Overview
The AD7503KNZ is a monolithic CMOS 8-channel analog multiplexer produced by Analog Devices Inc. This device is designed to switch one of eight inputs to a common output based on the state of three binary address lines and an 'enable' input. The AD7503KNZ is identical to the AD7501 except that its 'enable' logic is inverted, meaning the 'enable' input is active high for the AD7503KNZ.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 |
| Package Type | 16-pin PDIP |
| Enable Logic | Active High |
| Digital Input Compatibility | TTL/DTL and CMOS |
| Switch On Resistance (RON) | 170 Ω typical |
| Power Dissipation | 30 μW typical |
| Operating Temperature (Commercial) | -40°C to +85°C |
| Switch Current (IS, Continuous One Channel) | 35 mA |
| Switch Current (IS, Surge One Channel, 1 ms Duration, 10% Duty Cycle) | 50 mA |
| Turn-On Time (tON) | 0.8 μs typical |
| Turn-Off Time (tOFF) | 0.8 μs typical |
Key Features
- DTL/TTL/CMOS direct interface for easy integration with various logic families.
- Low power dissipation of 30 μW typical.
- Low switch on resistance (RON) of 170 Ω typical.
- Available in standard 16-lead DIP and surface mount packages.
- High accuracy and reliability due to proprietary ESD protection circuitry.
Applications
The AD7503KNZ is suitable for a variety of applications requiring analog signal switching, such as:
- Data acquisition systems.
- Automated test equipment.
- Medical devices.
- Industrial control systems.
- Aerospace and defense systems.
Q & A
- What is the primary function of the AD7503KNZ?
The AD7503KNZ is an 8-channel analog multiplexer that switches one of eight inputs to a common output based on the state of three binary address lines and an 'enable' input. - How does the 'enable' logic of the AD7503KNZ differ from the AD7501?
The 'enable' logic of the AD7503KNZ is inverted compared to the AD7501, meaning the 'enable' input is active high for the AD7503KNZ. - What are the compatible digital input types for the AD7503KNZ?
The AD7503KNZ is compatible with TTL/DTL and CMOS digital inputs. - What is the typical switch on resistance (RON) of the AD7503KNZ?
The typical switch on resistance (RON) is 170 Ω. - What is the power dissipation of the AD7503KNZ?
The power dissipation is typically 30 μW. - What are the operating temperature ranges for the AD7503KNZ?
The operating temperature range is -40°C to +85°C for commercial versions. - What is the maximum continuous switch current for one channel?
The maximum continuous switch current for one channel is 35 mA. - How long does it take for the switch to turn on and off?
The turn-on and turn-off times are typically 0.8 μs each. - In what packages is the AD7503KNZ available?
The AD7503KNZ is available in standard 16-lead DIP and surface mount packages. - What kind of protection does the AD7503KNZ have against ESD?
The AD7503KNZ features proprietary ESD protection circuitry.
