型号OPA2690
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述具有禁用功能的双路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) 5
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12
GBW (typ) (MHz) 500
BW at Acl (MHz) 500
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 1800
Vn at flatband (typ) (nV√Hz) 5.5
Vn at 1 kHz (typ) (nV√Hz) 5.5
Iq per channel (typ) (mA) 5.5
Vos (offset voltage at 25°C) (max) (mV) 4.5
Rail-to-rail No
Features Shutdown
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 65
Input bias current (max) (pA) 11000000
Offset drift (typ) (µV/°C) 12
Iout (typ) (mA) 190
2nd harmonic (dBc) 68
3rd harmonic (dBc) 70
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

SOIC (D) 14 51.9 mm² 8.65 x 6
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • FLEXIBLE SUPPLY RANGE:
    +5V to +12V Single Supply
    ±2.5V to ±6V Dual Supply
  • WIDEBAND +5V OPERATION: 220MHz (G = 2)
  • HIGH OUTPUT CURRENT: 190mA
  • OUTPUT VOLTAGE SWING: ±4.0V
  • HIGH SLEW RATE: 1800V/µs
  • LOW SUPPLY CURRENT: 5.5mA/ch
  • LOW DISABLE CURRENT: 100µA/ch
  • APPLICATIONS
    • VIDEO LINE DRIVING
    • xDSL LINE DRIVER/RECEIVER
    • HIGH-SPEED IMAGING CHANNELS
    • ADC BUFFERS
    • PORTABLE INSTRUMENTS
    • TRANSIMPEDANCE AMPLIFIERS
    • ACTIVE FILTERS

说明

The OPA2690 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. A new output stage architecture delivers high currents with a minimal headroom requirement. These give exceptional single-supply operation. Using a single +5V supply, the OPA2690 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the OPA2690 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The low 5.5mA/ch supply current of the OPA2690 is precisely trimmed at +25°C. This trim, along with low temperature drift, provides 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, will operate the OPA2690I-14D normally. If pulled LOW, the OPA2690I-14D supply current drops to less than 200µA/ch while the output goes to a high-impedance state.