AD1674 Datasheet | Analog Devices

a Features plete Monolithic 12-Bit 10 ␮ s Sampling ADC On-Board Sample-and-Hold Amplifier Industry Standard Pinout 8- and 16-Bit Microprocessor Interface AC and DC Specified and Tested Unipolar and Bipolar Inputs ؎5 V, ؎ 10 V, 0 V- 10 V, 0 V- 20 V Input Ranges mercial, Industrial and Military Temperature Range Grades MIL-STD-883 and SMD pliant Versions Available 12/8 CS A 0 CE R/C REF OUT 10V REF CLOCK 12-Bit 100 k SPS A/D Converter AD1674- FUNCTIONAL BLOCK DIAGRAM REGISTERS / 3-STATE OUTPUT BUFFERS CONTROL SAR 12 AGND 20k REF IN 5k BIP OFF 20V P 10k 10k IDAC 12 DB11 (MSB) DB0 (LSB) 5k 2.5k 2.5k SHA 10VIN 5k PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The AD1674 is a plete, multipurpose, 12-bit analog-todigital converter, consisting of a user-transparent onboard sample-and-hold amplifier (SHA), 10 volt reference, clock and three-state output buffers for microprocessor interface. The AD1674 is pin patible with the industry standard AD574A and AD674A, but includes a sampling function while delivering a faster conversion rate. The on-chip SHA has a wide input bandwidth supporting 12-bit accuracy over the full Nyquist bandwidth of the converter. The AD1674 is fully specified for ac parameters (such as S/(N+D) ratio, THD, and IMD) and dc parameters (offset, full-scale error, etc.). With both ac and dc specifications, the AD1674 is ideal for use in signal processing and traditional dc measurement applications. The AD1674 design is implemented using Analog Devices’ Bi MOS II process allowing high performance bipolar analog circuitry to be bined on the same die with digital CMOS logic. Five different temperature grades are available. The AD1674J and K grades are specified for operation over the 0°C to +70°C temperature range. The A and B grades are specified from - 40°C to +85°C; the AD1674T grade is specified from - 55°C to +125°C. The J and K grades are available in both 28-lead plastic DIP and SOIC. The A and B grade...