Part A
AD8174ARZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4355 PCS
- Package
- SOIC-14
- Series
- Interface - Specialized
Replacement verdict
Compatible functional replacement candidate
The AD8174ARZ and AD8170ARZ-RL are functionally comparable analog multiplexer amplifiers sharing the same core signal-path architecture, supply requirements, and SOIC-14 footprint, making the AD8174ARZ a viable replacement candidate for the AD8170ARZ-RL in most designs. Designers should confirm the channel-count and enable-logic differences against their specific application before committing to a drop-in substitution.
Channel Count
Validation required
Package Type
High match
Supply Voltage Range
High match
Control Logic Interface
Validation required
Parts at a glance
Part B
AD8170ARZ-RL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4199 PCS
- Package
- SOIC-8
- Series
- Interface - Specialized
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 | AD8170ARZ-RL | 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 system requiring four inputs. |
| Configuration | 4:1 Multiplexer | 2:1 Multiplexer | Defines the input-to-output routing ratio; the two parts serve different switching topologies and are not drop-in substitutes. |
| -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 swings; 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 the parts to operate in the same supply environment. |
| Package | 14-Lead SOIC | 8-Lead SOIC | Footprint and pin count differ, so board layout and pinout compatibility must be verified before substitution. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices, so they suit the same assembly process, though package size still differs. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms both parts are rated for the same industrial temperature environment. |
| Output Enable / Disable | Yes (high-impedance output disable) | Yes (high-impedance output disable) | Allows multiplexing onto a shared bus; both support high-impedance disable for bus sharing. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8174ARZ | AD8170ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Active |
| 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 AD8170ARZ-RL?
The AD8174ARZ is a quad 4:1 multiplexer amplifier in a 14-lead SOIC package, while the AD8170ARZ-RL is a dual 2:1 multiplexer amplifier in an 8-lead SOIC package supplied in tape-and-reel form. The AD8174ARZ provides four channels with 4:1 selection, whereas the AD8170ARZ-RL provides two channels with 2:1 selection. Both are members of Analog Devices' AD817x family of high-speed multiplexer amplifiers.
Are the AD8174ARZ and AD8170ARZ-RL pin-compatible?
No. The AD8174ARZ uses a 14-lead SOIC package and the AD8170ARZ-RL uses an 8-lead SOIC package, so they have different pin counts, pin functions, and PCB land patterns. They are not drop-in replacements for each other.
What is the difference between the "ARZ" and "ARZ-RL" suffixes?
The "ARZ" suffix indicates an SOIC package in the standard tube or tray shipping form, while "ARZ-RL" indicates the same SOIC package supplied in tape-and-reel packaging for automated assembly. The "-RL" designation refers to packaging format, not to electrical or functional differences.
Do both parts operate from the same supply voltages?
Both devices are designed to operate from ±5 V dual supplies or a single +5 V supply, consistent with the AD817x multiplexer amplifier family. Designers should confirm the exact supply range in the respective Analog Devices datasheets before finalizing a design.
Which part should be selected for a 4-channel signal routing application?
The AD8174ARZ is the appropriate choice for 4-channel routing because it integrates a quad 4:1 multiplexer amplifier. The AD8170ARZ-RL only provides two channels with 2:1 selection and cannot handle four-channel selection in a single device.
Are both parts suitable for high-speed video or signal switching?
Yes. Both the AD8174ARZ and AD8170ARZ-RL belong to Analog Devices' high-speed multiplexer amplifier family intended for video and high-speed signal switching. Specific bandwidth, slew rate, and switching time parameters should be verified against the individual datasheets for the target design.
Can the AD8170ARZ-RL be used as a substitute for the AD8174ARZ in an existing design?
No, not as a direct substitute. The AD8170ARZ-RL has fewer channels (two vs. four), a different multiplexer ratio (2:1 vs. 4:1), and a different package and pinout (8-lead vs. 14-lead SOIC). Any substitution would require a redesign of the signal routing and PCB layout.