Part A
AD8170ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4615 Stückzahl
- Package
- SOIC-8
- Series
- Schnittstelle für Spezialisiert
Replacement verdict
Compatible functional replacement candidate
The AD8174ARZ-R7 is a viable functional replacement candidate for the AD8170ARZ in many designs, as both are pin-compatible analog multiplexers in the same SOIC-8 package with comparable supply and signal characteristics. However, the AD8174ARZ-R7 offers a higher bandwidth and faster switching speed, while the AD8170ARZ provides a lower supply current. Designers should validate dynamic performance and power budget requirements before final substitution.
Package Type
High match
Supply Voltage Range
High match
Bandwidth
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8174ARZ-R7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4206 Stückzahl
- Package
- SOIC-14
- Series
- Schnittstelle für Spezialisiert
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8170ARZ | AD8174ARZ-R7 | Why it matters |
|---|---|---|---|
| Number of Channels | 2 (1x 2:1 multiplexer) | 4 (1x 4:1 multiplexer) | Determines how many input signals can be routed to the output; a 4:1 mux supports twice the input selection of a 2:1 mux. |
| Multiplexer Configuration | 2:1 | 4:1 | Defines the switching topology; the two parts are not directly interchangeable when the application requires a specific input count. |
| -3 dB Bandwidth | 250 MHz | 250 MHz | Sets the maximum signal frequency the mux can pass with acceptable attenuation; both parts offer comparable high-speed performance. |
| Slew Rate | 1000 V/µs | 1000 V/µs | Indicates how fast the output can respond to large signal changes; identical slew rates mean similar transient behavior. |
| Supply Voltage Range | ±5 V to ±15 V (dual) | ±5 V to ±15 V (dual) | Determines compatibility with the system power rails; matching ranges allow use in the same supply environment. |
| Package / Mounting | 8-Lead SOIC (surface mount) | 14-Lead SOIC (surface mount) | Footprint and pin count differ, so PCB layout changes are required when substituting one part for the other. |
| 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 state) | Yes (high-impedance output state) | Allows multiplexing onto a shared bus; both parts support disabling the output for bus sharing. |
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 | AD8170ARZ | AD8174ARZ-R7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| 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 AD8170ARZ and AD8174ARZ-R7?
The AD8170ARZ is a single 2:1 multiplexer amplifier in an 8-lead SOIC package, while the AD8174ARZ-R7 is a quad 2:1 multiplexer amplifier in a 14-lead SOIC package supplied in tape-and-reel format. The AD8174 integrates four independent multiplexer amplifiers in one device, whereas the AD8170 provides one channel.
Are the AD8170ARZ and AD8174ARZ-R7 pin-compatible?
No. The AD8170ARZ uses an 8-lead SOIC package and the AD8174ARZ-R7 uses a 14-lead SOIC package, so the pin counts, pin functions, and PCB land patterns differ. They are not drop-in replacements for each other.
What is the supply voltage range for these devices?
Both the AD8170 and AD8174 are specified for operation on dual supplies of ±5 V and single supplies of +5 V to +12 V, per the Analog Devices datasheets. Designs should confirm the exact operating conditions against the manufacturer datasheet for the selected grade.
What bandwidth do the AD8170ARZ and AD8174ARZ-R7 provide?
Both parts are wideband multiplexer amplifiers with a −3 dB bandwidth of approximately 250 MHz (gain of +1 or +2 depending on configuration) as specified in the Analog Devices datasheets. Verify the exact test conditions and gain setting in the datasheet before finalizing a design.
Can the AD8174ARZ-R7 replace the AD8170ARZ in an existing design?
Not directly. The AD8174ARZ-R7 is a quad device in a 14-lead SOIC package, while the AD8170ARZ is a single device in an 8-lead SOIC package. A replacement requires a new PCB layout, review of unused channels, and validation against the target design requirements.
What is the difference between the ARZ suffix and the ARZ-R7 suffix?
The ARZ suffix denotes the RoHS-compliant 8-lead or 14-lead SOIC package grade. The -R7 suffix on the AD8174ARZ-R7 indicates tape-and-reel packaging in 7-inch reels for automated assembly, while the AD8170ARZ is supplied in standard tube or tray packaging depending on the order quantity.
Are these multiplexer amplifiers suitable for video signal routing?
Yes. The AD8170 and AD8174 are designed for wideband signal switching, including video multiplexing, with high slew rate and low differential gain and phase error as specified in the Analog Devices datasheets. Confirm the required video standards and loading conditions against the datasheet.