Operational Amplifiers - Op Amps

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PA441 & PA443 350V Low Noise Power Amplifiers

Apex Microtechnology PA441 and PA443 350V Low Noise Power Amplifiers provide next-generation performance based on the PA34X product family. These ICs have improved a specialty high-voltage process to offer a 96% reduction in signal noise. These devices also have a 2x improvement in offset voltage. These amplifiers are ideal for driving high voltage, fine motion systems for piezo positioning applications. The Apex Microtechnology PA441 and PA443 have a low noise rating of 12µV RMS at 20kHz bandwidth (Cc = 68pF). In offset voltage performance, 5mV at 25°C is typical, with just 20mV at the entire operating temperature range (-40°C to +125°C).

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Number of Channels	GBP - Gain Bandwidth Product	SR - Slew Rate	Vos - Input Offset Voltage	Ib - Input Bias Current	Supply Voltage - Max	Supply Voltage - Min	Output Current per Channel	CMRR - Common Mode Rejection Ratio	Package/Case	Mounting Style	Shutdown	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak, Dual PA443DF Apex Microtechnology 1: 19,57 € 3 423In Stock 30 434On Order	Mfr. Part No. PA443DF Mouser Part No 137-PA443DF	Apex Microtechnology	Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak, Dual Learn More about Apex Microtechnology pa441 pa443 amplifiers	Datasheet	3 423In Stock 30 434On Order On Order Ship Dates Mfr. No: PA443DF Stock: 3 423 Can Dispatch Immediately On Order: 20 343 Expected 12/25/2026 2 831 Expected 6/18/2027 7 260 Expected 8/9/2027 Factory Lead Time: 16 Weeks	19,57 € 15,97 € Quote Quote	Min.: 1 Mult.: 1	1 Channel	10 MHz	32 V/us	20 mV	200 pA	175 V	10 V	60 mA	115 dB	MO-166-24	SMD/SMT	No Shutdown	- 40 C	+ 125 C	Tube
Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak PA441DW Apex Microtechnology 1: 74,81 € 38In Stock 100Expected 10/6/2026	Mfr. Part No. PA441DW Mouser Part No 137-PA441DW	Apex Microtechnology	Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak Learn More about Apex Microtechnology pa441 pa443 amplifiers	Datasheet	38In Stock 100Expected 10/6/2026	74,81 € 62,30 € 58,64 € 55,40 € View Quote	Min.: 1 Mult.: 1	1 Channel	10 MHz	32 V/us	20 mV	200 pA	175 V	10 V	60 mA	115 dB	SIP-10	Through Hole	No Shutdown	- 40 C	+ 125 C	Tray
Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak PA441DF Apex Microtechnology 1: 16,18 € 4 724On Order	Mfr. Part No. PA441DF Mouser Part No 137-PA441DF	Apex Microtechnology	Operational Amplifiers - Op Amps IC OpAmp, 350V, 120mA Peak Learn More about Apex Microtechnology pa441 pa443 amplifiers	Datasheet	4 724On Order On Order Ship Dates Mfr. No: PA441DF Stock: 0 On Order: 1 070 Expected 6/18/2027 3 654 Expected 8/20/2027 Factory Lead Time: 16 Weeks	16,18 € 12,81 € 11,98 € 11,06 € View 10,54 € 10,35 €	Min.: 1 Mult.: 1	1 Channel	10 MHz	32 V/us	20 mV	200 pA	175 V	10 V	60 mA	115 dB	MO-166-24	SMD/SMT	No Shutdown	- 40 C	+ 125 C	Tube

PA441 & PA443 350V Low Noise Power Amplifiers

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