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    AD737ANZ
    AD737ANZ
    AD737JNZ
    AD737JNZ
    AD637JQ
    AD637JQ
  • Part No.
    AD737ANZ
    AD737JNZ
    AD637JQ
  • Description
    RMS to DC Converter -3.4V 210uA 190kHz/460kHz 8Pin PDIP N Tube
    RMS to DC Converter -3.4V 210uA 190kHz/460kHz 8Pin PDIP N Tube
    ANALOG DEVICES AD637JQ RMS to DC Converter, High Precision, 0.5%, 8MHz, 0 °C, 70℃, DIP, 14Pins
  • Manufacturer
    Adi
    Adi
    Adi
  • Classification
    Accessories
    Operational Amplifiers(General Purpose)
    Power Products
  • Reference Price(USD)
    $11.220
    $6.692
    $12.740
  • Inventory(pcs)
    5k
    246
    3.7k
  • Case/Package
    PDIP-8
    PDIP-8
    CDIP-14
  • Number of Pins
    8
    8
    14
  • Bandwidth
    460 kHz
    190 kHz
    8 MHz
  • Frequency
    -
    -
    8 MHz
  • Power Rating
    -
    -
    108 mW
  • Power Dissipation
    200 mW
    200 mW
    108 mW
  • Number of Positions
    -
    8
    14
  • Supply Voltage (DC)
    -
    16.5V (max)
    -
  • ECCN Code
    -
    EAR99
    EAR99
  • Input Current
    0.16 mA
    0.16 mA
    -
  • Supply Current
    170 µA
    170 µA
    2.2 mA
  • Output Current
    -
    0.16 mA
    -
  • Operating Temperature
    -40℃ ~ 85℃
    0℃ ~ 70℃
    0℃ ~ 70℃
  • Size-Length
    9.27 mm
    9.27 mm
    -
  • Size-Width
    6.35 mm
    6.35 mm
    -
  • Size-Height
    3.3 mm
    3.3 mm
    3.56 mm
  • Mounting Style
    Through Hole
    Through Hole
    Through Hole
  • Packaging
    Tube
    Tube
    Tube
  • REACH SVHC Compliance
    No SVHC
    No SVHC
    No SVHC
  • Lead-Free Status
    Lead Free
    Lead Free
    Contains Lead
  • RoHS
    RoHS Compliant
    RoHS Compliant
    Non-Compliant
  • Product Lifecycle Status
    Obsolete
    Active
    Active
  • Operating Temperature (Max)
    85 ℃
    70 ℃
    70 ℃
  • Supply Voltage (Min)
    -
    -
    3 V
  • 3dB Bandwidth
    190kHz, 460kHz
    190kHz, 460kHz
    8000 kHz
  • Power Dissipation (Max)
    200 mW
    200 mW
    108 mW
  • Operating Temperature (Min)
    -40 ℃
    0 ℃
    0 ℃
  • Supply Voltage
    2.8V ~ 16.5V
    2.8 V
    3.18 VDC
  • Accuracy
    -
    0.3 %
    0.5 %
  • Input Voltage
    2.8V ~ 16.5V
    -
    -
  • REACH SVHC Compliance Edition
    -
    2015/12/17
    2015/12/17
  • Output Current (Max)
    -
    160 µA
    -
  • Supply Voltage (Max)
    -
    -
    18 V
  • Overview
    AD737ANZ Product overview

    RMS to DC Converter 8-PDIP

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    AD737JNZ Product overview

    The AD737 series low power/precision monolithic true RMS-to-DC Converter maintains high accuracy while measuring a wide range of input waveforms, including variable duty cycle pulses and triac (phase) controlled sine waves. It is laser trimmed to provide a maximum error of ±0.2mV ±0.3% of reading with sine wave inputs. The small physical size of this converter make it suitable for upgrading the performance of non-RMS precision rectifiers in many applications. Compared to these circuits, the AD737 is higher accuracy at equal or lower cost. The AD737 computes the RMS value of both the AC and DC input voltages and is AC-coupled by adding an input capacitor. In this mode, the AD737 can resolve input signal levels of 100µVrms or less, despite variations in temperature or supply voltage. High accuracy is maintained for input waveforms with crest factors of 1 to 3 and crest factors at 2.5% or less with respect to full-scale input level.

    .
    Computes true RMS value, average rectified value and absolute value
    .
    Provides 200mV Full-scale input range (larger inputs with input scaling)
    .
    Direct interfacing with 3 1/2 digit CMOS analogue-to-digital converters (ADCs)
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    1012R High input impedance
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    25pA maximum Low input bias current
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    ±0.2mV ±0.3% of reading High accuracy
    .
    RMS conversion with signal crest factors up to 5
    .
    25µA (typical) Standby current low power
    .
    No external trims needed for specified accuracy
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    AD637JQ Product overview

    The AD637JQ is a complete, high accuracy, RMS-to-DC Converter that computes the true rms value of any complex waveform. It offers performance that is unprecedented in integrated circuit RMS-to-DC converter and comparable to discrete and modular techniques in accuracy, bandwidth and dynamic range. This computes the true root mean square, mean square or absolute value of any complex AC (or AC plus DC) input waveform and gives an equivalent dc output voltage. The true rms value of a waveform is more useful than an average rectified signal because it relates directly to the power of the signal. The rms value of a statistical signal relates to the standard deviation of the signal. Superior crest factor compensation permits measurements of signals with crest factors of up to 10 with less than 1% additional error.

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    High accuracy
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    Wide bandwidth
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    60dB Output range
    .
    Analogue 3-state operation
    .
    2.2mA to 350µA Quiescent current reduction
    Patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD.
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