AD7896

FEATURES 100 kHz Throughput Rate Fast 12-Bit Sampling ADC with 8 ␮s Conversion Time 8-Lead PDIP and SOIC Single 2.7 V to 5.5 V Supply Operation High Speed, Easy-to-Use Serial Interface On-Chip Track-and-Hold Amplifier Analog Input Range Is 0 V to Supply High Input Impedance Low Power: 9 mW Typ 2.7 V to 5.5 V, 12-Bit, 8 ␮s ADC in 8-Lead SOIC/PDIP AD7896 FUNCTIONAL BLOCK DIAGRAM AD7896 TRACK-AND-HOLD VIN VDD 12-BIT ADC CONVST CLOCK OUTPUT REGISTER AGND DGND BUSY SCLK SDATA GENERAL DESCRIPTION The AD7896 is a fast, 12-bit ADC that operates from a single 2.7 V to 5.5 V supply and is housed in small 8-lead PDIP and 8-lead SOIC packages. The part contains an 8 µs successive approximation ADC, an on-chip track-and-hold amplifier, an on-chip clock, and a high speed serial interface. Output data from the AD7896 is provided via a high speed, serial interface port. This 2-wire serial interface has a serial clock input and a serial data output with the external serial clock accessin...