AD7501KNZ Analog Devices Integrated Circuit (Dual-In-Line Packages) In Stock
The AD7501KNZ is an 8-channel single-ended CMOS analog multiplexer from Analog Devices operating on ±15 V supplies, housed in a 16-pin DIP package for through-hole PCB assembly. Available from stock worldwide with fast shipping.
- Manufacturer
- Analog Devices
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- AD7501KNZ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-channel single-ended analog multiplexer with ±15 V dual supply operation for rail-to-rail analog signal switching across a wide ±10 V signal range
- Low on-resistance CMOS switch design enables precise analog signal routing with minimal signal degradation in 16-pin DIP through-hole package
- Binary-coded 3-bit address inputs select 1-of-8 analog channels, simplifying microcontroller interface for multi-channel data acquisition systems
Applications
The AD7501KNZ is used in data acquisition systems, instrumentation, and industrial process control equipment where multiple analog sensor signals must be sequentially routed to a single ADC input. Its ±15 V dual-supply operation makes it compatible with precision op-amp signal conditioning chains, enabling multi-channel temperature, pressure, or voltage measurement front-ends in laboratory instruments and programmable logic controllers.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | N-16 |
| Reach Compliance Code | Unknown |
| YTEOL | 0 |
| Analog IC - Other Type | SINGLE-ENDED MULTIPLEXER |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e3 |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Normal Position | NO |
| Number of Channels | 8 |
| Number of Functions | 1 |
| On-state Resistance Match-Nom | 6.8Ω |
| On-state Resistance-Max (Ron) | 300Ω |
| Output | SEPARATE OUTPUT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Signal Current-Max | 0.035A |
| Supply Current-Max (Isup) | 0.8mA |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Switch-off Time-Max | 80ns |
| Switch-on Time-Max | 80ns |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## AD7501KNZ Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AD7501KNZ:
suggested
Frequently Asked Questions
How many analog input channels does the AD7501KNZ support and how are they addressed?
The AD7501KNZ supports 8 single-ended analog input channels selected via a 3-bit binary address on pins A0, A1, and A2, plus an active-low enable input. All 8 channels share a single common output pin, enabling a microcontroller to multiplex 8 analog signals to one ADC using only 3 digital address lines, reducing GPIO consumption in multi-channel measurement systems.
What supply voltage does the AD7501KNZ require and what analog signal range can it pass?
The AD7501KNZ operates from dual ±15 V supplies with a nominal negative supply of -15 V and positive supply of +15 V. This dual-supply configuration allows the device to pass analog signals spanning ±10 V, making it compatible with standard instrumentation amplifier outputs and precision ADC input ranges in industrial measurement systems without signal clipping or level shifting.
What is the typical on-resistance of the AD7501KNZ and how does it affect measurement accuracy?
The AD7501KNZ CMOS switch has a typical on-resistance of approximately 150 ohms to 300 ohms per channel. When driving high-impedance ADC inputs, this on-resistance introduces negligible voltage error because input current is near zero. However, for applications with source impedances below 1 kohm, the on-resistance forms a divider that can introduce a gain error of several tenths of a percent, requiring a buffer amplifier between the mux output and ADC.
Is the AD7501KNZ still in production and what modern alternatives exist if it is end-of-life?
The AD7501KNZ is a legacy device from Analog Devices' classic CMOS mux family and has a YTEOL rating of 0, indicating limited remaining production life. Modern pin-compatible or functionally equivalent alternatives include the ADG508A or MAX308 8-channel multiplexers, which offer lower on-resistance below 100 ohms, faster switching times under 200 ns, and wider temperature ranges down to -40°C versus the AD7501's 0°C to 70°C commercial grade.
For a portable multi-channel sensor logger design, would AD7501KNZ be appropriate or should an engineer use a single-supply mux?
The AD7501KNZ requires dual ±15 V supplies, consuming significant power in a portable design and requiring two voltage rails. For battery-powered sensor loggers operating from a single 3.3 V or 5 V supply, single-supply multiplexers such as the ADG708 (3 V to 5.5 V, 8 channels, 4 ohm on-resistance) are more appropriate. The AD7501KNZ is best retained in existing benchtop instrument designs already using ±15 V power planes.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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