型号OPA694
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述宽带、低功耗、电流反馈放大器
相关操作
产品概述

参数

Architecture Current FB
Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6
GBW (typ) (MHz) 1500
BW at Acl (MHz) 1500
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 1700
Vn at flatband (typ) (nV√Hz) 2.1
Vn at 1 kHz (typ) (nV√Hz) 2.1
Iq per channel (typ) (mA) 5.8
Vos (offset voltage at 25°C) (max) (mV) 3
Rail-to-rail No
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 60
Input bias current (max) (pA) 20000000
Offset drift (typ) (µV/°C) 15
Iout (typ) (mA) 80
2nd harmonic (dBc) 68
3rd harmonic (dBc) 72
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8

特性

  • UNITY GAIN STABLE BANDWIDTH: 1.5GHz
  • HIGH GAIN OF 2V/V BANDWIDTH: 690MHz
  • LOW SUPPLY CURRENT: 5.8mA
  • HIGH SLEW RATE: 1700V/µsec
  • HIGH FULL-POWER BANDWIDTH: 675MHz
  • LOW DIFFERENTIAL GAIN/PHASE: 0.03%/0.015°
  • Pb-FREE AND GREEN SOT23-5 PACKAGE
  • APPLICATIONS
    • WIDEBAND VIDEO LINE DRIVER
    • MATRIX SWITCH BUFFER
    • DIFFERENTIAL RECEIVER
    • ADC DRIVER
    • IMPROVED REPLACEMENT FOR OPA658

说明

The OPA694 is an ultra-wideband, low-power, current feedback operational amplifier featuring high slew rate and low differential gain/phase errors. An improved output stage provides ±80mA output drive with < 1.5V output voltage headroom. Low supply current with > 500MHz bandwidth meets the requirements of high-density video routers. Being a current feedback design, the OPA694 holds its bandwidth to very high gains—at a gain of 10, the OPA694 will still provide 200MHz bandwidth.

RF applications can use the OPA694 as a low-power SAW pre-amplifier. Extremely high 3rd-order intercept is provided through 70MHz at much lower quiescent power than many typical RF amplifiers.

The OPA694 is available in an industry-standard pinout in both SO-8 and SOT23-5 packages.