HV2701TQ-G

Analog Switches - Special Purpose Overview

The HV2701TQ-G is a 16-channel, low-charge injection, high-voltage analog switch manufactured by Microchip Technology. It utilizes High-Voltage CMOS technology to combine bilateral DMOS switches with low-power CMOS logic. The device operates on flexible supply voltages, supporting VPP/VNN combinations such as +40V/-160V, +100V/-100V, and +160V/-40V. It features a serial data shift register with latches for control input. A distinguishing characteristic of the HV2701 variant is the inclusion of integrated bleed resistors on the outputs to prevent voltage buildup on capacitive loads. The TQFP suffix indicates a 48-lead Thin Quad Flatpack package.

Analog Switches - Special Purpose Feature Summary

• Integrated bleed resistors eliminate voltage build-up on capacitive loads like piezoelectric transducers
• Cascadable serial data register with latches allows efficient control of high-voltage analog signals
• Low quiescent power dissipation ensures minimal current draw during operation
• High-voltage CMOS technology provides excellent noise immunity and low charge injection

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging systems
• Non-destructive testing (NDT) metal flaw detection
• Piezoelectric transducer drivers
• Optical MEMS modules

Analog Switches - Special Purpose Procurement Notes

Verify that the ordering suffix 'TQ' corresponds to the 48-lead TQFP package, as the datasheet notes LQFP packages are not recommended for new designs. Confirm the specific voltage supply requirements match the device's operational limits. Ensure compliance with RoHS standards indicated by the '-G' suffix. Check for moisture sensitivity levels if storage conditions exceed specified parameters.

Analog Switches - Special Purpose Selection Notes

Select the HV2701TQ-G over the HV2601FG-G when integrated bleed resistors are required to discharge capacitive loads. The TQFP package is preferred over LQFP for new designs per manufacturer guidelines. Verify that the 3.3V logic level compatibility meets the system's control signal requirements. Consider the low charge injection specifications for applications demanding high signal fidelity.

Analog Switches - Special Purpose Part Context

This component belongs to the HV2601/HV2701 family of low-charge injection, 16-channel high-voltage analog switches. The HV2701 variant specifically includes integrated bleed resistors, whereas the HV2601 does not. Both devices share similar electrical characteristics and packaging options, designed for controlling high-voltage analog signals with low-voltage logic inputs.

Analog Switches - Special Purpose Replacement Considerations

The HV2601FG-G serves as a functional substitute within the same family but lacks the integrated bleed resistors found in the HV2701. Designers must evaluate whether the absence of bleed resistors impacts circuit performance, particularly with capacitive loads. Package differences between TQFP and LQFP should be considered for board layout compatibility.