Description
a .
The AD7886 is a 12-bit ADC with a sample-and-hold amplifier offering high speed performance combined with low power dissipation.
Features
* 750 kHz/1 MHz Throughput Rate 1 s/750 ns Conversion Time 12-Bit No Missed Codes Over Temperature 67 dB SNR at 100 kHz Input Frequency Low Power
* 250 mW typ Fast Bus Access Time
Applications
* Digital Signal Processing Speech Recognition and Synthesis Spectrum Analysis DSP Servo Control
LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC AD7886
FUNCTIONAL BLOCK DIAGRAM
VDD R3 VIN1 10k R4 VIN2 10k +5REF R1 9k SUM R2 6.3k VREF 4096 RESISTOR DAC AGND
* + T/H 3.5k R5 CLOCK OSCILLATOR AND TIME