AD7292 10-Bit Monitor & Control System with ADC, DACs, Temperature Sensor and GPIOs

The AD7292 contains all the functionality required for general-purpose monitoring of analog signals and control of external devices, integrated into a single-chip solution. The AD7292 features an 8-channel, 10-bit SAR ADC, four 10-bit DACs, a ±1°C accurate internal temperature sensor, and 12 GPIOs to aid system monitoring and control.

The 10-bit, high speed, low power successive approximation register (SAR) ADC is designed to monitor a variety of single-ended input signals. Differential operation is also available by configuring VIN0 and VIN1 to operate as a differential pair.

The AD7292 offers a register programmable ADC sequencer, which enables the selection of a programmable sequence of channels for conversion.

Four 10-bit digital-to-analog converters (DACs) provide outputs from 0 V to 5 V. An internal, high accuracy, 1.25 V reference provides a separately buffered reference source for both the ADC and the DACs.

A high accuracy band gap temperature sensor is monitored and digitized by the 10-bit ADC to give a resolution of 0.03125°C. The AD7292 also features built-in limit and alarm functions.

The AD7292 is a highly integrated solution offered in a 36-lead LFCSP package with an operating temperature range of −40°C to +125°C.

APPLICATION

Base Station Power Amplifier (PA) Monitoring and Control
RF Control Loops
Optical Communication System Control
General-Purpose System Monitoring and Control

Features and Benefits

10-bit SAR ADC
-- 8 Multiplexed Analog Input Channels
-- Single-ended mode of operation
-- Differential mode of operation
-- 5 V analog input range
-- VREF, 2VREF, or 4VREF input ranges
4 monotonic, 10-bit, 5 V DACs
-- 2µs settling time
-- Power-on reset to 0 V
-- 10 mA sink and source capability

Internal temperature sensor
-- ±1°C accuracy
12 general-purpose Digital I/O pins
Internal 1.25 V reference
Built-in monitoring features
-- Minimum and maximum value register for each channel
-- Programmable alert thresholds
-- Programmable hysteresis
See data sheet for additional features

Analog to Digital Converters

A/D Converters

Software & Systems Requirements

AD7292 Evaluation Software .ZIP

Data Sheets

Document	note
AD7292: 10-Bit Monitor and Control System with ADC, DACs, Temperature Sensor, and GPIOs Data Sheet (Rev. A)	PDF 626 kB

Application Notes

Document	note
AN-1178: AD7292 DAC Disable Function Timing (Rev. 0)	PDF 373 kB

User Guides

Document	note
UG-449: Evaluating the AD7292 10-Bit Monitor and Control System	PDF 1856 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD7292BCPZ Production	36 ld LFCSP (6x6x.85mm) w/3.9 exposed pad	OTH 490	-40 to 125C	4.61	3.92	Y
AD7292BCPZ-RL Production	36 ld LFCSP (6x6x.85mm) w/3.9 exposed pad	REEL 2500	-40 to 125C	0	3.92	Y