The MAX4968AECM+ is a 16-channel, linear, high voltage analogue switch in 48 pin LQFP package. This bidirectional SPST switch with 18ohm(typ) on-resistance, it is ideal for use in applications requiring high voltage switching controlled by a low voltage control signal such as ultrasound imaging and printers. It provides integrated 40Kohm (typ) bleed resistors on each switch terminal to discharge capacitive loads. Using HVCMOS technology, this switch combines high voltage bilateral MOS switches and low power CMOS logic to provide efficient control of high voltage analogue signals. It is pin to pin compatible with the MAX14803 and Supertex HV2701. In a typical ultrasound application, this device do not require a dedicated high voltage supply that implies a significant simplification of system requirement. The negative voltage supply can be shared with the transmitter and positive voltage supply is typically +10V. It is used in nondestructive testing (NDT)/industrial.
Supply voltage range is 2.375V to 5.5V, 25MHz serial interface
Operating temperature range from -40°C to 85°C, shunt (bleed) resistors on outputs
Latch free, SOI HVCMOS process technology for high performance and robustness
No dedicated high voltage supplies required, extended input range up to 210Vp-p
RON flatness is in entire input range, daisy-chainable serial interface
Low power dissipation, low charge injection and voltage spike
2nd harmonic distortion < -45dB at 2MHz ± 90V pulse, -80dB (typ) off-isolation at 5MHz (50 ohm)
Low parasitic capacitance provides high bandwidth
DC to 30MHz small signal analogue bandwidth (CLOAD = 200pF)
500kHz to 20MHz high signal analogue bandwidth (CLOAD = 200pF)
(EN)
