ADS1243 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADS1243
Manufacturer

TI
ChipWorker Part#

CW322796596
RoHS

Lead free / RoHS Compliant
Description

24Bit ADC 8CH PGA 1: 128 50/60Hz Notch 0.6mW Power Consumption
Documentation

Datasheet

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ADS1243 Specifications

Attribute	Attribute Value

Part Number	ADS1243
Manufacturer	TI
ChipWorker Part#	CW322796596
Documentation	Datasheet
Mounting Style	Surface Mount
Case/Package	TSSOP-20
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RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product 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.
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
APPLICATIONS
INDUSTRIAL PROCESS CONTROL
LIQUID/GAS CHROMATOGRAPHY
BLOOD ANALYSIS
SMART TRANSMITTERS
PORTABLE INSTRUMENTATION
WEIGHT SCALES
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