Texas Instruments TLC2654 Data Sheet

TLC2654, TLC2654A

Advanced Lin CMOS LOW-NOISE CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS SLOS020F – NOVEMBER 1988 – REVISED JULY 1999 Input Noise Voltage D, JG, OR P PACKAGE (TOP VIEW)

0.5 µV (Peak-to-Peak) Typ, f = 0 to 1 Hz 1.5 µV (Peak-to-Peak) Typ, f = 0 to 10 Hz

CXA CXB

47 n V/√Hz Typ, f = 10 Hz

IN– VDD+

13 n V/√Hz Typ, f = 1 k Hz

IN+ OUT

High Chopping Frequency 10 k Hz Typ

VDD– CLAMP

No Clock Noise Below 10 k Hz No Intermodulation Error Below 5 k Hz D, J, OR N PACKAGE

(TOP VIEW)

Low Input Offset Voltage 10 µV Max (TLC2654A)

CXB INT/EXT

Excellent Offset Voltage Stability

CXA CLK IN

With Temperature 0.05 µV/°C Max

NC CLK OUT

AVD 135 d B Min (TLC2654A)

IN– VDD+

CMRR 110 d B Min (TLC2654A) IN+ OUT

k SVR 120 d B Min (TLC2654A) NC CLAMP VDD– C RETURN

Single-Supply Operation Common-Mode Input Voltage Range

FK PACKAGE

Includes the Negative Rail

(TOP VIEW)

No Noise Degradation With External Capacitors Connected to VDD– Available in Q-Temp Automotive High Rel Automotive Applications Configuration Control/Print Support

NC CLK OUT

Qualification to Automotive Standards

NC NC IN– VDD+

description

NC NC IN+ OUT

The TLC2654 and TLC2654A are low-noise chopper-stabilized operational amplifiers using

IN /E

the Advanced Lin CMOS process. Combining

LA LK IN

this process with chopper-stabilization circuitry makes excellent dc precision possible. In addition, circuit techniques are added that give the TLC2654 and TLC2654A noise performance NC – No internal connection unsurpassed by similar devices. 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 k Hz. In addition, intermodulation or aliasing error is eliminated from frequencies up to 5 k Hz. 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.

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 Lin CMOS is a trademark of Texas Instruments Incorporated.

Copyright  1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments On products compliant to MIL-PRF-38535, all parameters are tested standard warranty. Production processing does not necessarily include unless otherwise noted. On all other products, production testing of all parameters. processing does not necessarily include testing of all parameters.

1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265