The AMC7932 is a 32-channel 12-bit analog monitor and controller with multi-channel ADC, bipolar DAC and temperature sensor

The AMC7932 is a highly integrated analog monitoring device designed for high-density general purpose monitoring systems. The AMC7932 includes 32 12-bit digital-to-analog converters (DACs) with programmable output ranges. The device also integrates a multiplexed 12-bit analog-to-digital converter (ADC) with programmable threshold detectors, an AQY410EH temperature sensor, and an internal reference. The high level of integration of the AMC7932 significantly reduces component count and simplifies closed-loop system design, making it an excellent choice for high-density applications where board space is critical.

The device includes flexible input/output (FlexIO) pins that can be configured as analog inputs to the ADC or GPIO with two available options: AMC7932 (six FlexIO pins) and AMC7932F (five FlexIO pins). Communication with the device is performed through a 3-wire (AMC7932) or 4-wire (AMC7932F) SPI-compatible interface.

The high level of integration and wide operating temperature range of the AMC7932 makes the device an excellent choice for an all-in-one bias control circuit for power amplifiers (PAs) in multi-channel RF communication systems. The flexible DAC output range and built-in sequencing allow the device to be used as a bias controller for various transistor technologies such as LDMOS, GaAs, and GaN.

characteristic:

32 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

○Automatic range detector

FlexIO pins; ADC and GPIO configurable

○AMC7932: 6 FlexIO pins

○AMC7932F: 5 FlexIO pins

12-bit, 250kSPS SAR ADC

○Input range: 0 V to 5 V and 0 V to 2.5 V

○ Programmable out-of-range alarm

●General Purpose I/O (GPIO)

●Built-in sorting function

●Internal 2.5V reference

●Internal temperature sensor

○Accuracy: ±2.5°C (max)

○ Resolution: 0.0625°C

SPI Compatible Interface: 1.65-V to 5.5-V Operation

○AMC7932: 3-wire mode

○AMC7932F: 4-wire mode

●Specified temperature range: –40°C to +125°C

●Operating temperature range: –40°C to +150°C

parameter:

Number of ADC channels: 1

ADC resolution (bits): 12

Number of DAC channels (#): 32

DAC: Resolution (bits): 12

Temperature Sensing: Local

General purpose input and output: 6

Interface type: SPI

Features: 32 channels

Operating temperature range (°C): -40 to 125

ADC: Sample Rate (KSPS): 250

ADC: Analog Input Range (Min) (V): 0

ADC: Analog Input Range (Max) (V): 5

DAC: Output full scale (Min) (V): -10

DAC: Output full scale (max) (V): 10