SP8527

® SP8527 Micropower Sampling 10-Bit A/D Converter s s s s s s s s s Low Cost 10-Bit Serial Sampling ADC Guaranteed +1.0 LSB Max INL 8-Pin NSOIC Plastic Package Low Power @ 230µA including Automatic Shutdown: 1nA (typ) Full differential input stage Single Supply 3.0V to 5.5V operation Digital Serial Interface Sample Rate: 26.1µS DESCRIPTION The SP8527 is a very low power 10-Bit A/D converter. The SP8527 typically draws 230µA of supply current when sampling at 38.3 kHz. Supply current drops linearly as the sample rate is reduced. The ADC automatically powers down when not performing conversions, drawing only leakage current. The SP8527 is available in 8-Pin NSOIC packages, specified over Commercial and Industrial temperature ranges. The SP8527 is best suited for Battery-Operated Systems, Portable Data Acquisition Instrumentation, Battery Monitoring, and Remote Sensing applications. The serial port allows efficient data transfer to a wide range of microprocessors and microcontrollers over 3 wires. GND VCC REFL Internal VCC 10 REFL DAC VREF Csample P +IN PARALLEL TO SERIAL SHIFT REGISTER INPUT SWITCHES -IN COMPARATOR SAR Dout Csample N CS/SHDN SCLK TIMING & CONTROL LOGIC SP8527 Block Diagram SP8527DS/01 SP8527 Micropower Sampling 10-Bit A/D Converter © Copyright 2000 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of th...