TLC2654, TLC2654A

Advanced LinCMOS

 LOW-NOISE CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001

1

POST OFFICE BOX 655303

0.5

µV (Peak-to-Peak) Typ, f = 0 to 1 Hz

1.5

µV (Peak-to-Peak) Typ, f = 0 to 10 Hz

47 nV/

√Hz Typ, f = 10 Hz

13 nV/

√Hz Typ, f = 1 kHz

10

µV Max (TLC2654A)

With Temperature . . . 0.05

µV/°C Max

Includes the Negative Rail

HighRel Automotive Applications

Configuration Control/Print Support

Qualification to Automotive Standards

description

The TLC2654 and TLC2654A are low-noise

chopper-stabilized operational amplifiers using

the Advanced LinCMOS

 process. Combining

this process with chopper-stabilization circuitry

makes excellent dc precision possible. In addition,

circuit techniques are added that give the

TLC2654 and TLC2654A superior noise perfor-

mance.

Chopper-stabilization techniques provide for extremely high dc precision by continuously nulling input offset

voltage even during variations in temperature, time, common-mode voltage, and power-supply voltage. The

high chopping frequency of the TLC2654 and TLC2654A (see Figure 1) provides excellent noise performance

in a frequency spectrum from near dc to 10 kHz. In addition, intermodulation or aliasing error is eliminated from

frequencies up to 5 kHz.

This high dc precision and low noise, coupled with the extremely high input impedance of the CMOS input stage,

makes the TLC2654 and TLC2654A ideal choices for a broad range of applications such as low-level,

low-frequency thermocouple amplifiers and strain gauges and wide-bandwidth and subsonic circuits. For

applications requiring even greater dc precision, use the TLC2652 or TLC2652A devices, which have a

chopping frequency of 450 Hz.

Copyright

 2001, Texas Instruments Incorporated

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.

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.

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.

Advanced LinCMOS is a trademark of Texas Instruments.

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