Part A
AD8044AR-14
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4340 Stückzahl
- Package
- SOIC-14
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8041AR-REEL is a viable functional substitute for the AD8044AR-14 in single-channel signal-chain roles, sharing the same SOIC-14 footprint, unity-gain-stable voltage-feedback architecture, and rail-to-rail output swing. Designers should confirm the reduced channel count, lower quiescent current per amplifier, and the narrower gain-bandwidth product against their specific bandwidth and drive requirements before committing to production.
Package Type
High match
Channel Count
Validation required
Gain Bandwidth Product
Validation required
Output Swing
High match
Parts at a glance
Part B
AD8041AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 530 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8044AR-14 | AD8041AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 | 1 | Determines how many independent signal channels can be processed in one package; a quad device cannot be directly substituted where a single amplifier is required without redesign. |
| -3 dB Bandwidth | 150 MHz | 160 MHz | Sets the maximum usable signal frequency; similar bandwidths indicate comparable high-frequency performance for video and fast signal paths. |
| Slew Rate | 170 V/µs | 160 V/µs | Governs how quickly the output can respond to large signal steps; close values mean similar large-signal transient behavior. |
| Supply Voltage Range | 3 V to 12 V | 3 V to 12 V | Defines the allowable power supply window; matching ranges allow operation in the same system rails. |
| Input Offset Voltage (max) | 7.5 mV | 7.5 mV | Affects DC accuracy; identical offset specs mean comparable precision in DC-coupled applications. |
| Quiescent Supply Current per Amplifier | 3.4 mA | 3.4 mA | Impacts power budget; equal per-amplifier current means similar thermal and power design considerations. |
| Package / Pin Count | 14-Lead SOIC | 8-Lead SOIC | Footprint and pinout must match for board-level interchangeability; different packages require layout changes. |
| Output Current (typical) | 50 mA | 50 mA | Determines drive capability for loads such as cables and ADCs; matching values indicate similar load-driving strength. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms both parts are rated for the same environmental conditions, supporting use in industrial temperature environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8044AR-14 | AD8041AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 4 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 190V/µs | 170V/µs |
| -3 dB Bandwidth | 160 MHz | 170 MHz |
| Current - Input Bias | 2 µA | 1.2 µA |
| Voltage - Input Offset | 1.4 mV | 2 mV |
| Supply Current | 11.5mA | 5.8mA |
| Current - Output / Channel | 30 mA | 50 mA |
| Voltage - Supply Span(Min) | 3 V | 3 V |
| Voltage - Supply Span(Max) | 12 V | 12 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8044AR-14 and AD8041AR-REEL?
The AD8044AR-14 is a quad-channel, low-power, high-speed operational amplifier supplied in a 14-lead SOIC package, while the AD8041AR-REEL is a single-channel, high-speed operational amplifier with rail-to-rail output supplied in an 8-lead SOIC package on tape and reel. The AD8044 integrates four amplifiers in one package, whereas the AD8041 provides one amplifier per package.
Are the AD8044AR-14 and AD8041AR-REEL pin-compatible?
No. The AD8044AR-14 uses a 14-lead SOIC package containing four independent amplifiers, and the AD8041AR-REEL uses an 8-lead SOIC package containing a single amplifier. The pin counts, pin functions, and PCB land patterns differ, so they are not directly interchangeable.
What is the channel count of each device?
The AD8044AR-14 is a quad operational amplifier (four channels per package). The AD8041AR-REEL is a single operational amplifier (one channel per package).
How do the supply voltage and power requirements compare?
Both devices are designed for low-power, high-speed signal conditioning and operate from dual or single supplies within the manufacturer-specified range. The AD8044 integrates four amplifiers, so total quiescent current per package is higher than that of the single-channel AD8041, while per-amplifier power consumption is comparable. Designers should consult the respective Analog Devices datasheets for exact supply voltage ranges and quiescent current specifications.
Which device is better suited for multi-channel signal chains?
The AD8044AR-14 is better suited for multi-channel signal chains because it integrates four amplifiers in a single 14-lead SOIC package, reducing board space and component count. The AD8041AR-REEL, being a single-channel device, is more appropriate for applications requiring only one amplifier channel.
What packaging and ordering differences should be considered?
The AD8044AR-14 is supplied in a 14-lead SOIC tube/rail format, while the AD8041AR-REEL is supplied in an 8-lead SOIC tape-and-reel format intended for automated pick-and-place assembly. The package footprint and reel packaging differ, so PCB layout and assembly planning must account for each device's specific package.
Can the AD8041AR-REEL be used as a drop-in replacement for one channel of the AD8044AR-14?
No. Although both are high-speed operational amplifiers from Analog Devices, they differ in channel count, package type, pinout, and package footprint. A drop-in replacement is not possible without redesigning the PCB layout and validating all electrical parameters against the target application requirements.