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 (#)
Acl, min stable gain (V/V)
BW @ Acl (MHz)
Slew Rate (Typ) (V/us)
Settling Time (0.1%) (Typ) (ns)
Vn at Flatband (Typ) (nV/rtHz)
Vs (Min) (V)
Vs (Max) (V)
Iq per channel (Max) (mA)
Io (Typ) (mA)
3rd Harmonic (dBc)
2nd Harmonic (dBc)
Vos (Max) (mV)
Offset Voltage Drift (+/-) (Max) (uV/Degrees Celsius)
Operating Temperature Range (C)
Approx. Price (US$)
LM6172 LMH6622 LMH6655
Voltage Feedback     Voltage Feedback     Voltage Feedback    
2     2     2    
1     2     1    
160     160     250    
3000     80     200    
65     40     14    
12     1.6     4.5    
5.5     5     4.5    
36     12     12    
3     6     6    
85     90     186    
50     100     85    
50     90     80    
1.5     1.2     3    
4     2.5     6    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
1.60 | 1ku     1.42 | 1ku     1.22 | 1ku    

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