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Parametric measurement unit (PMU)

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Block diagram

Parametric measurement unit (PMU)

Block diagram

Overview

Our integrated circuits and reference designs help you create high-accuracy parametric measurement unit (PMU) designs at wafer, package and board levels enabling dense solutions for a high number of channels while minimizing channel-to-channel variation.

Design requirements

Next-generation PMU designs often require:

  • Highest levels of speed and accuracy through data acquisition channels.
  • Tight temperature controls to minimize measurement drift.
  • Precise reference voltage generation to improve measurement accuracy.
  • Low jitter clock distribution to maximize signal-to-noise ratio (SNR) performance.
  • Highly-integrated, low-height power modules minimizing board-to-board spacing.
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Block diagram

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Parametric measurement unit (PMU)

Please try to keep your diagram above this line. Please try to keep your diagram above this line. Please try to keep your diagram above this line. Please try to keep your diagram above this line. Please keep your diagram within the guides Please keep your diagram within the guides Please keep your diagram within the guides Please keep your diagram within the guides Please place the top of your diagram at the top guide. Please place the top of your diagram at the top guide. DUT Board DUTBoard Switching: Solid State, Relays, and Pogo Pins Switching: Solid State, Relays, and Pogo Pins Relay Relay EEPROM EEPROM Relay Relay Relay Relay Relay Relay Logic Logic MUX MUX MUX MUX MUX MUX MUX MUX I/O Expander I/OExpander MOSFET MOSFET PC PC Pin Measurement Unit / Pin Electronics Pin Measurement Unit / Pin Electronics Force Voltage / Current Force Voltage / Current Buffer Buffer DAC DAC Relay Relay Amp Amp Gain / Attn. Analog SW Gain / Attn.Analog SW Logic Logic TVS TVS Voltage Reference VoltageReference Sense Voltage / Current Sense Voltage / Current Buffer Buffer Relay Relay Amp Amp Gain / Attn. Analog SW Gain / Attn.Analog SW Logic Logic TVS TVS ADC ADC Voltage Reference VoltageReference Device Power Supply Device Power Supply Voltage Reference VoltageReference Comp Comp Amp Amp Current Sensing CurrentSensing Diff Amp DiffAmp DAC DAC Memory Memory DDR Power DDR Power Flash Flash DDR SDRAM DDR SDRAM DDR SW / MUX DDRSW / MUX Voltage Level Translator Voltage LevelTranslator Arbitrary Waveform Generator Arbitrary Waveform Generator DAC DAC LPF LPF Buffer Buffer MUX MUX Digital Processing Digital Processing Processor (DSP) Processor (DSP) FPGA FPGA - or - - or - Internal Calibration Internal Calibration Temperature Sensing TemperatureSensing Voltage Reference VoltageReference Current Sensing CurrentSensing ADC ADC Amp Amp Amp Amp DAC DAC Gain Setting Analog Switch Gain SettingAnalog Switch Digital Potentiometer DigitalPotentiometer Status Signaling Status Signaling LED Driver LED Driver Status LED StatusLED Clocking Clocking Clock Oscillator ClockOscillator Low Jitter Clock Gen Low JitterClock Gen PLL PLL Logic Logic External Clock ExternalClock Clock Buffer Clock Buffer MUX MUX Signal Input/Output Protection Signal Input/Output Protection ESD Protection ESDProtection TVS Protection TVSProtection Module Power Supply Module Power Supply Power Sequencer Power Sequencer DC/DC Module DC/DCModule Hot Swap Controller Hot Swap Controller Fan Control Fan Control Motor Driver MotorDriver Fan Fan Temp Sensor TempSensor Wired Interface Wired Interface Digital Isolator DigitalIsolator Voltage Level Translator Voltage LevelTranslator Buffer, Driver Receiver Buffer, Driver Receiver RS-485 RS-232 RS-485RS-232 I2C SW / MUX I2CSW / MUX I2C I/O Expander I2C I/O Expander System Power Supply System Power Supply EMI Filter EMIFilter Rectifier Rectifier PFC Controller PFC Controller Gate Driver Gate Driver HV MOSFET HV MOSFET Temperature Sensing TemperatureSensing Isolated DC/DC Buck IsolatedDC/DC Buck LV MOSFET LVMOSFET Voltage Supervisor Voltage Supervisor eFuse Current Limiter eFuse Current Limiter Amp Amp Current Sensing Current Sensing Shunt Reference Shunt Reference Comp Comp

Internal calibration

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On-board sensors (voltage, current, temperature, etc.) monitor the circuit during the operation to avoid fault conditions as well as self diagnostic and calibration cycles.

