BA2904WFV-E2

Current - Input Bias:	20nA
Supplier Device Package:	8-SSOPB
Package / Case:	8-LSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	3 V ~ 32 V, ±1.5 V ~ 16 V
Current - Output / Channel:	30mA
Current - Supply:	700µA
Voltage - Input Offset:	2mV
Series:	--
Gain Bandwidth Product:	500kHz
Slew Rate:	0.2 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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.BA2904WFV-E2 Application Field and Working PrincipleBA2904WFV-E2 is classified as a Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps type of device. It is a general purpose Operational Amplifier designed for a wide range of consumer, industrial and automotive uses.Features:- Low Distortion and Noise- High linearity- High Current Output (on most packages)- High Bandwidth (100KHz typical) - Low Supply Current - Wide Temperature Range (-55°C to +150°C) - Easy to Use - Low Offset Voltage - Low Cost - Technology-Independent PerformanceApplications:BA2904WFV-E2 can be used in a wide range of applications including:- Automotive - Audio - Measuring Instruments- Instrumentation and Control- Industrial Process Control - Sensor and actuator systems- High Speed Amplifiers- High Input Impedance Buffers- High Gain DC Amplifiers - Sample and Hold Circuits - Active Filtering - Low Noise/High Gain Amplifiers - Power Monitoring and ProtectionWorking Principle:BA2904WFV-E2 is an operational amplifier with two inputs and one output. The inputs are designated as non-inverting (positive) and inverting (negative). The output is the difference between the two inputs multiplied by a gain which is specified in the operational amplifier’s datasheet. The gain is typically set with a resistive divider between the two input pins.The non-inverting input of the operational amplifier is biased by a bias voltage (Vb) which is usually provided either internally within the operational amplifier or externally. The bias voltage is provided in order to ‘push’ the input voltages to the midpoint of the supply rails to keep the output from saturating and distorting due to excessive input voltage.In order to obtain the desired gain or magnitude of the output voltage, the gain of the operational amplifier must be determined. The gain is calculated by dividing the feedback resistance (Rf) by the input resistance (Ri). The output from the operational amplifier is a replica of the difference between the two inputs multiplied by the gain. In many applications, the output is then fed into another device or circuit. For example, it can be connected to an ADC for analog to digital conversion, a filter, a relay, a light emitting diode (LED) or many other devices.In conclusion, BA2904WFV-E2 is a general purpose operational amplifier which is widely used in consumer, industrial and automotive applications. It possesses low distortion and noise and a wide range of features making it suitable for a range of uses and applications. The working principle is relatively simple and straightforward and the output is a difference between the two inputs multiplied by a gain which is determined by the input and feedback resistances.

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