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ADS1254

Features: ` 24 BITS-NO MISSING CODES` 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE` LOW NOISE: 1.8ppm` FOUR DIFFERENTIAL INPUTS` INL: 15ppm (max)` EXTERNAL REFERENCE (0.5V to 5V)` POWER-DOWN MODE` SYNC MODE` LOW POWER: 4mW at 20kHz` SEPARATE DIGITAL INTERFACE SUPPLY 1.8V to 3.6VApplication· ...

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SeekIC No. : 004277031 Detail

ADS1254: Features: ` 24 BITS-NO MISSING CODES` 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE` LOW NOISE: 1.8ppm` FOUR DIFFERENTIAL INPUTS` INL: 15ppm (max)` EXTERNAL REFERENCE (0.5V to 5V)` POWER-DOWN M...

ADS1254 Data Sheet

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Part Number:
ADS1254
Supply Ability:
5000

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

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Product Details

Description



Features:

` 24 BITS-NO MISSING CODES
` 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
` LOW NOISE: 1.8ppm
` FOUR DIFFERENTIAL INPUTS
` INL: 15ppm (max)
` EXTERNAL REFERENCE (0.5V to 5V)
` POWER-DOWN MODE
` SYNC MODE
` LOW POWER: 4mW at 20kHz
` SEPARATE DIGITAL INTERFACE SUPPLY 1.8V to 3.6V


Application

· CARDIAC DIAGNOSTICS
· DIRECT THERMOCOUPLE INTERFACES
· BLOOD ANALYSIS
· INFRARED PYROMETERS
· LIQUID/GAS CHROMATOGRAPHY
· PRECISION PROCESS CONTROL


Pinout

Connection Diagram


Specifications

Analog Input: Current (Momentary) ............................................ ±100mA
(Continuous) ...............................................                                   ±10mA
                         Voltage ................................... GND 0.3V to VDD + 0.3V
AVDD to AGND .......................................................................  0.3V to 6V
DVDD to AVDD .........................................................................6V to +6V
DVDD to DGND ....................................................................... 0.3V to 6V
VREF Voltage to AGND .............................................  0.3V to VDD + 0.3V
Digital Input Voltage to DGND .................................  0.3V to VDD + 0.3V
Digital Output Voltage to DGND ..............................   0.3V to VDD + 0.3V
Lead Temperature (soldering, 10s) .............................................. +300°C
Power Dissipation (any package) ................................................. 500mW


Description

The ADS1254 is a precision, wide dynamic range, deltasigma, Analog-to-Digital (A/D) converter with 24-bit resolution. The delta-sigma architecture is used for wide dynamic range and to ensure 24 bits of no missing codes performance. An effective resolution of 19 bits (1.8ppm of rms noise) is achieved for conversion rates up to 20kHz.

The ADS1254 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, two-wire synchronous serial interface for low-cost isolation.

The ADS1254 is a multi-channel converter and is offered in an SSOP-20 package.




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