LTK001ACN8#PBF

Sensor And Detector Interfaces Overview

The LTK001ACN8#PBF is a precision thermocouple amplifier kit manufactured by Analog Devices Inc. It integrates a matched amplifier (LTKA0x) and an LT1025 cold junction compensator in an 8-lead PDIP package. The device supports Type E, J, K, R, S, and T thermocouples with direct outputs of 60.9µV/°C (E), 51.7µV/°C (J), 40.6µV/°C (K, T), and 5.95µV/°C (R, S). It also provides a 10mV/°C output for arbitrary scaling. The A version guarantees an initial accuracy of 0.75°C at 25°C for Types E, J, K, and T. Operating on a single supply from 5V to –20V, it draws a typical supply current of 480µA. The amplifier features low offset voltage (<35µV) and extremely low input bias currents (<600pA).

Sensor And Detector Interfaces Feature Summary

• Integrated matched amplifier and cold junction compensator eliminates error summation.
• Direct analog outputs for standard thermocouple types including E, J, K, R, S, and T.
• Extremely low warmup drift due to separated functional blocks and low supply current.
• High impedance inputs allow use of external filters without degrading offset or drift.

Sensor And Detector Interfaces Applications

• Precision temperature measurement systems using Type K, J, or E thermocouples.
• Industrial process control requiring high accuracy over wide temperature ranges.
• Scientific instrumentation utilizing Type R or S thermocouples.
• Multi-channel data acquisition systems sharing a single compensator unit.

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature range. The CN8 suffix denotes an 8-lead PDIP package with a commercial operating range of 0°C to 70°C. Ensure compatibility with existing PCB footprints for the N8 package. Confirm that the A version meets the required initial accuracy specifications for the application.

Sensor And Detector Interfaces Selection Notes

Select the LTK001ACN8#PBF when high initial accuracy is critical for thermocouple applications. The A version offers superior initial accuracy compared to the standard C version. Consider the separate LTKA0x amplifiers if multiple channels share a single compensator to reduce system cost. Verify that the supply voltage range of 5V to –20V aligns with the system power architecture.

Sensor And Detector Interfaces Part Context

The LTK001 series consists of matched kits containing a specialized amplifier and the LT1025 cold junction compensator. This separation minimizes self-heating errors inherent in monolithic designs. The amplifier component is also available separately as LTKA0x for multi-channel configurations. The kit is designed to simplify the design of high-precision thermocouple interfaces by providing calibrated outputs.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. For higher accuracy with Type R and S thermocouples, the datasheet suggests using LTC1050 or LTC1052 operational amplifiers instead of the integrated amplifier to reduce offset error.