Part A
AD8174ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4355 Stückzahl
- Package
- SOIC-14
- Series
- Schnittstelle für Spezialisiert
Replacement verdict
Compatible functional replacement candidate
The AD8174ARZ and AD8170ARZ-R7 are functionally related analog multiplexer/amplifier ICs 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 AD8174ARZ should be treated as a functional candidate rather than a guaranteed drop-in replacement. Designers should validate channel count, switching behavior, and gain configuration against the target application before substitution.
Channel Configuration
Validation required
Package Type
High match
Supply Voltage Range
High match
Signal Path Architecture
Validation required
Parts at a glance
Part B
AD8170ARZ-R7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4605 Stückzahl
- Package
- SOIC-8
- 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 | AD8174ARZ | AD8170ARZ-R7 | Why it matters |
|---|---|---|---|
| Number of Channels | 4 | 2 | Determines how many independent signal paths the multiplexer can switch; a 4-channel device can route twice as many inputs as a 2-channel device. |
| Configuration | 4:1 Multiplexer | 2:1 Multiplexer | Defines the switching topology; a 4:1 mux selects one of four inputs to a single output, while a 2:1 mux selects between two inputs. |
| Package / Mounting Type | 14-Lead SOIC (Surface Mount) | 8-Lead SOIC (Surface Mount) | Footprint and pin count differ, so the two parts are not drop-in replacements on the same PCB layout. |
| Supply Voltage Range | ±5 V to ±15 V (dual) or 10 V to 30 V (single) | ±5 V to ±15 V (dual) or 10 V to 30 V (single) | Both support the same wide supply range, allowing operation in a broad set of analog signal-chain designs. |
| -3 dB Bandwidth | 250 MHz | 250 MHz | Indicates the maximum signal frequency the mux can pass with minimal attenuation; identical bandwidth means comparable high-speed performance. |
| Slew Rate | 1000 V/µs | 1000 V/µs | High slew rate supports fast large-signal transitions; matching values indicate equivalent dynamic response. |
| On Resistance | ~10 Ω (typical) | ~10 Ω (typical) | Low on-resistance minimizes signal attenuation and distortion through the switch path; equal values mean similar signal integrity. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms both parts are rated for industrial temperature environments, enabling use in the same application conditions. |
| Channel-to-Channel Crosstalk | -80 dB (typical at 5 MHz) | -80 dB (typical at 5 MHz) | Low crosstalk ensures minimal interference between adjacent channels; identical performance supports comparable signal isolation. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8174ARZ | AD8170ARZ-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 AD8174ARZ and AD8170ARZ-R7?
The AD8174ARZ is a quad, low-power, high-speed video amplifier with an internal multiplexer, offered in a 14-lead SOIC package and supplied in tube form. The AD8170ARZ-R7 is a dual, low-power, high-speed video amplifier with an internal multiplexer, offered in an 8-lead SOIC package and supplied in tape-and-reel form. The primary differences are channel count (quad vs. dual), package pin count (14-lead vs. 8-lead), and packaging format (tube vs. tape-and-reel).
Are the AD8174ARZ and AD8170ARZ-R7 pin-compatible?
No. The AD8174ARZ uses a 14-lead SOIC package, while the AD8170ARZ-R7 uses an 8-lead SOIC package. The different pin counts and pin functions mean they are not pin-compatible and cannot be interchanged on the same PCB land pattern without redesign.
Can the AD8170ARZ-R7 be used as a direct substitute for the AD8174ARZ?
No. The AD8174ARZ provides four amplifier channels with multiplexing, whereas the AD8170ARZ-R7 provides only two channels. Substitution would require verifying channel count requirements, pinout, package footprint, and all datasheet parameters against the target design; a direct drop-in replacement is not possible.
What is the difference in packaging between the AD8174ARZ and AD8170ARZ-R7?
The AD8174ARZ is supplied in a 14-lead SOIC package in tube format. The AD8170ARZ-R7 is supplied in an 8-lead SOIC package in tape-and-reel format (the "-R7" suffix denotes tape-and-reel packaging). The packaging format affects handling and automated assembly but not the electrical function of the devices.
Do both devices operate from the same supply voltages?
Both the AD8174 and AD8170 are designed to operate from ±5 V dual supplies or a single +5 V supply, consistent with their datasheet specifications. Designers should confirm the exact supply range and current consumption for each variant in the respective manufacturer datasheet before finalizing a design.
Which device is better suited for space-constrained designs?
The AD8170ARZ-R7, with its 8-lead SOIC package and dual-channel configuration, occupies less board area than the 14-lead SOIC AD8174ARZ. For designs requiring fewer channels and minimal footprint, the AD8170ARZ-R7 is the more compact option; for designs requiring four channels, the AD8174ARZ avoids the need for multiple packages.
Are both parts suitable for video signal processing applications?
Yes. Both the AD8174 and AD8170 are high-speed video amplifiers with internal multiplexers intended for video signal routing and processing. Their bandwidth and slew rate specifications in the manufacturer datasheets support video-frequency operation; designers should verify the specific bandwidth, gain, and switching parameters required by their application.