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ADR431:  Ultralow Noise XFET® Voltage References with Current Sink and Source Capability

The ADR43x series is a family of XFET voltage references featuring low noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR43x is minimized.

The XFET references operate at lower current (800 µA) and ...More

ADR431:  Ultralow Noise XFET® Voltage References with Current Sink and Source Capability

Product Description

The ADR43x series is a family of XFET voltage references featuring low noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR43x is minimized.

The XFET references operate at lower current (800 µA) and supply headroom (2 V) than buried Zener references. Buried Zener references require more than 5 V headroom for operations. The ADR43x XFET references are the only low noise solutions for 5 V systems.

The ADR43x family has the capability to source up to 30 mA of output current and sink up to 20 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.

The ADR43x is available in 8-lead MSOP and narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.

Applications

  • Precision data acquisition systems
  • High resolution data converters
  • Medical instruments
  • Industrial process control systems
  • Optical control circuits
  • Precision instruments
  • Ts

    TOOLS, SOFTWARE & SIMULATION MODELS

    • Low noise (0.1 Hz to 10.0 Hz):
      3.5 µV p-p @ 2.5 V output
    • No external capacitor required
    • Low temperature coefficient
      A Grade: 10 ppm/°C maximum
      B Grade: 3 ppm/°C maximum
    • Load regulation: 15 ppm/mA
    • Line regulation: 20 ppm/V
    • Wide operating range:
      ADR430: 4.1 V to 18 V
      ADR431: 4.5 V to 18 V
      ADR433: 5.0 V to 18 V
      ADR434: 6.1 V to 18 V
      ADR435: 7.0 V to 18 V
      ADR439: 6.5 V to 18 V
    • High output source and sink current:
      +30 mA and −20 mA
    • Wide temperature range: −40°C to +125°C
    • Vout: 2.5
    • Initial Accuracy (%): 0.04
    • Ref Out TC (ppm/C): 1ppm/C
    • Supply Voltage Range (V): +4.5 to +18
    • Supply Current : 800µA
    • Ref Output Current (mA): 30mA
    • 0.1-10 Hz Noise (µV p-p): 3.5µV p-p
    • Temp Range(s): -40 to +125
    • Package: MSOP,SOIC
    • Reference Type: Series

    Pin Configuration Diagram for ADR431

    实验室电路

    Find more at our Circuits Library.

