The MAX4800A/MAX4802A provide high-voltage switching on eight channels for ultrasonic imaging and printer applications. These devices utilize BCDMOS process technology to provide eight high-voltage low-charge-injection SPST switches, controlled by a 20MHz serial interface. Data is clocked into an internal 8-bit shift register and retained by a programmable latch with enable and clear inputs. A power-on reset function ensures that all switches are open on power-up. These devices operate with a wide range of high-voltage supplies including: VPP/VNN = +100V/-100V, +185V/-15V, and +40V/-160V. The digital interface operates from a separate VDD supply from +2.7V to +6V. Digital inputs DIN, CLK, LE, and CLR are +6V tolerant, independent of the VDD supply voltage. The MAX4802A provides integrated 35kΩ bleed resistors on each switch terminal to discharge capacitive loads. These devices are drop-in replacements for the Supertex HV2203 and HV2303. They are available in the 48-pin LQFP, 26-bump CSBGA, and 28-pin PLCC packages. All devices are specified for the commercial 0°C to +70°C temperature range.
The MAX4800A and MAX4802A provide eight high‑voltage low‑charge‑injection SPST switches for ultrasonic imaging and printer applications. They operate from a wide range of high‑voltage supplies and use a separate 2.7 V‑6 V logic supply, with a fast 20 MHz SPI interface for control.
Key features include flexible high‑voltage supplies up to 200 V, low quiescent current, integrated bleed resistors on the MAX4802A, and availability in 48‑pin LQFP, 26‑bump CSBGA, and 28‑pin PLCC packages. Detailed electrical, timing, and pin‑out specifications are provided for designers.
| High‑voltage supply range | Vpp‑VNN up to 200 V |
|---|---|
| Logic supply voltage | 2.7 V to 6 V |
| Package options | 48‑pin LQFP, 26‑bump CSBGA, 28‑pin PLCC |
The devices support a high‑voltage supply range of up to 200 V between Vpp and VNN.
They are offered in 48‑pin LQFP, 26‑bump CSBGA, and 28‑pin PLCC packages.
The logic supply voltage (Vpp) must be between 2.7 V and 6 V.
The SPI interface operates at up to 20 MHz.