HS574A

HS574A/SP674A 12–Bit Sampling A/D Converters s Complete12–bitA/DConverterswithSample– Hold, Reference, Clock and Tri–state Outputs s Low Power Dissipation — 110mW Maximum s 12–Bit Linearity Over Temperature s Fast Conversion time: 25µs Max (HS574A) 15µs Max (SP674A) s Monolithic Construction DESCRIPTION… The HS574A/SP674A 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. They feature 12–bit linearity over temperature, low power dissipation and fast conversion time. They are available in commercial and military temperature ranges. STS DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 DGND 28 27 26 25 24 23 22 21 20 19 18 17 16 15 NIBBLE A NIBBLE B THREE–STATE BUFFERS AND CONTROL NIBBLE C 12–BIT SAR OSC COMP 12–BIT CAPACITANCE DAC CONTROL LOGIC REF OFFSET/GAIN TRIM 7.5K 15K 7.5K 15K N/C 7.5K 1 2 3 4 5 6 7 8 9 10 11 12 13 1...