Low-Power Analog-to-Digital Converter and Multiplexer

A serial analog-to-digital converter is described, with a resolution of 9 b at a word rate of 5 kHz for input voltages of ±0.5 V, at a total power dissipation of approximately 10 mW. A 10-channel multiplexer is included. Although designed originally for application in implantable telemetry systems, this design should prove useful for other low-power data acquisition requirements.