HV20220FG-G-M931

Analog Switches - Special Purpose Overview

The HV20220FG-G-M931 is an 8-channel high-voltage analog switch IC manufactured by Microchip Technology, utilizing Supertex HVCMOS technology. It features a 48-lead LQFP package with a 7x7 mm body and 0.50 mm pitch. The device operates on a logic supply (VDD) of 4.5 V to 13.2 V and supports dual high-voltage supplies ranging from -160 V to +40 V up to +200 V/-40 V. Key electrical parameters include a maximum on-resistance of 25 Ω at 5 mA, a typical off-isolation of -60 dB at 5 MHz, and low charge injection of 350 pC. It incorporates an internal 8-bit shift register and latch for serial control.

Analog Switches - Special Purpose Feature Summary

• Integrates HVCMOS technology combining high voltage bilateral DMOS switches with low power CMOS logic circuitry.
• Includes on-chip 8-bit shift register and latch logic to minimize clock feed-through noise during data loading.
• Provides flexible high-voltage supply configurations suitable for diverse signal ranges.
• Features very low quiescent power dissipation and excellent noise immunity.

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging systems
• Piezoelectric transducer drivers
• High voltage printing applications

Analog Switches - Special Purpose Procurement Notes

Verify the M931 suffix indicates tape and reel packaging containing 1000 units per reel. Confirm RoHS compliance and lead-free status via the manufacturer's documentation. Ensure the component matches the 48-lead LQFP physical dimensions and pinout before integration into the design.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits requiring independent control of eight high-voltage channels via low-voltage digital signals. Consider the specific VPP/VNN supply combinations required for the target application, as on-resistance varies with voltage levels. Evaluate thermal resistance characteristics if operating near the upper temperature limits.

Analog Switches - Special Purpose Part Context

This part belongs to the HV20220 family of low charge injection analog switches. The FG suffix denotes the 48-lead LQFP package variant, while the M931 suffix specifies the tape and reel packing option. It serves as a high-performance alternative to standard CMOS switches in high-voltage environments.

Analog Switches - Special Purpose Replacement Considerations

The HV20220PJ-G offers identical functionality in a 28-lead PLCC package. Verify pin compatibility and thermal requirements when substituting between package types.

Analog Switches - Special Purpose FAQ

How does the Latch Enable Bar (LE) input affect data loading?

To reduce clock feed-through noise, the LE input should be held high until all bits are clocked into the shift register. The switch states update only upon the rising edge of the LE signal.

What is the maximum allowable slew rate for the analog signal?

The maximum VSIG slew rate is specified as 20 V/ns across all supported VPP and VNN supply combinations.

Does the device support simultaneous switching of all channels?

Yes, the eight switches operate independently but can be controlled simultaneously via the serial interface. The peak output current per channel is limited to 3.0 A.