TLV2773IDR

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The TLV2773IDR is a high precision, low-cost, single channel instrumentation amplifier from Texas Instruments. The device is designed to provide low noise, accurate DC amplification and low drift over temperature, making it suitable for a range of applications, including industrial process control, instrumentation, and automotive.

Features

• Single-Channel Instrumentation Amplifier
• Low Noise: 0.18 μVrms
• Low Drift: 2.3 μV/°C
• Low Offset Voltage: 8 μV
• Low Input Bias Current: 10 pA
• Wide Supply Range: 3V to 32V
• Gain Configurable from 10 to 10 000
• Internal High-Speed Protection Diodes

Functionality

The TLV2773IDR is a single-channel instrumentation amplifier that provides low noise, accurate and low-drift DC amplification. The gain of the amplifier is configurable from 10 to 10 000 and is set using a single external resistor. The device offers excellent common-mode rejection, low input bias current, and low input offset voltage. Additionally, the amplifier can operate over a wide supply range of 3V to 32V. The device offers a slew rate of 2.5V/μs and a small-signal bandwidth of 5.5MHz.

Applications

• Sensor Signal Conditioning
• Medical Instrumentation
• Industrial Process Control
• Test and Measurement Equipment
• Automotive Electronics

Working Principle

The amplifier consists of two stages, an input stage and a gain stage. The input stage consists of two closely-matched transistors, a pair of current sources, and various biasing components. The output stage consists of another two-transistor pair and a pair of current sources. The combination of the two stages provides for an amplification of the input signal without introducing significant phase shift.

The output stage is connected to the input stage via the current sources, which help to ensure low noise and low offset performance. The current sources in the input stage provide input bias current cancellation, while the current sources in the output stage provide output bias current cancellation.

The TLV2773IDR is a low-cost, low-noise, low-drift device that can be used in a variety of applications, including signal monitoring and processing, medical instrumentation, and industrial process control.

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