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 Op Amps (>=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)
Additional Features
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
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
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   
    In to V-   
Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85   
1.60 | 1ku    1.42 | 1ku    1.22 | 1ku   
See datasheet (PDIP)    8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
8SOIC: 29 mm2: 6 x 4.9(SOIC)   
110    100    90   
1500000    10000000    10000000   
6    2.5    6   
160    320    250   
85    90    186   
50    90    80   
50    100    85   
5    1    1   

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