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  4. Power operational amplifier PA194/PA194A (Apex Microtechnology, Inc.)
Power operational amplifier PA194/PA194A-PA194
Power operational amplifier PA194/PA194A-PA194A
Power operational amplifier PA194/PA194A-Apex Microtechnology, Inc.

Power operational amplifier PA194/PA194A
Apex Microtechnology, Inc.

💻 Electronics & Electrical Use 🚀 Aerospace Industry Use 🏥 Medical Industry Use

Apex Microtechnology, Inc.'s Response Status

Response Rate

100.0%

Response Time

4.1hours

Very Fast Response

About This Product

■Features

・High voltage: 900V ・High speed: 2,100V/μs slew rate ・Low noise: 5nV/√Hz @ 10kHz (typical value) ・Low standby mode current: 4mA

■Application

・Test equipment ・Sonar system ・Industrial measuring equipment

■Description

The PA194 is a precision power amplifier that can supply high voltage, high speed signals with very low noise. This product is ideal for applications where high speed analog accuracy is critical to system operation. It comes in an 8-pin power SIP package and supports up to 30W continuous power consumption.

■Mode pin operation

The PA194 has a built-in standby mode that reduces the quiescent current to 4mA when the mode terminal (pin number 9) is connected to the negative supply (-VS). Standby mode helps conserve power when the amplifier is not in normal operation.

■Input protection

The PA194 can withstand differential input voltages up to ±20V, but additional external protection is recommended. A 1N4148 or 1N914 signal diode is sufficient for most applications. This clamps the input differential voltage to ±0.7V. This is enough overdrive to produce maximum power bandwidth. Note that this protection feature does not automatically protect the amplifier from excessive common-mode input voltages.

■External parts

Compensation capacitor CC must be evaluated for full supply voltage. A 1kV NPO (COG) capacitor is recommended. Also, the rated voltage and voltage coefficient of the gain setting feedback resistor are equally important. Typical voltage ratings for low wattage resistors are 150-250V. Note that a voltage of up to 900V may be applied to the feedback resistor. When choosing external components such as feedback resistors and current-limiting resistors, use low-reactance type resistors. The inductance of wire-wound resistors can cause amplifier instability and reduced slew rate.

  • Product

    Power operational amplifier PA194/PA194A

  • Usage Scenarios

    Electronics & Electrical Use / Aerospace Industry Use / Medical Industry Use

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2 Models of Power operational amplifier PA194/PA194A

Click on the part number for more information about each product

Image Part Number Price (excluding tax)
Power operational amplifier PA194/PA194A-Part Number-PA194

PA194

Available upon quote
Power operational amplifier PA194/PA194A-Part Number-PA194A

PA194A

Available upon quote

Click on the part number for more information about each product

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About Company Handling This Product

Apex Microtechnology, Inc.

Response Rate

100.0%

Response Time

4.1hrs

  • Japan

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