LT1028CN8#PBF

Current - Input Bias:	30nA
Base Part Number:	LT1028
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 ~ 18 V
Current - Supply:	7.6mA
Voltage - Input Offset:	20µV
Series:	--
Gain Bandwidth Product:	75MHz
Slew Rate:	15 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 Amps

LT1028CN8#PBF is a bipolar high-performance operational amplifier specifically designed for instrumentation applications. It combines rail-to-rail input and output operation with a low offset voltage of typically 0.9mV, a very low offset drift, and a wide common mode range. The LT1028CN8#PBF is also internally protected from input voltages exceeding the supplies and available in industry standard SO-8 and SOT-23 packaging.

Basic Working Principle of LT1028CN8#PBF

The basic working principle of the LT1028CN8#PBF can be divided into three main stages, which are the input stage, amplifier stage, and output stage.1. Input Stage: The LT1028CN8#PBF input stage includes two independent, rail-to-rail CMOS input transistors, with each one functioning as a track-and-hold amplifier. The track-and-hold amplifier ensures a constant input signal as long as the input voltage is within the common mode range. The open-loop gain of the LT1028CN8#PBF is typically 100dB, resulting in a slew rate of 3V/us.2. Amplifier Stage: The output voltage of the input stage is fed to the amplifier stage. The amplifier stage consists of two high-voltage, current-feedback operational amplifiers. These operational amplifiers are designed for high-speed, high-gain applications. The operational amplifiers have a low noise floor with a clean frequency response.3. Output Stage: The output stage is responsible for converting the signal from the amplifier stage into a usable output voltage. The output stage includes an internal reference voltage, a low-offset-voltage output buffer, and a high-speed output stage. The low-offset buffer provides a low output voltage offset and high I/O impedance. The high-speed output stage is capable of driving capacitive loads.

Applications of LT1028CN8#PBF

LT1028CN8#PBF is suitable for a wide range of applications. Some of the most common applications include transducer amplification, peak detection, signal conditioning, bridge signal conditioning, analog-to-digital converter (ADC) buffering, voltage amplification, and gain staging. This device is also useful for precision signal scaling and signal translation processes.For transducer amplification applications, the LT1028CN8#PBF has a wide common mode range, allowing it to drive a wide range of load resistances. Additionally, the low offset voltage and low offset drift of the LT1028CN8#PBF make it an ideal amplifier for transducer signal conditioning. For peak detection applications, the LT1028CN8#PBF can be used to detect and measure signal peaks with a high degree of precision and accuracy. The LT1028CN8#PBF has a high-speed response time and low input bias current, which allows it to detect signal peaks quickly and accurately.For signal conditioning applications, the LT1028CN8#PBF provides a high-impedance, high-accuracy input buffer, allowing it to accurately and cleanly amplify low-level signals. Additionally, the low noise floor and clean frequency response of the LT1028CN8#PBF make it well suited for signal conditioning applications.For bridge signal conditioning applications, the LT1028CN8#PBF can be used to provide precise bridge signal conditioning signals with a minimum of noise. The high common mode range of the LT1028CN8#PBF allows it to drive a wide range of load resistances, and the low offset voltage and low offset drift make it suitable for precise bridge signal conditioning applications.For ADC buffering applications, the LT1028CN8#PBF has a low-impedance output stage, allowing it to drive a wide range of load resistances. Additionally, the low offset voltage and low offset drift make it an ideal amplifier for ADC buffering applications.For voltage amplification applications, the LT1028CN8#PBF provides a wide common mode range and a low noise floor, allowing it to provide a clean and precise amplified signal. The high-impedance input stage also makes the LT1028CN8#PBF an ideal amplifier for voltage amplification applications.Finally, the LT1028CN8#PBF is especially well-suited for gain staging applications. The high-impedance input stage and low-impedance output stage make the LT1028CN8#PBF an ideal amplifier for providing clean, precise, and high-gain signal amplification.

Conclusion

In conclusion, the LT1028CN8#PBF is a high-performance, rail-to-rail input and output bipolar operational amplifier designed for instrumentation applications. It offers a low offset voltage of typically 0.9mV, a low offset drift, and a wide common mode range. Its high-impedance input stage, low-offset voltage, and low-offset drift make it an excellent choice for transducer amplification, peak detection, signal conditioning, ADC buffering, voltage amplification, and gain staging applications. The LT1028CN8#PBF is available in industry standard SO-8 and SOT-23 packages, making it easy to integrate into existing designs.

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