Intersil HI-674A Manuals

The HI-574A, HI-674A are complete 12-bit Analog-to-Digital Converters with a digital interface for microprocessor control, a +10V reference clock, three-state outputs, and successive approximation conversion performed by two monolithic dice. The analog die features the Intersil Dielectric Isolation process for enhanced AC performance and freedom from latch-up. Custom design of each IC (bipolar analog and CMOS digital) has resulted in improved performance compared to previous versions. The voltage comparator has high PSRR and a high-speed current-mode latch, providing precise decisions down to 0.1 LSB of input overdrive. Noise reduction of more than 2X has been achieved by using current instead of voltage for signal transmission between the analog and digital ICs. The clock oscillator is current controlled for excellent temperature stability. The HI-X74(A) offers standard unipolar and bipolar input ranges, with laser trimming for specified linearity, gain, and offset accuracy. The low noise buried zener reference circuit is trimmed for minimum temperature coefficient.

HI-X74(A) is a complete 12-bit Analog-to-Digital Converter with features including +10V reference clock, three-state outputs, and a digital interface for microprocessor control. It offers improved performance and reduced noise.