AD7294BCPZRL datasheet(1/48 Pages) AD

номер детали	AD7294BCPZRL

подробное описание детали	12-Bit Monitor and Control System with Multichannel

PDF	48 Pages

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производитель	AD [Analog Devices]

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12-Bit Monitor and Control System with Multichannel

ADC, DACs, Temperature Sensor, and Current Sense

Data Sheet

AD7294

Rev. I

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rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

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FEATURES

12-bit SAR ADC with 3 μs conversion time

4 uncommitted analog inputs

Differential/single-ended

VREF, 2 × VREF input ranges

2 high-side current sense inputs

5 V to 59.4 V operating range

0.5% max gain error

±200 mV input range

2 external diode temperature sensor inputs

−55°C to +150°C measurement range

±2°C accuracy

Series resistance cancellation

1 internal temperature sensor

±2°C accuracy

Built-in monitoring features

Minimum/maximum recorder for each channel

Programmable alert thresholds

Programmable hysteresis

Four 12-bit monotonic 15 V DACs

5 V span, 0 V to 10 V offset

8 μs settling time

10 mA sink and source capability

Power-on resets (POR) to 0 V

Internal 2.5 V reference

2-wire fast mode I2C interface

Temperature range: −40°C to +105°C

Package type: 64-lead TQFP or 56-lead LFCSP

APPLICATIONS

Cellular base stations

GSM, EDGE, UMTS, CDMA, TD-SCDMA, W-CDMA, WiMAX

Point-to-multipoint and other RF transmission systems

12 V, 24 V, 48 V automotive applications

Industrial controls

GENERAL DESCRIPTION

The AD7294 contains all the functions required for general-

purpose monitoring and control of current, voltage, and

temperature integrated into a single-chip solution. The device

includes low voltage (±200 mV) analog input sense amplifiers

for current monitoring across shunt resistors, temperature sense

inputs, and four uncommitted analog input channels multiplexed

into a SAR analog-to-digital converter (ADC) with a 3 μs conver-

sion time. A high accuracy internal reference is provided to drive

both the digital-to-analog converter (DAC) and ADC. Four 12-bit

DACs provide the outputs for voltage control. The AD7294 also

includes limit registers for alarm functions. The device is designed

on Analog Devices, Inc., high voltage DMOS process for high

voltage compliance, 59.4 V on the current sense inputs, and up

to a 15 V DAC output voltage.

The AD7294 is a highly integrated solution that offers all the

functionality necessary for precise control of the power amplifier

in cellular base station applications. In these types of applications,

the DACs provide 12-bit resolution to control the bias currents

of the power transistors. Thermal diode-based temperature sensors

are incorporated to compensate for temperature effects. The ADC

monitors the high-side current and temperature. All this function-

ality is provided in a 64-lead TQFP or a 56-lead LFCSP operating

over a temperature range of −40°C to +105°C.

Аналогичный номер детали - AD7294BCPZRL

производитель	номер детали	датащи	подробное описание детали
Analog Devices	AD7294	682Kb / 45P	12-Bit, Multichannel, DAC/ADC Temperature Sensor and Current Sense for Monitor and Control Applications Oct-2005
	AD7294-2	1,006Kb / 45P	12-Bit Monitor and Control System 23-Feb-2017
	AD7294-2BSUZ	1,006Kb / 45P	12-Bit Monitor and Control System 23-Feb-2017
	AD7294-2BSUZ-RL	1,006Kb / 45P	12-Bit Monitor and Control System 23-Feb-2017

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Аналогичное описание - AD7294BCPZRL

производитель	номер детали	датащи	подробное описание детали
Analog Devices	AD7294	682Kb / 45P	12-Bit, Multichannel, DAC/ADC Temperature Sensor and Current Sense for Monitor and Control Applications Oct-2005
Mean Well Enterprises C...	RCP-MU	313Kb / 3P	Power Control and Monitor System
Texas Instruments	UCD90124	2Mb / 44P	12-Rail Sequencer and System Health Monitor With Fan Control
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Mean Well Enterprises C...	RCP-MU	315Kb / 3P	Power Control and Monitor System
Texas Instruments	AMC7812	2Mb / 90P	12-Bit ANALOG MONITORING AND CONTROL SOLUTION with Multichannel ADC, DACs, and Temperature Sensors
	AMC7834	3Mb / 90P	AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities
	AMC7812B	2Mb / 92P	12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors
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Analog Devices	AD7294-2	1,006Kb / 45P	12-Bit Monitor and Control System 23-Feb-2017

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