AD677
FEATURES
Autocalibrating On-Chip Sample-Hold Function Serial Output 16 Bits No Missing Codes ؎1 LSB INL
- 99 d B THD 92 d B S/(N+D) 1 MHz Full Power Bandwidth
VIN AGND SENSE VR E F AGND 10 9 11 8 INPUT BUFFERS
16-Bit 100 k SPS Sampling ADC AD677
FUNCTIONAL BLOCK DIAGRAM
A CHIP 16-BIT DAC CAL DAC LOGIC TIMING LEVEL TRANSLATORS P
15 BUSY 14 SCLK CAL 16 CLK SAMPLE 2 1 MICROCODED CONTROLLER SAR ALU RAM D CHIP 3 SDATA
PRODUCT DESCRIPTION
PRODUCT HIGHLIGHTS
The AD677 is a multipurpose 16-bit serial 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 AD677 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 process. Both chips are...
