OPA140AID

OPA140AID Application Field And Working Principle

The OPA140AID is a high-precision operational amplifier that is part of the linear instrumentation amplifiers, OP amps, and buffer amplifiers product families from the Texas Instruments manufacturing company. It offers significant benefits and increases the versatility of applications in medical, industrial, instrumentation, test and measurement, as well as audio and video systems.

Features

• Modern rail-to-rail output swing feature.
• Controls its output fully to ground.
• Crossover distortion cancellation.
• Improved power-supply-rejection ratio.
• Operation over multiple power supply range.

Specifications

• Gain bandwidth product of 1.2MHz.
• Input offset voltage of 250μV.
• Supply voltage range of 2.7V to 5.5V.
• Gain drift of 0.00125V/°C.
• Current drain of 2.4mA.

Applications

• Audio signal amplification.
• Test and measurement instrumentation.
• Industrial process control.
• Analytical instrumentation.
• Medical instrumentation.

Working Principle

The OPA140AID is an OP amp that exhibits outstanding performance specifications including the lowest offset voltage, CMRR, and TCVOS of any amplifier in its family. It is designed to be used in closed loop circuits and offers an amazing 9Vps slew-rate. It also offers superior voltage noise and offset drift characteristics.

The OPA140AID utilizes a unique structure and combination of Darlington transistors and floating-gate transistors to improve the noise rejection and feedback stability. These specialized transistors provide outstanding low distortion and superior signal-to-noise ratio. Additionally, the OPA140AID includes an Internal Input Offset voltage service pin that allows for preconditioning or adjustment of the output offset.

The OPA140AID is capable of operating on single supply, split supply, and bipolar supplies. It additionally offers two-channel inputs for increased performance. The advanced design also helps in maximizing and prolonging the operational life of the device.