●The ADC12281 is a monolithic CMOS analog-to-digital converter capable of converting analog input signals into 12-bit digital words at 20 megasamples per second (MSPS). It utilizes a pipeline architecture to minimize die size and power dissipation. Self-calibration and error correction maintain accuracy and performance over temperature.
●The ADC12281 operates on a 5V power supply and can digitize single-ended analog input signals in the range of 0V to 2V. A single convert clock controls the conversion operation and all digital I/O is TTL compatible.
●The ADC12881 is designed to minimize external components necessary for the analog input interface. An internal sample-and-hold circuit samples the single-ended analog input and an internal amplifier buffers the reference voltage input.
●The Power Down feature reduces power consumption to 20 mW, typical.
●The ADC12281 is available in the 32-lead TQFP package and is designed to operate over the industrial temperature range of -40°C to +85°C.
● Single 5V power supply
● Single-ended analog input
● Internal sample-and-hold
● Internal reference buffer amplifier
● Low offset and gain errors
●## Key Specifications
●Resolution
●|
●12 bits
●---|---
●Conversion rate
●|
●up to 20 MSPS
●DNL
●|
●0.35 LSB (typ)
●SNR
●|
●65.5 dB (typ)
●ENOB
●|
●10.5 bits (typ)
●Analog input range
●|
●2 VPP (min)
●Supply voltage
●|
●+5V ±5%
●Power consumption, 20 MHz
●|
●443 mW (typ)
