ADC1038

ADC1038 10-Bit Serial I/O A/D Converter with Analog Multiplexer and Track/Hold Function June 1999 ADC1038 10-Bit Serial I/O A/D Converter with Analog Multiplexer and Track/Hold Function General Description The ADC1038 is a 10-bit successive approximation A/D converters with serial I/O. The serial input controls a single-ended analog multiplexer that selects one of 8 input channels. The serial output data can be configured into a left- or right-justified format. An input track/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. Separate serial I/O and conversion clock inputs are provided to facilitate the interface to various microprocessors. Features n Serial I/O ( MICROWIRE™ compatible) n Separate asynchronous converter clock and serial data I/O clock n Analog input track/hold function n Ratiometric or absolute voltage referencing n No zero or full scale adjustment required n 0V to 5V analog input range with single 5V power supply n TTL/MOS input/output compatible n No missing codes Applications n n n n Engine control Process control Instrumentation Test equipment Key Specifications n n n n n n Resolution Total unadjusted error Single supply Power dissipation Max. conversion time (fC = 3 MHz) Serial data exchange time (fS = 1 MHz) 10 bit ± 1 LSB (max) 5V ± 5% 20 mW (max) 13.7 µs (max) 10 µs (max) Connection Diagrams SO Package DS010556-2 Top View ADC1038 In NS Package...