MAX4968AECM+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4968AECM+T is a 16-channel, high-linearity, high-voltage, bidirectional SPST analog switch manufactured by Analog Devices Inc./Maxim Integrated. It utilizes HVCMOS technology to combine high-voltage bilateral MOS switches with low-power CMOS logic. The device operates with a logic supply (VDD) of +2.37V to +5.5V, a positive voltage supply (VPP) of +9.5V to +10.5V, and a negative supply (VNN) ranging from -200V to 0V. It features a typical on-resistance of 18Ω and supports an extended input range up to 210VP-P. The component includes integrated bleed resistors for capacitive load discharge and is housed in a 48-LQFP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated 40kΩ bleed resistors on each switch terminal to discharge capacitive loads
• Daisy-chainable serial interface for controlling multiple devices simultaneously
• Latch-free operation with active-low latch-enable and latch-clear inputs
• Low charge injection and voltage spike characteristics for signal integrity

Analog Switches, Multiplexers, Demultiplexers Applications

• Medical Ultrasound Imaging
• Nondestructive Testing (NDT)/Industrial Ultrasound Imaging
• Printers

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Ensure that the VPP supply voltage requirements align with the system design, as this variant typically requires a low +10V supply rather than high-voltage alternatives. Cross-reference the pinout with compatible legacy parts if performing a direct replacement to avoid interface mismatches.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4968AECM+T when integrated bleed resistors are required to safely discharge piezoelectric transducers or other capacitive loads. This model is distinct from the standard MAX4968 due to the presence of these internal resistors. Confirm that the application does not require the high +100V supply capability found in the MAX14803 series, as this device is optimized for lower voltage control signals.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4968 family of high-voltage analog switches designed for ultrasound and industrial applications. It is pin-to-pin compatible with the Supertex HV2701 and the Maxim MAX14803, sharing the same physical footprint and pin assignments while differing in internal circuitry such as the inclusion of bleed resistors.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4968AECM+T is pin-to-pin compatible with the MAX14803 and Supertex HV2701. Verify that the substitute part matches the specific requirement for integrated bleed resistors, as the standard MAX4968 lacks this feature.