Integrated Circuit Chip ADS1243IPW - Texas Instruments - 24-Bit ANALOG-TO-DIGITAL CONVERTER

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Detailed Product Description

Quick Detail:

 

24-Bit ANALOG-TO-DIGITAL CONVERTER

 

 

Description:

 

The ADS1242 and ADS1243 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.

The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).

The Programmable Gain Amplifier (PGA) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.

The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1242 and ADS1243 are designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.

 

 

Applications:

 

● 24 BITS NO MISSING CODES

● SIMULTANEOUS 50Hz AND 60Hz REJECTION (–90dB MINIMUM)

● 0.0015% INL

● 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)

● PGA GAINS FROM 1 TO 128

● SINGLE-CYCLE SETTLING

● PROGRAMMABLE DATA OUTPUT RATES

● EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V

● ON-CHIP CALIBRATION

● SPI™ COMPATIBLE

● 2.7V TO 5.25V SUPPLY RANGE

● 600µW POWER CONSUMPTION

● UP TO EIGHT INPUT CHANNELS

● UP TO EIGHT DATA I/O

 

 

Specifications:

 

Datasheets

ADS1242,43

Product Photos

20-TSSOP

Product Training Modules

Data Converter Basics

Video File

Nuts and Bolts of the Delta-Sigma Converter

Standard Package ? 

250

Category

Integrated Circuits (ICs)

Family

Data Acquisition - Analog to Digital Converters (ADC)

Series

-

Packaging ? 

Tape & Reel (TR) ?

Number of Bits

24

Sampling Rate (Per Second)

-

Data Interface

Serial, SPI™

Number of Converters

1

Power Dissipation (Max)

1.9mW

Voltage Supply Source

Single Supply

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

20-TSSOP (0.173", 4.40mm Width)

Supplier Device Package

20-TSSOP

Number of Inputs and Type

7 Single-Ended, Unipolar; 4 Differential, Unipolar

Catalog Page

808 (CN081 PDF)

Other Names

ADS1243IPWTTR

 

 

Competitive Advantage:

 

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .


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