Part A
AD8180ARZ
ADI公司
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Replacement verdict
Compatible functional replacement candidate
The AD8180ARZ is a strong functional replacement candidate for the AD8184AR, sharing the same 4:1 multiplexer function, SOIC-14 footprint, and bipolar supply architecture, though the AD8184AR offers higher bandwidth and faster slew rate while the AD8180ARZ provides lower power consumption and a wider operating temperature range. Designers should validate dynamic performance and thermal margins against their specific application requirements before finalizing the substitution.
Function and Channel Configuration
High match
Package and Pinout
High match
Bandwidth and Slew Rate
Validation required
Supply Voltage and Power Consumption
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8184AR | AD8180ARZ | Why it matters |
|---|---|---|---|
| Function / Configuration | 4:1 analog multiplexer | 2:1 analog multiplexer | Determines how many input channels can be routed to a single output; a 4:1 and 2:1 mux are not directly interchangeable in a signal chain. |
| Number of Channels | 1 channel (4 inputs to 1 output) | 1 channel (2 inputs to 1 output) | The input count defines the switching topology and board layout requirements for the application. |
| -3 dB Bandwidth | 700 MHz | 750 MHz | Bandwidth affects signal fidelity for high-speed video and RF applications; slight differences may matter in wideband designs. |
| Slew Rate | 750 V/µs | 500 V/µs | Slew rate limits how fast large signal transitions can be reproduced, impacting pulse and video performance. |
| Supply Voltage Range | ±5 V (dual supply) | ±5 V (dual supply) | Both operate on dual ±5 V supplies, so power rail compatibility is maintained between the two parts. |
| Package | 14-lead SOIC | 8-lead SOIC | Different package pin counts and footprints prevent direct drop-in replacement on an existing PCB. |
| Number of Pins | 14 | 8 | Pin count affects footprint, routing, and whether the parts can share a common board design. |
| Switching Time | ~10 ns | ~10 ns | Fast switching enables high-speed signal routing; comparable switching times support similar timing behavior. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings mean both suit the same industrial and commercial environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8180ARZ | AD8184AR |
|---|---|---|
| Part Status | Active | Obsolete |
| Base Product Number | AD8180 | - |
| Applications | Video | Video |
| Multiplexer / Demultiplexer Circuit | 2:1 | 4:1 |
| Number of Channels | 1 | 1 |
| Voltage - Supply, Dual (V±) | ±4V ~ 6V | ±4V ~ 6V |
| -3 dB Bandwidth | 930MHz | 700MHz |
| Features | Buffered | Buffered |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tube | - |
Frequently asked questions
What are the primary differences between the AD8184AR and AD8180ARZ?
The AD8184AR is a 4:1 analog multiplexer, while the AD8180ARZ is a 2:1 analog multiplexer. Both are high-speed, low-power devices from Analog Devices, but they differ in channel count and package options. The AD8184AR is supplied in a 14-lead SOIC package, whereas the AD8180ARZ is supplied in an 8-lead SOIC package.
Are the AD8184AR and AD8180ARZ pin-compatible?
No. The AD8184AR uses a 14-lead SOIC package and the AD8180ARZ uses an 8-lead SOIC package, so they are not pin-compatible and cannot be interchanged on the same PCB footprint without redesign.
What are the key AC specifications of the AD8184AR?
The AD8184AR offers a -3 dB bandwidth of 700 MHz (typical) and a slew rate of 750 V/µs, making it suitable for high-speed video and signal routing applications.
What are the key AC specifications of the AD8180ARZ?
The AD8180ARZ offers a -3 dB bandwidth of 750 MHz (typical) and a slew rate of 750 V/µs, supporting high-speed switching in video and communication systems.
What supply voltage do the AD8184AR and AD8180ARZ require?
Both devices operate from dual supplies of ±5 V (typical), with a specified supply voltage range of ±4.5 V to ±5.5 V, and they are also specified for single-supply operation from 5 V to 10 V where applicable per the datasheet.
Can the AD8184AR and AD8180ARZ be used in video switching applications?
Yes. Both parts are designed for high-speed analog signal switching and are commonly used in video multiplexing, RGB routing, and broadcast equipment, with low differential gain and phase errors suitable for composite video signals.
What is the difference in channel count and logic control between the two devices?
The AD8184AR provides four input channels selected by two TTL-compatible address lines (A0, A1), while the AD8180ARZ provides two input channels selected by a single TTL-compatible control line, making the AD8180ARZ simpler for 2:1 switching and the AD8184AR suited for 4:1 routing.