930, 2933, 2940  
SBVS033A  
3
www.ti.com  
TYPICAL CHARACTERISTICS  
At TA = +25°C, VIN = +5V power supply, REF2925 is used for typical characteristics, unless otherwise noted.  
TEMPERATURE DRIFT (40°C to +125°C)  
TEMPERATURE DRIFT (0°C to +70°C)  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
0
5
10 15 20 25 30 35 40 45 50 55 60 65  
5
10 15 20 25 30 35 40 45 50 55 60 65  
Drift (ppm/°C)  
Drift (ppm/°C)  
MAXIMUM LOAD CURRENT vs TEMPERATURE  
OUTPUT VOLTAGE vs TEMPERATURE  
35  
30  
25  
20  
15  
10  
5
2.502  
2.500  
2.498  
2.496  
2.494  
2.492  
2.490  
40 20  
0
20  
40  
60  
80  
100 120 140  
40 20  
0
20  
40  
60  
80 100 120 140  
Temperature (°C)  
Temperature (°C)  
LOAD REGULATION vs TEMPERATURE  
QUIESCENT CURRENT vs TEMPERATURE  
6
5
4
3
2
1
0
60  
50  
40  
30  
20  
10  
0
40 20  
0
20  
40  
60  
80 100 120 140  
40 20  
0
20  
40  
60  
80 100 120 140  
Temperature (°C)  
Temperature (°C)  
REF2912, 2920, 2925, 2930, 2933, 2940  
4
SBVS033A  
www.ti.com  
TYPICAL CHARACTERISTICS (Cont.)  
At TA = +25°C, VIN = +5V power supply, REF2925 is used for typical characteristics, unless otherwise noted.  
LINE REGULATION vs TEMPERATURE  
OUTPUT IMPEDANCE vs FREQUENCY  
200  
150  
100  
50  
100  
10  
1
0.1  
0.01  
0
50  
40 20  
0
20  
40  
60  
80 100 120 140  
1
10  
100  
1k  
10k  
100k  
Temperature (°C)  
Frequency (Hz)  
POWER-SUPPLY REJECTION RATIO vs FREQUENCY  
OUTPUT VOLTAGE vs SUPPLY VOLTAGE (No Load)  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
2.50138  
2.50000  
2.49862  
2.49724  
2.49586  
2.49448  
2.49310  
2.49172  
2.49034  
2.48896  
1
10  
100  
1k  
10k  
100k  
2.5  
3
3.5  
4
4.5  
5
5.5  
6
Frequency (Hz)  
Supply (V)  
OUTPUT VOLTAGE  
vs SUPPLY VOLTAGE (ILOAD = 25mA)  
OUTPUT VOLTAGE vs LOAD CURRENT  
2.5008  
2.5000  
2.4992  
2.4984  
2.4976  
2.4968  
2.4967  
2.4952  
2.4944  
2.4936  
2.50152  
2.50000  
2.49848  
2.49696  
2.49544  
2.49392  
2.49824  
2.49088  
2.48936  
2.5  
3
3.5  
4
4.5  
5
5.5  
6
0
5
10  
15  
20  
25  
30  
Supply (V)  
Load Current (mA)  
REF2912, 2920, 2925, 2930, 2933, 2940  
SBVS033A  
5
www.ti.com  
TYPICAL CHARACTERISTICS (Cont.)  
At TA = +25°C, VIN = +5V power supply, REF2925 is used for typical characteristics, unless otherwise noted.  
STEP RESPONSE, CL = 0, 3V START-UP  
STEP RESPONSE, CL = 0, 5V START-UP  
VIN  
VIN  
VOUT  
VOUT  
40µs/div  
10µs/div  
0-1mA LOAD TRANSIENT (CL = 0)  
LINE TRANSIENT RESPONSE  
IL = 1mA  
VIN  
IL = 0mA  
VOUT  
VOUT  
10µs/div  
10µs/div  
0-5mA LOAD TRANSIENT (CL = 0)  
1-6mA LOAD TRANSIENT (CL = 1µF)  
IL = 5mA  
IL = 6mA  
IL = 0mA  
IL = 0mA  
VOUT  
VOUT  
10µs/div  
40µs/div  
REF2912, 2920, 2925, 2930, 2933, 2940  
6
SBVS033A  
www.ti.com  
TYPICAL CHARACTERISTICS (Cont.)  
At TA = +25°C, VIN = +5V power supply, REF2925 is used for typical characteristics, unless otherwise noted.  
1-25mA LOAD TRANSIENT (CL = 1µF)  
0.1Hz TO 10Hz NOISE  
IL = 25mA  
IL = 1mA  
VOUT  
1.0s/div  
100µs/div  
LONG-TERM STABILITY 1000 TO 2000 HOURS  
LONG-TERM STABILITY 0 TO 1000 HOURS  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
70  
60  
50  
40  
30  
20  
10  
0
1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000  
0
100 200 300 400 500 600 700 800 900 1000  
Time (hours)  
Time (hours)  
LONG-TERM STABILITY 0 TO 2000 HOURS  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
200 400 600 800 1000 1200 1400 1600 1800 2000  
Time (hours)  
REF2912, 2920, 2925, 2930, 2933, 2940  
SBVS033A  
7
www.ti.com  
The REF29xx features a low quiescent current, which is  
extremely stable over changes in both temperature and  
supply. The typical room temperature quiescent current is  
42µA, and the maximum quiescent current over temperature  
is just 59µA. Additionally, the quiescent current typically  
changes less than 2.5µA over the entire supply range, as  
shown in Figure 3.  
