ADG5423BCPZ-RL7

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG5423BCPZ-RL7 is a dual single-pole/single-throw (SPST) analog switch from Analog Devices Inc., housed in a 10-lead Lead Frame Chip Scale Package (LFCSP). It operates with dual supplies of ±9 V to ±22 V or a single supply of 9 V to 40 V. Key electrical parameters include an on-resistance (RON) of 13.5 Ω typical at ±15 V, off-isolation of -55 dB, and a -3 dB bandwidth of 250 MHz. The device features latch-up immunity via trench isolation, an 8 kV HBM ESD rating, and break-before-make switching action.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST switches with independent logic control inputs
• Trench isolation technology ensures complete latch-up immunity under all circumstances
• Break-before-make timing prevents signal shorting during channel switching
• High ESD protection rated at 8 kV Human Body Model

Analog Switches, Multiplexers, Demultiplexers Applications

• High voltage signal routing
• Automatic test equipment
• Precision data acquisition systems
• Industrial instrumentation
• Amplifier gain select circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the component authenticity by checking the marking code BM on the package against the ordering guide. Confirm the suffix RL7 indicates tape and reel packaging. Ensure the temperature range matches the specified -40°C to +125°C for industrial applications. Cross-reference the datasheet revision A specifications with your design requirements.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG5423 variant specifically when break-before-make switching is required for multiplexer applications to avoid transient shorts. Choose this part over the ADG5421 if asymmetric switch states are needed for Logic 1 inputs. Verify that the 13.5 Ω on-resistance meets the signal integrity requirements for the target voltage range.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the ADG54xx family of high-voltage, latch-up proof analog switches. It shares the same core architecture and pinout as the ADG5421 but differs in internal logic configuration. The family utilizes complementary metal oxide semiconductor (CMOS) technology designed for robust performance in harsh industrial environments.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The ADG5421BCPZ-RL7 is a logical substitute if break-before-make timing is not required, as it turns both switches on for a Logic 1 input. Other family members like the ADG5436 offer different switch configurations (SPDT) and should be evaluated for functional compatibility.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the difference between the ADG5421 and ADG5423 logic?

For a Logic 1 input, the ADG5421 turns both switches on, whereas the ADG5423 turns one switch on and the other off, providing break-before-make action.

How does the ADG5423 achieve latch-up immunity?

It uses trench isolation, where a dielectric oxide layer separates the P-channel and N-channel transistors, eliminating the parasitic silicon-controlled rectifier circuit found in junction-isolated devices.

What is the maximum supply voltage for this device?

The absolute maximum rating for VDD to VSS is 48 V. Single-supply operation is supported up to 40 V, and dual-supply operation up to ±22 V.