AD595ADZ

AD595 is a complete instrumentation amplifier and type K thermocouple cold junction compensator on a monolithic chip. It combines an ice point reference with a recalibrated amplifier to produce a high level output directly from a thermocouple signal. Pin-strapping options allow it to be used as a linear amplifier-compensator or as a switched output setpoint controller using either fixed or remote setpoint control. It can be used to amplify its compensation voltage directly, thereby converting it to a stand-alone Celsius transducer with a low impedance voltage output. It includes a thermocouple failure alarm that indicates if one or both thermocouple leads become open. The alarm output has a flexible format which includes TTL drive capability. It can be powered from a single ended supply and by including a negative supply, temperatures below 0°C can be measured.

• Can be used with type T thermocouple inputs, built-in ice point compensation
• 40.44µV/°C typical input offset voltage (temperature in °C, 25°C)
• 10mV/V minimum common-mode sensitivity – RTO (+25°C and VS = 5V)
• 10mV/V maximum power supply sensitivity – RTO (+25°C and VS = 5V)
• Thermocouple failure alarm, laser wafer trimmed to 18°C calibration accuracy
• Setpoint mode operation, self-contained celsius thermometer operation
• High impedance differential input, side-brazed DIP or low cost cerdip
• Differential input range from -10 to +50mV (+25°C and VS = 5V)
• 160µA typical quiescent current (+VS, no load, +25°C and VS = 5V)
• TO-116 package, operating temperature range from -55 to +125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party