(China (Mainland))
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
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 ADS1222 |
Other |
|
Data Sheet |
Negotiable |
|
||||||||||||
|
ADS1222IPW |
Other |
|
Data Sheet |
Negotiable |
|
||||||||||||
 |
ADS1222IPWR |
Texas Instruments |
ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer |
Data Sheet |
|
|
||||||||||||
|
ADS1222IPWTG4 |
Texas Instruments |
ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer |
Data Sheet |
|
|
||||||||||||
|
ADS1222IPWT |
Texas Instruments |
ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer |
Data Sheet |
|
|
||||||||||||
|
ADS1222IPWRG4 |
Texas Instruments |
ADC (A/D Converters) 24-Bit Conv w/2-Ch Diff Input Mltplxer |
Data Sheet |
|
|
||||||||||||
