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

Product Details

Product Status:Recommended for New Designs

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

Functional Block Diagram for AD7292

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products


Recommended Driver Amplifiers for the AD7292 Recommended External Voltage References - 5.0V for the AD7292
  • For applications requiring the lowest noise performance and output trim adjust, we recommend the ADR445.
  • For high accuracy, low noise, low temperature drift, we recommend the ADR435 or the ADR4550.
  • For a reference buffer amplifier, we recommend the OP177 or the ADA4077-2..

Recommended Digital Isolators for the AD7292

  • For SPI Interface, lowest power, 2.5 kVrms isolation, we recommend the ADuM1401.
  • For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation, we recommend the ADuM3401.
  • For SPI Interface, low power, 5.0 kVrms isolation, we recommend the ADuM4401.
  • For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V), we recommend the ADuM3481.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD7292 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD7292SDZ Status: Production Evaluation Board $59.00 Yes -
EVAL-SDP-CB1Z Status: Production Evaluation Controller Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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