TDC7200

ACTIVO

Convertidor de tiempo a digital para aplicaciones de tiempo de vuelo (TOF) para LIDAR y ultrasónico

Detalles del producto

Type Time-to-digital converter Number of input channels 1 Supply voltage (min) (V) 2 Supply voltage (max) (V) 3.6 Operating temperature range (°C) -40 to 85 Interface type SPI Rating Catalog
Type Time-to-digital converter Number of input channels 1 Supply voltage (min) (V) 2 Supply voltage (max) (V) 3.6 Operating temperature range (°C) -40 to 85 Interface type SPI Rating Catalog
TSSOP (PW) 14 32 mm² 5 x 6.4
  • Resolution: 55 ps
  • Standard Deviation: 35 ps
  • Measurement Range:
    • Mode 1: 12 ns to 500 ns
    • Mode 2: 250 ns to 8 ms
  • Low Power Consumption: 0.5 µA (2 SPS)
  • Supports up to 5 STOP Signals
  • Autonomous Multi-Cycle Averaging Mode for Low
    Power Consumption
  • Supply Voltage: 2 V to 3.6 V
  • Operating Temperature –40°C to 85°C
  • SPI Host Interface for Configuration and Register
    Access
  • Resolution: 55 ps
  • Standard Deviation: 35 ps
  • Measurement Range:
    • Mode 1: 12 ns to 500 ns
    • Mode 2: 250 ns to 8 ms
  • Low Power Consumption: 0.5 µA (2 SPS)
  • Supports up to 5 STOP Signals
  • Autonomous Multi-Cycle Averaging Mode for Low
    Power Consumption
  • Supply Voltage: 2 V to 3.6 V
  • Operating Temperature –40°C to 85°C
  • SPI Host Interface for Configuration and Register
    Access

The TDC7200 is a Time-to-Digital Converter (TDC) for ultrasonic sensing measurements such as water flow meter, gas flow meter, and heat flow meter. When paired with the TDC1000 (ultrasonic analog-front-end), the TDC7200 can be a part of a complete TI ultrasonic sensing solution that includes the MSP430, power, wireless, and source code.

The Time to Digital Converter (TDC) performs the function of a stopwatch and measures the elapsed time (time-of-flight or TOF) between a START pulse and up to five STOP pulses. The ability to measure from START to multiple STOPs gives users the flexibility to select which STOP pulse yields the best echo performance.

The device has an internal self-calibrated time base which compensates for drift over time and temperature. Self-calibration enables time-to-digital conversion accuracy in the order of picoseconds. This accuracy makes the TDC7200 ideal for flow meter applications, where zero and low flow measurements require high accuracy.

When placed in the Autonomous Multi-Cycle Averaging Mode, the TDC7200 can be optimized for low system power consumption, making it ideal for battery powered flow meters. In this mode, the host can go to sleep to save power, and it can wake up when interrupted by the TDC upon completion of the measurement sequence.

The TDC7200 is a Time-to-Digital Converter (TDC) for ultrasonic sensing measurements such as water flow meter, gas flow meter, and heat flow meter. When paired with the TDC1000 (ultrasonic analog-front-end), the TDC7200 can be a part of a complete TI ultrasonic sensing solution that includes the MSP430, power, wireless, and source code.

The Time to Digital Converter (TDC) performs the function of a stopwatch and measures the elapsed time (time-of-flight or TOF) between a START pulse and up to five STOP pulses. The ability to measure from START to multiple STOPs gives users the flexibility to select which STOP pulse yields the best echo performance.

The device has an internal self-calibrated time base which compensates for drift over time and temperature. Self-calibration enables time-to-digital conversion accuracy in the order of picoseconds. This accuracy makes the TDC7200 ideal for flow meter applications, where zero and low flow measurements require high accuracy.

When placed in the Autonomous Multi-Cycle Averaging Mode, the TDC7200 can be optimized for low system power consumption, making it ideal for battery powered flow meters. In this mode, the host can go to sleep to save power, and it can wake up when interrupted by the TDC upon completion of the measurement sequence.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TDC7200 Time-to-Digital Converter for Time-of-Flight Applications in LIDAR, Magnetostrictive and Flow Meters datasheet (Rev. D) PDF | HTML 07 mar 2016
Application note Interleaved Short Time Measurements Using TDC7200 30 oct 2015
Technical article Time-of-flight measurements using high-performance time-to-digital converters PDF | HTML 31 jul 2015
Technical article Why are flow meter manufacturers switching from mechanical to ultrasonic? PDF | HTML 11 jun 2015
Application note Measuring an RTD Sensor with the TDC1000 and TDC7200 for Ultrasonic Sensing 09 abr 2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TDC7200EVM — TDC7200 Módulo de evaluación

The TDC7200EVM is an evaluation module that allows users to evaluate the operation and performance of the TDC7200 Time-to-Digital Converter. One example is calculating time of flight – whether it be for LIDAR or ultrasonic applications. The TDC7200EVM has two SMA connectors for the START and (...)

Guía del usuario: PDF
Modelo de simulación

TDC7200 IBIS Model

SNAM176.ZIP (37 KB) - IBIS Model
Diseños de referencia

TIDM-ULTRASONIC-FLOW-TDC — Diseño de medidor de flujo de agua ultrasónico con tiempo para conversión digital

The TIDM-ULTRASONIC-FLOW-TDC is a reference design for an ultrasonic flow meter (water, gas or heat meter) with LCD built using a Time-to-Digital converter and an ultra-low power MCU. Solution includes optimized leakage detection, low power consumption, and a small form factor that are (...)
Design guide: PDF
Esquema: PDF
Diseños de referencia

TIDA-00663 — Diseño de referencia de tiempo de vuelo pulsado LIDAR

Los sistemas de detección y medición por luz (LiDAR) utilizan el tiempo que tarda la luz en ir y volver cuando se la dirige a un objeto para medir la distancia a este objetivo.  El diseño de referencia TIDA-00663 muestra cómo diseñar el back-end de la medición de tiempo para LiDAR en función del (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 14 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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