Part A
AD8042AR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4001 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD8042AR and AD8042AR-REEL7 are the same AD8042 dual operational amplifier die in the same 8-lead SOIC package, differing only in packaging format (tube vs. tape-and-reel). They are functionally interchangeable for design and qualification purposes, with the reel variant suited to automated high-volume assembly lines.
Amplifier Core Specifications
High match
Package and Pinout
High match
Operating Temperature Range
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD8042AR-REEL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5944 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8042AR | AD8042AR-REEL7 | Why it matters |
|---|---|---|---|
| Amplifier Type | Voltage Feedback | Voltage Feedback | Both parts use the same voltage-feedback topology, so AC and DC behavior is functionally interchangeable. |
| Number of Channels | 2 | 2 | Dual-channel configuration must match for pinout and circuit topology compatibility. |
| -3 dB Bandwidth | 160 MHz | 160 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle without significant attenuation. |
| Slew Rate | 225 V/µs | 225 V/µs | Slew rate limits large-signal response speed and affects distortion at high frequencies. |
| Input Offset Voltage (max) | 6 mV | 6 mV | Offset voltage affects DC accuracy; identical limits ensure equivalent precision in signal chains. |
| Supply Voltage Range | 3 V to 12 V | 3 V to 12 V | The supply range must match to ensure the part operates correctly in the target system's power rails. |
| Supply Current per Amplifier | 6.5 mA | 6.5 mA | Quiescent current impacts power budget and thermal design; identical values mean no change in power consumption. |
| Package / Mounting | 8-SOIC (Surface Mount) | 8-SOIC (Surface Mount) | Package and mounting style must match for PCB footprint and assembly compatibility. |
| Packaging / Delivery Form | Tube | Tape & Reel (7-inch reel) | Delivery form affects manufacturing handling; reel packaging suits automated pick-and-place assembly while tubes suit low-volume or manual use. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8042AR | AD8042AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 225V/µs | 225V/µs |
| Gain Bandwidth Product | 90 MHz | 90 MHz |
| -3 dB Bandwidth | 170 MHz | 170 MHz |
| Current - Input Bias | 1.2 µA | 1.2 µA |
| Voltage - Input Offset | 3 mV | 3 mV |
| Supply Current | 6mA (x2 Channels) | 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 is the difference between AD8042AR and AD8042AR-REEL7?
Both parts are the same AD8042 dual operational amplifier die in the same 8-lead SOIC (R-8) package. The difference is packaging format: AD8042AR is supplied in tube/rail form, while AD8042AR-REEL7 is supplied on a 7-inch tape-and-reel carrier for automated pick-and-place assembly. Electrical specifications are identical.
Are AD8042AR and AD8042AR-REEL7 electrically and functionally interchangeable?
Yes. Both order codes refer to the identical AD8042AR silicon in the 8-lead SOIC package, so they share the same datasheet specifications, pinout, and performance. The only distinction is the shipping container (tube vs. 7-inch reel).
What are the key specifications of the AD8042?
The AD8042 is a dual, low-power, voltage-feedback operational amplifier with a 160 MHz unity-gain bandwidth (−3 dB), 200 V/µs slew rate, and 5.5 nV/√Hz input voltage noise. It operates on supplies from 3 V to 12 V (±1.5 V to ±6 V) and is specified for operation over the −40 °C to +85 °C industrial temperature range.
What package does the AD8042AR use, and is it RoHS compliant?
The AD8042AR is offered in an 8-lead SOIC package (R-8 suffix). The standard AD8042AR and AD8042AR-REEL7 order codes are RoHS-compliant per the manufacturer's product documentation; designers should confirm the specific order code's compliance status against the current datasheet or PCN before finalizing.
Why would a designer choose AD8042AR-REEL7 over AD8042AR?
AD8042AR-REEL7 is intended for high-volume, automated SMT production lines that require tape-and-reel packaging for pick-and-place equipment. AD8042AR in tubes is typically used for prototyping, low-volume runs, or manual assembly. The choice is purely a manufacturing/logistics decision, not a performance one.
Can AD8042AR and AD8042AR-REEL7 be mixed on the same PCB assembly?
Yes. Because both order codes contain the identical AD8042AR device in the same 8-lead SOIC package, they are physically and electrically identical and can be used interchangeably on the same board without any layout or performance impact.
What are the typical applications for the AD8042?
The AD8042 is commonly used in video line drivers, active filters, ADC input buffers, portable instrumentation, and general-purpose signal conditioning where a dual low-power amplifier with wide bandwidth and fast slew rate is required. Its 3 V to 12 V supply range suits both battery-powered and ±5 V systems.