ADS1243

Features: ` 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-CHI...

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SeekIC No. : 004277024 Detail

ADS1243: Features: ` 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-C...

floor Price/Ceiling Price

Part Number:
ADS1243
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

` 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
` 600W POWER CONSUMPTION
` UP TO EIGHT INPUT CHANNELS
` UP TO EIGHT DATA I/O



Application

· INDUSTRIAL PROCESS CONTROL
· LIQUID/GAS CHROMATOGRAPHY
· BLOOD ANALYSIS
· SMART TRANSMITTERS
· PORTABLE INSTRUMENTATION
· WEIGHT SCALES



Pinout

  Connection Diagram


Specifications

VDD to GND ........................................................................... 0.3V to +6V
Input Current ............................................................... 100mA, Momentary
Input Current ................................................................. 10mA, Continuous
AIN .................................................................... GND 0.5V to VDD + 0.5V
Digital Input Voltage to GND ...................................... 0.3V to VDD + 0.3V
Digital Output Voltage to GND ................................... 0.3V to VDD + 0.3V
Maximum Junction Temperature ...................................................   +150°C
Operating Temperature Range ......................................... 40°C to +85°C
Storage Temperature Range .......................................... 60°C to +100°C
Lead Temperature (soldering, 10s) ..............................................  +300°C



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 of  ADS1242 and ADS1243 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  ADS1242 and ADS1243 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.




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