TLV2442, TLV2442A, TLV2444, TLV2444A
Advanced LinCMOS RAIL-TO-RAIL OUTPUT
WIDE-INPUT-VOLTAGE OPERATIONAL AMPLIFIERS
SLOS169H – NOVEMBER 1996 – REVISED MARCH 2001
D
D
D
D
D
D
Output Swing Includes Both Supply Rails
Extended Common-Mode Input Voltage
Range . . . 0 V to 4.25 V (Min) at 5-V Single
Supply
No Phase Inversion
Low Noise . . . 16 nV/√Hz Typ at f = 1 kHz
Low Input Offset Voltage
950
µV
Max at T
A
= 25°C (TLV244xA)
Low Input Bias Current . . . 1 pA Typ
D
D
D
D
D
600-Ω Output Drive
High-Gain Bandwidth . . . 1.8 MHz Typ
Low Supply Current . . . 750
µA
Per Channel
Typ
Macromodel Included
Available in Q-Temp Automotive
HighRel Automotive Applications
Configuration Control/Print Support
Qualification to Automotive Standards
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
3
VDD = 3 V
description
The TLV244x and TLV244xA are low-voltage
operational amplifiers from Texas Instruments.
The common-mode input voltage range of these
devices has been extended over typical standard
CMOS amplifiers, making them suitable for a wide
range of applications. In addition, these devices
do not phase invert when the common-mode input
is driven to the supply rails. This satisfies most
design requirements without paying a premium
for rail-to-rail input performance. They also exhibit
rail-to-rail output performance for increased
dynamic range in single- or split-supply
applications. This family is fully characterized at
3-V and 5-V supplies and is optimized for
low-voltage operation. Both devices offer
comparable ac performance while having lower
noise, input offset voltage, and power dissipation
than existing CMOS operational amplifiers. The
TLV244x has increased output drive over
previous rail-to-rail operational amplifiers and can
drive 600-Ω loads for telecommunications
applications.
VOH – High-Level Output Voltage – V
2.5
2
TA = – 40°C
1.5
1
TA = 125°C
0.5
TA = 85°C TA = 25°C
0
0
2
4
6
8
10
12
IOH – High-Level Output Current – mA
Figure 1
The other members in the TLV244x family are the low-power, TLV243x, and micro-power, TLV2422, versions.
The TLV244x, exhibiting high input impedance and low noise, is excellent for small-signal conditioning for
high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels and
low-voltage operation, these devices work well in hand-held monitoring and remote-sensing applications. In
addition, the rail-to-rail output feature with single- or split-supplies makes this family a great choice when
interfacing with analog-to-digital converters (ADCs). For precision applications, the TLV244xA is available with
a maximum input offset voltage of 950
µV.
If the design requires single operational amplifiers, see the TI TLV2211/21/31. This is a family of rail-to-rail output
operational amplifiers in the SOT-23 package. Their small size and low power consumption make them ideal
for high density, battery-powered equipment.
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.
Advanced LinCMOS is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2001, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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•
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1
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