LM7171 (正在供货)


超高速、高输出电流、电压反馈放大器 - LM7171


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.


  • (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


参数 与其它产品相比 高速 运算放大器 (GBW>=50MHz)

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 1kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (Max) (mV)
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 LMH6672
Voltage FB   
Voltage FB   
1    2   
5.5    5   
36    12   
220    90   
2    2   
4100    170   
14    4.5   
14    4.5   
6.5    6.2   
1    5.5   
No    In to V-   
Decompensated    Decompensated   
Catalog    Catalog   
-40 to 85    -40 to 85   
See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
105    110   
10000000    14000000   
35    5   
440    180   
100    200   
75    92   
55    95   
5    1   

WEBENCH® Designer LM7171

Amplifier Topology
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 5.5 to 36.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C