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1B51:  Isolated mV/Thermocouple Signal Conditioner

The 1B51 is a precision, mV/thermocouple signal conditioner that incorporates a circuit design utilizing transformer based isolation and automated surface mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for measurement and control applications, it is specially suited for harsh environments with extremely ...More

1B51:  Isolated mV/Thermocouple Signal Conditioner

Product Description

The 1B51 is a precision, mV/thermocouple signal conditioner that incorporates a circuit design utilizing transformer based isolation and automated surface mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for measurement and control applications, it is specially suited for harsh environments with extremely high common-mode interference. Unlike costlier solutions that require separate dc/dc converters, each 1B51 generates its own input side power, providing true, low cost channel-to channel isolation.

Applications
  • Multichannel Thermocouple Temperature
  • Measurement
  • Low Level Data Acquisition Systems
  • Industrial Measurement & Control Systems

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    • Functionally Complete Precision COnditioner
    • High Accuracy
      Low Input Offset Tempco: ±0.1µ/°C
      Low Nonlinearity: ±0.025%
      High CMV: 160dB (60Hz, G=1000V/V)
    • 240V rms Input Protection
    • Small Package: 1.0"x2.1"x0.35" DIP
    • Isolated Power
    • Low Pass Filter (fc=3Hz)
    • Pin Compatible with 1B41 Isolated RTD Conditioner
    • Supply Voltage (v): ±15V
    • Input Type: TC
    • Input Range: Refer to Data Sheet
    • Isolated: Y
    • Bandwidth (Hz): 3Hz
    • Output Type: V
    • Output Range : +/- 10V

