HV2803/AHA

Analog Switches - Special Purpose Overview

The HV2803/AHA is a 32-channel high-voltage analog switch manufactured by Microchip Technology, housed in a 132-ball TFBGA package. It operates with a logic supply voltage (VLL) of 3 V to 3.6 V and dual power supplies (VDD/VSS) ranging from ±4.5 V to ±6.3 V. The device supports an analog signal range of -100 V to +100 V with a maximum on-resistance of 15 Ohms at 5 mA. It features a 66 MHz data shift clock frequency, 5 µs turn-on/turn-off times, and operates within a temperature range of 0°C to +70°C.

Analog Switches - Special Purpose Feature Summary

• Supports individual switching or bank switching modes via the MODE pin
• Utilizes Silicon-on-Insulator (SOI) technology for high performance
• Includes standby mode for low-power dissipation
• Features cascadable serial data register with latches

Analog Switches - Special Purpose Applications

• Medical Ultrasound Imaging
• Nondestructive Testing (NDT) Metal Flaw Detection
• Piezoelectric Transducer Drivers
• Inkjet Printer Heads
• Optical MEMS Modules

Analog Switches - Special Purpose Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm the specific suffix matches the no-bleed resistor configuration. Check datasheet revisions for updates. Ensure proper handling due to moisture sensitivity classification.

Analog Switches - Special Purpose Selection Notes

Select this model when high-voltage switching is required without external bias supplies. Compare against HV2903 and HV2904 if integrated bleed resistors are needed for capacitive loads. Verify that the 32-channel SPST configuration meets system requirements.

Analog Switches - Special Purpose Part Context

Part of the HV2803/HV2903/HV2904 family designed for low harmonic distortion applications. Differentiates from siblings by lacking integrated bleed resistors, making it suitable for specific load types where internal discharge paths are unnecessary.

Analog Switches - Special Purpose Replacement Considerations

HV2903/AHA: Includes bleed resistors on both sides. HV2904/AHA: Includes bleed resistors on one side only. Both require verification of functional differences regarding capacitive load handling.