MAX14806CCM+T

Analog Switches - Special Purpose Overview

The MAX14806CCM+T is a 16-channel high-voltage analog switch featuring two independent banks of eight single-pole single-throw (SPST) switches. It utilizes HVCMOS technology to support flexible high-voltage supplies, including VPP/VNN configurations of +100V/-100V, +200V/0V, and +40V/-160V, with a maximum differential voltage of 230V. The device operates from a separate logic supply ranging from +2.7V to +5.5V. Key electrical parameters include an on-resistance of 22Ω to 34Ω at +100V/-100V, low charge injection of 450pC, and an off-isolation of -77dB at 5MHz. Integrated 40kΩ bleed resistors are present on each terminal.

Analog Switches - Special Purpose Feature Summary

• Integrates 16 high-voltage SPST analog switches controlled by a digital interface for precise signal routing.
• Features integrated 40kΩ bleed resistors on all switch terminals to discharge capacitive loads such as piezoelectric elements.
• Supports flexible high-voltage power supply configurations up to a 230V differential range.

Analog Switches - Special Purpose Applications

• Bank selection in biplane or triplane ultrasound probes
• Relay replacement in medical ultrasound systems
• Nondestructive test (NDT) equipment

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the ordering information matches the exact pin count and package dimensions required for the target PCB layout. Ensure the procurement channel provides documentation verifying RoHS compliance status for the lead-free designation.

Analog Switches - Special Purpose Selection Notes

Select the MAX14806CCM+T over the MAX14805 variant specifically when integrated bleed resistors are required to manage voltage buildup in capacitive loads like piezoelectric transducers. Verify that the application requires the 48-pin TQFP package and extended temperature range specifications. Ensure the control logic aligns with the DIN1/DIN2 latch enable architecture.

Analog Switches - Special Purpose Part Context

This component belongs to the MAX14805/MAX14806 family of high-voltage analog switches designed for demanding ultrasonic imaging applications. Manufactured using specialized 200V process technology, these devices provide robust switching capabilities for high-voltage signals while maintaining low charge injection characteristics essential for signal integrity in medical diagnostics.

Analog Switches - Special Purpose Replacement Considerations

The MAX14806CCM+ is documented as a drop-in replacement for the Supertex HV2731. When substituting, verify that the legacy part's pinout and electrical characteristics match the MAX14806 specifications to ensure compatibility with existing circuit designs.

Analog Switches - Special Purpose FAQ

What is the function of the integrated bleed resistors in the MAX14806?

The MAX14806 includes integrated 40kΩ bleed resistors on each switch terminal to help reduce voltage buildup in capacitive loads, such as piezoelectric elements found in ultrasound transducers.

How are the 16 channels controlled in the MAX14806?

The switches are divided into two banks: DIN1 controls switches SW0 through SW7, and DIN2 controls switches SW8 through SW15. Data is latched via the active-low LE input.

What are the supported high-voltage supply configurations?

The device supports flexible high-voltage supplies including VPP/VNN = +100V/-100V, +200V/0V, and +40V/-160V, provided the total difference between VPP and VNN does not exceed 230V.