(China (Mainland))
Product Summary
The ADS1250U 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 25 kHz. 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 ADS1250U is a single-channel converter and is offered in an SOL-16 package. The applications of the ADS1250U include cardiac diagnostics, direct thermocouple interface, blood analysis, infrared pyrometer, liquid/gas chromatography, precision process control.
Parametrics
ADS1250U absolute maximum ratings:(1)Analog Input: Current: ±100mA, Momentary, ±10mA, Continuous; (2)Analog Input Voltage: AGND –0.3V to VS + 0.3V; (3)VS to VD:–0.3V to 6V; (4)VS to AGND:–0.3V to 6V; (5)VD to DGND:–0.3V to 6V; (6)AGND to DGND: ±0.3V; (7)VREF Voltage to AGND:–0.3V to VS + 0.3V; (8)Digital Input Voltage to DGND:–0.3V to VD + 0.3V; (9)Digital Output Voltage to DGND:–0.3V to VD + 0.3V; (10)Lead Temperature (soldering, 10s): +300℃; (11) Power Dissipation (any package): 500mW.
Features
ADS1250U features: (1)20 bits no missing codes; (2)18 bits effective resolution up to 25kHz data rate; (3)low noise: 2.8ppm at PGA = 1; (4)differential inputs; (5)INL: 0.002% (MAX); (6)programmable full scale; (7)I/O controlled PGA: 1, 2, 4, 8; (8)external reference.
Diagrams
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 ADS1250U |
Texas Instruments |
ADC (A/D Converters) SpeedPlus 20-Bit Data Acq System |
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ADS1250U/1K |
Texas Instruments |
ADC (A/D Converters) SpeedPlus 20-Bit Data Acq System |
Data Sheet |
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ADS1250UG4 |
Texas Instruments |
ADC (A/D Converters) SpeedPlus 20-Bit Data Acq System |
Data Sheet |
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ADS1250U/1KG4 |
Texas Instruments |
ADC (A/D Converters) SpeedPlus 20-Bit Data Acq System |
Data Sheet |
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