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Microchip Technology HV2818R4X High-Voltage Analog Switch

The HV2818/R4X series are 32-channel, high-voltage analog switches designed for applications such as medical ultrasound, piezoelectric transducer driving, and non-destructive testing. They operate with only a +5V bias, handling high-voltage pulsed signals up to 100V, with low harmonic distortion and charge injection. Built in a compact 64-pin QFN package, these switches feature asymmetric topology for smaller size, high bandwidth up to 50 MHz, and low ON resistance of approximately 6Ω. They include integrated bleed resistors (HV2918 model) to prevent voltage buildup on capacitive loads, and are controlled via a serial interface, supporting daisy-chain configurations for multiple channels.

Authorized Distributors
Source:DigiKey
Part No:HV2818/R4X
Stock:0
Inv Date:06-03-2026
Price: Unit price: $33.94
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Part No:HV2818/R4X
Stock:230
Inv Date:06-04-2026
Price: Unit price: $33.94
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Part No:HV2818/R4X
Stock:0
Inv Date:06-03-2026
Price: Unit price: $62.97
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Part No:HV2818/R4X
Stock:0
Inv Date:06-03-2026
Price: Unit price: $62.97
Buy/RFQ:
Part No:HV2818/R4X
Stock:0
Inv Date:06-03-2026
Price: Unit price: $25.72
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Part No:HV2818/R4X
Stock:2
Inv Date:06-04-2026
Price: N/A
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Microchip Technology HV2818R4X High-Voltage Analog Switch Specifications:

  • Channels: 32 (16 2:1 MUX)
  • Bias Supply Voltage: +5V
  • High-Voltage Signal Handling: Up to 100V pulsed signals
  • Maximum Peak Current: 2.7A
  • Bandwidth: 50 MHz
  • ON Resistance: Approx. 6Ω
  • Package: 64-pin QFN, 9x9 mm
  • Operating Temperature Range: 0°C to +70°C
  • Storage Temperature Range: -65°C to +150°C
  • Power-up Sequence: Vdd first, then Vpp
  • Grounds: Separate digital (DGND) and analog (GND)
  • Control Interface: 32-bit serial register, clock up to 66 MHz
  • Bleed Resistors: Integrated in HV2918 for voltage stabilization
  • Dimensions: 9x9x0.9 mm, with exposed pad for cooling
  • Peak Analog Signal Voltage: ±110V
  • Maximum Junction Temperature: +125°C
  • Linear Control: Programmable via serial interface, supports daisy chaining

Buy the Buy Microchip HV2818R4X Part Number HV2818R4X Online

Discover the Microchip HV2818R4X, a 32-channel high-voltage analog switch with low harmonic distortion and 100V pulsed signal capability. Operates with only +5V bias supply, features integrated bleed resistors for load stabilization, and is perfect for ultrasound, piezoelectric transducer drivers, and nondestructive testing equipment. Its compact 64-pin QFN package offers excellent thermal performance and high bandwidth up to 50 MHz. Designed for easy serial control and daisy-chain configurations, this versatile switch ensures precision, reliability, and compact design for demanding high-voltage switching applications.

Order your Microchip HV2818R4X high-voltage analog switch today and enhance your ultrasound and transducer testing projects with reliable performance.

Frequently Asked Questions

Where can I buy Microchip Technology HV2818R4X?

You can click on the BUY or RFQ button to purchase HV2818R4X from an authorized Microchip Technology distributor.

How do I troubleshoot issues or seek technical support for part HV2818R4X?

You can download the HV2818R4X datasheet or visit the Microchip Technology website for support.

Who is the manufacturer of HV2818R4X?

Microchip Technology

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