AD datasheet, AD pdf, AD data sheet, datasheet, data sheet, pdf, Analog Devices, Monolithic Thermocouple Amplifier with Cold Junction. AD Monolithic Thermocouple Amplifier With Cold Junction Compensation Pretrimmed For Type J Thermocouples FEATURES Pretrimmed for Type (AD) . higher accuracy, or a lower ambient operating temperature is required, either the AD (J thermocouple) or AD (K thermocouple) should be considered.

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Not Recommended for New Designs. Model The model number is a specific version of a generic that can be purchased or sampled. Any other suggestions would be most helpful, thank you. Most orders ship within 48 hours of this date. Price Rohs Orders from Analog Devices. It is important to note the scheduled dock date on the order entry screen. I do not understand why there is a lower cutoff limit of mV. The AD is a 14 pin IC, designed specifically as a thermocouple amplifier.

Construction The circuit is easy to ad55 on a small piece of veroboard. The device cold junction compensates and amplifies a type J or K thermocouple input to derive an internal signal proportional to temperature. Indicates the packing option of the model Tube, Reel, Tray, etc. The package for this IC i.

McBee Audio Labs

Due to environmental concerns, ADI offers many of our products in lead-free versions. International prices may differ due to local duties, taxes, fees and exchange rates. ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability.

Once I tied pin 1 to 0V as in myschematic everything worked fine.


This is especially noticeable with higher output resistance signals. This is the date Analog Devices, Inc.

AD Datasheet and Product Info | Analog Devices

The alarm output has a flexible format which includes TTL drive capability. Have you bypassed the power supply pin 11 to ground with a capacitor?

Measuring the Tiny Signal. Message 10 of The model has not been released to general production, but samples may be available. Message 8 of Message Edited by mdzz on The circuit is easy to dtaasheet on a small piece datsheet veroboard. Fluctuation of temperature reading from AD 21 week s ago in Instrumentation Amplifiers.

Subscribe to our mailing datasheeet. The model has been scheduled for obsolescence, but may still be purchased for a limited time. Model The model number is a specific version of a generic that can be purchased or sampled. Other models listed in the table may still be available if they have a status that is not obsolete.

Setting the Common Mode Voltage.

If you heat the chip, do you see the output increase? 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. The various ranges specified are as follows: I’m almost running out of ideas and I swear my lab partner and I was using this ad559 setup just the other xatasheet and got the correct results. I got very erratic readings, or nothing at all.

Not Recommended for New Designs. Have you done a “sanity check” and just tied the inverting and non-inverting inputs of your together and then read the input remember that you have to re-configure the to do differential input?


For detailed drawings and chemical composition please consult our Package Site.

AD thermocouple amplifier as a temperature probe – McBee Audio Labs

Other models listed in the table may still be available if they have a status that is not obsolete. Setting the Common Mode Voltage. Sorry for the late reply, but this issue has now surfaced again with me doing the same testing. I could have used a jar of melting ice too. An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board. The problem I have is that there is always an offset from what the appropriate voltage signal should be.

This is the acceptable operating range of the device. This is explained in the manual, but the summary is that the design uses resistors to bias the open-circuit voltage on the up to around the middle of the conversion range so that differential signals can be measured.

This can be one of 4 stages: The model is currently being produced, and generally available for purchase and sampling. For more information about lead-free parts, please consult our Pb Lead free information page.

The Sample button will be displayed if a model is available for web samples. The AD is precalibrated by laser wafer trimming to match the characteristic of type J iron-constantan thermocouples and the AD is laser trimmed for type K chromel-alumel inputs.