型号OPA827
品牌
分类音频运算放大器
描述低噪声、高精度 JFET 输入运算放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
GBW (typ) (MHz) 22
Slew rate (typ) (V/µs) 28
Rail-to-rail No
Vos (offset voltage at 25°C) (max) (mV) 0.15
Iq per channel (typ) (mA) 4.8
Vn at 1 kHz (typ) (nV√Hz) 4
Features Burr-Brown™ Audio
THD + N at 1 kHz (typ) (%) 0.00004
Rating Catalog
Operating temperature range (°C) -40 to 125
Iout (typ) (A) 0.03
Architecture FET
CMRR (typ) (dB) 114
Input bias current (max) (pA) 10

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

  • Input Voltage Noise Density:
    4 nV/√Hz at 1 kHz
  • Input Voltage Noise:
    0.1 Hz to 10 Hz: 250 nVPP
  • Input Bias Current: 10 pA (Maximum)
  • Input Offset Voltage: 150 µV (Maximum)
  • Input Offset Drift: 2 µV/°C (Maximum)
  • Gain Bandwidth: 22 MHz
  • Slew Rate: 28 V/µs
  • Quiescent Current: 4.8 mA/Ch
  • Wide Supply Range: ±4 V to ±18 V
  • Packages: 8-Pin SOIC and 8-Pin VSSOP

说明

The OPA827 series of JFET operational amplifiers combine outstanding DC precision with excellent AC performance. These amplifiers offer low offset voltage (150 µV, maximum), very low drift over temperature (0.5 µV/°C, typical), low-bias current (3 pA, typical), and very low 0.1-Hz to 10-Hz noise (250 nVPP, typical). The device operates over a wide supply voltage range, ±4 V to ±18 V on a low supply current (4.8 mA/Ch, typical).

Excellent AC characteristics, such as a 22-MHz gain bandwidth product (GBW), a slew rate of 28 V/µs, and precision DC characteristics make the OPA827 series well-suited for a wide range of applications including 16-bit to 18-bit mixed signal systems, transimpedance (I/V-conversion) amplifiers, filters, precision ±10-V front ends, and professional audio applications.

The OPA827 is available in both 8-pin SOIC and 8-pin VSSOP surface-mount packages, and is specified from –40°C to 125°C.