THEORY OF OPERATION  
The REF29xx is a series, CMOS, precision bandgap voltage  
reference. Its basic topology is shown in Figure 1. The  
transistors Q1, and Q2, are biased such that the current  
density of Q1 is greater than that of Q2. The difference of the  
two base-emiter voltages, Vbe1 Vbe2, has a positive  
temperature coefficient and is forced across resistor R1. This  
voltage is gained up and added to the base-emitter voltage  
of Q2, which has a negative coefficient. The resulting output  
voltage is virtually independent of temperature. The curvature  
of the bandgap voltage, as seen in the typical curve, Output  
Voltage vs Temperature, is due to the slightly nonlinear  
temperature coefficient of the base-emitter voltage of Q2.  
42.5  
42.0  
41.5  
41.0  
40.5  
40.0  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
6
V
IN (V)  
R1  
+
+
Vbe1 Vbe2  
FIGURE 3. Supply Current vs Supply Voltage.  
Q1  
Q2  
Supply voltages below the specified levels can cause the  
REF29xx to momentarily draw currents greater than the  
typical quiescent current. Using a power supply with a fast  
rising edge and low output impedance easily prevents this.  
FIGURE 1. Simplified Schematic of Bandgap Reference.  
THERMAL HYSTERESIS  
APPLICATION INFORMATION  
Thermal hysteresis for the REF29xx is defined as the change  
in output voltage after operating the device at 25°C, cycling  
the device through the specified temperature range, and  
returning to 25°C, and can be expressed as:  
The REF29xx does not require a load capacitor, and is stable  
with any capacitive load. Figure 2 shows typical connections  
required for operation of the REF29xx. A supply bypass  
capacitor of 0.47µF is recommended.  
absVPRE VPOST  
VHYST  
=
106 ppm  
(
)
VNOM  
Where: VHYST = Calculated hysteresis  
VIN  
1
VPRE = Output voltage measured at 25°C pre-  
temperature cycling  
0.47µF  
3
REF29xx  
V
POST = Output voltage measured when device has  
VOUT  
2
been operated at 25°C, cycled through specified  
range 40°C to +125°C and returned to operation at  
25°C  
FIGURE 2. Typical Connections for Operating REF29xx.  
TEMPERATURE DRIFT  
The REF30xx is designed to exhibit minimal drift error, defined  
as the change in output voltage over varying temperature.  
Using the boxmethod of drift measurement, the REF29xx  
features a typical drift coefficient of 20ppm from 0°C to 70°C—  
the primary temperature range of use for many applications.  
For industrial temperature ranges of 40°C to 125°C, the  
REF30xx family drift increases to a typical value of 50ppm.  
SUPPLY VOLTAGE  
The REF30xx family of references features an extremely low  
dropout voltage. With the exception of the REF2912, which  
has a minimum supply requirement of 1.8V, the REF29xx  
can be operated with a supply of only 1mV above the output  
voltage in an unloaded condition. For loaded conditions, a  
typical dropout voltage versus load is shown on the cover  
page.  
REF2912, 2920, 2925, 2930, 2933, 2940  
8
SBVS033A  
www.ti.com  
NOISE PERFORMANCE  
contact area of the output pin reduce the impact of contact  
and trace resistance, resulting in accurate measurement of  
the load regulation contributed solely by the REF29xx. For  
applications requiring improved load regulation, force and  
sense lines should be used.  
The REF29xx generates noise less than 50µVp-p between  
frequencies of 0.1Hz to 10Hz, and can be seen in the Typical  
Characteristic Curve 0.1 to 10Hz Voltage Noise. The noise  
voltage of the REF29xx increases with output voltage and  
operating temperature. Additional filtering may be used to  
improve output noise levels, although care should be taken  
to ensure the output impedance does not degrade AC  
performance.  
APPLICATION CIRCUITS  
Negative Reference Voltage  
For applications requiring a negative and positive reference  
voltage, the OPA703 and REF29xx can be used to provide  
a dual supply reference from a ±5V supply. Figure 5 shows  
the REF2925 used to provide a ±2.5V supply reference  
voltage. The low offset voltage and low drift of the OPA703  
complement the low drift performance of the REF29xx to  
provide an accurate solution for split-supply applications.  
LONG TERM STABILITY  
Long term stability refers to the change of the output voltage  
of a reference over a period of months or years. This effect  
lessens as time progresses as is apparent by the long term  
stability curves. The typical drift value for the REF29xx is  
24ppm from 0-1000 hours, and 15ppm from 1000-2000  
hours. This parameter is characterized by measuring 30  
units at regular intervals for a period of 2000 hours.  
