DESCRIPTION…

The SP574B/674B/1674B/774B (SPx74B) Series are complete 12–bit successive–approximation A/D converters integrated on a single die with tri-state output latches, an internal reference, clock and a sample–hold. The new “B–Series” features true Nyquist sampling while maintaining compatibility with prior versions. They are drop–in replacements for the older 574A/674A/1674A/774A type devices.

■ Complete Monolithic 12–Bit A/D Converters

with Sample–Hold, Reference, Clock and Tri–

state Outputs

■ Full Nyquist Sampling at All Sample Rates

■ Choice of Sampling Rates — 40kHz, 66kHz,

100kHz or 125kHz

■ Low Power Dissipation — 110mW

■ 12–Bit Linearity Over Temperature

■ Commercial, Industrial and MilitaryTemperature Ranges

■ Next–Generation Replacement for 574A, 674A,

1674A, 774A Devices