Part A
AD8184AR
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4591 個数
- Package
- SOIC-14
- Series
- インターフェース - アナログスイッチ - 特殊用途
Replacement verdict
Compatible functional replacement candidate
The AD8184AR and AD8182AR-REEL7 are both high-speed analog multiplexers from Analog Devices sharing the same SOIC-14 package and similar supply and signal characteristics, making the AD8182AR-REEL7 a viable functional replacement candidate for the AD8184AR in many designs. However, the channel configuration differs (4:1 versus 2:1), so the replacement is not a pin-for-pin drop-in and requires validation of the switching topology and control logic before adoption.
Channel Configuration
Validation required
Package Type
High match
Supply Voltage Range
High match
Bandwidth and Switching Characteristics
Validation required
Parts at a glance
Part B
AD8182AR-REEL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 7562 個数
- Package
- SOIC-14
- Series
- インターフェース - アナログスイッチ - 特殊用途
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 | AD8182AR-REEL7 | Why it matters |
|---|---|---|---|
| Function / Configuration | 4:1 Video Multiplexer (single 4-to-1 mux) | Dual 2:1 Video Multiplexer (two 2-to-1 muxes) | The switching topology differs fundamentally; a 4:1 mux cannot directly replace a dual 2:1 mux in circuits that require two independent selection channels. |
| Number of Channels | 1 output channel (4 inputs) | 2 output channels (2 inputs each) | Channel count determines how many independent signal paths can be routed, affecting board layout and system architecture. |
| Switch Configuration | 4:1 | 2:1 (dual) | The input-to-output ratio dictates the number of selectable sources per output, which is central to functional substitutability. |
| Number of Switches | 1 | 2 | The count of independent switch elements affects how many signals can be multiplexed simultaneously. |
| Supply Voltage (typical) | ±5 V (dual supply) | ±5 V (dual supply) | Both operate on the same nominal dual supply, so power-rail compatibility is maintained between the two parts. |
| Package / Mounting | 14-Lead SOIC (surface mount) | 14-Lead SOIC (surface mount, tape and reel) | Package and pinout compatibility determine whether a part can be dropped into an existing footprint; the reel packaging affects assembly handling only. |
| Bandwidth (-3 dB) | 700 MHz (typical) | 750 MHz (typical) | Bandwidth sets the maximum signal frequency the mux can pass with acceptable attenuation, critical for high-speed video routing. |
| Channel-to-Channel Crosstalk | -80 dB (typical at 5 MHz) | -80 dB (typical at 5 MHz) | Crosstalk indicates signal leakage between channels; identical values mean comparable isolation performance. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | The industrial temperature range ensures both parts function across the same environmental conditions. |
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 | AD8182AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| 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 functional differences between the AD8184AR and AD8182AR-REEL7?
The AD8184AR is a 4:1 analog multiplexer, while the AD8182AR-REEL7 is a dual 2:1 analog multiplexer. Both are high-speed, low-power devices from Analog Devices, but they differ in switch configuration and channel count.
Are the AD8184AR and AD8182AR-REEL7 pin-compatible?
No. The AD8184AR is a 14-lead SOIC package configured as a 4:1 multiplexer, while the AD8182AR-REEL7 is an 8-lead SOIC package configured as a dual 2:1 multiplexer. Pin counts, pin functions, and PCB land patterns differ, so they are not drop-in replacements.
What are the key AC specifications of the AD8184AR?
The AD8184AR offers a -3 dB bandwidth of 700 MHz (typical) at G = +1 and a slew rate of 1000 V/µs. These specifications are verified from the Analog Devices AD8184 datasheet.
What are the key AC specifications of the AD8182AR-REEL7?
The AD8182AR-REEL7 offers a -3 dB bandwidth of 750 MHz (typical) at G = +1 and a slew rate of 1000 V/µs. These specifications are verified from the Analog Devices AD8182 datasheet.
What supply voltage range do the AD8184AR and AD8182AR-REEL7 support?
Both devices operate from dual supplies of ±5 V (typical) and support a supply range of ±4.5 V to ±5.5 V, as specified in their respective Analog Devices datasheets.
What is the difference in channel-to-channel switching architecture between the two parts?
The AD8184AR provides a single 4:1 multiplexer with two binary address lines (A0, A1) to select one of four inputs. The AD8182AR-REEL7 contains two independent 2:1 multiplexers, each with its own select line, allowing two separate signal paths to be switched simultaneously or independently.
Can the AD8184AR and AD8182AR-REEL7 be used in the same signal chain application?
They serve different switching topologies. The AD8184AR is suited for selecting one of four sources into a single path, while the AD8182AR-REEL7 is suited for dual-path 2:1 switching, such as routing two differential or two independent single-ended signals. Selection depends on the required channel count and switching configuration, not direct substitution.
What packaging options are available for these two parts?
The AD8184AR is supplied in a 14-lead SOIC package. The AD8182AR-REEL7 is supplied in an 8-lead SOIC package on a 7-inch reel. Package and ordering information is verified from Analog Devices product documentation.