Overview
The TDC1000QPWQ1 is a fully integrated analog front-end (AFE) designed by Texas Instruments for ultrasonic sensing measurements. This device is optimized for various applications including level sensing, fluid identification/concentration, flow sensing, and proximity/distance measurements. It is particularly suited for automotive, industrial, and consumer markets. The TDC1000QPWQ1 stands out for its exceptional performance, low power consumption, and high integration, making it ideal for battery-powered devices such as flow meters, level instrumentation systems, and distance measurement applications. When paired with an MSP430 or C2000 MCU, it provides a complete ultrasonic sensing solution with advanced power management and signal processing capabilities.
Key Specifications
| Type | Analog front-end (AFE) |
|---|---|
| Gain (min) (dB) | 20 |
| Gain (max) (dB) | 41 |
| Number of input channels | 2 |
| Supply voltage (min) (V) | 2.7 |
| Supply voltage (max) (V) | 5.5 |
| Operating temperature range (°C) | -40 to 125 |
| Interface type | SPI |
| Rating | Automotive AEC-Q100 |
| Package/Case | 28-Pin TSSOP |
| Operating current | 1.8 µA (2 SPS) |
| Measurement range | Up to 8 ms |
| Transmitter channels | TX1/TX2: Supports single or dual-transducer application |
| Programmable excitation | 31.25 kHz to 4 MHz, up to 31 pulses |
Key Features
- Designed for automotive ultrasonic parking assist applications and other ultrasonic sensing needs.
- Features adjustable voltage regulators, temperature sensors, and output stages.
- Low power consumption and high integration for easy system design.
- Programmable gain amplifier for optimal signal processing.
- Narrowband pulse receiver for effective noise rejection.
- Supports single or dual-transducer applications with programmable excitation frequencies (31.25 kHz to 4 MHz).
- Low-noise and programmable gain amplifiers, along with auto-zeroed comparators for echo qualification and STOP pulse generation.
- Programmable low power mode for long Time-of-Flight (TOF) measurements.
- Temperature measurement with interface to two PT1000/500 RTDs and high RTD-to-RTD matching accuracy).
Applications
- Automotive ultrasonic parking assist systems).
- Level sensing in industrial and consumer applications).
- Flow sensing and fluid identification/concentration measurements).
- Proximity and distance measurements in various environments).
- Battery-powered flow meters and level instrumentation systems).
Q & A
- What is the TDC1000QPWQ1 used for?
The TDC1000QPWQ1 is used for ultrasonic sensing measurements in applications such as level sensing, fluid identification/concentration, flow sensing, and proximity/distance measurements).
- What are the key features of the TDC1000QPWQ1?
Key features include adjustable voltage regulators, temperature sensors, programmable gain amplifiers, narrowband pulse receivers, and low power consumption).
- What is the operating temperature range of the TDC1000QPWQ1?
The operating temperature range is -40°C to 125°C).
- What interface does the TDC1000QPWQ1 use?
The TDC1000QPWQ1 uses an SPI interface).
- Is the TDC1000QPWQ1 automotive qualified?
Yes, the TDC1000QPWQ1 is AEC-Q100 qualified for automotive applications).
- What is the measurement range of the TDC1000QPWQ1?
The measurement range is up to 8 ms).
- How many transmitter channels does the TDC1000QPWQ1 support?
The TDC1000QPWQ1 supports two transmitter channels (TX1/TX2) and can be used in single or dual-transducer applications).
- What is the power consumption of the TDC1000QPWQ1?
The operating current is 1.8 µA at 2 samples per second (SPS)).
- Can the TDC1000QPWQ1 be used in battery-powered devices?
Yes, it is optimized for low power consumption, making it suitable for battery-powered flow meters, level instrumentation, and distance/proximity measurements).
- What kind of signal processing does the TDC1000QPWQ1 offer?
The device includes low-noise amplifiers, programmable gain amplifiers, and auto-zeroed comparators for precise signal processing).
