TDC1011 AFE Datasheet

TDC1011 Datasheet PDF, Equivalent


Part Number

TDC1011

Description

Single Channel Ultrasonic Sensing AFE

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TDC1011
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TDC1011
SNAS662 – JULY 2015
TDC1011 Single Channel Ultrasonic Sensing Analog Front End (AFE) for Level Sensing,
Concentration Sensing Applications
1 Features
1 Measurement Range: Up to 8 ms
• Operating Current: 1.8 µA (2 SPS)
• Transmitter Channel TX
– Supports Single Transducer Applications
– Programmable Excitation: 31.25 kHz to 4 MHz,
Up to 31 Pulses
• Receiver Channel RX
– STOP Cycle-to-Cycle Jitter: 50 psRMS
– Low-Noise and Programmable Gain Amplifiers
– Access to Signal Chain for External Filter
Design
– Programmable Threshold Comparator for Echo
Qualification
– Programmable Low Power Mode for Long TOF
Measurements
• Temperature Measurement
– Interface to Two PT1000/500 RTDs
– RTD-to-RTD Matching Accuracy 0.02°CRMS
• Operating Temperature Range: -40°C to 125°C
2 Applications
• Measurements Through Tanks of Varying
Materials:
– Fluid Level
– Fluid Identification / Concentration
3 Description
The TDC1011 is a fully integrated analog front-end
(AFE) for ultrasonic sensing measurements of liquid
level, fluid identification/concentration, and proximity/
distance applications common in automotive,
industrial, medical, and consumer markets. When
paired with an MSP430/C2000 MCU, power, wireless,
and source code, TI provides the complete ultrasonic
sensing solution.
TI's Ultrasonic AFE offers programmability and
flexibility to accommodate a wide-range of
applications and end equipment. The TDC1011 can
be configured for multiple transmit pulses and
frequencies, gain, and signal thresholds for use with
a wide-range of transducer frequencies (31.25kHz to
4MHz) and Q-factors. Similarly, the programmability
of the receive path allows ultrasonic waves to be
detected over a wider range of distances/tank sizes
and through various mediums.
Selecting different modes of operation, the TDC1011
can be optimized for low power consumption, making
it ideal for battery powered applications. The low
noise amplifiers and comparators provide extremely
low jitter, enabling picosecond resolution and
accuracy.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TDC1011
TSSOP (PW-28)
9.70 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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.

TDC1011
TDC1011
SNAS662 – JULY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Timing Requirements ................................................ 7
6.7 Switching Characteristics .......................................... 7
6.8 Typical Characteristics .............................................. 8
7 Parameter Measurement Information ................ 10
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 12
8.4 Device Function Description ................................... 19
8.5 Programming .......................................................... 28
8.6 Register Maps ......................................................... 30
9 Application and Implementation ........................ 36
9.1 Application Information............................................ 36
9.2 Typical Applications ................................................ 36
10 Power Supply Recommendations ..................... 41
11 Layout................................................................... 42
11.1 Layout Guidelines ................................................. 42
11.2 Layout Example .................................................... 42
12 Device and Documentation Support ................. 43
12.1 Device Support...................................................... 43
12.2 Community Resources.......................................... 43
12.3 Trademarks ........................................................... 43
12.4 Electrostatic Discharge Caution ............................ 43
12.5 Glossary ................................................................ 43
13 Mechanical, Packaging, and Orderable
Information ........................................................... 43
4 Revision History
DATE
July 2015
REVISION
*
NOTES
Initial release.
2 Submit Documentation Feedback
Product Folder Links: TDC1011
Copyright © 2015, Texas Instruments Incorporated


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TDC1011 SN AS662 – JULY 2015 TDC1011 Single Chan nel Ultrasonic Sensing Analog Front End (AFE) for Level Sensing, Concentration Sensing Applications 1 Features •1 Measurement Range: Up to 8 ms • Opera ting Current: 1.8 µA (2 SPS) • Trans mitter Channel TX – Supports Single T ransducer Applications – Programmable Excitation: 31.25 kHz to 4 MHz, Up to 31 Pulses • Receiver Channel RX – S TOP Cycle-to-Cycle Jitter: 50 psRMS – Low-Noise and Programmable Gain Amplif iers – Access to Signal Chain for Ext ernal Filter Design – Programmable Th reshold Comparator for Echo Qualificati on – Programmable Low Power Mode for Long TOF Measurements • Temperature M easurement – Interface to Two PT1000/ 500 RTDs – RTD-to-RTD Matching Accura cy 0.02°CRMS • Operating Temperature Range: -40°C to 125°C 2 Applications • Measurements Through Tanks of Varying Materials: – Fluid Level – Fluid Identification / Concentr.
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