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Single & multiaxis servo drives

Servo drive position feedback

Products and reference designs
Block diagram

Servo drive position feedback

Block diagram

Overview

Our integrated circuits and reference designs help you create highly accurate and robust servo drive and position feedback designs. Our robust interface solutions for incremental and absolute encoders support all industry standards for drives like EnDAT2.2, BiSS and HIPERFACE DSL.

Design requirements

    Modern servo drive position feedback designs often require:

  • Robust and accurate rotor position feedback.
  • High data-rate, low-latency and robust interface solutions.
  • To meet and exceed IEC61800-3 EMC immunity.
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Block diagram

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Servo drive position feedback

24V 24V Board to Board Connection Board to Board Connection Connector to: Digital Hall, Resolver, Encoder Connector to:Digital Hall, Resolver, Encoder Config Jumper/DIP Config Jumper/DIP Indicator LEDs Indicator LEDs Non-Isolated DC/DC Power Supply Non-Isolated DC/DC Power Supply Supervisor Sequencer Supervisor Sequencer DC/DC DC/DC DC/DC DC/DC PMIC PMIC LDO LDO Input Power Protection Input Power Protection E-Fuse E-Fuse Load Switch Load Switch Digital Processing Digital Processing MCU MPU FPGA MCUMPUFPGA Board-to-Board Interface Board-to-Board Interface Interface Translator Interface Translator LVDS LVDS RS-485/RS-422 RS-485/RS-422 Output User Interface Output User Interface LED Driver (FET) LED Driver (FET) Input User Interface Input User Interface Level Translator Buffer Level Translator Buffer Service Interface Service Interface ISO RS485 ISO RS485 USB USB Digital Isolator Digital Isolator Configuration Interface Configuration Interface 24V 24V Isolated DC/DC Power Supply Isolated DC/DC Power Supply FET FET PWM Controller PWM Controller Memory Memory Bus Termination Bus Termination FLASH FLASH DDR DDR Service IF Protection Service IF Protection Protection Protection Board to Board Protection Board to Board Protection Protection Protection SIN/COS AFE Protection SIN/COS AFE Protection Protection Protection SIN/COS AFE SIN/COS AFE Amp Amp Amp Amp ADC ADC DAC DAC Ref Ref Comp Comp Encoder Interface Encoder Interface Mux Mux Level Translator Level Translator RS-485/RS-422 RS-485/RS-422 Encoder IF Protection Encoder IF Protection Protection Protection

Sine/cosine analog front end

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Converts SIN/COS differential inputs from resolver or SIN/COS encoder to digital outputs.

