HV2708T-C/R8X

Analog Switches - Special Purpose Overview

The HV2708T-C/R8X is a 16-channel high-voltage analog switch manufactured by Microchip Technology in a 48-lead LQFP package. It operates with a single +5V bias supply and supports analog signal voltages up to ±100V without requiring external high-voltage rails. The device features a typical on-resistance of 14Ω, a maximum of 23Ω, and an analog small-signal bandwidth of 100MHz. It includes integrated bleed resistors on the SWA side only, offering a resistance range of 20kΩ to 50kΩ. The unit functions within a temperature range of 0°C to +70°C.

Analog Switches - Special Purpose Feature Summary

• Integrated bleed resistors on one side of the switches to eliminate voltage buildup on capacitive loads
• High-voltage switching capability controlled by low-voltage logic signals
• Cascadable serial data register with latches for daisy-chain configurations
• Low harmonic distortion and low charge injection characteristics

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging systems
• Non-destructive testing metal flaw detection
• Piezoelectric transducer drivers
• Inkjet printer heads
• Optical MEMS modules

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and environmental compliance. Ensure that any variations in part numbering do not alter the electrical function or pinout configuration before finalizing procurement orders.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits that require high-voltage analog switching without complex high-voltage power supplies. The integrated bleed resistor on the SWA side makes it suitable for driving piezoelectric transducers where voltage decay management is required on specific terminals.

Analog Switches - Special Purpose Part Context

This device belongs to the HV2607/HV2707/HV2708 family. Unlike the HV2707 which has bleed resistors on both sides, the HV2708 provides them on the SWA side only. The HV2607 lacks these resistors entirely. All three share the same 48-pin LQFP footprint and control interface.

Analog Switches - Special Purpose Replacement Considerations

HV2707T-C/R8X offers identical functionality but includes bleed resistors on both switch sides. HV2607T-C/R8X is compatible but lacks integrated bleed resistors entirely. Verify circuit requirements regarding voltage discharge paths when substituting between these variants.

Analog Switches - Special Purpose FAQ

What is the difference between the HV2708 and HV2707?

The HV2708 has integrated bleed resistors on the SWA side of the switches only, whereas the HV2707 has integrated bleed resistors on both the SWA and SWB sides.

Does the HV2708 require a high-voltage power supply?

No, the device requires only a +5V or +6V bias supply to switch analog signals up to ±100V.

How are the switches controlled?

The switches are controlled via a digital serial interface consisting of Data In (DIN), Clock (CLK), Latch Enable (LE), and Clear (CLR) inputs.