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ADC8495 - (ADC8494 - ADC8497) Precision Thermocouple Amplifiers

General Description

The AD8494/AD8495/AD8496/AD8497 are precision instrumentation amplifiers with thermocouple cold junction compensators on an integrated circuit.

They produce a high level (5 mV/°C) output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier.

Key Features

  • Low cost and easy to use Pretrimmed for J or K type thermocouples Internal cold junction compensation High impedance differential input Standalone 5 mV/°C thermometer Reference pin allows offset adjustment Thermocouple break detection Laser wafer trimmed to 1°C initial accuracy and 0.025°C/°C ambient temperature rejection Low power:.

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Datasheet Details

Part number ADC8495
Manufacturer Analog Devices
File Size 711.49 KB
Description (ADC8494 - ADC8497) Precision Thermocouple Amplifiers
Datasheet download datasheet ADC8495 Datasheet

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ADC8494 (ADC8494 - ADC8497) Precision Thermocouple Amplifiers
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Precision Thermocouple Amplifiers with Cold Junction Compensation AD8494/AD8495/AD8496/AD8497 FEATURES Low cost and easy to use Pretrimmed for J or K type thermocouples Internal cold junction compensation High impedance differential input Standalone 5 mV/°C thermometer Reference pin allows offset adjustment Thermocouple break detection Laser wafer trimmed to 1°C initial accuracy and 0.025°C/°C ambient temperature rejection Low power: <1 mW at VS = 5 V Wide power supply range Single supply: 2.7 V to 36 V Dual supply: ±2.7 V to ±18 V Small, 8-lead MSOP FUNCTIONAL BLOCK DIAGRAM REF +IN ESD AND OVP AD8494/AD8495/ AD8496/AD8497 A2 THERMOCOUPLE COLD JUNCTION COMPENSATION A3 OUT –IN 1MΩ ESD AND OVP A1 SENSE Figure 1.