OPA348AID

Voltage - Input Offset:	1mV
Base Part Number:	OPA348
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.1 V ~ 5.5 V
Current - Output / Channel:	10mA
Current - Supply:	45µA
Series:	--
Current - Input Bias:	0.5pA
Gain Bandwidth Product:	1MHz
Slew Rate:	0.5 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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The OPA348 is a precision single operational amplifier with very low input offset voltage that provides high performance in instrumentation and precision signal conditioning applications. It is the most versatile amplifier in the OPA family, with features like low noise and high bandwidth, low input offset voltage, low supply current and stable long-term operation.The device offers two different types of operation: single-ended and differential. The single-ended configuration is optimized for signal conditioning applications that require low distortion, while the differential configuration is designed for applications that demand higher signal amplification.The OPA348 is ideal for signal conditioning applications such as signal amplification, amplifier offset adjustment, voltage to current conversion, signal filtering, signal linearization and sensor signal conditioning. It is a low cost solution for signal conditioning as it does not require external components for proper operation and its wide power supply range allows for operation in both single and dual supply systems.The OPA348 operates on a single supply voltage, typically 5V DC. It requires a power supply with a current rating of less than 10mA. The device is available in a variety of packages, including the 8-lead mini-DIP, the SOIC-8, the TO-99 and the micro-DIP packages.The key features of the OPA348 include: low quiescent power supply current, low input offset voltage, wide bandwidth, high slew rate, and rail-to-rail output. The OPA348 also has high power-supply rejection ratio (PSRR), high common mode and differential mode rejection ratio (CMRR, DMRR) and high-input impedance.The operating principle of the OPA348 is that it is a single-ended amplifier, which means that the input is accepted by one input terminal and the output is provided by one output terminal. The OPA348 consists of an input stage, a differential amplifier/correction stage, an output stage and a power supply.The input stage consists of a pair of cascaded FET devices, and is designed to reduce the input noise and provide high input impedance. The differential amplifier/correction stage consists of two cascaded differential amplifiers and a variable gain correction stage. This stage is designed to reduce the offset voltage, improve the linearity, and increase the gain. The output stage is a direct coupled follower stage with a high output current capability, and is designed to provide a rail-to-rail output.In conclusion, the OPA348 is an ideal amplifier for instrumentation and precision signal conditioning applications due to its low input offset voltage, low noise, high accuracy, and low power consumption. Its wide power supply range allows for operation in both single and dual supply systems. Its features such as low input offset voltage, wide bandwidth, high slew rate, rail-to-rail output, and high power-supply rejection ratio make it an excellent choice for low cost, high performance, and consistent signal conditioning measurements.

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