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AD7292
10-Bit Monitor & Control System with ADC, DACs, Temperature Sensor and GPIOs
Overview
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
Product Details
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
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Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation
Application Notes (1)
Software & Systems Requirements
Evaluation Software
Product Recommendations
AD7292 Companion Parts
Recommended Digital Isolators
- For SPI Interface, low power, 5.0 kVrms isolation: ADUM4401.
- For SPI Interface, smallest package, low voltage I/O (1.8 V to 5.5 V): ADUM3481.
- For SPI Interface, lowest power, 2.5 kVrms isolation: ADUM1401.
- For SPI Interface, enhanced system-level ESD performance, 2.5 kVrms isolation: ADUM3401.
Recommended Driver Amplifiers
- For high frequency, low noise, low distortion applications: AD8022, ADA4897-1, ADA4899-1.
- For low frequency, precision, low bias current: ADA4627-1, ADA4000-2, ADA4610-2.
- For precision, low power, low distortion applications: ADA4841-1, ADA4932-1.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
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AD7292 Discussions
Sample & Buy
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.