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ADR318:  Precision Low Drift SOT-23 Voltage Reference with Shutdown

The ADR318* is a precision 1.8 V band gap voltage reference featuring high accuracy, high stability, and low power consumption in a tiny footprint. Patented temperature drift curvature correction techniques minimize nonlinearity of the voltage change with temperature. The wide operating range and low power consumption with additional shutdown capability make the part ideal for battery-powered ...More

ADR318:  Precision Low Drift SOT-23 Voltage Reference with Shutdown

Product Description

The ADR318* is a precision 1.8 V band gap voltage reference featuring high accuracy, high stability, and low power consumption in a tiny footprint. Patented temperature drift curvature correction techniques minimize nonlinearity of the voltage change with temperature. The wide operating range and low power consumption with additional shutdown capability make the part ideal for battery-powered applications. The VOUT (SENSE) pin enables greater accuracy by supporting full Kelvin operation in PCBs employing thin or long traces.

The ADR318 is a low dropout voltage (LDV) device that provides a stable output voltage from supplies as low as 600 mV above the output voltage. This device is specified over the industrial operating range of 0°C to 70°C, and is available in a tiny 5-lead SOT-23 package.

The combination of VOUT (SENSE) and shutdown functions also enables a number of unique applications, combining precision reference/regulation with fault decision and overcurrent protection.

See the Applications section for details.

Applications

  • Battery-powered instrumentation
  • Portable medical instruments
  • Data acquisition systems
  • Industrial process control systems
  • Fault protection critical systems

    • * Protected by U.S. Patent No. 5,969,657; other patents pending.


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    TOOLS, SOFTWARE & SIMULATION MODELS

    • Initial accuracy: ±5 mV maximum, ±0.27% maximum
    • Low temperature coefficient: 25 ppm/°C maximum
    • Load regulation: 100 ppm/mA
    • Line regulation: 25 ppm/V
    • Low supply headroom: 0.6 V
    • Wide operating range: (VOUT + 0.6 V) to 15 V
    • Low power: 120 µA maximum
    • Shutdown to less than 3 µA maximum
    • Output current: 5 mA
    • Wide temperature range: 0°C to 70°C
    • Tiny 5-lead SOT-23 package
    • Vout: 1.8
    • Initial Accuracy (%): 0.27
    • Ref Out TC (ppm/C): 5ppm/C
    • Supply Voltage Range (V): +2.4 to +15
    • Supply Current : 120µA
    • Ref Output Current (mA): 5mA
    • 0.1-10 Hz Noise (µV p-p): 5µV p-p
    • Temp Range(s): 0 to +70
    • Package: SOT23
    • Reference Type: Series-Low Dropout

    Pin Configuration Diagram for ADR318

    ADR318 Diagram
    Pin Configuration Diagram for ADR318

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    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
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    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
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