型号OPA27
品牌
分类精密运算放大器 (Vos<1mV)
描述超低噪声 (4.5nV/√Hz)、100µV 失调电压、位增益稳定精密运算放大器
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) 44
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8
Vos (offset voltage at 25°C) (max) (mV) 0.22
GBW (typ) (MHz) 8
Slew rate (typ) (V/µs) 1.9
Rail-to-rail No
Offset drift (typ) (µV/°C) 0.4
Iq per channel (typ) (mA) 3.3
Vn at 1 kHz (typ) (nV√Hz) 3.2
CMRR (typ) (dB) 122
Rating Catalog
Operating temperature range (°C) -40 to 85
Input bias current (max) (pA) 80000
Iout (typ) (A) 0.025
Architecture Bipolar
Input common mode headroom (to negative supply) (typ) (V) 3.2
Input common mode headroom (to positive supply) (typ) (V) -3.2
Output swing headroom (to negative supply) (typ) (V) 1.2
Output swing headroom (to positive supply) (typ) (V) -1.2

封装 | 引脚 | 尺寸

PDIP (P) 8 92.5083 mm² 9.81 x 9.43
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • LOW NOISE: 4.5nV/Hz max at 1kHz
  • LOW OFFSET: 100µV max
  • LOW DRIFT: 0.4µV/°C
  • HIGH OPEN-LOOP GAIN: 117dB min
  • HIGH COMMON-MODE REJECTION: 100dB min
  • HIGH POWER-SUPPLY REJECTION: 94dB min
  • FITS OP-07, OP-05, AD510, AND AD517 SOCKETS
  • APPLICATIONS
    • PRECISION INSTRUMENTATION
    • DATA ACQUISITION
    • TEST EQUIPMENT
    • PROFESSIONAL AUDIO EQUIPMENT
    • TRANSDUCER AMPLIFIERS
    • RADIATION HARD EQUIPMENT

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说明

The OPA27 and OPA37 are ultra-low noise, high-precision monolithic operational amplifiers.

Laser-trimmed thin-film resistors provide excellent long-term voltage offset stability and allow superior voltage offset compared to common zener-zap techniques.

A unique bias current cancellation circuit allows bias and offset current specifications to be met over the full –40°C to +85°C temperature range.

The OPA27 is internally compensated for unity-gain stability. The decompensated OPA37 requires a closed-loop gain 5.

The Texas Instruments’ OPA27 and OPA37 are improved replacements for the industry-standard OP-27 and OP-37.