ADC10738

ADC10731, ADC10732, ADC10734, ADC10738 www.ti.com SNAS081D – MAY 1999 – REVISED MARCH 2013 ADC10731/ADC10732/ADC10734/ADC10738 10-Bit Plus Sign Serial I/O A/D Converters with Mux, Sample/Hold and Reference Check for Samples: ADC10731, ADC10732, ADC10734, ADC10738 FEATURES 1 2 0V to Analog Supply Input Range Serial I/O (MICROWIRE Compatible) Software or Hardware Power Down Analog Input Sample/Hold Function Ratiometric or Absolute Voltage Referencing No Zero or Full Scale Adjustment Required No Missing Codes Over Temperature TTL/CMOS Input/Output Compatible APPLICATIONS Medical Instruments Portable and Remote Instrumentation Test Equipment KEY SPECIFICATIONS Resolution 10 Bits Plus Sign Single Supply 5 V Power Consumption 37 mW (Max) In Power Down Mode 18 μW Conversion Time 5 μs (Max) Sampling Rate 74 kHz (Max) Band-Gap Reference 2.5V ±2% (Max) DESCRIPTION The ADC10731, ADC10732 and ADC10734 are obsolete or on lifetime buy and included for reference only. This series of CMOS 10-bit plus sign successive approximation A/D converters features versatile analog input multiplexers, sample/hold and a 2.5V band-gap reference. The 1-, 2-, 4-, or 8-channel multiplexers can be software configured for singleended or differential mode of operation. An input sample/hold is implemented by a capacitive reference ladder and sampled-data comparator. This allows the analog input to vary during the A/D conversion cycle. In the differential mode, valid output...