Product Summary

The ADS1211U is a precision, wide dynamic range, delta-sigma analog-to-digital converter with 24-bit resolution operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low level voltage signals. The ADS1211U is designed for high resolution measurement applications in smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. Applications of the ADS1211Uinclude: industrial process control, instrumentation, blood analysis, smart transmitters, portable instruments, weigh scales and pressure transducers.

Parametrics

ADS1211U absolute maximum ratings: (1) Analog Input Current: ±100mA, Momentary, ±10mA, Continuous; (2) Voltage: AGND -0.3V to AVDD +0.3V; (3) AVDD to DVDD: 0.3V to 6V; (4) AVDD to AGND: –0.3V to 6V; (5) DVDD to DGND: -0.3V to 6V; (6) AGND to DGND: ±0.3V; (7) REFIN Voltage to AGND: -0.3V to AVDD +0.3V; (8) Digital Input Voltage to DGND: -0.3V to DVDD +0.3V; (9) Digital Output Voltage to DGND: -0.3V to DVDD +0.3V; (10) Lead Temperature (soldering, 10s) : +300°C; (11) Power Dissipation (Any package) : 500mW.

Features

ADS1211U features: (1) delta-sigma A/D converter; (2) 23 bits effective resolution at 10Hz and 20 bits at 1000Hz; (3) differential inputs; (4) programmble gain amplifier; (5) flexiable SPI compatible SSI interface with 2-wire mode; (6) programmble cut-off frequency up to 15.6kHz; (7) internal/external reference; (8) on chip self-calibration.

Diagrams

ADS1211U Circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ADS1211U
ADS1211U

Texas Instruments

ADC (A/D Converters) 24-Bit Anlg-to-Dig Converter

Data Sheet

0-1: $13.96
1-10: $13.13
10-25: $12.30
25-50: $12.07
ADS1211U/1K
ADS1211U/1K

Texas Instruments

ADC (A/D Converters) 24-Bit Anlg-to-Dig Converter

Data Sheet

0-786: $9.08
786-1000: $8.91
ADS1211UG4
ADS1211UG4

Texas Instruments

ADC (A/D Converters) 24-Bit Anlg-to-Dig Converter

Data Sheet

0-1: $13.96
1-10: $13.13
10-25: $12.30
25-50: $12.07
ADS1211U/1KG4
ADS1211U/1KG4

Texas Instruments

ADC (A/D Converters) 24-Bit Anlg-to-Dig Converter

Data Sheet

0-786: $9.08
786-1000: $8.91