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HV238
  • HV238
  • HV238

HV238

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HV238 is a 220V, 16-channel, high voltage analog switch integrated circuit (IC) with output bleed resistors (RINT). The output switches are configured as 2 sets of 8 single pole single throw analog switches. It is intended to be used in applications requiring high voltage switching controlled by low voltage control signals such as ultrasound imaging. The 2 sets of 8 analog switches are controlled by 2 input logic controls, DIN1 and DIN2. A logic high on DIN1 will turn on switches 0 to 7 and a logic high on DIN2 will turn on switches 8 to 15. The bleed resistors help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs. ...

Microchip Technology HV238 Product Info

16 April 2026 0

Parameters

Interface

2 Banks of 8

Configuration

16-SPST

Supply Voltage Vpp - Vnn (V)

220

Analog Signal Voltage (V)

200

Switch Current (A)

±2

Switch Resistance typ (Ω)

18

Output Bleed Resistors

Yes

Package

LQFP-48

Notes

use HV2731 for new designs

Features

    • HVCMOS® technology for high performance
    • 220V operating conditions
    • Output on-resistance typically 22O
    • Integrated bleed resistors on the outputs
    • 5.0 and 12.0V CMOS logic compatibility
    • Very low quiescent power dissipation (-10µA)
    • -45dB min off isolation at 7.5MHz
    • Low parasitic capacitance
    • Excellent noise immunity
    • Flexible operating supply voltages

Description

HV238 is a 220V, 16-channel, high voltage analog switch integrated circuit (IC) with output bleed resistors (RINT). The output switches are configured as 2 sets of 8 single pole single throw analog switches. It is intended to be used in applications requiring high voltage switching controlled by low voltage control signals such as ultrasound imaging. The 2 sets of 8 analog switches are controlled by 2 input logic controls, DIN1 and DIN2. A logic high on DIN1 will turn on switches 0 to 7 and a logic high on DIN2 will turn on switches 8 to 15. The bleed resistors help to significantly reduce voltage built up on capacitive loads such as piezoelectric transducers connected to the outputs.

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