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Data converters (7)
Precision ADCs
  • ADS7056—14-bit 2.5-MSPS ultra-low-power ultra-small-size SAR ADC with SPI
    Data sheet: PDF | HTML
  • AMC1035—Precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output
    Data sheet: PDF | HTML
  • ADS7046—12-Bit, 3MSPS, Single-Ended Input, Small-Size Low-Power SAR ADC
    Data sheet: PDF | HTML
  • ADS7052—14-Bit, 1MSPS, Single-Ended Input, Small-Size Low-Power SAR ADC
    Data sheet: PDF | HTML
  • ADS9219—2-channel, 18-bit, 20 Msps/channel, with ADC driver and reference driver in 6mm x 6mm QFN
    Data sheet: PDF | HTML
  • ADS7263—14-bit 1MSPS 4x2/2x2 Simultaneous Sampling SAR ADC
    Data sheet: PDF | HTML
Precision DACs (≤10 MSPS)
  • DAC8562T—DAC8562T Dual,16-Bit,Low Power,Voltage-Output DACs with 2.5-V,4ppm/C, Internal Ref, and 5V TTL I/O
    Data sheet: PDF | HTML
Amplifiers (19)
Precision op amps (Vos<1mV)
  • LMP7709—Precision, CMOS Input, RRIO, Wide Supply Range Decompensated Quad Amplifier
    Data sheet: PDF | HTML
General-purpose op amps
  • OPA4310—Quad, 5.5-V, 3-MHz high-output-current (150 mA) fast-shutdown (1 μs) operational amplifier
    Data sheet: PDF | HTML
  • TLV9064—Quad, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
  • TL071H—Single, 40-V, 5-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation
    Data sheet: PDF | HTML
  • TLV9002—Dual, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
  • TLV9062—Dual, 5.5-V, 10-MHz operational amplifier
    Data sheet: PDF | HTML
  • TLV9054—Quad, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications
    Data sheet: PDF | HTML
Comparators
  • LM393LV—'1.65-V to 5.5-V, low-voltage dual commodity comparator
    Data sheet: PDF | HTML
  • TLV7031—Nanopower, small size comparator with push-pull output
    Data sheet: PDF | HTML
  • TLV3201—5.5-V, high-speed, single push-pull comparator
    Data sheet: PDF | HTML
  • LM2903—Dual differential comparator
    Data sheet: PDF | HTML
  • LM2901B—36-V, quad differential standard comparator
    Data sheet: PDF | HTML
  • TLV3602—2.5-ns, dual-channel high-speed rail-to-rail comparator with push-pull outputs
    Data sheet: PDF | HTML
Audio op amps
  • TL972—Dual, 12-V, 12-MHz operational amplifier
    Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)
  • OPA365—2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier
    Data sheet: PDF | HTML
  • OPA2365—2.2V, 50MHz, Low-Noise Single-Supply Rail-to-Rail Operational Amplifiers
    Data sheet: PDF | HTML
Fully differential amplifiers
  • THS4551—Low Noise, Precision, 150MHz, Fully Differential Amplifier
    Data sheet: PDF | HTML
  • THS4531—Ultra low power 0.25mA, RRO, fully differential amplifier
    Data sheet: PDF | HTML
  • THS4531A—Ultra Low Power, RRO, Fully-Differential Amplifier
    Data sheet: PDF | HTML
Passive and discrete (6)
ESD protection diodes
  • TPD2E007—Dual 10-pF, ±13-V, ±8-kV ESD protection diode for AC Signal Data Interfaces
    Data sheet: PDF | HTML
  • TPD6E001—6 channel 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0
    Data sheet: PDF | HTML
  • TPD2E001—Dual 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0
    Data sheet: PDF | HTML
  • TPD4S012—Quad 0.8-pF, 5.5-V, ±10-kV ESD protection diode with 15-V tolerant Vbus for USB Interface<
    Data sheet: PDF | HTML
  • TPD4E05U06—Quad 0.5-pF, 5.5-V, ±12-kV ESD protection diode for USB, HDMI & High Speed Interfaces
    Data sheet: PDF | HTML
TVS diodes
  • TVS1401—14-V bidirectional flat-clamp surge protection device
    Data sheet: PDF | HTML
  • TIDA-00176—Interface to Sin/Cos Encoders with High-Resolution Position Interpolation Reference Design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-00178—Interface to a Sin/Cos Encoder with Sitara AM437x Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-00202—Interface to a HIPERFACE Position Encoder Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-01527—Discrete Resolver Front-End Reference Design With C2000™ Microcontroller and ±0.1° Accuracy
    Design guide: PDF Schematic: PDF Schematic: PDF
  • TIPD117—Dual-channel data acquisition reference design for optical encoders, 12 bits, 1 MSPS
    Schematic: PDF Schematic: PDF

Technical documentation

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Type Title Date
E-book C2000™ MCU DesignDRIVE Solutions for Industrial Motor Drives 28 Oct 2020
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 28 Oct 2020
Application note Signal Integrity vs. Transmission Rate and Cable Length for RS-485 Transceivers 21 Sep 2017
White paper Simplify the integration of position sensors for industrial drive control system (Rev. A) 21 Nov 2019
E-book E-book: An engineer’s guide to industrial robot designs 16 Nov 2020
Application brief Voltage Reference Solutions in Motor Control Drives 10 May 2022
More literature Decentralized servo architecture webinar 01 Mar 2021
More literature Decentralized servo architecture webinar 01 Mar 2021
Technical article Increase the reliability of industrial drives with an EMC-compliant resolver senso PDF | HTML 01 Aug 2023

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