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High-speed op amps (GBW>=50MHz)

LM7171

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Very High Speed, High Output Current, Voltage Feedback Amplifier

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Data sheet
Very High Speed, High Output Current, Voltage Feedback Amplifier

LM7171

ACTIVE
Data sheet Order now

Product details

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 GBW (Typ) (MHz) 200 BW @ Acl (MHz) 220 Acl, min spec gain (V/V) 2 Slew rate (Typ) (V/us) 4100 Vn at flatband (Typ) (nV/rtHz) 14 Vn at 1 kHz (Typ) (nV/rtHz) 14 Iq per channel (Typ) (mA) 6.5 Vos (offset voltage @ 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) (uV/C) 35 Output current (Typ) (mA) 100 2nd harmonic (dBc) 75 3rd harmonic (dBc) 55 @ MHz 5
Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 GBW (Typ) (MHz) 200 BW @ Acl (MHz) 220 Acl, min spec gain (V/V) 2 Slew rate (Typ) (V/us) 4100 Vn at flatband (Typ) (nV/rtHz) 14 Vn at 1 kHz (Typ) (nV/rtHz) 14 Iq per channel (Typ) (mA) 6.5 Vos (offset voltage @ 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) (uV/C) 35 Output current (Typ) (mA) 100 2nd harmonic (dBc) 75 3rd harmonic (dBc) 55 @ MHz 5
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PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9
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  • (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
  • (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
open-in-new Find other High-speed op amps (GBW>=50MHz)

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.

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.

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Technical documentation

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Type Title Date
* Data sheet LM7171 Very High Speed, High Output Current, Voltage Feedback Amplifier datasheet (Rev. C) 05 Sep 2014
Technical article 3 common questions when designing with high-speed amplifiers 17 Jul 2020
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs 30 Oct 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? 19 Jun 2018
Technical article Unique active mux capability combines buffer and switch into one solution 10 Oct 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017

Design & development

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Evaluation board

LMH730227 — Evaluation Board for High-Speed Single Op Amp in the 8-Pin SOIC Package

Texas Instruments offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 8-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration. The (...)

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Simulation model

LM7171 PSpice Model (Rev. A)

SNOM205A.ZIP (38 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

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PDIP (P) 8 View options
SOIC (D) 8 View options

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