MAX4968CCM+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4968CCM+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 supply (VPP) of +9.5V to +10.5V, and a negative supply (VNN) from -160V to 0V. It features a typical on-resistance of 18Ω (max 34Ω), a small-signal bandwidth of 30MHz, and an extended input range up to 210VP-P. Controlled via a 25MHz serial interface, it is housed in a 48-pin LQFP package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• SOI HVCMOS process technology for high performance and robustness
• No dedicated high-voltage supplies required for operation
• On-resistance flatness guaranteed across the entire input range
• Daisy-chainable serial interface supporting multiple devices

Analog Switches, Multiplexers, Demultiplexers Applications

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

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CCM' against official documentation, as standard listings typically reference 'ECM'. Confirm RoHS compliance status and lead-free packaging details directly with the manufacturer or authorized distributors before procurement. Ensure the component matches the exact pinout and thermal characteristics defined in the datasheet.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-voltage switching is required without dedicated high-voltage control supplies. The MAX4968 is suitable for applications needing low power dissipation and latch-free operation. Consider the MAX4968A variant if integrated bleed resistors are necessary for discharging capacitive loads such as piezoelectric transducers.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4968/MAX4968A series consists of 16-channel linear high-voltage analog switches. The MAX4968 is pin-to-pin compatible with the MAX14802 and Supertex HV2601. The MAX4968A is pin-to-pin compatible with the MAX14803 and Supertex HV2701. These devices simplify system requirements by allowing the negative voltage supply to be shared with transmitters.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4968 is pin-to-pin compatible with the MAX14802 and Supertex HV2601. The MAX4968A is pin-to-pin compatible with the MAX14803 and Supertex HV2701. Verify that the replacement part supports the same VPP supply voltage level (+10V typ) as the original design.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the maximum analog signal range supported by the MAX4968?

The device supports an extended input range up to 210VP-P, with an analog signal range from VNN to VNN + 210V.

How does the MAX4968 handle data updates during serial clocking?

Data is clocked into the shift register on the rising edge of CLK. To update the switch states, the LE (Latch Enable) input must be driven logic-low. Driving LE logic-high freezes the latch contents and prevents changes to switch states.

Is there a difference between the MAX4968 and MAX4968A regarding bleed resistors?

Yes, the MAX4968A provides integrated 40kΩ (typ) bleed resistors on each switch terminal to discharge capacitive loads, whereas the standard MAX4968 does not include these resistors.