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Sensors (9)
Digital temperature sensors
  • LM75B—±2°C, 3.0V to 5.5V industry standard temperature sensor with I2C/SMBus interface
    Data sheet: PDF | HTML
  • LM95234—±2°C Quad Remote and Local Temperature Sensor with TruTherm Technology and SMBus Interface
    Data sheet: PDF | HTML
  • LM95071—±1°C Temperature Sensor with SPI Interface
    Data sheet: PDF | HTML
  • LM92—±0.5°C Temperature Sensor with Alert Function and I2C/SMBus Interface
    Data sheet: PDF | HTML
Analog temperature sensors
  • LM35—1C high voltage analog temperature sensor, 10 mV/C
    Data sheet: PDF | HTML
  • LM60—±2°C analog output temperature sensor with 6.25mV /°C gain and TO-92 option
    Data sheet: PDF | HTML
  • LMT70—0.1C analog temperature sensor, -5.19 mV/C, high-precision matched pairs, output enable pin
    Data sheet: PDF | HTML
Temperature switches
  • TMP300—Resistor-Programmable, up to 18V-Capable Temp Switch and Analog Out Sensor
    Data sheet: PDF | HTML
  • TMP302—Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches
    Data sheet: PDF | HTML
Data converters (12)
Precision DACs (≤10 MSPS)
  • TSMU818A030—8-channel, 18-bit, 30V, 100mA output, high-capacitive- drive parametric measurement unit (PMU)
    Data sheet: PDF | HTML
  • DAC8822—16-bit Dual parallel interface High Accuracy Multiplying DAC
    Data sheet: PDF | HTML
  • DAC81402—Dual-channel 16-bit high-voltage-output DAC with precision internal reference
    Data sheet: PDF | HTML
  • DAC81416—16-channel 16-bit high-voltage output DAC with integrated internal reference
    Data sheet: PDF | HTML
  • DAC81404—Quad-channel, 16-bit, high-voltage-output DAC with precision internal reference
    Data sheet: PDF | HTML
  • DAC8830—16-bit, single-channel, ultra-low power, voltage output DAC
    Data sheet: PDF | HTML
Precision ADCs
  • ADS9813—Eight-channel, 18-bit, 2-MSPS/ch simultaneous sampling ADC with integrated analog front end
    Data sheet: PDF | HTML
  • ADS9212—18-bit, 8MSPS, dual simultaneous-sampling ADC with integrated analog
    Data sheet: PDF | HTML
  • ADS127L11—24-bit, 400-kSPS, delta-sigma ADC with easy-to-drive inputs and wideband or low-latency filters
    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
  • ADS8910B—18-Bit, 1-MSPS, 1-Ch SAR ADC with Internal VREF Buffer, Internal LDO and Enhanced SPI Interface
    Data sheet: PDF | HTML
  • ADS8329—2.7V-to-5.5V 16-Bit 1MSPS Serial Analog-to-Digital Converter (ADC)
    Data sheet: PDF | HTML
Amplifiers (10)
General-purpose op amps
  • OPA2991—Dual, 40-V, 4.5-MHz, low-power operational amplifier
    Data sheet: PDF | HTML
  • OPA994—Single, 32V, 24MHz RRIO high-output-current (125mA) op amp with unlimited capacitance load drive
    Data sheet: PDF | HTML
  • OPA2994—Dual, 32V, 24MHz RRIO high-output-current (125mA) op amp with unlimited capacitance load drive
    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
  • TLV9102—Dual, 16-V, 1.1-MHz, low-power operational amplifier
    Data sheet: PDF | HTML
  • TL072H—Dual, 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
Programmable & variable gain amplifiers (PGAs & VGAs)
  • LMH6518—900 MHz, Digitally Controlled, Variable Gain Amplifier
    Data sheet: PDF | HTML
Analog current-sense amplifiers
  • INA213—26V, bi-directional, high-precision current sense amplifier
    Data sheet: PDF | HTML
  • INA225—36V, bi-directional current sense amplifier w/ four pin-selectable gain settings
    Data sheet: PDF | HTML
  • INA180—26V, 350kHz current sense amplifier
    Data sheet: PDF | HTML
  • TIDA-01526—High Precision Temperature Measurement for Heat and Cold Meters Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-01535—Reference design for power-isolated ultra-compact analog output module
    Design guide: PDF Schematic: PDF
  • TIDA-01583—Ultra-Low Noise Bias Voltage Reference Design for Microbolometer Detectors in Thermal Cameras
    Design guide: PDF Schematic: PDF
  • TIPD120—3-wire RTD Acquisition System Accurately Measures Temperature From -200°C - 850°C
    Schematic: PDF Schematic: PDF
  • TIPD202—Analog Linearized 3-Wire PT1000 RTD to 2-Wire 4-20mA Current Loop Transmitter Reference Design
    Design guide: PDF Schematic: PDF Schematic: PDF

Technical documentation

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Type Title Date
Application brief Precision ADC for Measuring Analog Outputs of Parametric Measurement Unit (PMU) (Rev. B) PDF | HTML 14 Jan 2025
Application brief Pairing up Op Amp and Buffer for Higher Output Power Plus Speed in ATE 11 May 2022
Application brief How to Select Precision Amplifiers for Semiconductor Testers (Rev. A) PDF | HTML 08 May 2022
Application note When to Replace a Relay With a Multiplexer (Rev. A) PDF | HTML 07 Jun 2024
Application brief Solving Power Design Challenges in Semiconductor Test and ATE Applications PDF | HTML 02 Aug 2024

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