OPA3691IDR

Current - Input Bias:	15µA
Base Part Number:	OPA3691
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	5 V ~ 12 V, ±2.5 V ~ 6 V
Current - Output / Channel:	190mA
Current - Supply:	15.3mA
Voltage - Input Offset:	800µV
Series:	--
-3db Bandwidth:	280MHz
Gain Bandwidth Product:	2GHz
Slew Rate:	2100 V/µs
Output Type:	--
Number of Circuits:	3
Amplifier Type:	Current Feedback
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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OPA3691IDR Application Field and Working Principle

OPA3691IDR is a stereo differential audio power amplifier, which is a part of Texas Instruments\' low-voltage, low-power operational amplifiers (op-amps). These amplifiers are designed to provide high fidelity sound and accurate signal amplification. The OPA3691IDR is an integrated circuit that has a wide range of applications, including as an audio amplifier, instrument amplifier, or as a general-purpose buffer/low power amplifier.The OPA3691IDR’s wide range of applications stem from its architecture: it is a two-stage, fully differential, op-amp with dual outputs. This architecture provides the versatility necessary for a wide range of applications, including high fidelity audio systems, instrument amplifiers, and general-purpose amplification. Furthermore, the OPA3691IDR is capable of delivering up to 500mW of output power per channel with a supply voltage of 2.6V. This makes it suitable for a variety of audio applications.The OPA3691IDR also features a wide frequency range of 0.01Hz - 150kHz and a slew rate of 13V/μs. The amplifier is also capable of providing an output voltage swing of ±13V while consuming only 90mA of current. In addition, the amplifier is fully integrated and includes protection circuitry, making it easier to use.The OPA3691IDR’s working principle can be broken down into two major parts: input stage and output stage. The input stage of the OPA3691IDR consists of two input amplifiers connected in differential configuration. The differential inputs amplify the input signal and then apply the amplified signal to the power stage. The power stage consists of two wide-band amplifiers connected in parallel and is responsible for driving the output of the OPA3691IDR. The output of the power stage is then amplified and applied to the output stage of the OPA3691IDR. The output stage amplifies the signal and then delivers it to the load.The OPA3691IDR is an ideal choice for a wide range of applications due to its wide frequency range, low power consumption, and integrated protection features. It is suitable for use in high fidelity audio systems, instrument amplifiers, and general-purpose amplification. Furthermore, its two-stage, fully differential amplifiers provide flexibility and accuracy for a variety of applications.

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