Texas Instruments TDC1000 集成模拟前端 (AFE)
德州仪器 TDC1000 集成模拟前端 (AFE)被设计用于液位超声波感测、流体识别/浓度超声波感测、流量超声波感测和接近/远距离传感应用，面向汽车、工业、医疗和消费者市场。与 MSP430/C2000 MCU、电源、无线网络和源代码配合使用时，TI 提供了完整的超声波感测解决方案。TI 超声波模拟前端的可编程性和灵活性使其能够适应各种应用和终端设备。TDC1000 可针对多种发射脉冲和频率、增益和信号阈值进行配置，以便在宽幅传感器频率（31.25kHz 至 4MHz）和品质因数下使用。同样地，接收路径的可编程性允许在更大的距离/储槽尺寸范围内以及通过各种介质进行超声波检测。
特性
- Automotive AEC-Q100 (TDC1000-Q1)
- Measurement range up to 8ms
- 1.8µA (2 SPS) Operating current
- Transmitter channels TX1/TX2:
- Supports single or dual-transducer application
- 31.25kHz to 4MHz, up to 31 pulses programmable excitation
- Receiver channels RX1/RX2:
- 50psRMS STOP cycle-to-cycle jitter
- Low-noise and programmable gain amplifiers
- Access to signal chain for external filter design
- Programmable threshold comparator for echoqualification
- 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°CRMS
- -40°C to 125°C Operating temperature range
应用
- Measurements through tanks of varying materials
- Fluid level
- Fluid identification/concentration
- Water, gas, heat flow metering
- Distance/proximity sensing
Functional Block Diagram
Additional Resources
Evaluation Module
Texas Instruments TDC1000-C2000EVM Evaluation Module (EVM)
Evaluate the operation and performance of the TDC1000 ultrasonic analog-front-end with C2000.
发布日期: 2015-02-20
| 更新日期: 2022-03-11