    Functional Block Diagram for 1B51

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    Part# Supply Voltage (v) Input Type Isolated Bandwidth (Hz) Output Range Output Type Input Range Price* (1000-4999)
    1B21 ±15 Vin Y 100 4-20mA, 0-20mA I 0-1V to 0-10V $53.44
    1B22 ±15 Vin Y 400 4-20mA, 0-20mA V 0-1V to 0-10V $73.33
    1B31 ±15 Gage Y 20000 +/- 10V V Refer to Data Sheet $188.24
    1B32 ±15 Gage N 4 +/- 10V V Refer to Data Sheet -
    1B41 ±15 RTD Y 3 +/- 10V V Refer to Data Sheet $110.09
    1B51 ±15 TC Y 3 +/- 10V V Refer to Data Sheet $100.26
    3B16 ±15 Gage N 3 4-20mA, 0-20mA I, V +/- 5mV to +/- 500mV $142.33
    3B17 ±15 LVDT, RVDT N 100 +/- 10V, 4-20mA, 0-20mA I, V 20mV rms to 5V rms $212.20
    3B18 ±15 Gage N 10000 +/- 10V, 4-20mA, 0-20mA I, V +/- 5mV to +/- 500mV $154.77
    3B20 ±15 AC Gage N 100 +/- 10V, 4-20mA, 0-20mA I, V 1.5mV rms to 150mV rms $204.72
    3B30 ±15 mV Y 3 +/- 10V, 4-20mA, 0-20mA I, V +/- 5mV to +/- 500mV $159.61
    3B31 ±15 V Y 3 +/- 10V, 4-20mA, 0-20mA I, V +/- .5V to +/- 20V $159.61
    3B32 ±15 I Y 3 +/- 10V, 4-20mA, 0-20mA I, V 0-20mA, 4-20mA $159.61
    3B34 ±15 RTD Y 3 0-10V, 4-20mA, 0-20mA I, V Refer to Data Sheet $218.47
    3B37 ±15 TC Y 3 0-10V, 4-20mA, 0-20mA I, V Refer to Data Sheet $175.49
    3B39 ±15 V Y 400 4-20mA, 0-20mA I +/- 10V, 0-10V $144.62
    3B40 ±15 mV Y 10000 +/- 10V, 4-20mA, 0-20mA I, V +/- 5mV to +/- 500mV $180.02
    3B41 ±15 V Y 10000 +/- 10V, 4-20mA, 0-20mA I, V +/- .5V to +/- 20V $182.86
    3B42 -15 AC mV Y 3 0-10V, 4-20mA, 0-20mA I, V 20mV rms to 1V rms $190.44
    3B43 ±15 AC V Y 3 0-10V, 4-20mA, 0-20mA I, V 1V rms to 50V rms $194.24
    3B44 ±15 AC V Y 3 +/- 10V, 4-20mA, 0-20mA I, V 50V rms to 550V rms $194.24
    3B45 ±15 Frequency Y n/a 0-10V, 4-20mA, 0-20mA I, V 25 Hz to 1100 Hz $188.62
    3B46 ±15 Frequency Y n/a +/- 10V, 4-20mA, 0-20mA I, V 520 Hz to 25 kHz $189.21
    3B47 ±15 TC Y 3 0 to +10V, 4-20mA, 0-20mA V Refer to Data Sheet $217.64
    5B30 +5 mV Y 4 +/- 5V, 0-5V V +/-10mv to +/- 100mV $88.57
    5B31 +5 V Y 4 +/- 5V, 0-5V V +/- 1V to +/- 20V $88.57
    5B32 +5 I Y 4 +/- 5V, 0-5V V 0-20mA, 4-20mA $88.57
    5B34 +5 RTD Y 4 0-5V V Refer to Data Sheet $88.57
    5B35 +5 RTD Y 4 0-5V V Refer to Data Sheet $108.96
    5B36 +5 Potentiometer Y 4 0-5V V 0-10kohm $116.93
    5B37 +5 TC Y 4 +/- 5V, 0-5V V Refer to Data Sheet $88.57
    5B38 +5 Gage Y 10000 +/- 5V V +/-10mv to +/- 200mV $106.29
    5B39 +5 V Y 400 4-20mA, 0-20mA I +/- 5V, 0-5V $88.57
    5B40 +5 mV Y 10000 +/- 5V, 0-5V V +/-10mv to +/- 100mV $88.57
    5B41 +5 V Y 10000 +/- 5V, 0-5V V +/- 1V to +/- 20V $88.57
    5B42 +5 I Y 100 1-5V, 2-10V V 0-20mA, 4-20mA $116.93
    5B45 +5 Frequency Y n/a +/- 5V, 0-5V V 500 Hz to 20 kHz $106.29
    5B46 +5 Frequency Y n/a +/- 5V, 0-5V V 20 kHz to 275 kHz $106.29
    5B47 +5 TC Y 4 0-5V V Refer to Data Sheet $116.93
    6B11 +5 I, mV, TC, V Y 4 RS-485 or RS-232 Serial RS-485 Refer to Data Sheet $122.97
    6B12 +5 mV, V Y 4 RS-485 or RS-232 Serial RS-485 Refer to Data Sheet $116.44
    6B13 +5 RTD Y 4 RS-485 or RS-232 Serial RS-485 Refer to Data Sheet $129.38
    6B21 +5 n/a Y 3 RS-485 or RS-232 Serial RS-485 Software Settable $131.19
    6B50 +5 Digital N 1000 RS-485 or RS-232 Serial RS-485 TTL or CMOS $116.90
    7B14 +24 RTD N 3 0-10V, 1-5V V Refer to Data Sheet $63.79
    7B21 ±25 V Y 300 +/- 10V V +/- 10V $81.71
    7B22 ±25 V Y 400 +/- 10V V +/- 10V $81.70
    7B27 +24 TC Y 3 0-10V, 1-5V V Refer to Data Sheet $81.73
    7B30 +24 mV Y 3 0-10V, 1-5V V +/- 10mV to +/- 1V $81.70
    7B31 +24 V Y 3 0-10V, 1-5V V +/- 5V to +/- 50V $81.70
    7B32 +24 I Y 100 0-10V, 1-5V V 0-20mA, 4-20mA $70.00
    7B33 +24 V or mA Y 100 0-10V, 1-5V V 0-5V, 1-5V $61.28
    7B34 +24 RTD Y 3 0-10V, 1-5V V Refer to Data Sheet $85.41
    7B35 +24 I Y 100 0-10V, 1-5V V 4-20mA $83.65
    7B37 +24 TC Y 3 0-10V, 1-5V V Refer to Data Sheet $81.70
    7B39 +24 V Y 100 4-20mA, 0-20mA I 0-10V, 1-5V $69.44
    7B40 +24 mV Y 10000 0-10V, 1-5V V +/- 10mV to +/- 1V $93.58
    7B41 +24 V Y 10000 0-10V, 1-5V V +/- 5V to +/- 50V $94.70
    7B47 +24 TC Y 3 0-10V, 1-5V V Refer to Data Sheet $107.70
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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.