Part A
AD8041ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3656 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8042AR-REEL is a dual-channel counterpart to the single-channel AD8041ARZ, sharing the same voltage-feedback architecture, supply range, and bandwidth class. It can serve as a functional substitute where a second channel is acceptable, but the differing channel count, package footprint, and per-channel supply current require board-level validation before substitution.
Channel Count
Validation required
Amplifier Architecture
High match
Package Type
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8042AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7334 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 | AD8041ARZ | AD8042AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | Determines how many independent signal channels are available in a single package; a dual amplifier can replace two singles but not vice versa. |
| Package / Mounting Type | 8-SOIC (surface mount) | 8-SOIC (surface mount) | Both use the same 8-lead SOIC footprint, but pinouts differ between single and dual devices, so board layout compatibility must be checked. |
| -3 dB Bandwidth | 160 MHz | 160 MHz | Sets the maximum usable signal frequency; matching bandwidth supports similar high-speed signal handling in either part. |
| Slew Rate | 160 V/µs | 225 V/µs | Higher slew rate enables faster large-signal response and lower distortion at high frequencies; the dual part offers more headroom. |
| Supply Voltage Range | 3 V to 12 V (single) / ±1.5 V to ±6 V (dual) | 3 V to 12 V (single) / ±1.5 V to ±6 V (dual) | Defines the operating supply window; identical ranges allow the parts to be used in the same power rails. |
| Quiescent Supply Current (per amplifier) | 6.8 mA | 6.8 mA | Affects power budget; per-amplifier current is the same, but the dual device draws roughly twice the total current. |
| Input Offset Voltage (max) | 5 mV | 5 mV | Determines DC accuracy; matching offset specs means similar precision in DC-coupled applications. |
| Output Current (short-circuit) | 50 mA | 50 mA | Indicates drive capability for loads; equal output current supports similar load-driving performance. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines environmental limits; identical ranges allow use in the same temperature environments. |
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 | AD8041ARZ | AD8042AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 170V/µs | 225V/µs |
| Gain Bandwidth Product | - | 90 MHz |
| -3 dB Bandwidth | 170 MHz | 170 MHz |
| Current - Input Bias | 1.2 µA | 1.2 µA |
| Voltage - Input Offset | 2 mV | 3 mV |
| Supply Current | 5.8mA | 6mA (x2 Channels) |
| Current - Output / Channel | 50 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 AD8041ARZ and AD8042AR-REEL?
The AD8041ARZ is a single-channel, voltage-feedback operational amplifier in an 8-lead SOIC package, while the AD8042AR-REEL is a dual-channel version of the same amplifier family supplied in tape-and-reel packaging for automated assembly. The AD8041ARZ provides one amplifier per package, whereas the AD8042AR-REEL integrates two independent amplifiers in a single package.
Are the AD8041ARZ and AD8042AR-REEL electrically identical per amplifier channel?
Yes. Both devices are members of the AD804x family and share the same core amplifier design, offering comparable AC and DC performance per channel, including similar gain-bandwidth product, slew rate, and input characteristics as specified in the respective Analog Devices datasheets. The primary differences are channel count and packaging format.
What is the supply voltage range for these amplifiers?
Both the AD8041ARZ and AD8042AR-REEL operate from a single supply of +3 V to +12 V or a dual supply of ±1.5 V to ±6 V, as specified in the Analog Devices datasheets. This makes them suitable for a range of low-voltage and portable signal-conditioning applications.
Can the AD8042AR-REEL be used to replace two AD8041ARZ devices in a design?
Functionally, the AD8042AR-REEL provides two amplifiers in one package, which can replace two AD8041ARZ devices where board space and channel count are the only considerations. However, the pinout, package footprint, and thermal characteristics differ, so the PCB layout must be redesigned and validated against the AD8042 datasheet before substitution.
What packaging options distinguish the AD8041ARZ from the AD8042AR-REEL?
The AD8041ARZ is supplied in an 8-lead SOIC package in tube or standard reel quantities, while the AD8042AR-REEL is a dual amplifier offered in an 8-lead SOIC package in tape-and-reel format optimized for high-volume automated pick-and-place assembly. The "REEL" suffix indicates tape-and-reel delivery.
Are these amplifiers unity-gain stable?
Yes. Both the AD8041ARZ and AD8042AR-REEL are voltage-feedback amplifiers that are unity-gain stable, allowing them to be configured as buffers or in low-gain stages without external compensation, per the Analog Devices datasheets.
What are typical applications for the AD8041ARZ and AD8042AR-REEL?
These amplifiers are commonly used in video and imaging signal chains, active filters, ADC drivers, portable instrumentation, and general-purpose signal conditioning where wide bandwidth and low distortion are required. The single-channel AD8041ARZ suits space-constrained single-path designs, while the dual AD8042AR-REEL suits multi-channel systems requiring matched amplifier pairs.