LT1013DN8#PBF

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

For applications that require precision amplification of low-level analog signals, LT1013DN8#PBF is the ideal choice. This device is a dual high-precision CMOS instrumentation amplifier with a low offset voltage and a typical offset voltage drift of less than 0.5µV/°C. The LT1013DN8#PBF’s specific feature which makes it attractive for high-precision analog applications, includes a wide supply voltage range up to 36V. This dual-channel device features a rail-to-rail common-mode input, a rail-to-rail common-mode output, and a very low power consumption.

The excellent performance of the LT1013DN8#PBF makes it suitable for a variety of analog applications such as strain gauges, load cells, weigh scales, motor control, battery-powered systems, servo systems, transducer conditioning, and temperature sensing. The rail-to-rail output enables operation in noisy environments, while its very low offset drift—0.5µV/°C—makes it especially suitable for precision measurement applications.

Working Principle of LT1013DN8#PBF

The LT1013DN8#PBF is an uncommon type of amplifier, combining the properties of a conventional amplifier with those of a buffer amplifier. Basically, the LT1013DN8#PBF contains two high-precision gain blocks, two gain set resistors, a dynamic error cancellation network, and a CMOS output stage. Each of the two gain blocks is composed of a differential pair of input transistors and two gain set resistors. This key feature makes the LT1013DN8#PBF extremely accurate, with a very low offset voltage and a typical offset voltage drift less than 0.5μV/°C.

Moreover, the rail-to-rail common-mode input range of the LT1013DN8#PBF makes it ideal for applications where the input signal swings near the supplies. The rail-to-rail output range makes it possible to use the amplifier in noisy environments, while the low power consumption makes it attractive for battery-powered systems. The offset voltage of the device can be trimmed with the external trim circuit, allowing the user to adjust the amplifier’s gain to the desired value via a single gain reduction resistor. This single trimmer is located on the side of the device, making it easily accessible.

Conclusion

The LT1013DN8#PBF is a dual high-precision CMOS instrumentation amplifier with excellent performance characteristics. It is ideal for use in noisy environments, and its low power consumption makes it an attractive choice for battery-powered applications. The rail-to-rail input and output ranges make it suitable for low-level signals and extend its applicability to new and innovative applications. Furthermore, its low offset voltage drift makes it especially ideal for high-precision analog applications.

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