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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

Sense voltage/current

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Precise voltage and current measurement module. Usually includes signal conditioning, filtering, buffering and analog-to-digital conversion stages.

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Data converters (8)
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
High-speed ADCs (≥10 MSPS)
  • ADS4229—Dual-Channel, 12-Bit, 250-MSPS Analog-to-Digital Converter (ADC)
    Data sheet: PDF | HTML
  • ADC12J4000—12-Bit, 4.0-GSPS, RF Sampling Analog-to-Digital Converter (ADC)
    Data sheet: PDF | HTML
Amplifiers (17)
Precision op amps (Vos<1mV)
  • THP210—High precision (40-μV, 0.1μV/C), high-voltage (36-V), low-noise (3.7-nV/√Hz), fully-differential amp
    Data sheet: PDF | HTML
  • OPA4187—Zero-drift (10µV, 0.001µV/C˚), MUX-friendly, low power, RRO, CMOS quad precision op amp (quad)

    Data sheet: PDF | HTML
  • OPA2828—Dual, high-speed (45 MHz and 150 V/μs), 36-V, low-noise (4 nV/√Hz) RRO JFET operational amplifier
    Data sheet: PDF | HTML
  • OPA2189—Dual, 14-MHz, MUX-friendly, low-noise, zero-drift, RRO, CMOS precision operational amplifier
    Data sheet: PDF | HTML
  • OPA2192—36-V, Precision, RRIO, Low Offset Voltage, Low Input Bias Current Op Amp With e-trim
    Data sheet: PDF | HTML
  • OPA2140—Dual-channel, 11-MHz, low-noise 36-V JFET precision operational amplifier with rail-to-rail output
    Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)
  • LMH6714—Single Wideband Video Op Amp
    Data sheet: PDF | HTML
  • OPA2810—Dual channel, high performance, 27 V, 105 MHz, RRIO FET input op amp
    Data sheet: PDF | HTML
  • BUF802—Wide-bandwidth, 2.3-nV/√Hz, high-input impedance JFET buffer
    Data sheet: PDF | HTML
  • OPA810—Single Channel, High Performance, 27 V, 140 MHz, RRIO FET Input Op Amp
    Data sheet: PDF | HTML
  • OPA695—Ultra-Wideband, Current-Feedback Operational Amplifier with Disable
    Data sheet: PDF | HTML
  • OPA814—600-MHz, high-precision unity-gain-stable FET-input operational amplifier
    Data sheet: PDF | HTML
Fully differential amplifiers
  • OPA862—12.6V, Low-noise, single-ended-to-differential, high input impedance amplifier
    Data sheet: PDF | HTML
  • THS4552—Dual Channel, Low-Noise, Precision, 150-MHz, Fully Differential Amplifier
    Data sheet: PDF | HTML
  • THS4551—Low Noise, Precision, 150MHz, Fully Differential Amplifier
    Data sheet: PDF | HTML
  • THS4561—Low-power, 60-MHz, wide-supply-range fully differential amplifier
    Data sheet: PDF | HTML
Programmable & variable gain amplifiers (PGAs & VGAs)
  • LMH6518—900 MHz, Digitally Controlled, Variable Gain Amplifier
    Data sheet: PDF | HTML
Passive and discrete (7)
TVS diodes
ESD protection diodes
  • TPD4E1B06—Quad 0.7-pF, ±5.5-V, ±12-kV ESD protection diode with 0.5-nA max leakage in SOT & SC70 packages
    Data sheet: PDF | HTML
  • TPD1E10B06—12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package
    Data sheet: PDF | HTML
  • TPD4EUSB30—Quad 0.8-pF, 5.5-V, ±8-kV ESD protection diode with 5-A 8/20-uS surge rating for USB 3.0
    Data sheet: PDF | HTML
  • TPD8E003—8 channel 9-pF, 5.5-V, ±12-kV ESD protection diode
    Data sheet: PDF | HTML
  • TPD1E1B04—1-pF, ±3.6-V, ±30-kV ESD protection diode with 6.3-A 8/20-uS surge & low clamping in 0402 packa
    Data sheet: PDF | HTML
Switches & multiplexers (6)
Analog switches & muxes
  • MUX508—9.4-pF on-state capacitance, 36-V, 8:1, 1-channel analog multiplexer
