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2.5 Ms/s 8-bit low-power flash ADC
The ADC is able to convert the differential analog input signal into a 255 bit thermometer code word. It uses a flash architecture and interpolating comparator preamplifiers, and is destined mainly for disk drive read or communications channels.
Features:
- Resolution: 8 bit
- Maximum conversion rate: 2.5Ms/s
- Differential analog input voltage range: 1.905Vp-p (centered on 1.5Vdc)
- Integral linearity error: 4LSB
- Differential linearity error: 0.5LSB
- Signal-to-noise ratio: 45dB typ (preliminary).
- Equivalent Bit Number: 7.3 typ (preliminary).
- Output data format: 255 bit thermometer code
- Pipelined delay (ADC latency): 1 clock cycles
- External reference input voltages: 1V and 2V (1.5V +/- 0.5V)
- Supply voltage: 3.3V, +/-10% and 1.8V, +/-10%
- Dynamic supply current: 5.75mA typ/3.3V and 50mA typ/1.8V.
- Total power dissipation:19mW
- Power down consumption: 100nA, max.
- Operating temperature: 0 - 100oC
- 0.35mm Digital CMOS Process
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