Overview
The AD7503JN, produced by Analog Devices Inc., is a monolithic CMOS, 8-channel analog multiplexer. 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 AD7503 is identical to the AD7501 except for its inverted 'enable' logic. This makes it versatile for various applications requiring analog signal switching.
Key Specifications
| Parameter | Condition | AD7503 |
|---|---|---|
| RON (On Resistance) | All ON, -10 V ≤ VS ≤ +10 V | 170 Ω typ, 300 Ω max |
| RON vs. VS | All ON, IS = 1.0 mA | 20% typ |
| RON vs. Temperature | All ON, VS = 0 V, IS = 1.0 mA | 0.5%/°C typ |
| ∆RON Between Switches | All ON | 4% typ |
| ∆RON vs. Temperature Between Switches | All ON | ±0.01%/°C |
| IS (OFF) | VS = -10 V, VOUT = +10 V and S OFF | 0.2 nA typ, 2 nA max |
| IOUT (OFF) | VS = -10 V, VOUT = +10 V and S OFF | 1 nA typ, 10 nA max |
| VINL (Digital Input Low) | All | 0.8 V max |
| VINH (Digital Input High) | All | 2.4 V min |
| IINL or IINH (Digital Input Current) | All | 10 nA typ |
| CIN (Digital Input Capacitance) | All | 3 pF typ |
| tON (Turn-On Time) | VIN = 0 to +5.0 V | 0.8 µs typ |
| tOFF (Turn-Off Time) | VIN = 0 to +5.0 V | 0.8 µs typ |
Key Features
- DTL/TTL/CMOS Direct Interface: Compatible with various digital logic standards.
- Low Power Dissipation: 30 µW, making it energy-efficient.
- Low On Resistance (RON): 170 Ω typical, ensuring minimal signal degradation.
- Standard 16-Lead DIPs and 20-Terminal Surface Mount Packages: Versatile packaging options for different design needs.
Applications
The AD7503JN is suitable for a wide range of applications, including:
- Analog signal switching in data acquisition systems.
- Automotive and industrial control systems where multiple analog signals need to be routed.
- Medical devices requiring precise analog signal management.
- Aerospace and defense systems where reliability and low power consumption are critical.
Q & A
- What is the primary function of the AD7503JN? The AD7503JN is an 8-channel analog multiplexer that switches one of eight inputs to a common output based on digital control inputs.
- How does the AD7503 differ from the AD7501? The AD7503 has an inverted 'enable' logic compared to the AD7501.
- What are the typical and maximum on-resistance values for the AD7503? The typical on-resistance is 170 Ω, and the maximum is 300 Ω.
- What is the power dissipation of the AD7503? The power dissipation is 30 µW.
- Is the AD7503 compatible with different digital logic standards? Yes, it is compatible with DTL/TTL/CMOS digital logic standards.
- What are the typical turn-on and turn-off times for the AD7503? Both the turn-on and turn-off times are typically 0.8 µs.
- What are the packaging options available for the AD7503? It is available in standard 16-Lead DIPs and 20-Terminal Surface Mount Packages.
- What is the temperature range for the AD7503's specifications? The specifications are typically given at +25°C.
- Is the AD7503 still in production? No, the AD7503JN is no longer manufactured but can be sourced from secondary suppliers.
- Where can I find support and documentation for the AD7503? Support and documentation can be found on Analog Devices' official website and support portal.
