Part A
AD8174ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4355 PCS
- Package
- SOIC-14
- Series
- Interface - Especializada
Replacement verdict
Compatible functional replacement candidate
The AD8174ARZ and AD8170AR-REEL are functionally related analog multiplexer/amplifier devices from the same manufacturer family, sharing a common SOIC-14 footprint and similar supply and signal-path characteristics. However, they differ in channel configuration and internal architecture, so the AD8170AR-REEL can serve as a functional candidate only after the designer validates channel count, switching behavior, and gain configuration against the target application requirements.
Channel Configuration
Validation required
Package Type
High match
Supply Voltage Range
High match
Signal Path Architecture
Validation required
Parts at a glance
Part B
AD8170AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9485 PCS
- Package
- SOIC-8
- Series
- Interface - Especializada
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8174ARZ | AD8170AR-REEL | Why it matters |
|---|---|---|---|
| Number of Channels | 4 | 2 | Determines how many independent signal paths the multiplexer can switch; a 4-channel part cannot directly replace a 2-channel part in a multi-input system. |
| Configuration | 4:1 Multiplexer | 2:1 Multiplexer | Defines the input-to-output switching ratio; the two parts serve different routing topologies and are not functionally interchangeable. |
| -3 dB Bandwidth | 250 MHz | 250 MHz | Sets the maximum signal frequency the mux can pass with acceptable attenuation; matching bandwidth means similar high-speed signal handling. |
| Slew Rate | 1000 V/µs | 1000 V/µs | Governs how fast the output can track large signal transitions; identical slew rate indicates comparable transient performance. |
| Supply Voltage Range | ±5 V to ±15 V (dual) | ±5 V to ±15 V (dual) | Must match the system power rails; identical ranges allow either part to operate in the same supply environment. |
| Package | 14-Lead SOIC | 8-Lead SOIC | Footprint and pin count differ, so board layout and assembly are not drop-in compatible between the two parts. |
| Output Enable / Disable | Yes (high-impedance disable) | Yes (high-impedance disable) | Allows the output to be tri-stated for bus sharing or power saving; both support this feature for multiplexed bus architectures. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental envelope for reliable operation; matching ranges suit the same industrial-grade applications. |
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 | AD8174ARZ | AD8170AR-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Applications | Multiplexer with Amplifier | Multiplexer with Amplifier |
| Voltage - Supply | ±4V ~ 6V | ±4V ~ 6V |
Frequently asked questions
What are the key differences between the AD8174ARZ and AD8170AR-REEL?
The AD8174ARZ is a quad, low-power, high-speed video amplifier with an internal multiplexer, offered in a 14-lead SOIC package and specified over the industrial temperature range. The AD8170AR-REEL is a dual, low-power, high-speed video amplifier with an internal multiplexer, supplied in tape-and-reel packaging for automated assembly. The primary differences are channel count (quad vs. dual), package/packaging format, and the associated pinout and power consumption characteristics documented in the respective Analog Devices datasheets.
Are the AD8174ARZ and AD8170AR-REEL pin-compatible?
No. The AD8174ARZ is a 14-lead SOIC device, while the AD8170AR-REEL is a dual-channel device in an 8-lead SOIC package. Because the package sizes, pin counts, and pin functions differ, they are not pin-compatible and cannot be interchanged on the same PCB footprint without redesign.
What is the difference in channel count and multiplexer configuration?
The AD8174ARZ integrates four video amplifiers with a 4:1 multiplexer, allowing selection among four input channels. The AD8170AR-REEL integrates two video amplifiers with a 2:1 multiplexer, allowing selection between two input channels. The channel count and mux ratio are defined in the Analog Devices datasheets for each part.
Do both parts support the same supply voltage range?
Both devices are designed for operation on ±5 V dual supplies (or equivalent single-supply configurations as specified by the manufacturer). Designers should confirm the exact recommended operating conditions, including supply tolerances and power dissipation, in the respective Analog Devices datasheets before finalizing a design.
How does power consumption compare between the two devices?
Because the AD8174ARZ contains four amplifiers and the AD8170AR-REEL contains two, the quad device typically dissipates more total quiescent power than the dual device under the same supply conditions. Exact quiescent current and power dissipation figures should be taken from the Analog Devices datasheets for each part rather than assumed.
What are the typical applications for each device?
The AD8174ARZ is suited to multi-input video switching applications such as RGB routing, video distribution, and display input selection where four channels must be multiplexed. The AD8170AR-REEL is suited to two-input video switching applications such as input selection in monitors, projectors, and set-top boxes. Both are intended for high-speed video signal routing per Analog Devices documentation.
Why is the AD8170AR-REEL supplied in tape-and-reel format?
The "-REEL" suffix indicates tape-and-reel packaging, which is intended for high-volume automated pick-and-place assembly lines. The AD8174ARZ is supplied in standard tube or tray packaging as indicated by its ordering code. Packaging format affects assembly handling but not the electrical specifications of the device.
Can the AD8170AR-REEL be used as a drop-in replacement for the AD8174ARZ?
No. The two devices differ in channel count, package size, pin count, and pinout, so the AD8170AR-REEL cannot be used as a drop-in replacement for the AD8174ARZ. Any substitution requires verifying pin functions, supply requirements, multiplexer control logic, and PCB layout against the Analog Devices datasheets for both parts.