LT1208CS8#PBF

LT1208CS8#PBF Application Field and Working Principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The LT1208CS8#PBF is an American Microsemi Corporation product, which is an industrial class instrumentation amplifier with a high performance, rail-to-rail output voltage.

The operating voltage of the device is from 4.2V to 5.5V, and its output voltage can reach 1.8V to 4.2V, adopting the current source bipolar transistor output stage structure. The product can open the loop and adjust gain, and the gain adjustment range is 0.2V/V to 10V/V. The product is suitable for bioelectrical signal amplification, data acquisition and transmission, and low input common noise amplifier.

The LT1208CS8#PBF can be used as an instrumentation amplifier. The instrument amplifier is an amplifier designed to boost weak signal input, combining high input impedance to avoid interaction between different channels, adjustable gain, and a linear phase response. The beneficial characteristics of instrumentation amplifiers make them ideal for use in control, measurement, and monitoring operations where measurements of small signals must be made with extreme precision.

The working principle of the LT1208CS8#PBF instrumentation amplifier can be divided into two parts. The first part is the online preference network, which is used to adjust the gain of the instrumentation amplifier. The second part is the differential amplifier, which is the core part of the amplifier, which can amplify the weak input signals. After the input signal is amplified, the output signal is linear and non-inverted through the output amplifier.

The LT1208CS8#PBF instrumentation amplifier has a maximum operating temperature of 125℃, a simplified interface design, and low power consumption. It has a low input offset voltage of 7mV, a low input bias current of 2nA and a high open loop voltage gain of up to 1MV/V. Therefore, it enhances the robustness and accuracy of the data acquisition, making it suitable for the production of various sensors, medical equipment and analog/digital converter (ADC) applications in the market.