Dual High Speed, Low Power, Low Distortion Voltage Feedback Amplifiers - LM6172


Dual High Speed, Low Power, Low Distortion Voltage Feedback Amplifiers


The LM6172 is a dual high speed voltage feedback amplifier. It is unity-gain stable and provides excellent DC and AC performance. With 100MHz unity-gain bandwidth, 3000V/μs slew rate and 50mA of output current per channel, the LM6172 offers high performance in dual amplifiers; yet it only consumes 2.3mA of supply current each channel.

The LM6172 operates on ±15V power supply for systems requiring large voltage swings, such as ADSL, scanners and ultrasound equipment. It is also specified at ±5V power supply for low voltage applications such as portable video systems.

The LM6172 is built with TI's advanced VIP III (Vertically Integrated PNP) complementary bipolar process. See the LM6171 datasheet for a single amplifier with these same features.


  • (Typical Unless Otherwise Noted)
  • Easy to Use Voltage Feedback Topology
  • High Slew Rate 3000V/μs
  • Wide Unity-Gain Bandwidth 100MHz
  • Low Supply Current 2.3mA/Channel
  • High Output Current 50mA/channel
  • Specified for ±15V and ±5V Operation

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Parametrics Compare all products in High Speed Amplifier (>=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)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (Max) (mV)
@ MHz
CMRR (Typ) (dB)
IIB (Max) (nA)
Offset Drift (Typ) (uV/C)
GBW (Typ) (MHz)
Io (Typ) (mA)
2nd Harmonic (dBc)
3rd Harmonic (dBc)
Operating Temperature Range (C)
Approx. Price (US$)
LM6172 LMH6622 LMH6655
Voltage FB
Voltage FB
Voltage FB
2     2     2    
5.5     5     4.5    
36     12     12    
160     160     250    
1     2     1    
3000     80     200    
12     1.6     4.5    
2.3     4.3     4.5    
1.5     1.2     3    
5     1     1    
    In to V-    
110     100     90    
3000     10000     10000    
6     2.5     6    
160     320     250    
85     90     186    
50     90     80    
50     100     85    
Military     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
  1.42 | 1ku     1.22 | 1ku    

Related end equipment

  • Scanner I-to-V Converters
  • ADSL/HDSL Drivers
  • Multimedia Broadcast Systems
  • Video Amplifiers
  • NTSC, PAL and SECAM Systems
  • ADC/DAC Buffers
  • Pulse Amplifiers and Peak Detectors

Featured tools and software

WEBENCH® Designer LM6172

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