PS321CPA

$1.10

Description：IC SWITCH SPST-NC X 2 35OHM 8DIP
Series：-

SKU:8f8a296c8094 Category: Analog Switches, Multiplexers, Demultiplexers Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPST-NC X 2 35OHM 8DIP
Series：-
Mfr：Diodes Incorporated
Package：Tube
Switch Circuit：SPST - NC
Multiplexer/Demultiplexer Circuit：1:01
On-State Resistance (Max)：35Ohm
Channel-to-Channel Matching (ΔRon)：300mOhm
Voltage - Supply, Single (V+)：-
Voltage - Supply, Dual (V±)：±2.7V ~ 8V
Switch Time (Ton, Toff) (Max)：150ns, 100ns
-3db Bandwidth：-
Charge Injection：8pC
Channel Capacitance (CS(off), CD(off))：9pF, 9pF
Current - Leakage (IS(off)) (Max)：100pA
Crosstalk：-85dB @ 1MHz
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Number of Circuits：2
Grade：-
Qualification：-

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PS321CPA

Overview

The PS321CPA is a dual single-pole single-throw (SPST) analog switch manufactured by Diodes Incorporated. It operates on a single supply voltage or dual supplies ranging from ±2.7V to ±8V. The device features a maximum on-resistance of 35 ohms and a channel-to-channel matching of 300 milliohms. Switching times are specified at 150 nanoseconds for turn-on and 100 nanoseconds for turn-off. Key electrical characteristics include a charge injection of 8 picocoulombs, a channel capacitance of 9 picofarads per channel, and a maximum leakage current of 100 picoamperes. It provides -85dB crosstalk at 1MHz. The component is housed in an 8-pin DIP package with a width of 0.300 inches.

Feature Summary

Dual SPST configuration providing two independent signal paths within a single package.
Low on-resistance ensures minimal signal attenuation across the conduction path.
Capable of handling both single and dual power supply configurations for flexible system integration.

Applications

Signal routing in data acquisition systems
Audio signal switching and multiplexing
Test and measurement equipment signal paths

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current datasheet before procurement. Confirm that the 8-DIP form factor matches the target PCB footprint requirements. Ensure the operating temperature range of -40°C to +85°C aligns with the environmental conditions of the intended application design.

Selection Notes

Select this component when a compact solution for dual analog signal switching is required. The low charge injection and high off-isolation make it suitable for precision applications. Verify that the 35-ohm on-resistance meets the voltage drop constraints of the specific signal chain. Consider the through-hole mounting style if surface-mount alternatives are not feasible for the assembly process.

Part Context

This part belongs to the family of analog switches produced by Diodes Incorporated. It serves as a mechanical relay replacement for low-power signal switching tasks. The device integrates CMOS technology to provide high input impedance and low power consumption compared to electromechanical solutions.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives. Verify that any substitute maintains the same SPST configuration and voltage ratings. Ensure the replacement package matches the 8-DIP dimensions to avoid PCB redesign.