TLE2021AIP

Voltage - Input Offset:	80µV
Base Part Number:	TLE2021A
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	4 V ~ 40 V, ±2 V ~ 20 V
Current - Output / Channel:	20mA
Current - Supply:	240µA
Series:	Excalibur™
Current - Input Bias:	25nA
Gain Bandwidth Product:	1.7MHz
Slew Rate:	0.65 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsInstrumentation amplifiers are an important part of electronic instrumentation and are used in precision measurement and control applications. They are designed to simultaneously detect, amplify and process high-impedance and low-power signals. By employing special design techniques, instrumentation amplifiers (INAs) overcome the limitations of traditional operational amplifier (op-amp) configuration.The architecture of a typical INA comprises two or more op-amps configuration in a systematic way. The first stage is a differential input stage, where two input terminals referred to as the pair A&B form the differential input. The second stage of the INA is a gain or buffer stage, where two outputs O1 & O2 and two feedback signals FB1 & FB2 are generated. O1 and O2 are commonly referred to as non inverting and inverting output respectively. The third stage is an output stage, which is typically a high-impedance follower stage, isolated from the main amplifier circuit and provides an output voltage proportional to the generated output of the first two stages.Many INA applications require low noise amplification, high stability and accurate gain control. The INA must be carefully designed to ensure that all the required parameters are met. The input impedance of an INA is usually much higher than that of a standard op-amp and is typically greater than 10KΩ. The gain is typically adjustable through a single control pin in the form of a Variable Gain Amplifier (VGA) or TTL logic inputs.INAs are used in various application fields such as medical instrumentation, automotive, aerospace, manufacturing and industrial process control. They are commonly used as signal conditioners in analog-to-digital converters and analog signal processing systems. In automotive applications, instrumentation amplifiers are used as safety sensors, to detect possible vehicle failure or malfunction. In aerospace systems, they are used to efficiently measure and amplify onboard antennas signals and monitor their parameters. Similarly, in medical instrumentation, they are used to filter signals from various medical imaging devices such as X-ray machines, magnetic resonance imaging scanners and ultrasound detectors.One of the most important features of INAs is their ability to provide high gain linearity. This is essential to ensure that the amplifier is able to accurately amplify low frequency and low power signals, without introducing any distortion or noise in the output signal. This is accomplished by employing dedicated circuitry, such as feedback loops and compensation networks, that ensure a linear response over the entire amplitude range of the signal. It is also essential to ensure that the INA can accurately handle dynamic signals with high rates of change.In addition, INAs are typically designed for low noise operation and for low power consumption. The input-referred noise will typically be lower than 10 nV/√Hz at 1kHz and higher gains, while the total power consumption will usually be larger than 10mW at 70dB gain. To achieve these kinds of performance levels, special care must be taken in the design of the INA to ensure proper shielding and grounding, and to minimize the number of components used.The TLE2021AI is a high performance Instrumentation Amplifier designed to maximize user flexibility and to minimize design complexity. It incorporates Voltage Programme Gain Control (VPGC) and Internal Gain Setting (IGS) technology to provide the highest levels of gain accuracy and noise performance. It is available in a wide range of gains from 0dB to 70dB and is capable of handling input signals from 0V to 7V. The TLE2021AI also features an integrated temperature compensation circuit which provides a stable gain over the entire operating temperature range. The TLE2021AI is ideal for precision measurements and control applications.

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