AD7864ASZ-2

AD7864 is a high speed, low power, 4-channel, simultaneous sampling 12bit analogue to digital converter (ADC) that operates from a single 5V supply. The part contains a 1.65μs successive approximation ADC, four track-and-hold amplifiers, a 2.5V reference, an on-chip clock oscillator, signal conditioning circuitry and a high speed parallel interface. The input signals on four channels sample simultaneously preserving the relative phase information of the signals on the four analogue inputs. It is suitable for use in AC motor control, uninterrupted power supplies, data acquisition systems and communications.

• Input ranges: 0V to 2.5V, 0V to 5V
• ±1LSB relative accuracy, 0.35μs track-and-hold acquisition time
• Low power is 90mW typical and power saving mode is 20μW typical
• 1.65μs conversion time per channel
• HW/SW select of channel sequence for conversion
• Single-supply operation
• High speed parallel interface that allows interfacing to 3V processors
• Overvoltage protection on analogue inputs
• 44 lead MQFP package
• Operating temperature range from -40 to 85°C

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