HV238FG-G

Analog Switches - Special Purpose Overview

The HV238FG-G is a 16-channel high voltage analog switch IC manufactured by Microchip Technology, utilizing Supertex HVCMOS technology. It operates with a total supply voltage range of 50V to 220V (VPP and VNN) and a logic supply of 4.75V to 12.6V. The device features two sets of eight single-pole single-throw switches controlled by DIN1 and DIN2 inputs. Key electrical parameters include a typical on-resistance of 22Ω at +25°C, a maximum turn-on/turn-off time of 5μs, and a quiescent current of 10μA. It includes integrated bleed resistors and is housed in a 48-lead LQFP package.

Analog Switches - Special Purpose Feature Summary

• Integrates output bleed resistors to reduce voltage buildup on capacitive loads
• Features low parasitic capacitance and excellent noise immunity
• Provides CMOS logic compatibility for control signals

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging
• Non-destructive evaluation

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation before procurement. Confirm that the -G suffix corresponds to lead-free and RoHS compliance requirements. Ensure the selected packaging option matches the required quantity constraints for the intended production volume.

Analog Switches - Special Purpose Selection Notes

Select this component when high voltage switching capabilities are required alongside low power consumption. Verify that the operating temperature range meets the environmental conditions of the application. Ensure the control logic levels align with the specified input voltage thresholds for reliable operation.

Analog Switches - Special Purpose Part Context

This component belongs to the HV238 series of high voltage analog switches originally developed by Supertex Inc., which was acquired by Microchip Technology. The product line is designed for applications requiring robust high voltage handling with minimal signal distortion.

Analog Switches - Special Purpose Replacement Considerations

Check for direct replacements within the same family or cross-reference with other high voltage analog switches from different manufacturers if availability is an issue.

Analog Switches - Special Purpose FAQ

How are the 16 channels controlled?

The 16 channels are divided into two sets of 8. Switches 0 to 7 are controlled by DIN1, and switches 8 to 15 are controlled by DIN2.

What is the purpose of the integrated bleed resistors?

The integrated bleed resistors help significantly reduce voltage buildup on capacitive loads connected to the outputs.

What is the typical on-resistance value?

The typical on-resistance is 22Ω under standard operating conditions at +25°C.