型号OPA2889
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述具有禁用功能的双通道 115MHz 低功耗宽带电压反馈运算放大器
相关操作
产品概述

参数

Architecture Voltage FB
Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.6
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12
GBW (typ) (MHz) 115
BW at Acl (MHz) 115
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 250
Vn at flatband (typ) (nV√Hz) 8.4
Vn at 1 kHz (typ) (nV√Hz) 8.4
Iq per channel (typ) (mA) 0.46
Vos (offset voltage at 25°C) (max) (mV) 5
Rail-to-rail No
Features Shutdown
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 70
Input bias current (max) (pA) 750000
Offset drift (typ) (µV/°C) 20
Iout (typ) (mA) 40
2nd harmonic (dBc) 75
3rd harmonic (dBc) 80
Frequency of harmonic distortion measurement (MHz) 1

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
VSSOP (DGS) 10 14.7 mm² 3 x 4.9

特性

  • FLEXIBLE SUPPLY RANGE:
    +2.6V to +12V Single Supply
    ±1.3V to ±6V Dual Supplies
  • UNITY-GAIN STABLE
  • WIDEBAND ±5V OPERATION: 60MHz
    (G = +2V/V)
  • OUTPUT VOLTAGE SWING: ±4V
  • HIGH SLEW RATE: 250V/µs
  • LOW QUIESCENT CURRENT: 460µA/ch
  • LOW DISABLE CURRENT: 18µA/ch
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE RECEIVERS
    • HIGH-SPEED IMAGING CHANNELS
    • ADC BUFFERS
    • PORTABLE INSTRUMENTS
    • TRANSIMPEDANCE AMPLIFIERS
    • ACTIVE FILTERS

All other trademarks are the property of their respective owners.

说明

The OPA2889 represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. These capabilities give exceptional full-power bandwidth. Using a dual ±5V supply, the OPA2889 can deliver a ±4V output swing with over 40mA drive current and 60MHz bandwidth. This combination of features makes the OPA2889 an ideal RGB line driver or single-supply analog-to-digital converter (ADC) input driver or low power twisted pair line receiver.

The low 460µA/ch supply current of the OPA2889 is precisely trimmed at +25°C. System power may be reduced further using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, operates the OPA2889 normally. If pulled LOW, the OPA2889 supply current drops to less than 20µA/ch while the output goes into a high-impedance state.