TIDA-00202
Interface to a HIPERFACE Position Encoder Reference Design
TIDA-00202
Overview
The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal channel, two options are provided to offer flexibility for connection to processors with and without embedded ADC or redundancy by using both options simultaneously. The first option features a fully differential dual 12-bit ADC with SPI output, the second option features a dual differential input with single-ended analog output (0-3.3V). The design features an industrial compliant 24V input with wide range from 16V to 36V. The power supply for the encoder can be configured from 7 to 12V (default 11V) and offers short-circuit protection. A 3.3V I/O connector with analog and logic signals provides an easy interface to a host processor with HIPERFACE master IP core. For quick evaluation an example firmware is available for a C2000™ Piccolo MCU to calculate the absolute angle position and display it through virtual COM port.
Features
- EMC Compliant Interface to HIPERFACE Position Encoders with Digital Bidirectional Parameter Channel up to 38400 Baud and Analog Sin/Cos Channel with at least 150kHz Bandwidth.
- 3.3V Supply Half-Duplex RS485 Transceiver with 12kV IEC-ESD and 4kV IEC-EFT.
- Dual Signal Path Option for Sine and Cosine Signals with either Dual 12-bit ADC with SPI Output or Dual Analog Output (0-3.3V) to Offer Flexibility for Connection to MCU with and without Embedded ADC.
- Host Processor Interface (3.3V I/O) for Easy Connection to MCU like C2000™ for the HIPERFACE Master.
- Example Firmware on C2000™ Piccolo MCU to Calculate and Display the Interpolated Absolute Angle from HIPERFACE Position Encoders.
- Designed to Meet EMC Immunity for ESD, Fast Transient Burst, and Surge with Levels according to IEC61800-3.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUB64A.PDF (2851 K)
Reference design overview and verified performance test data
TIDRJH1.PDF (1279 K)
Detailed schematic diagram for design layout and components
TIDRJH2.PDF (38 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRJH3.PDF (356 K)
Detailed overview of design layout for component placement
TIDRJH5.ZIP (5817 K)
Files used for 3D models or 2D drawings of IC components
TIDCBL4.ZIP (2025 K)
Design file that contains information on physical board layer of design PCB
TIDRJH4.PDF (4667 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
RS-485 & RS-422 transceivers
SN65HVD72 — 3.3-V half-duplex RS-485 with IEC ESD, 250 kbps
Data sheetBuck converters (integrated switch)
TPS5401 — 3.5V to 42V Input, 0.5 A Step Down Converter
Data sheetBuck converters (integrated switch)
TPS560200 — 17V Input, 500mA Synchronous Step-Down Regulator in SOT-23 with Advanced Eco-Mode™
Data sheetComparators
TLV3202 — 5.5-V, high-speed, dual push-pull comparator
Data sheetESD & surge protection ICs
TPD2E007 — Dual 15-pF, ±13-V, ±8-kV ESD protection diode for AC Signal Data Interfaces
Data sheetFully differential amplifiers
THS4531A — Ultra Low Power, RRO, Fully-Differential Amplifier
Data sheetHigh-speed op amps (GBW ≥ 50 MHz)
OPA2365 — 2.2V, 50MHz, Low-Noise Single-Supply Rail-to-Rail Operational Amplifiers
Data sheetLinear & low-dropout (LDO) regulators
LP2954 — 250-mA, 30-V, low-dropout voltage regulator
Data sheetLinear & low-dropout (LDO) regulators
TPS717 — 150-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable
Data sheetLinear & low-dropout (LDO) regulators
TPS799 — 200-mA, low-IQ, low-dropout voltage regulator with low-noise & enable
Data sheetPrecision ADCs (<=10MSPS)
ADS7254 — 12 Bit, 1 MSPS, Dual, Simultaneous Sampling Differential SAR ADC
Data sheetShunt voltage references
TLV431 — 1.5% accuracy, low-voltage, adjustable precision shunt regulator
Data sheetStart development
Technical documentation
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 2
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Interface to a HIPERFACE Position Encoder Design Guide (Rev. A) | Mar. 03, 2016 | |
| More literature | TIDA-00202 Firmware | Dec. 11, 2015 |
Related design resources
Hardware development
EVALUATION BOARD
Reference designs
REFERENCE DESIGN
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.