型号OPA890
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述具有禁用功能的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 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12
GBW (typ) (MHz) 130
BW at Acl (MHz) 260
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 500
Vn at flatband (typ) (nV√Hz) 8
Vn at 1 kHz (typ) (nV√Hz) 8
Iq per channel (typ) (mA) 1.1
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) 67
Input bias current (max) (pA) 1600000
Offset drift (typ) (µV/°C) 15
Iout (typ) (mA) 40
2nd harmonic (dBc) 88
3rd harmonic (dBc) 89
Frequency of harmonic distortion measurement (MHz) 1

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8

特性

  • FLEXIBLE SUPPLY RANGE:
    +3V to +12V Single Supply
    ±1.5V to ±6V Dual Supplies
  • UNITY-GAIN STABLE
  • WIDEBAND +5V OPERATION: 115MHz
    (G = +2V/V)
  • OUTPUT VOLTAGE SWING: ±4V
  • HIGH SLEW RATE: 500V/µs
  • LOW QUIESCENT CURRENT: 1.1mA
  • LOW DISABLE CURRENT: 30µA
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE DRIVERS/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 OPA890 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 provide exceptional full power bandwidth. Using a single +5V supply, the OPA890 can deliver a 1V to 4V output swing with over 35mA drive current and 220MHz bandwidth. This combination of features makes the OPA890 an ideal RGB line driver or single-supply analog-to-digital converter (ADC) input driver.

The low 1.1mA supply current of the OPA890 is precisely trimmed at +25°C. This trim, along with low temperature drift, ensures lower maximum supply current than competing products. System power may be reduced further using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, operates the OPA890 normally. If pulled LOW, the OPA890 supply current drops to less than 30µA while the output goes into a high-impedance state.