OPA137UA

Voltage - Input Offset:	2.5mV
Base Part Number:	OPA137
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 (±):	4.5 V ~ 36 V, ±2.25 V ~ 18 V
Current - Output / Channel:	60mA
Current - Supply:	220µA
Series:	MicroAmplifier™
Current - Input Bias:	5pA
Gain Bandwidth Product:	1MHz
Slew Rate:	3.5 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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OPA137UA Application Field and Working PrincipleOPA137UA is a low-voltage, low-power operational amplifier (op-amp) manufactured by Texas Instruments. It is an instrumentation amplifier, buffer amplifier, and linear amplifier all rolled into one. The device employs two separate current-feedback op-amps, an inverting and a non-inverting amplifier, on a single integrated circuit.The OPA137UA is ideal for applications requiring a high slew rate, low distortion, and low power. It provides full-power bandwidths of 10MHz to 1GHz, depending on the power supply and loading. Its wide dynamic range, high output bias point, and very low noise make it suitable for many areas of instrumentation and automatic test equipment. The primary application of the OPA137UA is in transimpedance amplifiers (TIA). A TIA is an amplifier used to convert current signals into voltage signals with high input impedance. The OPA137UA\'s wide bandwidth makes it an excellent choice for these amplifiers, allowing them to accurately measure amplitudes in the sub-kHz to RF range. It is also used in audio applications due to its low distortion and noise floor.The OPA137UA\'s low voltage and power requirements make it an ideal choice for mobile and handheld electronic devices. It can be powered directly from two 3V or two 5V supplies, minimizing power consumption in portable instruments or battery-powered devices.The OPA137UA works on the basic principles of op-amp operation. It takes an input signal, usually a voltage, and amplifies it. The output is a much higher voltage than the input, depending on the type of amplifier. The gain of the amplifier is determined by the ratio of the resistors in the feedback circuit of the amplifier. The OPA137UA\'s two op-amps have separate feedback circuits, allowing for a wide variety of gains for each amplifier.The OPA137UA also features short-circuit protection, over temperature protection, and adjustable bias current. The adjustable bias current can be used in applications requiring high frequency stability. In summary, the OPA137UA is a versatile low voltage, low power op-amp. It offers exceptional bandwidth, low distortion, and low noise levels ideal for transimpedance amplifiers and audio applications. The adjustable bias current allows for high-stability operation and the short-circuit and over-temperature protection guarantee a reliable output. The OPA137UA is ideal for portable and handheld instruments due to its low power requirements and versatile gain range.

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