1 Features
• 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

2 Applications
• Active antenna system mMIMO (AAS)
• Macro remote radio unit (RRU)
• Radar
• Data acquisition (DAQ)

3 Description
The AMC7924 is a highly integrated analog monitor
and control device designed for high-density, generalpurpose
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-todigital
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.