型号OPA334
品牌
分类精密运算放大器 (Vos<1mV)
描述具有关断功能的单路、0.05uV/°C（最大值）、单电源 CMOS 运算放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5
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) 2
Features EMI Hardened, Shutdown, Zero Drift
Slew rate (typ) (V/µs) 1.6
Rail-to-rail In to V-, Out
Offset drift (typ) (µV/°C) 0.02
Iq per channel (typ) (mA) 0.285
Vn at 1 kHz (typ) (nV√Hz) 60
CMRR (typ) (dB) 130
Rating Catalog
Operating temperature range (°C) -40 to 125
Input bias current (max) (pA) 200
Iout (typ) (A) 0.05
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) 0.015
Output swing headroom (to positive supply) (typ) (V) -0.015

封装 | 引脚 | 尺寸

SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8

特性

  • LOW OFFSET VOLTAGE:5 µV (max)
  • ZERO DRIFT: 0.05 µV/°C (max)
  • QUIESCENT CURRENT: 285 µA
  • SINGLE-SUPPLY OPERATION
  • SINGLE AND DUAL VERSIONS
  • SHUTDOWN
  • MicroSIZE PACKAGES
  • APPLICATIONS
    • TRANSDUCER APPLICATIONS
    • TEMPERATURE MEASUREMENT
    • ELECTRONIC SCALES
    • MEDICAL INSTRUMENTATION
    • BATTERY-POWERED INSTRUMENTS
    • HANDHELD TEST EQUIPMENT

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说明

The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very 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. Single or dual supplies as low as +2.7V (±1.35V) and up to +5.5V (±2.75V) may be used. These op amps are optimized for low-voltage, single-supply operation.

The OPA334 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current of 2µA. When the Enable pin is connected high, the amplifier is active. Connecting Enable low disables the amplifier, and places the output in a high impedance state.

The OPA334 (single version with shutdown) comes in MicroSIZE SOT23-6. The OPA335 (single version without shutdown) is available in SOT23-5, and SO-8. The OPA2334 (dual version with shutdown) comes in MicroSIZE MSOP-10. The OPA2335 (dual version without shutdown) is offered in the MSOP-8 and SO-8 packages. All versions are specified for operation from –40°C to +125°C.