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Part Number: ADS1250
Description: The ADS1250 is a precision, wide dynamic range, delta-sigma, analog-to-digital converter with 20-bit r...
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ADS1250
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DataSheet
General Description
ADS1250 General Description
The ADS1250 is a precision, wide dynamic range, delta-sigma, analog-to-digital converter with 20-bit resolution operating from a single +5V supply. The delta-sigma architecture is used for wide dynamic range and to guarantee 20 bits of no missing code performance. An effective resolution of 18 bits (2.8ppm of rms noise) is achieved for conversion rates up to 25kHz. The dynamic range of the converter is further increased by providing a low-noise Programmable Gain Amplifier (PGA) with gain stages of 1, 2, 4, or 8 for low level input signals.
The ADS1250 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. The converter includes a flexible synchronous serial interface and offers a three-wire control mode for low-cost isolation.
The ADS1250 is a single-channel converter and is offered in an SOL-16 package.
ADS1250 Maximum Ratings
Analog Input: Current ................................................ ±100mA, Momentary
±10mA, Continuous
Voltage ....................................... AGND 0.3V to VS + 0.3V
VS to VD ................................................................................. 0.3V to 6V
VS to AGND ............................................................................ 0.3V to 6V
VD to DGND ............................................................................ 0.3V to 6V
AGND to DGND ................................................................................ ±0.3V
VREF Voltage to AGND ................................................. 0.3V to VS + 0.3V
Digital Input Voltage to DGND ..................................... 0.3V to VD + 0.3V
Digital Output Voltage to DGND .................................. 0.3V to VD + 0.3V
Lead Temperature (soldering, 10s) .............................................. +300°C
Power Dissipation (any package) ..................................................500mW
±10mA, Continuous
Voltage ....................................... AGND 0.3V to VS + 0.3V
VS to VD ................................................................................. 0.3V to 6V
VS to AGND ............................................................................ 0.3V to 6V
VD to DGND ............................................................................ 0.3V to 6V
AGND to DGND ................................................................................ ±0.3V
VREF Voltage to AGND ................................................. 0.3V to VS + 0.3V
Digital Input Voltage to DGND ..................................... 0.3V to VD + 0.3V
Digital Output Voltage to DGND .................................. 0.3V to VD + 0.3V
Lead Temperature (soldering, 10s) .............................................. +300°C
Power Dissipation (any package) ..................................................500mW
ADS1250 Features
· 20 BITS NO MISSING CODES
·18 BITS EFFECTIVE RESOLUTION UP TO 25kHz DATA RATE
· LOW NOISE: 2.8ppm at PGA = 1
· DIFFERENTIAL INPUTS
· INL: 0.002% (MAX)
· PROGRAMMABLE FULL SCALE
· I/O CONTROLLED PGA: 1, 2, 4, 8
· EXTERNAL REFERENCE
·18 BITS EFFECTIVE RESOLUTION UP TO 25kHz DATA RATE
· LOW NOISE: 2.8ppm at PGA = 1
· DIFFERENTIAL INPUTS
· INL: 0.002% (MAX)
· PROGRAMMABLE FULL SCALE
· I/O CONTROLLED PGA: 1, 2, 4, 8
· EXTERNAL REFERENCE
ADS1250 Typical Application
· CARDIAC DIAGNOSTICS
·DIRECT THERMOCOUPLE INTERFACE
· BLOOD ANALYSIS
· INFRARED PYROMETER
· LIQUID/GAS CHROMATOGRAPHY
· PRECISION PROCESS CONTROL
·DIRECT THERMOCOUPLE INTERFACE
· BLOOD ANALYSIS
· INFRARED PYROMETER
· LIQUID/GAS CHROMATOGRAPHY
· PRECISION PROCESS CONTROL
ADS1250 Connection Diagram
ADS1250
PDF/DataSheet Download
- Datasheet: ADS1250
- File Size: 201012 KB
- Manufacturer: BURR-BROWN [Burr-Brown Corporation]
- Click here to Download
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