TLE2021CPG4

Voltage - Input Offset:	150µV
Base Part Number:	TLE2021
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°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:	2MHz
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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TLE2021CPG4 Application Field and Working Principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The TLE2021CPG4 is a high-performance operational amplifier with a wide variety of applications. Essentially, it is the integration of a low-noise amplifier, level-shifter, current-mirror, and operational amplifier. This combination of functions provide a device suitable for numerous accurate applications with precise signal measurement, level shifting, and wide output dynamic range. It has been applied in a variety of market sectors, such as aerospace and automobile, medical and laboratory, test and measurement, and many other areas.

Overview

TLE2021CPG4 is an input buffer and zero-drift operational amplifier for precision applications requiring good linearity, high power supply rejection and low noise. It features wide input common mode range and low input bias current, making it more suitable for precise, high accuracy applications. Moreover, its large output voltage swing is suitable for precision measurement. The proprietary zero-drift technology uses a combination of advanced process innovations, such as integrated compensation, advanced architecture and manufacturing techniques, to achieve low noise and excellent input stability.

Working principle of TLE2021CPG4

TLE2021CPG4 has an input buffer stage and an operational amplifier, both of which are designed for precision application and to provide high power supply rejection and low noise. The zero-drift technology combines a proprietary advanced process, an advanced architecture and sophisticated manufacturing techniques to help achieve low noise and excellent input stability. The operational amplifier is designed to provide wide bandwidth, low input offset voltage, low input bias current and low input offset current. The input is fed into the buffer, which has an impedance of several hundred ohms. This helps reduce the loading of the signal source and ensures a high common-mode rejection ratio. The buffer consists of three layers: two cascode input stages, and a current mirror as the output stage. The cascode input stage consists of a differential pair of transistors with the load impedance provided by the current mirror. The transistors in the cascode input stage limit the input voltage swing, while the current mirror provides enhanced terminal output impedance. The current mirror is also used to provide gain and polarity compensation. The output stage comprises an operational amplifier with a buffered input, buffer output and load impedance. This ensures high closed-loop gain and wide power supply rejection ratio. The output of the buffer is fed into the op amp, which is designed to provide wide bandwidth and low noise.The op amp consists of a differential pair of transistors, with the load impedance provided by a current mirror. The current mirror provides gain and polarity compensation and reduces the input noise. It also provides enhanced thermal stability.

Conclusion

The TLE2021CPG4 is a high-performance operational amplifier with a wide variety of applications. Owing to its proprietary zero-drift technology, it can provide precise signal measurement, level shifting, and wide output dynamic range. Furthermore, its high power supply rejection ratio, low input bias current and wide bandwidth makes it suitable for precision, high accuracy applications. Its usage areas range from aerospace and automobile to medical and laboratory, test and measurement and many more.

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