OPA735 Single 0.05uV/degC (max) single-supply CMOS operational amplifier, zero-drift series | TI.com

OPA735
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Single 0.05uV/degC (max) single-supply CMOS operational amplifier, zero-drift series

 

Description

The OPA734 and OPA735 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide low offset voltage (5µV max), and near-zero drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing within 50mV of the rails. Either single or bipolar supplies can be used in the range of +2.7V to +12V (±1.35V to ±6V). They are optimized for low-voltage, single-supply operation.

The OPA734 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current that is 9µA (max) and the output placed in a high-impedance state.

The single version is available in the MicroSIZE SOT23-5 (SOT23-6 for shutdown version) and the SO-8 packages. The dual version is available in the MSOP-8 and SO-8 packages (MSOP-10 only for the shutdown version). All versions are specified for operation from –40°C to +85°C.

Features

  • LOW OFFSET VOLTAGE: 5µV (max)
  • ZERO DRIFT: 0.05µV/°C max
  • QUIESCENT CURRENT: 750µA (max)
  • SINGLE-SUPPLY OPERATION
  • LOW BIAS CURRENT: 200pA (max)
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • WIDE SUPPLY RANGE: 2.7V to 12V
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENTS
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

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Parametrics

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Part number Order Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Offset drift (Typ) (uV/C) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) CMRR (Typ) (dB) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) Output current (Typ) (mA) Features Architecture
OPA735 Order now 1     2.7     12     1.6     1.5     In to V-
Out    
0.005     0.01     0.6     135     130     Catalog     -40 to 85     SOIC | 8
SOT-23 | 5    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
5SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 5)    
200     20         CMOS