HV2705FG-G-M931

Analog Switches - Special Purpose Overview

The HV2705FG-G-M931 is a 16-channel low harmonic distortion high-voltage analog switch manufactured by Microchip Technology. It features integrated bleed resistors on the outputs to eliminate voltage build-up on capacitive loads. The device operates with flexible supply voltages, supporting combinations such as VPP/VNN of +40V/-160V, +100V/-100V, and +160V/-40V. It utilizes a serial data shift register with latches for control, compatible with 3.3V logic levels. The IC combines high-voltage bilateral DMOS switches with low-power CMOS logic, offering a typical OFF-isolation of -60 dB at 5 MHz and a quiescent power dissipation of 10 µA.

Analog Switches - Special Purpose Feature Summary

• Integrated output bleed resistors specifically designed to discharge capacitive loads like piezoelectric transducers.
• Low harmonic distortion performance suitable for precision analog signal routing.
• Serial interface architecture with 16-bit shift register and latch for efficient control using minimal pins.
• Compatibility with standard 3.3V input logic levels while switching high-voltage analog signals.

Analog Switches - Special Purpose Applications

• Medical Ultrasound Imaging
• Non-destructive Metal Flaw Detection
• Piezoelectric Transducer Drivers
• Optical MEMS Modules

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix M931 against official Microchip documentation to confirm packaging or reel specifications. Ensure the LQFP-48 package aligns with design constraints, noting that datasheets may recommend TQFP alternatives for new designs. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement orders.

Analog Switches - Special Purpose Selection Notes

Select this component when high-voltage switching with low distortion is required alongside integrated load discharge capabilities. Compare ON-resistance values across different supply voltage configurations to ensure compatibility with signal amplitude requirements. Verify that the serial control interface timing meets system clock frequency limits, particularly regarding setup times and latch enable widths.

Analog Switches - Special Purpose Part Context

This part belongs to the HV2605/HV2705 family of 16-channel high-voltage analog switches. The HV2705 variant is distinguished by its internal bleed resistors, unlike the HV2605. These devices are engineered for applications demanding precise control of high-voltage analog signals via low-voltage digital interfaces, bridging the gap between standard CMOS logic and high-voltage analog domains.

Analog Switches - Special Purpose Replacement Considerations

The HV2605FG-G serves as a functional substitute if integrated bleed resistors are not required in the circuit design. Both parts share identical pinouts and control logic. Verify that the absence of internal bleed resistors in the replacement does not impact the discharge characteristics of connected capacitive loads.