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AMC7836_15 Datasheet, PDF (23/87 Pages) Texas Instruments – AMC7836 High-Density, 12-Bit Analog Monitor and Control Solution With Multichannel ADC, Bipolar DACs, Temperature Sensor, and GPIO Ports | |||
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7 Detailed Description
AMC7836
SLAS986B â NOVEMBER 2014 â REVISED FEBRUARY 2015
7.1 Overview
The AMC7836 device is a highly-integrated analog-monitoring and control solution capable of voltage and
temperature supervision. The AMC7836 device includes the following features:
⢠Sixteen 12-bit digital-to-analog converters (DACs) with adjustable output ranges
â Output ranges: â10 to 0 V, â5 to 0 V, 0 to 5 V, and 0 to 10 V
â Auto-range detector on device power-up and reset events
â The DACs power-on and clamp voltages can be pin-selected between AGND and a negative voltage
â The DACs can be configured to clamp automatically upon detection of an alarm event
⢠A multi-channel, 12-bit analog-to-digital converter (ADC) for voltage and temperature sensing
â Sixteen bipolar inputs: â12.5 to 12.5 V input range
â Five precision inputs with programmable threshold detectors: 0 to 5 V input range
â Internal temperature sensor
⢠Internal 2.5 V precision reference
⢠Eight general purpose I/O (GPIO) ports
⢠Communication with the device occurs through a 4-wire SPI-compatible interface supporting 1.8 to 5.5 V
operation
The AMC7836 device is characterized for operation over the temperature range of â40ºC to 125ºC which makes
the device suitable for harsh-condition applications. The device is available in a 10-mm à 10-mm 64-pin HTQFP
PowerPAD IC package.
The very high-integration of the AMC7836 device makes it an ideal all-in-one, low-cost, bias-control circuit for the
power amplifiers (PAs) found in multi-channel RF-communication systems. The flexible DAC output ranges allow
the device to be used as a biasing solution for a large variety of transistor technologies such as LDMOS, GaAs,
and GaN. The AMC7836 feature set is similarly beneficial in general-purpose monitor and control systems.
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