AD7899ARZ-2

AD7899 is a fast, low-power, 14-bit A/D converter. Overvoltage protection on the analogue input for the part allows the input voltage to be exceeded without damaging the parts. Speed of conversion can be controlled either by an internally trimmed clock oscillator or by an external clock. A conversion start signal active-low (CONVST) places the track/hold into hold mode and initiates conversion. The BUSY/active-low EOC signal indicates the end of the conversion. Data is read from the part via a 14-bit parallel data bus using the standard active low CS and active low RD signals.

• Conversion time is 2.2µs max
• Throughput rate is 400kSPS
• Track/hold acquisition time is 0.3s
• Single supply operation
• Overvoltage protection on analogue inputs
• Power-saving mode is 20W typ
• Low power is 80mW typ
• High-speed parallel interface which also allows interfacing to 3V processors
• Input voltage range is 0V to 5V, 0V to 2.5V, relative accuracy is ±2LSB
• Operating temperature is –40°C to +85°C, packaging style is small outline

注意

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