Part A
AD8602DRZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6122 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8606AR-REEL is a strong functional replacement candidate for the AD8602DRZ, sharing the same dual-channel CMOS op-amp architecture, 8-lead SOIC footprint, and unity-gain-stable design. Both parts operate over the industrial temperature range and offer rail-to-rail input/output behavior, so substitution is viable for most signal-conditioning applications. Designers should validate supply voltage headroom, quiescent current budget, and bandwidth margin against the target circuit before committing to production.
Amplifier Architecture
High match
Package Type
High match
Supply Voltage Range
Validation required
Bandwidth and Slew Rate
Validation required
Parts at a glance
Part B
AD8606AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9189 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 | AD8602DRZ | AD8606AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 2 (Dual) | Both are dual op-amps, so channel count is compatible for substitution. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Matching supply range ensures the part operates in the same system rails. |
| Input Offset Voltage (Max) | 500 µV | 65 µV | Lower offset improves DC precision; the AD8606 is significantly more precise. |
| Gain Bandwidth Product | 8.4 MHz | 10 MHz | Bandwidth affects achievable signal frequency and closed-loop response. |
| Input Bias Current (Typ) | 0.2 pA | 0.2 pA | Very low CMOS input bias current suits high-impedance sensor interfaces. |
| Input Voltage Noise Density | 33 nV/√Hz | 8 nV/√Hz | Lower noise density benefits low-level signal amplification; AD8606 is quieter. |
| Quiescent Current per Amplifier | 750 µA | 1.2 mA | Supply current impacts power budget in battery-powered designs. |
| Package / Mounting | 8-SOIC (Surface Mount) | 8-SOIC (Surface Mount) | Same package footprint allows drop-in PCB replacement. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature ratings ensure equivalent environmental robustness. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8602DRZ | AD8606AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | DigiTrim® | DigiTrim® |
| Part Status | Active | Obsolete |
| Amplifier Type | CMOS | CMOS |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 6V/µs | 5V/µs |
| Gain Bandwidth Product | 8.4 MHz | 10 MHz |
| Current - Input Bias | 0.2 pA | 1 pA |
| Voltage - Input Offset | 1.3 mV | 80 µV |
| Supply Current | 750µA (x2 Channels) | 1mA (x2 Channels) |
| Current - Output / Channel | 50 mA | 80 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD8602DRZ and the AD8606AR-REEL?
The AD8602DRZ is a dual, low-noise, CMOS operational amplifier supplied in an 8-lead SOIC package (DRZ suffix), while the AD8606AR-REEL is a dual, low-noise, precision CMOS op amp supplied in an 8-lead SOIC package and delivered on tape and reel. Both are dual devices from Analog Devices, but they differ in their specified performance grades and packaging format.
Are the AD8602DRZ and AD8606AR-REEL pin-compatible?
Both devices are offered in 8-lead SOIC packages with the standard dual op amp pinout (1=OUT A, 2=-IN A, 3=+IN A, 4=V-, 5=+IN B, 6=-IN B, 7=OUT B, 8=V+). Designers should confirm the exact package drawing in the respective Analog Devices datasheets before assuming drop-in compatibility.
What is the supply voltage range for these two amplifiers?
Both the AD8602 and AD8606 are specified for single-supply operation from 2.7 V to 5.5 V, and they also support dual-supply operation within that total range. This makes them suitable for low-voltage portable and battery-powered signal conditioning applications.
How do the input offset voltage specifications compare?
The AD8606 is a precision grade device with a specified maximum input offset voltage of 65 µV, while the AD8602 is specified with a maximum input offset voltage of 500 µV. Designs requiring tighter DC accuracy should account for this difference when selecting between the two parts.
What are the gain bandwidth and slew rate of these amplifiers?
Both the AD8602 and AD8606 feature a gain bandwidth product of 8 MHz and a slew rate of 5 V/µs. These specifications support moderate-speed filtering, buffering, and sensor interface applications.
What is the difference in packaging delivery between the two part numbers?
The AD8602DRZ is supplied in tube or standard bulk packaging in the 8-lead SOIC (DRZ) package, whereas the AD8606AR-REEL suffix indicates tape-and-reel packaging for automated pick-and-place assembly. The reel quantity should be confirmed from the Analog Devices datasheet or distributor listing.
Are these amplifiers suitable for low-noise audio and sensor applications?
Yes. Both devices are CMOS low-noise op amps with a specified voltage noise density of approximately 8 nV/√Hz at 1 kHz, making them appropriate for low-level sensor signal conditioning and audio-band filtering where verified datasheet noise figures are acceptable.
Can the AD8606AR-REEL be used as a direct replacement for the AD8602DRZ in an existing design?
Because both are dual op amps in 8-lead SOIC with the same pinout and similar AC specifications, substitution is often feasible, but the tighter offset voltage of the AD8606 and any grade-specific limits must be validated against the original design requirements and the official Analog Devices datasheets before replacement.