參數(shù)資料
型號(hào)： ADS1112IDRCT
英文描述： 16-Bit Analog-to-Digital Converter with Input Multiplexer and Onboard Reference
中文描述： 16位模擬數(shù)字轉(zhuǎn)換器的輸入多路復(fù)用器和內(nèi)建參考
文件頁(yè)數(shù)： 1/18頁(yè)
文件大?。?/td> 682K
代理商： ADS1112IDRCT
FEATURES
COMPLETE DATA ACQUISITION SYSTEM IN
THE MSOP-10 AND LEADLESS QFN-STYLE
PACKAGES
MEASUREMENTS FROM TWO DIFFERENTIAL
CHANNELS OR THREE SINGLE-ENDED
CHANNELS
I
2
C
INTERFACE—EIGHT ADDRESSES PIN-
SELECTABLE
ONBOARD REFERENCE:
Accuracy: 2.048V
±
0.05%
Drift: 5ppm/
°
C
ONBOARD PGA
ONBOARD OSCILLATOR
16 BITS, NO MISSING CODES
INL: 0.01% of FSR max
CONTINUOUS SELF-CALIBRATION
SINGLE-CYCLE CONVERSION
PROGRAMMABLE DATA RATE: 15SPS to
240SPS
POWER SUPPLY: 2.7V to 5.5V
LOW CURRENT CONSUMPTION: 240
μ
A
APPLICATIONS
PORTABLE INSTRUMENTATION
INDUSTRIAL PROCESS CONTROL
SMART TRANSMITTERS
CONSUMER GOODS
FACTORY AUTOMATION
TEMPERATURE MEASUREMENT
DESCRIPTION
The ADS1112 is a precision, continuously self-calibrating
Analog-to-Digital (A/D) converter with two differential or three
single-ended channels and up to 16 bits of resolution in the
small MSOP-10 and leadless QFN-style (small-outline,
no-lead) packages. The onboard 2.048V reference provides
an input range of
±
2.048V differentially. The ADS1112 uses
an I
2
C-compatible serial interface and has two address pins
that allow a user to select one of the eight I
2
C Slave
addresses. The ADS1112 operates from a single power
supply ranging from 2.7V to 5.5V.
The ADS1112 can perform conversions at rates of 15, 30, 60,
or 240 samples per second (SPS). The onboard
programmable gain amplifier (PGA), which offers gains of up
to eight, allows smaller signals to be measured with high
resolution. In single-conversion mode, the ADS1112
automatically powers down after a conversion, greatly
reducing current consumption during idle periods.
The ADS1112 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.
All trademarks are the property of their respective owners.
ADS1112
SBAS282D JUNE 2003 REVISED MARCH 2004
16-Bit Analog-to-Digital Converter with
Input Multiplexer and Onboard Reference
www.ti.com
Copyright
20032004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
!
!
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