TLC2652A

Features:

 Extremely Low Offset Voltage . . . 1 V Max
 Extremely Low Change on Offset Voltage With Temperature . . . 0.003 V/°C Typ
 Low Input Offset Current 500 pA Max at T_A = 55°C to 125°C
 A_VD . . . 135 dB Min
 CMRR and k_SVR . . . 120 dB Min
 Single-Supply Operation
 Common-Mode Input Voltage Range Includes the Negative Rail
 No Noise Degradation With External Capacitors Connected to V_DD


Pinout




Specifications

Supply voltage V_DD+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 8 V
Supply voltage V_DD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Differential input voltage, V_ID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±16 V
Input voltage, V_I (any input, see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . ±8 V
Voltage range on CLK IN and INT/EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_DD to V_DD + 5.2 V
Input current, I_I (each input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . ±5 mA
Output current, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Duration of short-circuit current at (or below) 25°C (see Note 3) . . . . . . . . . . . . . . . . . unlimited
Current into CLK IN and INT/EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 mA
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....... . See Dissipation Rating Table
Operating free-air temperature range, TA: C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
I suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 85°C
Q suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 125°C
M suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 65°C to 150°C
Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or P package . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or JG package . . . . . .  300°C
NOTES: 1. All voltage values, except differential voltages, are with respect to the midpoint between V_DD+ and V_DD.
2. Differential voltages are at IN+ with respect to IN .
3. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation rating is not exceeded.

Description

The TLC2652 and TLC2652A are high-precision chopper-stabilized operational amplifiers using Texas Instruments Advanced LinCMOSE process. This process in conjunction with unique chopper-stabilization circuitry produces opera tional amplifiers whose performance matches or exceeds that of similar devices available today.

Chopper-stabilization techniques make possible extremely high dc precision by continuously nulling input offset voltage even during variation in temperature, time, common-mode voltage, and power supply voltage. In addition, low-frequency noise voltage is significantly reduced. This high precision, coupled with the extremely high input impedance of the CMOS input stage, makes the TLC2652 and TLC2652A an ideal choice for low-level signal processing applications such as strain gauges, thermocouples, and other transducer amplifiers. For applications that require extremely low noise and higher usable bandwidth, use the TLC2654 or TLC2654A device, which has a chopping frequency of 10 kHz.

The TLC2652 and TLC2652A input common-mode range includes the negative rail, thereby providing superior performance in either single-supply or split-supply applications, even at power supply voltage levels as low as ±1.9 V.

Two external capacitors are required for operation of the device; however, the on-chip chopper-control circuitry is transparent to the user. On devices in the 14-pin and 20-pin packages, the control circuitry is made accessible to allow the user the option of controlling the clock frequency with an external frequency source. In addition, the clock threshold level of the TLC2652 and TLC2652A requires no level shifting when used in the single-supply
configuration with a normal CMOS or TTL clock input.