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Product Detailed Parameters
- Description：IC MUX 8:1 300OHM 16DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：300Ohm
- Channel-to-Channel Matching (ΔRon)：12Ohm
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：±15V
- Switch Time (Ton, Toff) (Max)：800ns, 800ns (Typ)
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：5pF, 30pF
- Current - Leakage (IS(off)) (Max)：2nA
- Crosstalk：-
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-DIP (0.300", 7.62mm)
- Supplier Device Package：16-PDIP
- Number of Circuits：1
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Overview
The AD7503KN is a monolithic CMOS 8-channel analog multiplexer that switches one of eight inputs to a common output based on three binary address lines and an inverted enable input. It features TTL/DTL and CMOS logic compatibility with a maximum on-resistance of 300 Ω, typical turn-on and turn-off times of 800 ns, and supply current of 500 µA max at low digital inputs.
Feature Summary
- Inverted enable logic for the AD7503 variant
- Direct interface with DTL, TTL, and CMOS logic families
- Monolithic CMOS construction for low power consumption
Applications
- Data acquisition systems requiring signal routing
- Process control instrumentation
- Industrial automation signal conditioning
- Test and measurement equipment
Procurement Notes
Verify component obsolescence status prior to procurement as the AD7503KN is listed as obsolete by Analog Devices Inc. Confirm availability through authorized distributors or secondary markets. Ensure replacement components meet equivalent electrical specifications and package dimensions for direct integration into existing designs.
Selection Notes
Select the AD7503KN when inverted enable logic is required compared to the standard AD7501. The KN suffix indicates a commercial temperature range of 0°C to +70°C in a 16-lead PDIP package. Verify that the application voltage does not exceed absolute maximum ratings and that ESD precautions are observed during handling.
Part Context
The AD7503KN belongs to the AD7501/AD7502/AD7503 family of CMOS analog multiplexers manufactured by Analog Devices Inc. This family provides single-ended switching solutions with high isolation and low power dissipation. The AD7503 specifically differs from the AD7501 by its active-high enable logic configuration.
Replacement Considerations
Publicly confirmed substitutes include the ADG1408YRUZ from Analog Devices Inc. Verify pinout compatibility and electrical parameter equivalence before substitution. Alternative packages such as CERDIP or LCC may be available under different suffixes within the same family.
FAQ
How does the enable logic of the AD7503 differ from the AD7501?
The AD7503 has inverted enable logic, meaning the multiplexer is enabled when the Enable input is HIGH. In contrast, the AD7501 is enabled when the Enable input is LOW.
What is the maximum on-resistance specified for the AD7503KN?
The maximum on-resistance (RON) for the AD7503KN is specified as 300 Ω over the operating temperature range.
Is the AD7503KN compatible with standard TTL logic levels?
Yes, all digital inputs on the AD7503KN are compatible with both TTL/DTL and CMOS logic families.
