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LMH6646 - Rail-to-Rail Input and Output Amplifiers

Download the LMH6646 datasheet PDF. This datasheet also covers the LMH6645 variant, as both devices belong to the same rail-to-rail input and output amplifiers family and are provided as variant models within a single manufacturer datasheet.

General Description

The LMH6645 (single) and LMH6646 (dual), rail-to-rail input and output voltage feedback amplifiers, offer high speed (55MHz), and low voltage operation (2.7V) in addition to micro-power shutdown capability (LMH6647, single).

Key Features

  • (VS = 2.7V, TA = 25˚C, RL = 1kΩ to V+/2, AV = +1. Typical values unless specified). n.
  • 3dB BW 55MHz n Supply voltage range 2.5V to 12V n Slew rate 22V/µs n Supply current 650µA/channel n Output short circuit current 42mA n Linear output current ±20mA n Input common mode voltage 0.3V beyond rails n Output voltage swing 20mV from rails n Input voltage noise 17nV/ n Input current noise 0.75pA/.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LMH6645_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LMH6646 Rail-to-Rail Input and Output voltage feedback Amplifiers Texas Instruments
LMH6640 16V Rail-to-Rail High Output Operational Amplifier Texas Instruments
LMH6642 75mA Rail-to-Rail Output Amplifiers Texas Instruments
LMH6642Q-Q1 75mA Rail-to-Rail Output Amplifiers Texas Instruments
LMH6643 75mA Rail-to-Rail Output Amplifiers Texas Instruments

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LMH6640 TFT-LCD Single/ 16V Rail-to-Rail High Output Operational Amplifier
LMH6640 TFT-LCD Single / 16V Rail-to-Rail High Output Operational Amplifier
LMH6642 3V / Low Power / 130MHz / 75mA Rail-to-Rail Output Amplifiers
LMH6642EP 75mA Rail-to-Rail Output Amplifiers
LMH6643 3V / Low Power / 130MHz / 75mA Rail-to-Rail Output Amplifiers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LMH6645/46/47 2.7V, 650µA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option February 2002 LMH6645/46/47 2.7V, 650µA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option General Description The LMH6645 (single) and LMH6646 (dual), rail-to-rail input and output voltage feedback amplifiers, offer high speed (55MHz), and low voltage operation (2.7V) in addition to micro-power shutdown capability (LMH6647, single). Input common mode voltage range exceeds either supply by 0.3V, enhancing ease of use in multitude of applications where previously only inferior devices could be used. Output voltage range extends to within 20mV of either supply rails, allowing wide dynamic range especially in low voltage applications.