OPA241UAG4

Voltage - Input Offset:	100µV
Base Part Number:	OPA241
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	2.7 V ~ 36 V, ±1.35 V ~ 18 V
Current - Output / Channel:	21mA
Current - Supply:	27µA
Series:	--
Current - Input Bias:	4nA
Gain Bandwidth Product:	35kHz
Slew Rate:	0.01 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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OPA241UAG4 Application Field and Working Principle

The OPA241UAG4 device is an ultra-low power CMOS operational amplifier. It is optimized for a wide range of general-purpose instrumentation and isolated signal processing applications. Below we shall discuss the application fields and working principle of this device.

Application Field

The OPA241UAG4 device is an ideal solution for single supply, low power, instrumentation, transducer, industrial, process control and medical applications. The high open-loop gain, wide gain-bandwidth, fast slewing and low noise characteristics makes it ideal for use as part of a low frequency bridge circuit, as a gain-setting amplifier, as a differential-to-single-ended converter or as a sample-and-hold circuit.It is also suitable for use in low voltage, low power applications where its low quiescent current and low input offset voltage make it the ideal choice. Additionally, the device has sufficiently high output current capability to drive capacitive loads and drive active filters.

Working Principle

The OPA241UAG4 device is an ultra-low power CMOS operational amplifier. It combines an amplifier and a comparator circuit on a single monolithic integrated circuit. The amplifier section consists of two stages, a buffer, and an output stage. The buffer stage provides a low input resistance and is followed by a differential amplifier stage with programmable gain.The output stage provides high output current and fast slewing. The comparator section consists of a hysteresis comparator and a window comparator. The hysteresis comparator provides excellent noise immunity and wide operating temperature range, while the window comparator provides hysteresis range adjustable via a single pin.The device is powered with a single supply voltage of 2.7 V and provides an output offset voltage of 3 mV max, an input offset voltage of 10 μV max, and an input bias current of 10 pA max. The quiescent current is typically 25 μA and the supply current is typically 50 μA.The OPA241UAG4 device is designed for a wide range of general-purpose instrumentation and isolated signal processing applications. It provides the user with the advantages of low quiescent current, low input offset voltage, wide gain-bandwidth, fast slewing rate and low noise characteristics. Its space-saving DIP (Dual In-line Package) and small SOT23 packages make it an ideal choice for applications in process control and medical applications.

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