ADC10738

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ADC10738 Features

• 0V to 5V analog input range with single 5V power supply
• Serial I/O (MICROWIRE compatible)
• 1-, 2-, 4-, or 8-channel differential or single-ended multiplexer
• 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
• Standard DIP and SO packages

ADC10738 Description

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 single-ended 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 outputs are obtained even when the negative inputs are greater than the positive because of the 10-bit plus sign output data format.

The serial I/O is configured to comply with the NSC MICROWIRE? serial data exchange standard for easy interface to the COPS? and HPC? families of controllers, and can easily interface with standard shift registers and microprocessors.

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