型号LM7171
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述超高速、高输出电流、电压反馈放大器
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) 5.5
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
GBW (typ) (MHz) 200
BW at Acl (MHz) 220
Acl, min spec gain (V/V) 2
Slew rate (typ) (V/µs) 4100
Vn at flatband (typ) (nV√Hz) 14
Vn at 1 kHz (typ) (nV√Hz) 14
Iq per channel (typ) (mA) 6.5
Vos (offset voltage at 25°C) (max) (mV) 1
Rail-to-rail No
Features Decompensated
Rating Catalog
Operating temperature range (°C) -40 to 85
CMRR (typ) (dB) 105
Input bias current (max) (pA) 10000000
Offset drift (typ) (µV/°C) 35
Iout (typ) (mA) 100
2nd harmonic (dBc) 75
3rd harmonic (dBc) 55
Frequency of harmonic distortion measurement (MHz) 5

封装 | 引脚 | 尺寸

PDIP (P) 8 92.5083 mm² 9.81 x 9.43
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • (Typical Unless Otherwise Noted)
  • Easy-to-Use Voltage Feedback Topology
  • Very High Slew Rate: 4100 V/µs
  • Wide Unity-Gain Bandwidth: 200 MHz
  • −3 dB Frequency @ AV = +2: 220 MHz
  • Low Supply Current: 6.5 mA
  • High Open Loop Gain: 85 dB
  • High Output Current: 100 mA
  • Differential Gain and Phase: 0.01%, 0.02°
  • Specified for ±15V and ±5V Operation

说明

The LM7171 is a high speed voltage feedback amplifier that has the slewing characteristic of a current feedback amplifier, yet it can be used in all traditional voltage feedback amplifier configurations. The LM7171 is stable for gains as low as +2 or −1. It provides a very high slew rate at 4100V/µs and a wide unity-gain bandwidth of 200MHz while consuming only 6.5mA of supply current. It is ideal for video and high speed signal processing applications such as HDSL and pulse amplifiers. With 100mA output current, the LM7171 can be used for video distribution, as a transformer driver or as a laser diode driver.

Operation on ±15 V power supplies allows for large signal swings and provides greater dynamic range and signal-to-noise ratio. The LM7171 offers low SFDR and THD, ideal for ADC/DAC systems. In addition, the LM7171 is specified for ±5 V operation for portable applications.

The LM7171 is built on TI's advanced VIP III (Vertically integrated PNP) complementary bipolar process.