Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    ISO122 Search Results

    ISO122 Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    ISO122P Texas Instruments Precision Isolation Amplifier 8-PDIP -25 to 85 Visit Texas Instruments Buy
    ISO122JUE4 Texas Instruments Precision Isolation Amplifier 8-SOIC -25 to 85 Visit Texas Instruments Buy
    ISO122PE4 Texas Instruments Precision Isolation Amplifier 8-PDIP -25 to 85 Visit Texas Instruments Buy
    ISO122JU Texas Instruments Precision Isolation Amplifier 8-SOIC -25 to 85 Visit Texas Instruments Buy
    ISO122JU/1K Texas Instruments Precision Isolation Amplifier 8-SOIC -25 to 85 Visit Texas Instruments Buy
    SF Impression Pixel

    ISO122 Price and Stock

    Texas Instruments ISO122JP

    IC OPAMP ISOLATION 1 CIRC 8DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ISO122JP Tube 2,480 1
    • 1 $31.94
    • 10 $25.87
    • 100 $22.687
    • 1000 $21.89256
    • 10000 $21.89256
    Buy Now
    Mouser Electronics ISO122JP 244
    • 1 $31.94
    • 10 $25.87
    • 100 $22.68
    • 1000 $21.89
    • 10000 $21.89
    Buy Now
    Newark ISO122JP Bulk 836 1
    • 1 $33.49
    • 10 $32.09
    • 100 $30.61
    • 1000 $30.61
    • 10000 $30.61
    Buy Now
    TME ISO122JP 1
    • 1 $30.11
    • 10 $25.02
    • 100 $22.25
    • 1000 $22.25
    • 10000 $22.25
    Get Quote
    Win Source Electronics ISO122JP 1,000
    • 1 -
    • 10 $25
    • 100 $21.667
    • 1000 $21.667
    • 10000 $21.667
    Buy Now

    Texas Instruments ISO1228DFBR

    EIGHT-CHANNEL ISOLATED 24-V TO 3
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ISO1228DFBR Digi-Reel 2,366 1
    • 1 $3.78
    • 10 $2.853
    • 100 $2.366
    • 1000 $2.11058
    • 10000 $2.11058
    Buy Now
    ISO1228DFBR Cut Tape 2,366 1
    • 1 $3.78
    • 10 $2.853
    • 100 $2.366
    • 1000 $2.11058
    • 10000 $2.11058
    Buy Now
    Mouser Electronics ISO1228DFBR 1,082
    • 1 $3.78
    • 10 $2.63
    • 100 $2.37
    • 1000 $2.12
    • 10000 $2.02
    Buy Now

    Texas Instruments ISO122U-1K

    IC OPAMP ISOLATION 1 CIRC 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ISO122U-1K Cut Tape 2,004 1
    • 1 $35.45
    • 10 $28.805
    • 100 $25.3202
    • 1000 $24.45064
    • 10000 $24.45064
    Buy Now
    ISO122U-1K Digi-Reel 2,004 1
    • 1 $35.45
    • 10 $28.805
    • 100 $25.3202
    • 1000 $24.45064
    • 10000 $24.45064
    Buy Now
    ISO122U-1K Reel 1,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $23.49516
    • 10000 $23.49516
    Buy Now

    Texas Instruments ISO122JU-1K

    IC OPAMP ISOLATION 1 CIRC 8SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ISO122JU-1K Cut Tape 1,146 1
    • 1 $29.13
    • 10 $23.527
    • 100 $20.5882
    • 1000 $19.4129
    • 10000 $19.4129
    Buy Now
    ISO122JU-1K Digi-Reel 1,146 1
    • 1 $29.13
    • 10 $23.527
    • 100 $20.5882
    • 1000 $19.4129
    • 10000 $19.4129
    Buy Now
    ISO122JU-1K Reel 1,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $19.04907
    • 10000 $19.04907
    Buy Now

    Texas Instruments ISO122P

    IC OPAMP ISOLATION 1 CIRC 8DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ISO122P Tube 520 1
    • 1 $38.22
    • 10 $31.128
    • 100 $27.4083
    • 1000 $26.48004
    • 10000 $26.48004
    Buy Now
    Mouser Electronics ISO122P 873
    • 1 $38.5
    • 10 $31.98
    • 100 $26.95
    • 1000 $26.07
    • 10000 $26.07
    Buy Now
    TME ISO122P 1
    • 1 $35.13
    • 10 $35.13
    • 100 $31.42
    • 1000 $31.42
    • 10000 $31.42
    Get Quote
    Chip One Stop ISO122P Tube 18
    • 1 $30.5
    • 10 $25.5
    • 100 $25.5
    • 1000 $25.5
    • 10000 $25.5
    Buy Now
    Win Source Electronics ISO122P 2,769
    • 1 -
    • 10 $20.7587
    • 100 $19.1619
    • 1000 $19.1619
    • 10000 $19.1619
    Buy Now

