TDC1000QPWQ1

TDC1000-Q1是一款完全集成的模拟前端(AFE)，用于汽车、工业和消费市场中常见的液位、流体识别/浓度以及接近/距离应用的超声波传感测量。配合MSP430/C2000微处理器、电源、无线和源代码，TI提供完整的超声波传感解决方案。

TI S超声波AFE提供可编程性和灵活性，以适应广泛的应用和终端设备。TDC1000-Q1可以配置为多个发射脉冲和频率、增益和信号阈值，以便在大范围的传感器频率(31.25 kHz至4 MHz)和Q因数下使用。同样，接收路径的可编程性允许在更大的距离/水箱尺寸范围内通过各种介质检测超声波。

选择不同的操作模式，TDC1000-Q1可以针对电池供电的流量计、液位仪表和距离/接近测量的低功耗进行优化。低噪声放大器和比较器提供极低的抖动，实现零流量和低流量测量的皮秒分辨率和精度。

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T_A
Measurement range: up to 8 ms
Operating current: 1.8 µA (2 SPS)
Transmitter channels TX1/TX2:
- Supports single or dual-transducer application
- Programmable excitation: 31.25 kHz to 4 MHz, up to 31 pulses
Receiver channels RX1/RX2:
- STOP cycle-to-cycle jitter: 50 ps_RMS
- Low-noise and programmable gain amplifiers
- Access to signal chain for external filter design
- Programmable threshold comparator for echo qualification
- Automatic channel swapping for differential Time-of-Flight (TOF) measurement
- Programmable low power mode for long TOF measurements
Temperature measurement
- Interface to two PT1000/500 RTDs
- RTD-to-RTD matching accuracy 0.02°C_RMS
Operating temperature range: –40°C to 125°C