HV2661FG-G

Analog Switches - Special Purpose Overview

The HV2661FG-G is a low charge injection, 24-channel high voltage analog switch IC manufactured by Supertex Inc. It utilizes HVCMOS technology to combine high voltage bilateral DMOS switches with low power CMOS logic for efficient control of high voltage analog signals. The device features a 3:1 MUX-demultiplexer configuration with eight selectable states and accepts 3.3V or 5.0V CMOS input logic levels. It operates on flexible supply voltages, supporting VPP/VNN combinations such as +40V/-160V, +100V/-100V, and +160V/-40V. Input data is shifted into a 24-bit register and retained in latches via a serial interface clocked at up to 20MHz. The component handles analog signal frequencies from DC to 50MHz and is housed in a 48-lead LQFP package.

Analog Switches - Special Purpose Feature Summary

• Integrates 24 independent high voltage analog switches controlled by low voltage CMOS logic
• Features a cascadable serial data shift register with latches to minimize clock feed-through noise
• Supports flexible dual high voltage supply configurations for diverse switching requirements
• Provides excellent noise immunity and low parasitic capacitance for high performance applications

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging systems
• Piezoelectric transducer drivers
• Inkjet printer heads
• Optical MEMS modules

Analog Switches - Special Purpose Procurement Notes

Verify the manufacturer origin, as the datasheet identifies Supertex Inc. while distributors may list Microchip Technology due to acquisition history. Confirm the specific ordering suffix matches the required packing format, such as Tray or Reel quantities. Ensure the RoHS compliant 'Green' packaging designation aligns with environmental compliance standards. Cross-reference the absolute maximum ratings against your system's peak voltage and current limits to prevent device damage during operation.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits requiring high voltage analog signal routing controlled by standard low voltage digital interfaces. The 24-channel capacity and 3:1 multiplexing capability make it suitable for dense channel architectures. Evaluate the quiescent power dissipation and charge injection specifications against signal integrity requirements. Ensure the operating temperature range and thermal resistance characteristics fit within the constraints of the target enclosure design.

Analog Switches - Special Purpose Part Context

The HV2661 series belongs to a family of high voltage analog switches designed for precision signal routing. This specific model provides a high channel count in a single integrated circuit, reducing board space compared to discrete solutions. The integration of shift registers and latches simplifies the control logic interface, allowing direct connection to microcontrollers or FPGAs without additional buffer components.

Analog Switches - Special Purpose Replacement Considerations

HV2661FG-G-M931