MAX4968A Datasheet | Maxim Integrated

Description The MAX4968/MAX4968A are 16-channel, high-linearity, high-voltage, bidirectional SPST analog switches with 18I (typ) on-resistance. The devices are ideal for use in applications requiring high-voltage switching controlled by a low-voltage control signal, such as ultrasound imaging and printers. The MAX4968A provides integrated 40k I (typ) bleed resistors on each switch terminal to discharge capacitive loads. Using HVCMOS technology, these switches bine high-voltage bilateral MOS switches and low-power CMOS logic to provide efficient control of high-voltage analog signals. The MAX4968 is pin-to-pin patible with the MAX14802 and Supertex HV2601. The MAX4968A is pin-to-pin patible with the MAX14803 and Supertex HV2701. The only difference is the VPP positive supply voltage level. The MAX4968/MAX4968A require a low +10V (typ) voltage (VPP), whereas the MAX14802/MAX14803 and HV2601/HV2701 require a high +100V supply voltage. In a typical ultrasound application, these devices 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 the positive voltage supply is typically +10V. The devices are available in the 48-pin LQFP package and are specified over the -40NC to +85NC extended temperature range. Features S Latch Free SOI HVCMOS Process Technology for High Performance and Robustness S No Dedicated High-Voltage Supplies Required S RON Flatness Guaranteed in Entire Input Range S Low-Power Dissipation S Low-Charge Injection and Voltage Spike S 25MHz Serial Interface (+2.5V to +5V) S 2nd Harmonic Distortion < -45d B at 2MHz ± 90V Pulse S Low Parasitic Capacitance Guarantees High Bandwidth S DC to 30MHz Small-Signal Analog Bandwidth (CLOAD = 200p F) S 500k Hz to 20MHz High-Signal Analog Bandwidth (CLOAD = 200p F) S Extended Input Range Up to 210VP-P S -80d B (typ) Off-Isolation at 5MHz (50I) S Shunt (Bleed) Resistors on Outputs (MAX4968A...