    Data sheet: PDF | HTML
  • TS12A4516—±6-V dual-supply, 1:1 (SPST), 1-channel general-purpose analog switch (active high)
    Data sheet: PDF | HTML
  • SN74LVC1G3157—5-V, 2:1 (SPDT), 1-channel general-purpose analog switch
    Data sheet: PDF | HTML
  • TMUX8212—100-V, flat RON, 1:1 (SPST), four-channel switches with latch-up Immunity and 1.8-V
    Data sheet: PDF | HTML
  • TMUX7219—44-V, latch-up immune, 2:1 (SPDT) precision switch with 1.8-V logic
    Data sheet: PDF | HTML
  • TMUX1102—3-pA on-state leakage current, 5-V, 1:1 (SPST), 1-channel precision switch (active low)
    Data sheet: PDF | HTML
Logic & voltage translation (12)
Noninverting buffers & drivers
Inverting buffers & drivers
  • SN74LVC540A—8-ch, 1.65-V to 3.6-V inverters with 3-state outputs
    Data sheet: PDF | HTML
  • SN74LVC1G14—Single 1.65-V to 5.5-V inverter with Schmitt-Trigger inputs
    Data sheet: PDF | HTML
  • SN74ACT14—6-ch, 4.5-V to 5.5-V inverters with Schmitt-Trigger inputs
    Data sheet: PDF | HTML
  • SN74LVC2G240—2-ch, 1.65-V to 5.5-V inverters with 3-state outputs
    Data sheet: PDF | HTML
  • SN74LVT162240—16-ch, 2.7-V to 3.6-V inverters with TTL-compatible CMOS inputs and 3-state outputs
    Data sheet: PDF | HTML
  • SN74LVC14A—6-ch, 2-V to 3.6-V inverters with Schmitt-Trigger inputs
    Data sheet: PDF | HTML
Power management (6)
Series voltage references
  • REF70—Ultra-high-precision voltage reference with low noise and low drift
    Data sheet: PDF | HTML
  • REF50E—Enhanced low-noise (0.5µVpp/V), low-drift (2.5ppm°/C), wide-VIN (42V) precision voltage reference
    Data sheet: PDF | HTML
  • REF4132—12-ppm/°C low-noise low-power precision voltage reference
    Data sheet: PDF | HTML
  • REF1930—3-V Vref, dual-output Vref & Vref/2 voltage reference
    Data sheet: PDF | HTML
  • REF6041—4.096-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin
    Data sheet: PDF | HTML
  • REF6050—5-V, 5-ppm/°C high-precision voltage reference with integrated buffer & enable pin
    Data sheet: PDF | HTML
  • TIDA-01036—High-Q Active Differential Bandpass Filter Reference Design for Instrumentation Qualification
    Design guide: PDF Schematic: PDF
  • TIDA-01037—20-bit, 1-MSPS Isolator Optimized Data Acquisition Reference Design Maximizing SNR and Sample Rate
    Design guide: PDF Schematic: PDF
  • TIDA-01050—Optimized Analog Front End DAQ System Reference Design for 18 bit SAR Data Converters
    Design guide: PDF Schematic: PDF
  • TIDA-01051—Reference Design Optimizing FPGA Utilization and Data Throughput for Automatic Test Equipment
    Design guide: PDF Schematic: PDF
  • TIDA-01052—ADC Driver Reference Design Improving Full Scale THD Using Negative Supply
    Design guide: PDF Schematic: PDF
  • TIDA-01053—ADC Driver Reference Design Optimizing THD, Noise, and SNR for High Dynamic Range Instrumentation
    Design guide: PDF Schematic: PDF
  • TIDA-01054—Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems
    Design guide: PDF Schematic: PDF
  • TIDA-01055—ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
    Design guide: PDF Schematic: PDF
  • TIDA-01056—20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
    Design guide: PDF Schematic: PDF
  • TIDA-01057—Reference Design Maximizing Signal Dynamic Range for True 10 Vpp Differential Input to 20 bit ADC
    Design guide: PDF Schematic: PDF
  • TIPD115—Data acquisition optimized for low distortion, low noise 18-bit 1-MSPS reference design
    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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