General Description

The PVA30 Series AC Relay (PVA) is a single-pole, normally

open, solid-state replacement for electromechanical relays

used for general purpose switching of analog signals. It utilizes

International Rectifier’s HEXFET power MOSFETs as the

output switches, driven by an integrated circuit photovoltaic

generator of novel construction.The output switch is controlled

by radiation from a GaAlAs light emitting diode (LED), which

is optically isolated from the photovoltaic generator.

The PVA30 Series combines very low solid-state output

capacitance, very high off-state resistance and very fast

response times. These Photovoltaic Relays are designed

specifically to accurately switch low-level signals in high-

performance instrumentation systems.

The PVA30 Series overcomes the limitations of both

conventional electromechanical and reed relays by offering

the solid state advantages of long life, fast operating speed,

low pick up power, bounce-free operation, low thermal offset

voltages and miniature package. These advantages allow

product improvement and design innovations in many

applications such as process control, multiplexing, automatic

test equipment and data acquisition.

The PVA30 can switch analog signals from thermocouple

level to 300 Volts peak AC or DC polarity. Signal frequencies

into the RF range are easily controlled and switching rates

up to 1.7kHz are achievable. The extremely small thermally

generated offset voltages allow increased measurement

accuracies.

These relays are packaged in 8-pin, molded DIP packages

and available with either thru-hole or surface-mount (“gull-

wing”) leads, in plastic shipping tubes.

Applications

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Process Control

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Data Acquisition

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Test Equipment

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Multiplexing and Scanning

Features

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Bounce-Free Operation

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1,000 V/

µsec dv/dt

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0.2

µV Thermal Offset

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5 mA Input Sensitivity

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4,000 V

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Solid-State Reliability

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UL Recognized

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ESD Tolerance:

4000V Human Body Model

500V Machine Model

Data Sheet No. PD10050-D

Series PVA30N

Microelectronic Power IC

Single-Pole, Normally-Open

0-300V AC/DC, 50mA

Part Identification

PVA3054N

PVA3055N

thru-hole

PVA3054NS

PVA3055NS

surface-mount (gull-wing)

(HEXFET is the registered trademark for International Rectifier Power MOSFETs)

www.irf.com

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