| ADS1222 | ADS1224 | |
| Resolution(Bits) | 24 | 24 |
| Sample Rate (max) | 240SPS | 240SPS |
| Architecture | Delta-Sigma | Delta-Sigma |
| Power Consumption(Typ)(mW) | 1.35 | 1.35 |
| DNL(Max)(+/-LSB) | 1 | 1 |
| INL(Max)(+/-LSB) | 0.0003% | 0.0003% |
| No Missing Codes(Bits) | 24 | 24 |
| ENOB(Bits) | 20 | 20 |
| No. of Supplies | 2 | 2 |
| Analog Voltage AV/DD(Min)(V) | 2.7 | 2.7 |
| Analog Voltage AV/DD(Max)(V) | 5.5 | 5.5 |
| Logic Voltage DV/DD(Min)(V) | 2.7 | 2.7 |
| Logic Voltage DV/DD(Max)(V) | 5.5 | 5.5 |
| Input Configuration Range | 2Vref | 2Vref |
| Reference Mode | Ext | Ext |
| Rating | Catalog | Catalog |
| Pin/Package | 14TSSOP | 20TSSOP |
| # Input Channels | 2 | 4 |
| Operating Temp Range(Celsius) | -40 to 85 | -40 to 85 |
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 delta-sigma (ΔΣ) modulator and digital filter form the basis of the A/D converter. The analog modulator has a ±5V differential input range. An input multiplexer (mux) is used to select between two separate differential input channels. A buffer can be selected to increase the input impedance of the measurement.
A simple, 2-wire serial interface provides all the necessary control. Data retrieval, self-calibration, and Standby mode are handled with a few simple waveforms.
| 器件 | 状态 | 温度(oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| ADS1222IPWR | ACTIVE | -40 to 85 | 3.20 | 1ku | TSSOP (PW) | 14 | 2000 | LARGE T&R | ADS 1222 |
| ADS1222IPWRG4 | ACTIVE | -40 to 85 | 3.20 | 1ku | TSSOP (PW) | 14 | 2000 | LARGE T&R | ADS 1222 |
| ADS1222IPWT | ACTIVE | -40 to 85 | 3.50 | 1ku | TSSOP (PW) | 14 | 250 | SMALL T&R | ADS 1222 |
| ADS1222IPWTG4 | ACTIVE | -40 to 85 | 3.50 | 1ku | TSSOP (PW) | 14 | 250 | SMALL T&R | ADS 1222 |
| 名称 | 型号 | 公司 | 工具/软件类型 |
| 用于模数转换器的抗混淆计算工具 | ANTIALIASINGCALC | Texas Instruments | 计算实用程序 |
| 运算放大器至 ADC 电路拓扑计算器 | ADC-INPUT-CALC | Texas Instruments | 计算实用程序 |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| ADS1222IPWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1222IPWR | ADS1222IPWR |
| ADS1222IPWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1222IPWRG4 | ADS1222IPWRG4 |
| ADS1222IPWT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1222IPWT | ADS1222IPWT |
| ADS1222IPWTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1222IPWTG4 | ADS1222IPWTG4 |