AD7894ARZ-10

AD7894 is a fast, 14-bit ADC. The part contains a 5µs successive approximation A/D converter, an on chip track/hold amplifier, an on-chip clock and a high speed serial interface. Output data from the device is provided via 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. In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the device is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio. The device features a high sampling rate mode and, for low power applications, a proprietary automatic power-down mode where the part automatically goes into power-down once conversion is complete and “wakes up” before the next conversion cycle.

• Single 5V supply operation
• On-chip track/hold amplifier
• Track/hold acquisition time is 0.35µs max
• High input impedance
• Low power is 20mW typ
• Total harmonic distortion (THD) is –86dB max
• –3dB small signal bandwidth is 7.5MHz typ at (VDD = +5V ±5%, GND = 0V, REF IN = +2.5V)
• INL is ±2LSB, input voltage is ±10V, SNR is 77dB
• Operating temperature range is –40°C to +85°C
• Packaging style is 8-lead narrow body SOIC

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party