    ISO122 Datasheets (52)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    ISO122 Burr-Brown Precision Lowest Cost ISOLATION AMPLIFIER Original PDF
    ISO122 Texas Instruments Precision Lowest Cost Isolation Amplifier Original PDF
    ISO122JP Burr-Brown Dual Monolithic CMOS 12-Bit Multiplying Digital-to-Analog Converters Original PDF
    ISO122JP Burr-Brown Precision Lowest Cost ISOLATION AMPLIFIER Original PDF
    ISO122JP Texas Instruments Precision Lowest Cost Isolation Amplifier 8-PDIP -25 to 85 Original PDF
    ISO122JP Texas Instruments Precision Lowest Cost IIsolation Amplifier Original PDF
    ISO122JP Texas Instruments ISO122 - Precision Lowest Cost Isolation Amplifier 8-PDIP -25 to 85 Original PDF
    ISO122JPE4 Texas Instruments Precision Lowest Cost Isolation Amplifier Original PDF
    ISO122JPE4 Texas Instruments Precision Lowest Cost Isolation Amplifier 8-PDIP -25 to 85 Original PDF
    ISO122JPE4 Texas Instruments ISO122 - Precision Lowest Cost Isolation Amplifier 8-PDIP -25 to 85 Original PDF
    ISO122JU Burr-Brown Dual Monolithic CMOS 12-Bit Multiplying Digital-to-Analog Converters Original PDF
    ISO122JU Burr-Brown Precision Lowest Cost ISOLATION AMPLIFIER Original PDF
    ISO122JU Texas Instruments Precision Lowest Cost Isolation Amplifier 8-SO -25 to 85 Original PDF
    ISO122JU Texas Instruments Precision Lowest Cost IIsolation Amplifier Original PDF
    ISO122JU Texas Instruments ISO122 - Precision Lowest Cost Isolation Amplifier 8-SOIC -25 to 85 Original PDF
    ISO122JU/1K Burr-Brown Precision Lowest Cost ISOLATION AMPLIFIER Original PDF
    ISO122JU_1K Burr-Brown Dual Monolithic CMOS 12-Bit Multiplying Digital-to-Analog Converters Original PDF
    ISO122JU/1K Texas Instruments Precision Lowest Cost Isolation Amplifier 8-SO -25 to 85 Original PDF
    ISO122JU/1K Texas Instruments ISO122 - Precision Lowest Cost Isolation Amplifier 8-SOIC -25 to 85 Original PDF
    ISO122JU/1KE4 Texas Instruments Precision Lowest Cost Isolation Amplifier 8-SO -25 to 85 Original PDF

    ISO122 Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    MPY100

    Abstract: 1N4148 PWS740 free transistor data base book A.Z
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 MPY100 1N4148 PWS740 free transistor data base book A.Z PDF

    PWS740

    Abstract: HPR117
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 HPR117 PDF

    ISO122P

    Abstract: ISO122 PWS740 pt100 multiplexer ISO122U ISO122JP ISO122JU XTR101 IN4689
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 AB-024. HPR117 ISO122P ISO122P PWS740 pt100 multiplexer ISO122U ISO122JP ISO122JU XTR101 IN4689 PDF

    PWS740

    Abstract: ISO122P pt100 multiplexer ISO122 ISO122JP ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 ISO122P pt100 multiplexer ISO122JP ISO122U PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    PWS740-1

    Abstract: ISO122P AB-024 PWS740 ISO122 ISO122JP ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740-1 ISO122P AB-024 PWS740 ISO122JP ISO122U PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    loop powered 4-20ma signal isolator

    Abstract: "Isolation Amplifier" 1N4148-1 PWS740 AMP MODU .25 signal conditioning circuit for pt100 circuit diagram bridge transducer 4-20ma PWS740-3 "Isolation Amplifier" 4-20ma ac voltage regulator using SCR circuit diagram
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 loop powered 4-20ma signal isolator "Isolation Amplifier" 1N4148-1 PWS740 AMP MODU .25 signal conditioning circuit for pt100 circuit diagram bridge transducer 4-20ma PWS740-3 "Isolation Amplifier" 4-20ma ac voltage regulator using SCR circuit diagram PDF

