| ADS1218 | |
| Resolution(Bits) | 24 |
| Sample Rate (max) | 780SPS |
| Architecture | Delta-Sigma |
| Power Consumption(Typ)(mW) | 0.8 |
| DNL(Max)(+/-LSB) | 1 |
| INL(Max)(+/-LSB) | 0.0015% |
| No Missing Codes(Bits) | 24 |
| ENOB(Bits) | 22 |
| No. of Supplies | 2 |
| Analog Voltage AV/DD(Min)(V) | 2.7 |
| Analog Voltage AV/DD(Max)(V) | 5.25 |
| Logic Voltage DV/DD(Min)(V) | 2.7 |
| Logic Voltage DV/DD(Max)(V) | 5.25 |
| Input Configuration Range | Vref/PGA (1-128) |
| Reference Mode | Int |
| Rating | Catalog |
| Pin/Package | 48TQFP |
| # Input Channels | 8 |
The ADS1218 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution and Flash memory operating from 2.7V to 5.25V supplies. The delta-sigma, A/D converter provides up to 24 bits of no missing code performance and effective resolution of 22 bits.
The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog (D/A) converter provides an offset correction with a range of 50% of the FSR (Full-Scale Range).
The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128.
| 器件 | 状态 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| ADS1218Y/250 | ACTIVE | 6.90 | 1ku | TQFP(PFB) | 48 | 250 | SMALL T&R | ADS1218Y |
| ADS1218Y/250G4 | ACTIVE | 6.90 | 1ku | TQFP(PFB) | 48 | 250 | SMALL T&R | ADS1218Y |
| 名称 | 型号 | 公司 | 工具/软件类型 |
| 针对 Code Composer Studio 的 DCPFREETOOL 软件插件 | DCPFREETOOL | Texas Instruments | 实用程序/插件 |
| 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 |
| ADS1218Y/250 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1218Y/250 | ADS1218Y/250 |
| ADS1218Y/250G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | ADS1218Y/250G4 | ADS1218Y/250G4 |