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AMC7924

ACTIVE

24-channel 12-bit analog monitor and controller with multichannel ADC, bipolar DACs and temp sensor

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Data sheet

AMC7924

ACTIVE
Data sheet Order now

Product details

Number of ADC channels 24 ADC resolution (bps) 12 Number of DAC channels 24 DAC resolution (bps) 12 Temperature sensing Local Number of GPIOs 6 Interface type SPI Operating temperature range (°C) -40 to 125 Rating Catalog ADC sampling rate (ksps) 250 ADC analog input range (min) (V) 0 ADC analog input range (max) (V) 5 DAC settling time (µs) 7 DAC output full-scale (min) (V) -10 DAC output full-scale (max) (V) 10
Number of ADC channels 24 ADC resolution (bps) 12 Number of DAC channels 24 DAC resolution (bps) 12 Temperature sensing Local Number of GPIOs 6 Interface type SPI Operating temperature range (°C) -40 to 125 Rating Catalog ADC sampling rate (ksps) 250 ADC analog input range (min) (V) 0 ADC analog input range (max) (V) 5 DAC settling time (µs) 7 DAC output full-scale (min) (V) -10 DAC output full-scale (max) (V) 10
HTQFP (PAP) 64 144 mm² (12 mm × 12 mm)
  • 24 monotonic 12-bit DACs
    • Programmable ranges: –10 V to 0 V, –5 V to 0 V, 0 V to 5 V, and 0 V to 10 V
    • High current drive capability
    • Autorange detector
  • 24 inputs, 12-bit SAR ADC
    • High sample rate: 250 kSPS
    • Input ranges: 0 V to 5 V and 0 V to 2.5 V
    • Programmable out-of-range alarms
  • 6 FlexIO pins; ADC and GPIO configurable
  • Built-in sequencing features
  • Internal 2.5-V reference
  • Internal temperature sensor
    • Accuracy: ±2.5°C, maximum
    • Resolution: 0.0625°C
  • 4-wire, SPI-compatible interface
    • 1.65-V to 5.5-V operation
  • Specified temperature range: –40°C to +125°C
  • Operating temperature range: –40°C to +150°C
  • 24 monotonic 12-bit DACs
    • Programmable ranges: –10 V to 0 V, –5 V to 0 V, 0 V to 5 V, and 0 V to 10 V
    • High current drive capability
    • Autorange detector
  • 24 inputs, 12-bit SAR ADC
    • High sample rate: 250 kSPS
    • Input ranges: 0 V to 5 V and 0 V to 2.5 V
    • Programmable out-of-range alarms
  • 6 FlexIO pins; ADC and GPIO configurable
  • Built-in sequencing features
  • Internal 2.5-V reference
  • Internal temperature sensor
    • Accuracy: ±2.5°C, maximum
    • Resolution: 0.0625°C
  • 4-wire, SPI-compatible interface
    • 1.65-V to 5.5-V operation
  • Specified temperature range: –40°C to +125°C
  • Operating temperature range: –40°C to +150°C

The AMC7924 is a highly integrated analog monitor and control device designed for high-density, general-purpose monitor and control systems. The AMC7924 includes 24 12-bit digital-to-analog converters (DACs) with programmable output ranges. The device also incorporates a multiplexed, 12-bit analog-to-digital converter (ADC) with programmable threshold detectors, a temperature sensor, and an internal reference. The AMC7924 high level of integration significantly reduces component count and simplifies closed-loop system designs, thus making the device a great choice for high-density applications where board space is critical.

The device includes 24 dedicated ADC inputs and six flexible input/output (FlexIO) pins that can be configured as either additional analog inputs to the ADC or as GPIOs. Communication to the device is performed through a 4-wire, SPI-compatible interface.

The AMC7924 high-integration and wide operating temperature range make the device an excellent choice as an all-in-one bias-control circuit for the power amplifiers (PA) found in multichannel RF communication systems. The flexible DAC output ranges and built-in sequencing features allow the device to be used as a biasing controller for a large variety of transistor technologies, such as LDMOS, GaAs, and GaN. The AMC7924 feature set is similarly beneficial in general-purpose monitor and control systems.

The AMC7924 is a highly integrated analog monitor and control device designed for high-density, general-purpose monitor and control systems. The AMC7924 includes 24 12-bit digital-to-analog converters (DACs) with programmable output ranges. The device also incorporates a multiplexed, 12-bit analog-to-digital converter (ADC) with programmable threshold detectors, a temperature sensor, and an internal reference. The AMC7924 high level of integration significantly reduces component count and simplifies closed-loop system designs, thus making the device a great choice for high-density applications where board space is critical.

The device includes 24 dedicated ADC inputs and six flexible input/output (FlexIO) pins that can be configured as either additional analog inputs to the ADC or as GPIOs. Communication to the device is performed through a 4-wire, SPI-compatible interface.

The AMC7924 high-integration and wide operating temperature range make the device an excellent choice as an all-in-one bias-control circuit for the power amplifiers (PA) found in multichannel RF communication systems. The flexible DAC output ranges and built-in sequencing features allow the device to be used as a biasing controller for a large variety of transistor technologies, such as LDMOS, GaAs, and GaN. The AMC7924 feature set is similarly beneficial in general-purpose monitor and control systems.
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* Data sheet AMC7924 24-Channel, 12-Bit Analog Monitor and Controller With Multichannel ADC, Bipolar DACs, Temperature Sensor, and GPIO Ports datasheet PDF | HTML Nov 5, 2021
Application note Achieving Fast VGS Switching in RF Power Amplifiers in Aerospace and Defense Applications PDF | HTML Dec 13, 2023

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Evaluation board

AMC7924EVM — AMC7924 evaluation module for 24-channel 12-bit analog monitor and controller

The AMC7924 evaluation module (EVM) is an easy-to-use platform for evaluating the functionality and performance of the AMC7924. The EVM leverages the USB2ANY interface adapter to provide a control serial peripheral interface (SPI). The EVM provides access to the digital-to-analog converter (DAC) (...)

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