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Description:12-Bit, Multichannel, DAC/ADC Temperature Sensor and Current Sense for Monitor and Control Applications
Manufacturer:Analog Devices
Datasheet:PDF (729K).
Click here to download *)

The AD7294 contains all the functions required for generalpurpose monitoring and control of current, voltage, and temperature integrated into a single-chip solution. The part 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 200 kSPS SAR ADC. An internal low ppm reference is provided to drive both the DAC and ADC. Four 12-bit DACs provide the outputs for voltage control. The AD7294 also includes limit registers for alarm functions. The part is designed on a high voltage DMOS process for a high voltage compliance, 48 V on the current-sense inputs, and up to 15 V DAC output voltage. The part is ideal for bias current control of the power transistors used in power amplifiers employed in CDMA, GSM, EDGE, and UMTS cellular base stations.

Click here to download AD7294 Datasheet
Click here to download AD7294 Datasheet
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