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AD7292BCPZ

更新时间: 2024-10-29 01:12:35
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亚德诺 - ADI /
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41页 734K
描述
10-Bit Monitor and Control System with ADC,DACs, Temperature Sensor, and GPIOs

AD7292BCPZ 数据手册

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10-Bit Monitor and Control System with ADC,  
DACs, Temperature Sensor, and GPIOs  
Data Sheet  
AD7292  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
REF  
REF DV  
IN  
AV  
V
DD DRIVE  
OUT  
DD  
10-bit SAR ADC  
8 multiplexed analog input channels  
Single-ended mode of operation  
Differential mode of operation  
5 V analog input range  
TEMPERATURE  
SENSOR  
÷4  
AD7292  
1.25V  
REF  
BUF  
BUF  
VIN0  
VIN1  
VIN2  
VIN3  
VIN4  
VIN5  
VIN6  
VIN7  
10-BIT  
DAC  
V
REF, 2 × VREF, or 4 × VREF input ranges  
VOUT0  
VOUT1  
VOUT2  
VOUT3  
Input measured with respect to AGND or VDD  
4 monotonic, 10-bit, 5 V DACs  
2 µs settling time  
10-BIT  
SAR ADC  
CONTROL  
LOGIC  
10-BIT  
DAC  
MUX  
T/H  
Power-on reset to 0 V  
10-BIT  
DAC  
10 mA sink and source capability  
Internal temperature sensor  
1°C accuracy  
12 general-purpose digital I/O pins  
Internal 1.25 V reference  
10-BIT  
DAC  
ALERT AND LIMIT  
REGISTERS  
Built-in monitoring features  
Minimum and maximum value register for each channel  
Programmable alert thresholds  
Programmable hysteresis  
SPI  
INTERFACE  
DIGITAL I/Os  
SPI interface  
Temperature range: −40°C to +125°C  
Package type: 36-lead LFCSP  
APPLICATIONS  
Base station power amplifier (PA) monitoring and control  
RF control loops  
Optical communication system control  
General-purpose system monitoring and control  
Figure 1.  
GENERAL DESCRIPTION  
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.  
Four 10-bit digital-to-analog converters (DACs) provide outputs  
from 0 V to 5 V. A n 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 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 is a highly integrated solution offered in a 36-lead  
LFCSP package with an operating temperature range of −40°C  
to +125°C.  
The AD7292 offers a register programmable ADC sequencer,  
which enables the selection of a programmable sequence of  
channels for conversion.  
Rev. A  
Document Feedback  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rightsof third parties that may result fromits use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks andregisteredtrademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 ©2012–2014 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 

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AD7292BCPZ-RL ADI

完全替代

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

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