TDC1011_15 Datasheet, PDF (1/49 Pages) Texas Instruments – TDC1011 Single Channel Ultrasonic Sensing Analog Front End (AFE) for Level Sensing,Concentration Sensing Applications

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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 ps_RMS
– 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°C_RMS
• 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.