Analog Devices Inc. AD7294-2BSUZ

Description
The AD7294-2 is a highly integrated monitoring and control solution that combines a 12-bit SAR ADC, four uncommitted analog inputs, two high-side current sense inputs, two external diode temperature sensor inputs, four 12-bit DACs, and a 12-bit monitoring and control system. It operates over a wide voltage range (5V to 59.4V) and offers high accuracy (0.75% maximum gain error, ±2°C temperature sensor accuracy). The AD7294-2 is designed for high voltage compliance (59.4V on current sense inputs, 15V DAC output voltage) and features built-in monitoring features such as minimum/maximum recorders, programmable alert thresholds, and programmable hysteresis.

Features
12-bit SAR ADC with 3 µs conversion time
4 uncommitted analog inputs
Differential/single-ended Vis, 2x Var input ranges
2 high-side current sense inputs
5V to 59.4V operating range
0.75% maximum 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
12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense
Minimum/maximum recorder for each channel
Programmable alert thresholds
Programmable hysteresis
Four 12-bit, monotonic, 15V DACs
5V span, 0V to 10V offset
8 µs settling time
10 mA sink and source capability
Power-on reset (POR) to 0V
Internal 2.5V reference
2-wire, fast mode I²C interface
Temperature range: -40°C to 105°C
Package type: 64-lead TQFP
Pin compatible with the AD7294

Applications
Cellular base stations (GSM, EDGE, UMTS, CDMA, TD-SCDMA, W-CDMA, WIMAX)
Point-to-multipoint and other RF transmission systems
12V, 24V, 48V automotive applications
Industrial controls