Intersil HI-883 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-565A is a fast, 12-bit, current output, digital-to-analog converter produced by Intersil. The monolithic chip includes a precision voltage reference, thin-film R2R ladder, reference control amplifier and twelve high speed bipolar current switches. The Intersil dielectric isolation process provides latch free operation while minimizing stray capacitance and leakage currents, to produce an excellent combination of speed and accuracy. Also, ground currents are minimized to produce a low and constant current through the ground terminal, which reduces error due to code dependent ground currents. HI-565A dice are laser trimmed for a maximum integral nonlinearity error of ±0.5 LSB at 25oC. In addition, the low noise buried zener reference is trimmed both for absolute value and temperature coefficient. Power dissipation is typically 250mW, with ±15V supplies. The HI-565A is offered in both commercial and military grades. See Ordering Information.

The HI-200/883 is a monolithic device comprising two independently selectable SPST switchers which feature fast switching speeds (240ns typical) combined with low power dissipation (15mW typical @ +25°C). Each switch provides low “ON” resistance operation for input signal voltages up to the supply rails and for signal currents up to 25mA continuous. Rugged DI construction eliminates latch-up and substrate SCR failure modes. All devices provide break-before-make switching and are TTL and CMOS compatible for maximum application versatility. HI-200/883 is an ideal component for use in high frequency analog switching. Typical applications include signal path switching, sample and hold circuits, digital filters, and op amp gain switching networks.