Product Summary

The ADS1222 is a 2-channel, 24-bit, delta-sigma analog-to-digital (A/D) converter. It offers excellent performance and low power in a TSSOP-14 package. The ADS1222 is well-suited for demanding, high-resolution measurements, especially in portable systems and other space-saving and power-constrained applications.A simple, 2-wire serial interface provides all thenecessary control. Data retrieval, self-calibration, and Standby mode are handled with a few simple waveforms. The applications of the ADS1222 are Hand-Held Instrumentation, Portable Medical Equipment, Industrial Process Control, Weigh Scales.

Parametrics

ADS1222 absolute maximum ratings: (1)VDD to GND:-0.3V to +6V; (2)Input current: 100mA, momentary; (3)Input current: 10mA, continuous; (4)Analog input voltage to GND: -0.3V to VDD + 0.3V; (5)Digital input voltage to GND:-0.3V to VDD + 0.3V; (6)Maximum Junction Temperature:+150℃; (7)Operating Temperature Range:-55℃ to +125℃; (8)Storage Temperature Range:-60℃ to +150℃; (9)Lead Temperature (soldering, 10s):+300℃.

Features

ADS1222 features: (1)240SPS Data Rate with 4MHz Clock; (2)20-Bit Effective Resolution; (3)Input Multiplexer with Two Differential Channels; (4)Pin-Selectable, High-Impedance Input Buffer; (5)±5V Differential Input Range; (6)0.0003% INL (typ), 0.0015% INL (max); (7)Self-Calibrating; (8)Simple 2-Wire Serial Interface; (9)On-Chip Temperature Sensor; (10)Single Conversions with Standby Mode; (11)Low Current Consumption: 300μA; (12)Analog Supply: 2.7V to 5.5V.

Diagrams

ADS1222 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ADS1222
ADS1222

Other


Data Sheet

Negotiable 
ADS1222IPW
ADS1222IPW

Other


Data Sheet

Negotiable 
ADS1222IPWR
ADS1222IPWR

Texas Instruments

ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer

Data Sheet

0-1605: $1.99
1605-2000: $1.99
ADS1222IPWRG4
ADS1222IPWRG4

Texas Instruments

ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer

Data Sheet

0-1605: $1.99
1605-2000: $1.99
ADS1222IPWT
ADS1222IPWT

Texas Instruments

ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer

Data Sheet

0-1: $4.59
1-10: $4.12
10-25: $3.67
25-50: $3.46
ADS1222IPWTG4
ADS1222IPWTG4

Texas Instruments

ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer

Data Sheet

0-1: $4.59
1-10: $4.12
10-25: $3.67
25-50: $3.46