Very High Speed, High Output Current, Voltage Feedback Amplifier - LM7171QML-SP


Very High Speed, High Output Current, Voltage Feedback Amplifier



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 ±15V 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 ±5V operation for portable applications.

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


  • (Typical Unless Otherwise Noted)
  • Easy-To-Use Voltage Feedback Topology
  • Very High Slew Rate: 2400V/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
  • Specified for ±15V and ±5V Operation
  • Available with Radiation Guarantee
    • Total Ionizing Dose 300 Krad(Si)
    • ELDRS Free 300 Krad(Si)

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Parametrics Compare all products in Operational Amplifiers

Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Operating Temperature Range (C)
Package Group
Output Current (Typ) (mA)
Offset Drift (Typ) (uV/C)
Vn at 1kHz (Typ) (nV/rtHz)
Additional Features
IIB (Max) (pA)
CMRR (Typ) (dB)
Package Size: mm2:W x L (PKG)
1    1    2    1   
5.5    5.5    5    10   
36    36    12    12   
440    440    300    1700   
4100    4100    550    3100   
3    3    2    4.5   
6.5    6.5    9    15   
Space    Military    Catalog    Space   
-55 to 125    -55 to 125    -40 to 85    -55 to 125   
100    100    85    80   
35    35    5    0.3   
14    14    2    4.5   
Voltage FB
Voltage FB
Voltage FB   
Voltage FB   
Decompensated    Decompensated    N/A    N/A   
10000000    10000000    20000000    30000000   
105    105    62     
See datasheet (CDIP)
See datasheet (CFP)   
See datasheet (CFP)    8SOIC: 29 mm2: 6 x 4.9(SOIC)    See datasheet (CDIP)
See datasheet (CFP)   

Other qualified versions of LM7171QML-SP

Version Part Number Definition
Military LM7171QML QML certified for Military and Defense Applications