ADG2128YCPZ-HS-RL7

Overview

The ADG2128YCPZ-HS-RL7 is an I²C-controlled CMOS analog crosspoint switch featuring an 8 × 12 matrix (96 channels) in a 32-lead LFCSP package. It supports dual ±5 V or single +12 V operation with a maximum on-resistance of 35 Ω and low quiescent current under 20 µA. The -HS suffix designates support for high-speed I²C interfaces up to 3.4 MHz, enabling rapid configuration updates. The device offers simultaneous switch updates via the LDSW command, hardware reset functionality, and readback capabilities. It is qualified for automotive applications and operates within extended temperature ranges.

Feature Summary

• High-speed I²C interface supporting up to 3.4 MHz clock rates
• Simultaneous update capability for multiple switches using LDSW command
• Hardware reset function to open all switches and clear registers
• Automotive qualification for reliable operation in demanding environments

Applications

• AV switching in TV systems
• Automotive infotainment signal routing
• Test equipment and instrumentation
• KVM switching systems

Procurement Notes

Verify that the ordering suffix matches the required performance specifications. The HS designation specifically enables high-speed I²C communication at 3.4 MHz; omitting this suffix results in standard speed limitations. Confirm the Y version meets the extended operating temperature range requirements if deployed in automotive or industrial settings. Ensure the LFCSP package handling procedures align with moisture sensitivity levels.

Selection Notes

Select the ADG2128YCPZ-HS-RL7 when system timing constraints require fast serial bus updates beyond standard I²C speeds. The Y version provides an extended temperature range suitable for automotive environments compared to the B version. Consider the 32-lead LFCSP footprint for space-constrained PCB layouts. Verify that the logic voltage levels are compatible with the host microcontroller's I/O standards before integration.

Part Context

This component belongs to the Analog Devices ADG2128 family of analog crosspoint switches. The specific part number indicates the Y temperature grade and HS high-speed interface variant. It shares the core 8x12 matrix architecture with other variants but differs in electrical performance limits and interface capabilities defined by its suffix codes.

Replacement Considerations

Direct substitutes include other ADG2128 variants such as ADG2128BCPZ or ADG2128YCPZ. Note that non-HS versions lack 3.4 MHz I²C support. Cross-vendor replacements require careful evaluation of pin compatibility, on-resistance characteristics, and control protocol differences.