型号OPA2735
品牌
分类精密运算放大器 (Vos<1mV)
描述双路 0.05uV/°C（最大值）单电源 CMOS 运算放大器、零温漂系列
相关操作
产品概述

参数

Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.7
Vos (offset voltage at 25°C) (max) (mV) 0.005
GBW (typ) (MHz) 1.6
Features Zero Drift
Slew rate (typ) (V/µs) 1.5
Rail-to-rail In to V-, Out
Offset drift (typ) (µV/°C) 0.01
Iq per channel (typ) (mA) 0.6
Vn at 1 kHz (typ) (nV√Hz) 135
CMRR (typ) (dB) 130
Rating Catalog
Operating temperature range (°C) -40 to 85
Input bias current (max) (pA) 200
Iout (typ) (A) 0.02
Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.1
Input common mode headroom (to positive supply) (typ) (V) -1.5
Output swing headroom (to negative supply) (typ) (V) 0.02
Output swing headroom (to positive supply) (typ) (V) -0.02

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
VSSOP (DGK) 8 14.7 mm² 3 x 4.9

特性

  • 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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说明

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.