    ISO122P

    Abstract: pws740-3 PWS740 Amplifier k thermocouple texas pt100 multiplexer PT100 Thermocouple Amplifier ISO122 ISO122JP ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 ISO122P pws740-3 PWS740 Amplifier k thermocouple texas pt100 multiplexer PT100 Thermocouple Amplifier ISO122JP ISO122U PDF

    PWS740

    Abstract: ISO122 ISO122JP ISO122P ISO122U 10k102
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 ISO122JP ISO122P ISO122U 10k102 PDF

    "Isolation Amplifier" ecg

    Abstract: ISO122 ISO122 Application MORNSUN ecg circuit schematic ECG isolation amplifier "Isolation Amplifier" ISO ecg INA115 OP27
    Text: ECG PREAMPLIFIER CIRCUIT APPLICATION DC-DC CONVERTR Vin +Vo C1 DC GND DC C2 0V C3 -Vo +15V Human +12V :; R RA LA LA IN- ISO 122P INA115 Uo To following circuit IN+ -12V RL RL - + OP27 FEATURES a. As schematic above, this is a ECG examination circuit including a ISO122 and INA115. This circuit


    Original
    INA115 ISO122 INA115. /-15V. "Isolation Amplifier" ecg ISO122 Application MORNSUN ecg circuit schematic ECG isolation amplifier "Isolation Amplifier" ISO ecg INA115 OP27 PDF

    ISO122JP

    Abstract: PWS740 Texas instruments ISO122 ISO122 ISO122P ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 ISO122JP PWS740 Texas instruments ISO122 ISO122P ISO122U PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    pt100 spice model

    Abstract: SBOA023 4-20ma spice PWS740 "Isolation Amplifier" 4-20ma ISO122 Application Isolated 4-20ma
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 ISO122JP ISO122JU ISO122JU/1K ISO122P pt100 spice model SBOA023 4-20ma spice PWS740 "Isolation Amplifier" 4-20ma ISO122 Application Isolated 4-20ma PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    PWS740-1

    Abstract: PWS740 ISO122 ISO122JP ISO122JU ISO122P ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 5M-1982. PWS740-1 PWS740 ISO122JP ISO122JU ISO122P ISO122U PDF

    PWS740

    Abstract: No abstract text available
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 PDF

    pws740-3

    Abstract: pws740-1 "Isolation Amplifier" 4-20ma ISO122 Application PWS740 INA101 mpy100 datasheet pt100 multiplexer PT100 Thermocouple Amplifier ISO122
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 pws740-3 pws740-1 "Isolation Amplifier" 4-20ma ISO122 Application PWS740 INA101 mpy100 datasheet pt100 multiplexer PT100 Thermocouple Amplifier PDF

    pt100 multiplexer

    Abstract: PWS740 ISO122 ISO122JP ISO122JU ISO122P ISO122U 4-20mA loop power isolator PT100 Thermocouple Amplifier theory on Isolation Amplifier
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 ISO122P AB-024. HPR117 pt100 multiplexer PWS740 ISO122JP ISO122JU ISO122P ISO122U 4-20mA loop power isolator PT100 Thermocouple Amplifier theory on Isolation Amplifier PDF

    ISO122JU

    Abstract: PWS740 ISO122 ISO122JP ISO122P ISO122U ISO122 Application
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 ISO122JU PWS740 ISO122JP ISO122P ISO122U ISO122 Application PDF

    PWS740

    Abstract: ISO122 ISO122JP ISO122P ISO122U
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PWS740 ISO122JP ISO122P ISO122U PDF

    PT100 bridge

    Abstract: signal conditioning circuit for pt100 PWS740 pt100 multiplexer PWS740-3 Texas instruments ISO122 weight transducer 4-20ma ISO122 ISO122JP ISO122P
    Text: ISO122 Precision Lowest Cost ISOLATION AMPLIFIER FEATURES APPLICATIONS ● 100% TESTED FOR HIGH-VOLTAGE BREAKDOWN ● INDUSTRIAL PROCESS CONTROL: Transducer Isolator, Isolator for Thermocouples, RTDs, Pressure Bridges, and Flow Meters, 4mA to 20mA Loop Isolation


    Original
    ISO122 1500Vrms 140dB 16-PIN 28-LEAD ISO122 PT100 bridge signal conditioning circuit for pt100 PWS740 pt100 multiplexer PWS740-3 Texas instruments ISO122 weight transducer 4-20ma ISO122JP ISO122P PDF