    Of NOTE

    Part# Vout Initial Accuracy (%) Ref Out TC (ppm/C) 0.1-10 Hz Noise (µV p-p) Ref Output Current (mA) Supply Voltage Range (V) Temp Range(s) Supply Current Reference Type Package Price* (1000-4999) Product Description
    ADR130 +0.5/+1 Pin Programmable 0.35 5 3 4 2V to 18V -40 to +125 150µA Series TSOT $0.92 Precision, Sub-Band Gap, Series Voltage Reference
    AD584 +2.5/+5/+7.5/+10 Prog 0.05 5 50 10 +4.5 to +30 -55 to +125, 0 to +70 1mA Series-Multi/Select Out DIP, TO-92 $3.05 10.000 V, 7.500 V, 5.000 V and 2.500 V, Pin Programmable Precision Voltage Reference
    ADR510 1.0 0.35 70 4 n/a n/a, shunt ref -40 to +85 n/a Shunt SOT23 $0.60 1.0 V Precision, Low Noise, Shunt Voltage Reference
    AD1580 1.2 0.08 50 5 n/a n/a, shunt ref -40 to +85 n/a Shunt SC70, SOT23 $0.61 1.2 V Micropower, Precision Shunt Voltage Reference
    ADR512 1.2 0.3 60 4 n/a n/a shunt ref -40 to +85 n/a Shunt SOT23 $0.60 1.2 V Precision, Low Noise Shunt Voltage Reference
    ADR280 1.2 0.4 5 2.2 100 +2.4 to +5.5 -40 to +85 16µA Series SC70, SOT23 $0.76 1.20 V, Low Noise, Low Power, High PSRR, Precision Voltage Reference
    AD589 1.2 1.2 10 5 n/a n/a, Shunt Type Reference -55 to +125, 0 to +70 50µA Shunt Metal Can, SOIC $1.33 Two-Terminal IC 1.2 V Shunt Reference
    ADR1581 1.25 0.12 50 4.5 n/a n/a, shunt ref -40 to +85 n/a Shunt SOT23 $0.61 1.25 V Micropower, Precision Shunt Voltage Reference
    ADR127 1.25 0.12 3 5 5 +2.7 to +18 -40 to +125 125µA Series TSOT $0.92 1.25V, Precision Micropower LDO Voltage Reference
    ADR827 1.25 0.4 15 8 5 +2.7V to +15V -40 to +125 400µA Series MSOP $1.11 Low Power, Precision Reference and Op Amp
    ADR1500 1.2875 0.2 170 5 n/a n/a, shunt reference -40 to +85 n/a Shunt SC70 $1.03 1.2875 V Micropower, Shunt Voltage Reference
    ADR318 1.8 0.27 5 5 5 +2.4 to +15 0 to +70 120µA Series-Low Dropout SOT23 $0.82 1.8 V Precision Voltage Reference
    AD588 10 0.01 1.5 6 10 Vdd-Vss = (Vout+2) to +36 -25 to +85, 0 to +70 10mA Series-Multi/Select Out DIP $15.21 +10 V, +5 V, ±5 V tracking, −5 V, −10 V, High Precision Voltage Reference
    AD688 10 0.02 1.5 6 10 Vdd-Vss = (Vout+2) to 36 -40 to +85, -55 to +125 12mA Series-Multi/Select Out DIP, SOIC $9.19 High Precision ±10 V Reference
    AD581 10 0.05 5 40 10 +12 to +30 -55 to +125, 0 to +70 1mA Series TO-52 $4.14 High Precision 10 V IC Reference
    AD587 10 0.05 5 4 10 +13.5 to +36 -55 to +125, 0 to +70 4mA Series DIP, SOIC $2.55 High Precision 10 V Reference
    ADR01 10 0.05 3 20 10 +12 to +40 -40 to +125, 0 to +70 1mA Series SC70, SOIC, TSOT $1.00 Ultra-Compact, Precision 10V Voltage Reference
    REF01 10 0.3 3 30 10 +12 to +40 -40 to +85, -55 to +125 1.4mA Series DIP, SOIC, TO-99 $1.21 +10V Precision Voltage Reference
    ADR440 2.048 0.05 1 1 10 +3 to +18 -40 to +125 3.75mA Series-Low Dropout DIP, MSOP, SOIC $2.53 2.048 V, Ultralow Noise, LDO XFET® Voltage Reference with +10/-5 mA Output Current Capability
    ADR420 2.048 0.05 1 1.75 10 +4.0 to +18 -40 to +125 500µA Series MSOP, SOIC $2.82 2.048 V XFET® Voltage Reference
    ADR430 2.048 0.05 1 3.5 30 +4.1 to +18 -40 to +125 800µA Series MSOP, SOIC $2.96 2.048 V High Precision, Low Noise XFET® Reference with Output Sink and Source Capability
    ADR5040 2.048 0.1 10 - n/a n/a, is shunt ref -40 to +125 n/a Shunt SC70, SOT23 $0.30 Precision Micropower Shunt Mode Voltage Reference, 2.048 V Output
    REF191 2.048 0.1 2 20 30 +2.3 to +15 -40 to +85 45µA Series-Low Dropout DIP, SOIC $1.38 2.048, Precision Micropower, Low Dropout, Low Voltage Reference
    ADR360 2.048 0.15 9 6.8 5 +2.35 to +15 -40 to +125 190µA Series-Low Dropout TSOT $0.78 Low Power, Low Noise Voltage Reference w/ Sink/Source Capability, 2.048 VOUT
    ADR370 2.048 0.2 30 70 5 +2.3 to +15 -40 to +125 72µA Series-Low Dropout SOT23 $0.75 2.048 V Tiny Package Precision Reference
    ADR380 2.048 0.24 5 5 5 +2.4 to +18 -40 to +85 120µA Series-Low Dropout SOT23 $0.76 2.048 V Bandgap Voltage Reference
    REF43 2.5 0.02 25 4 20 +4.5 to +40 -40 to +85 450µA Series DIP, SOIC $3.69 +2.5V Low Power Precision Voltage Reference
    AD780 2.5 0.04 3 4 10 +4 to +36 -40 to +85 1mA Series-Multi/Select Out DIP, SOIC $3.65 2.5 V/3.0 V Ultrahigh Precision Bandgap Voltage Reference
    ADR441 2.5 0.04 1 1.2 10 +3 to +18 -40 to +125 3.75mA Series-Low Dropout DIP, MSOP, SOIC $2.53 2.5 V, Ultralow Noise, LDO XFET® Voltage Reference with +10/-5 mA Output Current Capability
    ADR431 2.5 0.04 1 3.5 30 +4.5 to +18 -40 to +125 800µA Series MSOP, SOIC $2.96 2.5 V High Precision, Low Noise XFET® Reference with Output Sink and Source Capability
    ADR421 2.5 0.04 1 1.75 10 +4.5 to +18 -40 to +125 500µA Series MSOP, SOIC $2.82 2.5 V XFET® Voltage Reference
    AD1582 2.5 0.08 50 70 5 +2.7 to +12 -40 to +125 70µA Series-Low Dropout SOT23 $0.61 2.5V Micropower, Precision Series Mode Voltage Reference
    ADR291 2.5 0.08 3 8 5 +3 to +15 -40 to +125 12µA Series-Low Dropout SOIC, TSSOP $1.78 Precision, Micropower 2.5 V XFET™ Reference
    REF192 2.5 0.08 2 25 30 +2.6 to +15 -40 to +85 45µA Series-Low Dropout DIP, SOIC, TSSOP $1.38 Precision Micropower, Low Dropout, Low Voltage References, Nom. Vo=2.50 V
    ADR5041 2.5 0.1 10 - n/a n/a, shunt ref -40 to +125 n/a Shunt SC70, SOT23 $0.30 Precision, Micropower, Shunt Mode Voltage Reference, Vout = 2.5V
    ADR03 2.5 0.1 3 10 10 +4.5 to +40 -40 to +125 1mA Series SC70, SOIC, TSOT $1.03 Ultra-Compact, Precision 2.5 V Voltage Reference
    ADR121 2.5 0.12 3 10 5 +2.8 to +18 -40 to +125 125µA Series-Low Dropout TSOT $0.92 2.5V, Precision Micropower LDO Voltage Reference