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廬

SP8527

Micropower Sampling 10-Bit A/D Converter

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Low Cost

10-Bit Serial Sampling ADC

Guaranteed +1.0 LSB Max INL

8-Pin NSOIC Plastic Package

Low Power @ 230碌A(chǔ) including

Automatic Shutdown: 1nA (typ)

Full differential input stage

Single Supply 3.0V to 5.5V operation

Digital Serial Interface

Sample Rate: 26.1碌S

DESCRIPTION

The

SP8527

is a very low power 10-Bit A/D converter. The

SP8527

typically draws 230碌A(chǔ) 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

漏 Copyright 2000 Sipex Corporation

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