ICL7652CPD+

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The ICL7652CPD+ transistor amplifier is an instrumentation amplifier designed for accurate, low-noise measurements in high-impedance sensing applications. The ICL7652CPD+ is a linear amplifier with differential inputs and a single-ended output, making it suitable for measuring extremely tiny voltages in high-impedance circuit designs. The ICL7652CPD+ is based on the proven ICL7660CPA and ICL7660CPD “micropower” amplifiers, but with improved performance and expanded features.

The ICL7652CPD+ is designed to offer superior accuracy, stability, and repeatability in dynamic impedance sensing applications, as found in bridge sensors such as strain gauges, thermistors, and pressure transducers. The ICL7652CPD+ provides differential inputs that feature high input impedance of 1 megohm and ± 8-volt common-mode rejection. The differential input features a wide 2-volt common-mode range, and the single-ended output has a high linearity and low power consumption.

The ICL7652CPD+ is designed to provide high accuracy in a wide range of environments, from low-noise industrial control systems to harsh industrial or automotive environments. Its large common-mode rejection range allows it to reject signals outside of the common-mode range, so it can be used in a variety of high-impedance sensing applications, such as strain gauges, thermistors, and pressure transducers. It is also an ideal amplifier for high-gain applications, such as high-frequency signal conditioning. The ICL7652CPD+ amplifies signals between 0.37V/µV and 78V/µV (as tested) and is capable of amplifying signals at frequencies up to 20MHz.

The ICL7652CPD+ is fabricated using an industry-standard CMOS process that allows for low supply voltage operation. The device features moderate power consumption, low distortion, and low noise levels. The high input impedance, low gain error, and low power consumption make it suitable for a variety of precision instrumentation, control, and sensor applications. The ICL7652CPD+ has an operating temperature range of -40°C to +125°C.

The ICL7652CPD+ is a highly integrated amplifier with wide dynamic range, low noise and low distortion. The amplifier’s input stage consists of two integrated input transistors. The ICL7652CPD+ uses high-impedance, low-noise input differential transistors that can withstand input transient signals of up to ±20V without saturation. The input stage is followed by an auto-zeroing stage that cancels out the offset voltages. The auto-zeroing stage also reduces the non-linearity distortion due to the input transistor bias currents. The ICL7652CPD+’s output stage is a single-ended output transistor which provides ±200µV of output voltage swing.

The performance of the ICL7652CPD+ is optimized for high-impedance sensing applications and its low-noise, low-power, and low-distortion characteristics make it ideal for instrumentation, control, and sensor applications. The ICL7652CPD+ is a versatile amplifier with a wide dynamic range, small size, low power consumption, and high linearity and accuracy. It is suitable for use in a variety of precision instrumentation and sensor applications.

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