The ADG5404F is an analog multiplexer consisting of four channels with input fault protection. The ADG5404F switches one of the four inputs to a common drain D based on the address determined by the 2-bit binary address lines (A0 and A1). Enable the digital input EN can be used to disable all switches. When turned on, each channel conducts equally in both directions, and the input signal range extends to the supply voltage range. The digital inputs are compatible with the 3 V logic inputs over the entire operating voltage range.
When there is no power supply, the switch remains off and the channel inputs are in a high-impedance state. Under normal operating conditions, if the analog input signal level on either Sx pin exceeds V
DDor V
SS, and if the amplitude exceeds the threshold voltage VT, the corresponding channel shuts down and the Sx pin changes to a high-impedance state. If the channel is turned on, the drain pin reacts based on the drain response (DR) input pin. If the DR pin floats or is pulled high, the drain remains in a high-impedance state and floats. If the DR pin is pulled low, the drain is pulled above the rail level. Input signal levels of +55 V or −55 V relative to ground are blocked, with or without power.
The low on-resistance of the ADG5404F, which remains flat over a considerable signal range, makes it an ideal solution for data acquisition and gain switching applications that require excellent linearity and low distortion performance.
Note that throughout the data sheet, dual-function pin names refer only to the applicable relevant function. Complete pin names and feature descriptions can be found in the Pin Configuration and Function Description section.
Product features
- The source pins are protected against overvoltages up to −55 V and +55 V above the supply rail.
- The overvoltage protection range of the source pin is −55 V to +55 V when no power supply is present.
- Overvoltage detection provides a digital output indicating the operating status of the switch.
- Channel isolation prevents latch-up.
- Optimized for low on-resistance and on-resistance flatness.
- The ADG5404F operates from dual supplies ± 5 V to ±22 V or from a single 8 V to 44 V.
apply
- Analog input/output modules
- Process control/distributed control systems
- Data acquisition
- Instrumentation
- Avionics
- Automatic test equipment
- Communication systems
- Relay alternatives