Instrumentation amplifiers, which are differential voltage amplifiers with high impedance at each input and a fixed gain, are widely used in various electronic equipment. The typical implementation of instrumentation amplifiers by connecting three operational amplifiers does not provide high voltage gain stability over a wide range of input common-mode signals, especially at high gain. To solve this problem, the design and circuitry features of precision instrumentation amplifiers from Analog Devices were studied. Based on the analysis results, the main blocks of instrumentation amplifier microcircuits with a single-supply voltage using bipolar transistors and junction field-effect transistors were developed. The article presents electrical schematic diagrams and circuit simulation results for all units, demonstrating the capability to program various combinations of parameters.

1. Dvornikov O., Tchekhovski V., Popov A. (2025) Design of Bipolar Analog Basic Matrix Crystals. Electronic Components. (1), 48–53 (in Russian).

2. Dvornikov O., Tchekhovski V., Popov A. (2025) Development and Application of High-Power Analog Basic Matrix Crystals in the Design of Power Analog Integrated Circuits. Electronic Components. (5), 14–20 (in Russian).

3. Dvornikov O. V., Tchekhovski V. A. (2025) Design of a Set of Analog Microcircuits for Processing Signals from High-Resistance Sensors. Devices and Methods of Measurements. 16 (4), 333–343. DOI: 10.21122/2220-9506-2025-16-4-333-343 (in Russian).

4. Tietze W., Schenk K. (2007) Semiconductor Circuitry. Moscow, DMK Press Publ. (in Russian).

5. Fonderie J., Maris M. M., Schnitger E. J., Huijsing J. H. (1989) 1-V Operational Amplifier with Rail-to-Rail Input and Output Ranges. IEEE Journal of Solid-State Circuits. 24 (6), 1551–1559. DOI: 10.1109/4.44990.

6. Vyne R. L., Petty T. D., Koda R., Susak D. M. (1992) A Quad Low Voltage Rail-to-Rail Operational Amplifier. Proceedings of the 1992 Bipolar/BiCMOS Circuits and Technology Meeting, Minneapolis, MN, USA. 242–245. DOI: 10.1109/BIPOL.1992.274041.

7. Bowers D. F. (1987) A 20-/spl mu/W Precision Operational Amplifier. IEEE Journal of Solid-State Circuits. 22 (3), 322–329. DOI: 10.1109/JSSC.1987.1052728.

8. Wurcer S. A., Counts L. W. (1982) A Programmable Instrumentation Amplifier for 12-bit Resolution Systems. IEEE Journal of Solid-State Circuits. 17 (6), 1102–1111. DOI: 10.1109/JSSC.1982.1051867.

9. Close J. P., Santos F. (1993) A JFET Input Single Supply Operational Amplifier with Rail-to-Rail Output. 1993 Proceedings of IEEE Bipolar/BiCMOS Circuits and Technology Meeting, Minneapolis, MN, USA. 149–152. DOI: 10.1109/BIPOL.1993.617487.