AD7294 Datasheet PDF | Analog Devices

Analog Devices AD7294

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. The AD7294 also includes limit registers for alarm functions.

Part No.	AD7294
Datasheet	AD7294 Download
Manufacturer	Analog Devices
Description	DAC/ADC Temperature Sensor and Current Sense
Buy	Stock & Price

APPLICATIONS

Preliminary Technical Data

FEATURES

4-channel 12-bit DAC Guaranteed monotonic 10 μs settling time 10 mA sink and source capability Offset in for range adjustment Output span: 5 V in 0 to 15 V range 9-channel, 12-bit ADC 200 kSPS throughput Input range: 0 to VREF, 0 to 2 VREF Differential/single-ended Limit registers per channel 2 high-side current sense 48 V max operation ±1% FS accuracy ±200 mV input range 3-channel temperature sensor Diode temperature measurement ±2°C accuracy Measurement range: −10°C to +90°C Internal 2.5 V reference I2C®-compatible serial interface Temperature range: −40°C to +105°C Alert function Package type: LFCSP-56, TQFP-64 AD7294

GENERAL DESCRIPTION

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 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.