Overview
The ADG509A, specifically the ADG509AKN model from Analog Devices Inc., is a CMOS monolithic analog multiplexer. This device is designed to switch one of four differential inputs to a common differential output, controlled by two binary address lines and an enable input. The ADG509A is built on an enhanced LC2MOS process, which enhances its signal capability and allows operation over a wide range of supply voltages.
Key Specifications
| Parameter | Typical | Maximum | Minimum |
|---|---|---|---|
| Supply Voltage Range | 10.8 V to 16.5 V | - | - |
| Analog Signal Range | VSS to VDD | - | - |
| Operating Temperature Range | -40°C to +85°C | - | - |
| Power Dissipation | 28 mW | - | - |
| Leakage Current (Off) | 0.02 nA | 1 nA | - |
| Leakage Current (On) | 0.04 nA | 1 nA | - |
| Digital Input High Voltage (VINH) | - | 2.4 V | - |
| Digital Input Low Voltage (VINL) | - | 0.8 V | - |
| Digital Input Capacitance (CIN) | - | 8 pF | - |
| Transition Time (tTRANSITION) | 200 ns | 400 ns | - |
| Enable Time (tON, tOFF) | 200 ns | 400 ns | - |
Key Features
- Single-/Dual-Supply Specifications: The device operates in the 10.8 V to 16.5 V range for both single and dual supplies.
- Extended Signal Range: The enhanced LC2MOS process provides a high breakdown and an increased analog signal range of VSS to VDD.
- Break-Before-Make Switching: Switches are guaranteed break-before-make to protect input signals against momentary shorting.
- Low Leakage: Leakage currents are typically 20 pA, making the multiplexer suitable for high precision circuits.
- High Switching Speeds: The device features fast switching times, enhancing its performance in dynamic applications.
- Fault Protection: The multiplexer can withstand continuous voltage inputs from -40 V to +55 V, with minimal leakage current during fault conditions.
- TTL and 5 V CMOS Logic Compatibility: Digital inputs are compatible with TTL and 5 V CMOS logic.
Applications
- Industrial Automation: Used in control systems and data acquisition where multiple analog signals need to be routed to a single output.
- Medical Equipment: Suitable for medical devices requiring precise signal switching and isolation.
- Aerospace and Defense: Employed in systems that require high reliability and fault tolerance.
- Test and Measurement Equipment: Ideal for switching multiple analog signals in test and measurement applications.
Q & A
- What is the ADG509A used for?
The ADG509A is a CMOS monolithic analog multiplexer used to switch one of four differential inputs to a common differential output.
- What is the supply voltage range of the ADG509A?
The device operates in the 10.8 V to 16.5 V range for both single and dual supplies.
- What is the operating temperature range of the ADG509A?
The operating temperature range is -40°C to +85°C.
- Does the ADG509A have fault protection?
Yes, the ADG509A can withstand continuous voltage inputs from -40 V to +55 V, with minimal leakage current during fault conditions.
- What is the typical leakage current of the ADG509A?
The typical leakage current is 20 pA.
- Is the ADG509A compatible with TTL and 5 V CMOS logic?
Yes, the digital inputs are compatible with TTL and 5 V CMOS logic.
- What is the transition time of the ADG509A?
The transition time (tTRANSITION) is typically 200 ns and maximally 400 ns.
- What are the common applications of the ADG509A?
Common applications include industrial automation, medical equipment, aerospace and defense, and test and measurement equipment.
- What is the package type of the ADG509AKN?
The ADG509AKN is available in a 16-DIP (0.300, 7.62mm) package.
- Does the ADG509A feature break-before-make switching?
Yes, the switches are guaranteed break-before-make to protect input signals against momentary shorting.