+5V  
LOAD REGULATION  
+2.5V  
REF2925  
Load regulation is defined as the change in output voltage  
due to changes in load current. Load regulation for the  
REF29xx is measured using force and sense contacts as  
pictured in Figure 4. The force and sense lines tied to the  
10k  
10kΩ  
+5V  
2.5V  
OPA703  
Output Pin  
+
5V  
Contact and  
Trace Resistance  
VOUT  
FIGURE 5. REF2925 Combined with OPA703 to Create  
Positive and Negative Reference Voltages.  
IL  
Sense Line  
Force Line  
DATA ACQUISITION  
Load  
Meter  
Often data acquisition systems require stable voltage  
references to maintain necessary accuracy. The REF29xx  
family features stability and a wide range of voltages suitable  
for most micro-controllers and data converters. See Figure 6  
for a basic data acquisition system.  
FIGURE 4. Accurate Load Regulation of REF29xx.  
3.3V  
REF2933  
GND  
V+  
5  
+
1µF to  
10µF  
ADS7822  
VS  
VREF  
VCC  
+
1µF to 10µF  
0.1µF  
Microcontroller  
+In  
CS  
DOUT  
VIN  
In  
GND  
DCLOCK  
FIGURE 6. Basic Data Acquisition System 1.  
REF2912, 2920, 2925, 2930, 2933, 2940  
SBVS033A  
9
www.ti.com  
PACKAGE DRAWING  
DBZ (R-PDSO-G3)  
PLASTIC SMALL-OUTLINE  
3,04  
2,80  
2,05  
1,78  
0,60  
0,45  
1,03  
0,89  
2,64  
2,10  
1,40  
1,20  
0,51  
0,37  
1,12  
0,89  
0,100  
0,013  
0,180  
0,085  
0,55 REF  
4203227/A 08/01  
NOTES: A. All linear dimensions are in millimeters.  
B. This drawing is subject to change without notice.  
C. Dimensions are inclusive of plating.  
D. Dimensions are exclusive of mold flash and metal burr.  
REF2912, 2920, 2925, 2930, 2933, 2940  
10  
SBVS033A  
www.ti.com  
PACKAGE OPTION ADDENDUM  
www.ti.com  
3-Oct-2003  
PACKAGING INFORMATION  
ORDERABLE DEVICE  
STATUS(1)  
PACKAGE TYPE  
PACKAGE DRAWING  
PINS  
PACKAGE QTY  
REF2912AIDBZR  
REF2912AIDBZT  
REF2920AIDBZR  
REF2920AIDBZT  
REF2925AIDBZR  
REF2925AIDBZT  
REF2930AIDBZR  
REF2930AIDBZT  
REF2933AIDBZR  
REF2933AIDBZT  
REF2940AIDBZR  
REF2940AIDBZT  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
SOP  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
DBZ  
3
3
3
3
3
3
3
3
3
3
3
3
3000  
250  
3000  
250  
3000  
250  
3000  
250  
3000  
250  
3000  
250  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in  
a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
IMPORTANT NOTICE  
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,  
enhancements, improvements, and other changes to its products and services at any time and to discontinue  
any product or service without notice. Customers should obtain the latest relevant information before placing  
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms  
and conditions of sale supplied at the time of order acknowledgment.  
TI warrants performance of its hardware products to the specifications applicable at the time of sale in  
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI  
deems necessary to support this warranty. Except where mandated by government requirements, testing of all  
parameters of each product is not necessarily performed.  
TI assumes no liability for applications assistance or customer product design. Customers are responsible for  
their products and applications using TI components. To minimize the risks associated with customer products  
and applications, customers should provide adequate design and operating safeguards.  
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,  
copyright, maskworkright, orotherTIintellectualpropertyrightrelatingtoanycombination, machine, orprocess  
in which TI products or services are used. Information published by TI regarding third-party products or services  
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.  
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配单直通车
REF2912AIDBZR产品参数
型号:REF2912AIDBZR
Brand Name:Texas Instruments
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:TEXAS INSTRUMENTS INC
零件包装代码:SOT-23
包装说明:TSSOP, TO-236
针数:3
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:6 weeks
风险等级:1.36
Samacsys Description:1.25V 100ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference
模拟集成电路 - 其他类型:THREE TERMINAL VOLTAGE REFERENCE
JESD-30 代码:R-PDSO-G3
JESD-609代码:e4
长度:2.92 mm
湿度敏感等级:1
功能数量:1
输出次数:1
端子数量:3
最高工作温度:125 °C
最低工作温度:-40 °C
最大输出电流:0.025 A
最大输出电压:1.275 V
最小输出电压:1.225 V
标称输出电压:1.25 V
封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP
封装等效代码:TO-236
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260
认证状态:Not Qualified
座面最大高度:1.12 mm
子类别:Voltage References
最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):1.8 V
标称供电电压 (Vsup):5 V
表面贴装:YES
技术:CMOS
最大电压温度系数:100 ppm/ °C
温度等级:AUTOMOTIVE
端子面层:NICKEL/PALLADIUM/GOLD (NI/PD/AU)
端子形式:GULL WING
端子节距:0.95 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
微调/可调输出:NO
最大电压容差:2%
宽度:1.3 mm
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