Texas Instruments ADS1110 Handleiding

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SBAS276A − MARCH 2003 − REVISED NOVEMBER 2003

16-Bit ANALOG-TO-DIGITAL CONVERTER

with Onboard Reference

ADS1110

FEATURES

DCOMPLETE DATA ACQUISITION SYSTEM IN

A TINY SOT23-6 PACKAGE

DONBOARD REFERENCE:

Accuracy: 2.048V ±0.05%

Drift: 5ppm/°C

DONBOARD PGA

DONBOARD OSCILLATOR

D16-BITS NO MISSING CODES

DINL: 0.01% of FSR max

DCONTINUOUS SELF-CALIBRATION

DSINGLE-CYCLE CONVERSION

DPROGRAMMABLE DATA RATE: 15SPS TO

240SPS

DI

2

CINTERFACE—EIGHT AVAILABLE

ADDRESSES

DPOWER SUPPLY: 2.7V to 5.5V

DLOW CURRENT CONSUMPTION: 240µA

APPLICATIONS

DPORTABLE INSTRUMENTATION

DINDUSTRIAL PROCESS CONTROL

DSMART TRANSMITTERS

DCONSUMER GOODS

DFACTORY AUTOMATION

DTEMPERATURE MEASUREMENT

DESCRIPTION

The ADS1110 is a precision, continuously self−calibrating

Analog-to-Digital (A/D) converter with differential inputs and

up to 16 bits of resolution in a small SOT23-6 package. The

onboard 2.048V reference provides an input range of

±2.048V differentially. The ADS1110 uses an I

2

C-compatible

serial interface and operates from a single power supply

ranging from 2.7V to 5.5V.

The ADS1110 can perform conversions at rates of 15, 30, 60,

or 240 samples per second. The onboard programmable

gain amplifier (PGA), which offers gains of up to 8, allows

smaller signals to be measured with high resolution. In

single-conversion mode, the ADS1110 automatically powers

down after a conversion, greatly reducing current

consumption during idle periods.

The ADS1110 is designed for applications requiring

high-resolution measurement, where space and power

consumption are major considerations. Typical applications

include portable instrumentation, industrial process control,

and smart transmitters.

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Copyright  2003, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments

semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

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