AD676
FEATURES
Autocalibrating On-Chip Sample-Hold Function Parallel Output Format 16 Bits No Missing Codes ؎1 LSB INL
- 97 d B THD 90 d B S/(N+D) 1 MHz Full Power Bandwidth
VIN 15 AGND SENSE 14 VREF 16 AGND 13 INPUT BUFFERS
16-Bit 100 k SPS Sampling ADC AD676
FUNCTIONAL BLOCK DIAGRAM
ANALOG CHIP 16-BIT DAC P
CAL DAC LOGIC & TIMING LEVEL TRANSLATORS
DIGITAL CHIP SAR CAL 8 SAMPLE 9 MICRO-CODED CONTROLLER PAT GEN ALU RAM L A T C H
7 BUSY 1 6 19 28 BIT 1
- BIT 16
PRODUCT DESCRIPTION
CLK 10
The AD676 is a multipurpose 16-bit parallel output analog-todigital converter which utilizes a switched-capacitor/charge redistribution architecture to achieve a 100 k SPS conversion rate (10 µs total conversion time). Overall performance is optimized by digitally correcting internal nonlinearities through on-chip autocalibration. The AD676 circuitry is segmented onto two monolithic chips- a digital control chip fabricated on Analog Devices DSP CMOS process and an analog ADC chip fabricated on our Bi MOS II...
