Product Summary

The AD7894ARZ-2REEL7 is a fast, 14-bit ADC that operates from a single +5 V supply and is housed in a small 8-lead SOIC. The part contains a 5 ms successive approximation A/D converter, an onchip track/hold amplifier, an on-chip clock and a high speed serial interface. Output data from the AD7894ARZ-2REEL7 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part.

Parametrics

AD7894ARZ-2REEL7 absolute maximum ratings: (1)VDD to GND: -0.3V to +7 V; (2)Analog Input Voltage to GND, AD7894-2: -5 V to +10 V; (3)Reference Input Voltage to GND: -0.3 V to VDD +0.3 V; (4)Digital Input Voltage to GND: -0.3 V to VDD +0.3 V; (5)Digital Output Voltage to GND: -0.3 V to VDD + 0.3 V; (6)Operating Temperature Range, Commercial (A, B Versions): -40℃ to +85℃; (7)Storage Temperature Range: -65℃ to +150℃; (8)Junction Temperature: +150℃; (9)SOIC Package, Power Dissipation: 450 mW.

Features

AD7894ARZ-2REEL7 features: (1)Fast 14-Bit ADC with 5 ms Conversion Time; (2)8-Lead SOIC Package; (3)Single 5 V Supply Operation; (4)High Speed, Easy-to-Use, Serial Interface; (5)On-Chip Track/Hold Amplifier; (6)Selection of Input Ranges, ±10 V for AD7894-10; ±2.5 V for AD7894-3; 0 V to +2.5 V for AD7894-2; (7)High Input Impedance; (8)Low Power: 20 mW Typ; (9)Pin Compatible Upgrade of 12-Bit AD7895.

Diagrams

AD7894ARZ-2REEL7 block diagram

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