TDC1000PW datasheet(1/60 Pages) TI1

No de pièce	TDC1000PW

Description	TDC1000 Ultrasonic Sensing Analog Front End (AFE) for Level Sensing, Flow Sensing, Concentration Sensing, and Proximity Sensing Applications

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TDC1000, TDC1000-Q1

SNAS648B – OCTOBER 2014 – REVISED AUGUST 2015

TDC1000 Ultrasonic Sensing Analog Front End (AFE) for Level Sensing, Flow Sensing,

Concentration Sensing, and Proximity Sensing Applications

1 Features

3 Description

The TDC1000 is a fully integrated analog front-end

1

•

Automotive AEC-Q100 (TDC1000-Q1)

(AFE) for ultrasonic sensing measurements of level,

•

Measurement Range: Up to 8 ms

fluid identification/concentration, flow, and proximity/

•

Operating Current: 1.8 µA (2 SPS)

distance

applications

common

in

automotive,

industrial, medical, and consumer markets. When

•

Transmitter Channels TX1/TX2:

paired with an MSP430/C2000 MCU, power, wireless,

–

Supports Single or Dual-Transducer

and source code, TI provides the complete ultrasonic

Application

sensing solution.

–

Programmable Excitation: 31.25 kHz to 4 MHz,

TI's

Ultrasonic

AFE

offers

programmability

and

Up to 31 Pulses

flexibility

to

accommodate

a

wide-range

of

•

Receiver Channels RX1/RX2:

applications and end equipment. The TDC1000 can

be configured for multiple transmit pulses and

–

STOP Cycle-to-Cycle Jitter: 50 psRMS

frequencies, gain, and signal thresholds for use with

–

Low-Noise and Programmable Gain Amplifiers

a wide-range of transducer frequencies (31.25kHz to

–

Access to Signal Chain for External Filter

4MHz) and Q-factors. Similarly, the programmability

Design

of the receive path allows ultrasonic waves to be

detected over a wider range of distances/tank sizes

–

Programmable Threshold Comparator for Echo

and through various mediums.

Qualification

–

Automatic Channel Swapping for Differential

Selecting different modes of operation, the TDC1000

Time-of-Flight (TOF) Measurement

can

be

optimized

for

low

power

consumption,

making it ideal for battery powered flow meters,

–

Programmable Low Power Mode for Long TOF

level

instrumentation,

and

distance/proximity

Measurements

measurements.

The

low

noise

amplifiers

and

•

Temperature Measurement

comparators provide extremely low jitter, enabling

–

Interface to Two PT1000/500 RTDs

picosecond resolution and accuracy for zero and low

flow measurements.

–

RTD-to-RTD Matching Accuracy 0.02°CRMS

•

Operating Temperature Range: -40°C to 125°C

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

2 Applications

TDC1000

TSSOP (28) PW

9.70 mm × 4.40 mm

•

Measurements through tanks of varying materials:

TDC1000-Q1

TSSOP (28) PW

9.70 mm × 4.40 mm

–

Fluid Level

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

–

Fluid Identification / Concentration

•

Flow Metering: Water, Gas, Heat

•

Distance/Proximity Sensing

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

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