TLC225x, TLC225xA
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER OPERATIONAL AMPLIFIERS
SLOS176D – FEBRUARY 1997 – REVISED MARCH 2001
D
D
D
D
D
D
Output Swing Includes Both Supply Rails
Low Noise . . . 19 nV/√Hz Typ at f = 1 kHz
Low Input Bias Current . . . 1 pA Typ
Fully Specified for Both Single-Supply and
Split-Supply Operation
Very Low Power . . . 35
µA
Per Channel Typ
Common-Mode Input Voltage Range
Includes Negative Rail
D
D
D
D
Low Input Offset Voltage
850
µV
Max at T
A
= 25°C (TLC225xA)
Macromodel Included
Performance Upgrades for the TS27L2/L4
and TLC27L2/L4
Available in Q–Temp Automotive
HighRel Automotive Applications
Configuration Control / Print Support
Qualification to Automotive Standards
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
60
description
The TLC2252 and TLC2254 are dual and
quadruple operational amplifiers from Texas
Instruments. Both devices exhibit rail-to-rail
output performance for increased dynamic range
in single- or split-supply applications. The
TLC225x family consumes only 35
µA
of supply
current per channel. This micropower operation
makes them good choices for battery-powered
applications. The noise performance has been
dramatically improved over previous generations
of CMOS amplifiers. Looking at Figure 1, the
TLC225x has a noise level of 19 nV/√Hz at 1kHz;
four times lower than competitive micropower
solutions.
Vn
VN – Equivalent Input Noise Voltage – nV/ Hz
nv//Hz
VDD = 5 V
RS = 20
Ω
T = 25°C
50 A
40
30
20
10
The TLC225x amplifiers, exhibiting high input
impedance and low noise, are excellent for
small-signal conditioning for high-impedance
0
sources, such as piezoelectric transducers.
101
10 2
10 3
10 4
Because of the micropower dissipation levels,
f – Frequency – Hz
these devices work well in hand-held monitoring
Figure 1
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 TLC225xA family is available and has a maximum input offset voltage of 850
µV.
This
family is fully characterized at 5 V and
±
5 V.
The TLC2252/4 also makes great upgrades to the TLC27L2/L4 or TS27L2/L4 in standard designs. They offer
increased output dynamic range, lower noise voltage, and lower input offset voltage. This enhanced feature set
allows them to be used in a wider range of applications. For applications that require higher output drive and
wider input voltage ranges, see the TLV2432 and TLV2442 devices. If the design requires single amplifiers,
please see the TLV2211/21/31 family. These devices are single rail-to-rail 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.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
