Part A
AD8184AR
ADI公司
- Lifecycle
- Active
- Stock
- 4591 件
- Package
- SOIC-14
- Series
- 介面-類比開關-專用
Replacement verdict
Not a drop-in replacement
The AD8184AR and AD8182ARZ-R7 are not drop-in replacements for one another. Although both are analog multiplexers from Analog Devices in similar SOIC packages, they differ in channel configuration, gain architecture, and switching control, so the AD8182ARZ-R7 cannot be substituted directly for the AD8184AR without circuit redesign and validation.
Different channel configuration
Different gain architecture
Different control logic
Different bandwidth
Parts at a glance
Part B
AD8182ARZ-R7
ADI公司
- Lifecycle
- Active
- Stock
- 9363 件
- Package
- SOIC-14
- Series
- 介面-類比開關-專用
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 | AD8182ARZ-R7 | Why it matters |
|---|---|---|---|
| Function / Configuration | 4:1 multiplexer (4 inputs to 1 output) | 2:1 multiplexer (dual 2:1, 2 inputs to 1 output per channel) | The switching topology determines how many signal sources can be routed to an output, so these parts are not directly interchangeable in a given circuit. |
| Number of Channels | 1 | 2 | Channel count affects how many independent signal paths can be switched, which is fundamental to system architecture. |
| Inputs per Channel | 4 | 2 | The number of selectable inputs per channel defines the multiplexing depth and the required control logic. |
| -3 dB Bandwidth | 700 MHz | 750 MHz | Bandwidth limits the maximum signal frequency that can be passed with acceptable attenuation, critical for video and high-speed signal routing. |
| Slew Rate | 700 V/µs | 1000 V/µs | Slew rate determines how fast large signal transitions can be reproduced, affecting distortion at high frequencies. |
| Supply Voltage Range | ±5 V to ±15 V (dual supply) | ±5 V to ±15 V (dual supply) | Supply range must match the system rails to ensure proper operation and signal headroom. |
| Package / Mounting | 14-Lead SOIC (surface mount) | 14-Lead SOIC (surface mount) | Package and pinout compatibility determine whether a part can be dropped into an existing PCB footprint. |
| Output Type | Voltage feedback, buffered output | Voltage feedback, buffered output | Output drive characteristics affect the ability to drive cables and downstream loads without additional buffering. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | The temperature range must cover the application environment to guarantee specified performance and reliability. |
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 | AD8184AR | AD8182ARZ-R7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Obsolete | Active |
| Applications | Video | Video |
| Multiplexer / Demultiplexer Circuit | 4:1 | 2:1 |
| Number of Channels | 1 | 2 |
| Voltage - Supply, Dual (V±) | ±4V ~ 6V | ±4V ~ 6V |
| -3 dB Bandwidth | 700MHz | 780MHz |
| Features | Buffered | Buffered |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD8184AR and AD8182ARZ-R7?
The AD8184AR is a 4:1 analog multiplexer, while the AD8182ARZ-R7 is a dual 2:1 analog multiplexer. The AD8184AR switches one of four differential inputs to a single output, whereas the AD8182ARZ-R7 contains two independent 2:1 multiplexers. Both are high-speed bipolar devices from Analog Devices, but they differ in channel configuration, pinout, and package options.
Are the AD8184AR and AD8182ARZ-R7 pin-compatible?
No. The AD8184AR is a 4:1 multiplexer typically supplied in a 14-lead SOIC package, while the AD8182ARZ-R7 is a dual 2:1 multiplexer supplied in an 8-lead SOIC package. The pin counts and pin functions differ, so they are not drop-in replacements for each other.
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. Its channel switching time is typically 25 ns, making it suitable for high-speed video and signal routing applications.
What are the key AC specifications of the AD8182ARZ-R7?
The AD8182ARZ-R7 provides a -3 dB bandwidth of 750 MHz (typical) and a slew rate of 750 V/µs. Its switching time is typically 20 ns, supporting high-speed 2:1 multiplexing in video and communication systems.
What supply voltage do the AD8184AR and AD8182ARZ-R7 require?
Both devices operate from dual supplies of ±5 V (typical) and support a supply range of ±4.5 V to ±5.5 V. They are bipolar analog multiplexers designed for ±5 V operation in high-speed signal chains.
Can the AD8184AR and AD8182ARZ-R7 be used in video switching applications?
Yes. Both parts are specified for high-speed analog signal switching and are commonly used in video multiplexing, RGB routing, and broadcast equipment. The AD8184AR handles 4:1 selection, while the AD8182ARZ-R7 provides two independent 2:1 selections, allowing flexible routing of composite or component video signals.
What is the difference in channel configuration between the two parts?
The AD8184AR is a single 4:1 multiplexer with four inputs and one output. The AD8182ARZ-R7 contains two separate 2:1 multiplexers, each with two inputs and one output, enabling dual-channel switching or differential signal routing in a single package.
Are the AD8184AR and AD8182ARZ-R7 RoHS compliant?
The AD8182ARZ-R7 is supplied in a RoHS-compliant SOIC package, as indicated by the "Z" suffix in the part number. The AD8184AR is an older non-RoHS grade; designers requiring RoHS compliance should verify the specific ordering code or select the AD8184ARZ variant where available.