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LTC6912 Datasheet PDF - Linear Technology

LTC6912 image

Part Name
LTC6912

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page
24 Pages

File Size
368.6 kB

MFG CO.
Linear
Linear Technology Linear

DESCRIPTION
The LTC®6912 is a family of dual channel, low noise, digitally programmable gain amplifiers (PGA) that are easy to use and occupy very little PC board space. The gains for both channels are independently programmable using a 3-wire SPI interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100V/V (LTC6912-1 ); and 0, 1, 2, 4, 8, 16, 32, and 64V/V (LTC6912-2). All gains are inverting.


FEATURES
■ 2 Channels with Independent Gain Control LTC6912-1: (0, 1, 2, 5, 10, 20, 50, and 100V/V) LTC6912-2: (0, 1, 2, 4, 8, 16, 32, and 64V/V)
■ Offset Voltage = 2mV Max (–40°C to 85°C)
■ Channel-to-Channel Gain Matching of 0.1dB Max
■ 3-Wire SPITM Interface
■ Extended Gain-Bandwidth at High Gains
■ Wired-OR Outputs Possible (2:1 Analog MUX Function)
■ Low Power Hardware Shutdown (GN-16 Only, 2µA Max at 2.7V)
■ Rail-to-Rail Input Range
■ Rail-to-Rail Output Swing
■ Single or Dual Supply: 2.7V to 10.5V Total
■ Input Noise: 12.6nV/√Hz
■ Total System Dynamic Range to 115dB
■ 16-Pin GN (SSOP) or 12-Pin DFN Package Options


APPLICATIONS
■ Data Acquisition Systems
■ Dynamic Gain Changing
■ Automatic Ranging Circuits
■ Automatic Gain Control


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