AD7829BRUZ-REEL7

AD7829BRUZ-REEL7 is a high-speed, 8-channel, microprocessor-compatible, 8-bit analogue-to-digital converter with a maximum throughput of 2MSPS. It contains an on-chip reference of 2.5V (2% tolerance); a track-and-hold amplifier; a 420ns, 8-bit half-flash ADC, and a high-speed parallel interface. This converter can operate from a single 3V ±10% and 5V ±10% supply. It combines the convert start and power-down functions at one pin, that is, the active-low CONVST pin. This allows a unique automatic power-down at the end of a conversion to be implemented. The parallel interface is designed to allow easy interfacing with microprocessors and DSPs. Using only address decoding logic, the parts are easily mapped into the microprocessor address space. It is used in applications such as data acquisition systems, DSP front ends, disk drives, mobile communication systems, and subsampling applications.

• On-chip track-and-hold, SNR performance given for input frequencies upto 10MHz
• On-chip reference (2.5V), automatic power-down at the end of conversion
• Flexible parallel interface with (active-low)EOC pulse to allow standalone operation
• Total harmonic distortion is -55dB maximum at (VDD = 3V ±10%, VDD = 5V ±10%, GND = 0V)
• Signal to (noise + distortion) ratio is 48dB minimum at (VDD = 3V ±10%, VDD = 5V ±10%, GND = 0V)
• Integral nonlinearity is ±0.75LSB maximum at (VDD = 3V ±10%, VDD = 5V ±10%, GND = 0V)
• Input range from 0V to 2.5V p-p, VDD = 5V ±10%, conversion time is 420ns maximum
• Temperature coefficient is 50ppm/°C typical at (VDD = 3V ±10%, VDD = 5V ±10%, GND = 0V)
• Gain error is ±2LSB maximum at (VDD = 3V ±10%, VDD = 5V ±10%, GND = 0V)
• Operating temperature range from -40°C to +85°C, 28-lead TSSOP package

Notes

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