Part A
AD8184AR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4591 PCS
- Package
- SOIC-14
- Series
- Interface - interrupteur analogique - dédié
Replacement verdict
Compatible functional replacement candidate
The AD8182ARZ-RL is a viable functional replacement candidate for the AD8184AR in analog multiplexer applications, sharing the same SOIC-14 footprint, dual-supply voltage range, and high-speed buffered architecture. Designers should validate the channel configuration difference and confirm the exact gain configuration before committing to production, as the AD8184AR is a 4:1 multiplexer while the AD8182ARZ-RL is a 2:1 multiplexer.
Channel Configuration
Validation required
Package Type
High match
Supply Voltage Range
High match
Bandwidth
High match
Parts at a glance
Part B
AD8182ARZ-RL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2097 PCS
- Package
- SOIC-14
- Series
- Interface - interrupteur analogique - dédié
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-RL | Why it matters |
|---|---|---|---|
| Function / Configuration | 4:1 multiplexer (4-to-1 mux) | 2:1 multiplexer (dual 2-to-1 mux) | The switching topology determines how many inputs can be routed to an output, so these parts are not directly interchangeable in a signal-routing design. |
| Number of Channels | 1 output channel (4 inputs) | 2 output channels (2 inputs each) | Channel count affects how many independent signal paths can be switched, which is fundamental to circuit architecture. |
| -3 dB Bandwidth | 700 MHz | 750 MHz | Bandwidth sets the maximum signal frequency the mux can pass with acceptable attenuation, critical for video and high-speed signal chains. |
| Slew Rate | 700 V/µs | 1000 V/µs | Slew rate limits how fast large signal transitions can be reproduced, affecting distortion and settling in fast switching applications. |
| Supply Voltage Range | ±5 V (dual supply) | ±5 V (dual supply) | Supply range must match the system rails; both operate on ±5 V, so power-supply compatibility is maintained. |
| Package | 14-lead SOIC | 14-lead SOIC | Package footprint and pinout determine board-level drop-in compatibility; identical packages ease layout reuse. |
| On Resistance / Output Drive | Low on-resistance analog switch, high output current drive | Low on-resistance analog switch, high output current drive | On-resistance and drive capability affect signal integrity and the ability to drive downstream loads such as cables or ADCs. |
| Switching Control | 2-bit binary select (A0, A1) | Single select line per channel | Control-logic interface differs, requiring different GPIO drive schemes and firmware in the host system. |
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-RL |
|---|---|---|
| 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-RL?
The AD8184AR is a 4:1 analog multiplexer, while the AD8182ARZ-RL is a dual 2:1 analog multiplexer. The AD8184AR switches one of four differential inputs to a single output, whereas the AD8182ARZ-RL contains two independent 2:1 multiplexers. Both are high-speed bipolar devices from Analog Devices, but they differ in channel configuration, package, and operating temperature range.
Are the AD8184AR and AD8182ARZ-RL pin-compatible?
No. The AD8184AR is supplied in a 14-lead SOIC package, and the AD8182ARZ-RL is supplied in a 14-lead SOIC package as well, but their pin functions differ because the AD8184AR is a 4:1 multiplexer and the AD8182ARZ-RL is a dual 2:1 multiplexer. Pin assignments and control logic are not interchangeable, so they cannot be dropped into the same PCB layout without redesign.
What are the key AC specifications of the AD8184AR?
According to the Analog Devices datasheet, the AD8184AR offers a -3 dB bandwidth of 700 MHz (G = +1) and a slew rate of 750 V/µs. Channel switching time is typically 25 ns, and it operates from ±5 V supplies. These parameters make it suitable for high-speed video and signal routing applications.
What are the key AC specifications of the AD8182ARZ-RL?
Per the Analog Devices datasheet, the AD8182ARZ-RL provides a -3 dB bandwidth of 750 MHz (G = +1) and a slew rate of 750 V/µs. Its 2:1 switching time is typically 20 ns, and it operates from ±5 V supplies. The dual 2:1 configuration suits differential signal selection and high-speed routing.
What supply voltages do the AD8184AR and AD8182ARZ-RL require?
Both devices are specified for operation from ±5 V dual supplies. The Analog Devices datasheets list a nominal supply range of ±4.5 V to ±5.5 V for both parts. Neither device is specified for single-supply operation in the published datasheets.
What are the operating temperature ranges for these two parts?
The AD8184AR is specified over the industrial temperature range of -40°C to +85°C. The AD8182ARZ-RL is also specified over -40°C to +85°C. Both parts are offered in the extended industrial range per their respective Analog Devices datasheets.
Can the AD8184AR and AD8182ARZ-RL be used interchangeably in a design?
No. Because the AD8184AR is a 4:1 multiplexer and the AD8182ARZ-RL is a dual 2:1 multiplexer, their channel counts, control logic, and pin functions differ. Substitution requires verifying the signal routing topology, control interface, and PCB footprint against the manufacturer datasheets; they are not direct replacements.
What package options are available for the AD8184AR and AD8182ARZ-RL?
The AD8184AR is offered in a 14-lead SOIC package. The AD8182ARZ-RL is also offered in a 14-lead SOIC package, with the "-RL" suffix indicating tape-and-reel packaging. Both are surface-mount SOIC devices, but their internal channel configurations differ as noted above.