LM7171 Very High Speed, High Output Current, Voltage Feedback Amplifier | TI.com

LM7171 (ACTIVE)

Very High Speed, High Output Current, Voltage Feedback Amplifier

 

Description

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 200 MHz while consuming only 6.5 mA of supply current. It is ideal for video and high speed signal processing applications such as HDSL and pulse amplifiers. With 100 mA 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.

Features

  • (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

Parametrics

Compare all products in High-speed op amps (GBW>=50MHz) Email Download to Excel
Part number Order Architecture Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) BW @ Acl (MHz) Acl, min spec gain (V/V) Slew rate (Typ) (V/us) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (Max) (mV) Rail-to-rail Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) CMRR (Typ) (dB) Input bias current (Max) (pA) Offset drift (Typ) (uV/C) GBW (Typ) (MHz) Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz
LM7171 Order now Bipolar
Voltage FB    
1     5.5     36     220     2     4100     14     14     6.5     1     No     Decompensated     Catalog     -40 to 85     PDIP | 8
SOIC | 8    
See datasheet (PDIP)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
105     10000000     35     440     100     75     55     5    
LMH6672 Order now Bipolar
Voltage FB    
2     5     12     90     2     170     4.5     4.5     6.2     5.5     In to V-     Decompensated     Catalog     -40 to 85     SO PowerPAD | 8
SOIC | 8    
8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
110     14000000     5     180     200     92     95     1