ADS7142-Q1 是 12 位 140kSPS 逐次逼近型寄存器 (SAR) 模数转换器 (ADC),可以自主监测信号,同时更大限度地提高系统功率、可靠性和性能。该器件使用具有可编程高低警报阈值、迟滞和事件计数器的数字窗口比较器,实施每通道事件触发的中断。器件包含一个在 SAR ADC 前端的双通道模拟多路复用器,然后是一个用于转换和捕捉传感器数据的内部数据缓冲器。
ADS7142-Q1 提供 10 引脚 WSON 封装,可以实现功耗低至 900nW。该器件体积小巧,功耗低,非常适合空间受限型应用。
| Resolution (Bits) | 12 |
| Sample rate (max) (ksps) | 140 |
| Number of input channels | 2 |
| Interface type | I2C |
| Architecture | SAR |
| Input type | Pseudo-Differential, Single-ended |
| Multichannel configuration | Multiplexed |
| Rating | Automotive |
| TI functional safety category | Functional Safety-Capable |
| Reference mode | Supply |
| Input voltage range (max) (V) | 3.6 |
| Input voltage range (min) (V) | 0 |
| Features | Comparator, Oscillator, Small Size |
| Operating temperature range (°C) | -40 to 125 |
| Power consumption (typ) (mW) | 0.0009 |
| Analog supply (min) (V) | 1.65 |
| Analog supply voltage (max) (V) | 3.6 |
| SNR (dB) | 71.5 |
| Digital supply (min) (V) | 1.65 |
| Digital supply (max) (V) | 3.6 |
| WSON (DQC) | 10 | 6 mm² 3 x 2 |