AD7994

PRELIMINARY TECHNICAL DATA a 4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP AD7994/AD7993 Preliminary Technical Data FUNCTIONAL BLOCK DIAGRAM VDD GND REFIN CONVST FEATURES 12-Bit ADC with Fast Conversion Time: 2 µs Four Single-Ended Analog Input Channels Specified for VDD of 2.7 V to 5.5 V Low Power Consumption Fast Throughput Rate:- 188 KSPS Sequencer Operation Automatic Cycle Mode I2CR Compatible Serial Interface I2CR Interface supports: Standard, Fast, and High-Speed Modes Out of Range Indicator/Alert Function Pin-Selectable Addressing via AS Two Versions Allow Five I2C Addresses Shutdown Mode: 1µA max 16-Lead TSSOP Package AD7994/AD7993 VIN1 VIN2 VIN3 VIN4 T/H I/P MUX 12-/10-BIT SUCCESSIVE APPROXIMATION ADC CONTROL LOGIC OSCILLATOR DATALOW LIMIT REGISTER CH1-CH4 CONVERSION RESULT REGISTER CONFIGURATION REGISTER ALERT STATUS REGISTER CYCLE TIMER REGISTER I2C INTERFACE SCL SDA ALERT DATAHIGH LIMIT REGISTER CH1-CH4 GENERAL DESCRIPTION HYSTERESIS REGISTER CH1-CH4 AS The AD7994/AD7993 are 4 channel, 12-/10-bit, high speed, low power, successive-approximation ADCs respectively. They operate from a single 2.7 V to 5.5 V power supply and feature a conversion time of 2 µs. The parts contain a four channel multiplexer and track/hold amplifier which can handle input frequencies in excess of TBD kHz. The AD7994/AD7993 provide a two-wire serial interface which is compatible with I2C interfaces. The parts come in two versions, AD7994-0/AD7993-0 to ...