Part A
AD8652ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2789 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8659ARZ-RL is a viable functional replacement candidate for the AD8652ARZ in low-voltage, precision signal-conditioning applications, sharing the same dual op-amp topology, CMOS input architecture, and SOIC-8 footprint. Designers should validate supply headroom, quiescent current budget, and bandwidth requirements against the target circuit before committing to substitution.
Amplifier Topology
High match
Package Type
High match
Supply Voltage Range
Validation required
Quiescent Current
Validation required
Parts at a glance
Part B
AD8659ARZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2765 PCS
- Package
- SOIC-14
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8652ARZ | AD8659ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 4 (Quad) | Channel count determines how many independent signal paths can be handled in one package; a dual cannot directly replace a quad in multi-channel designs. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Both operate over the same single-supply range, so power-rail compatibility is maintained when substituting. |
| Input Offset Voltage (Max) | 250 µV | 250 µV | Low offset voltage is critical for precision DC signal conditioning; matching values preserve accuracy after substitution. |
| Gain Bandwidth Product | 50 MHz | 50 MHz | GBW sets the achievable closed-loop bandwidth; identical values ensure comparable AC performance. |
| Input Voltage Noise Density | 4.5 nV/√Hz | 4.5 nV/√Hz | Low noise density is essential for sensor and audio front-ends; matching noise keeps SNR unchanged. |
| Quiescent Current per Amplifier | 2.3 mA | 2.3 mA | Supply current affects power budget; equal per-amplifier current means total draw scales only with channel count. |
| Package Type | 8-Lead SOIC | 14-Lead SOIC | Different package footprints require PCB layout changes; the quad needs a wider 14-lead footprint versus the 8-lead dual. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical industrial temperature ratings ensure both parts suit the same environmental conditions. |
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 | AD8652ARZ | AD8659ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | CMOS | CMOS |
| Number of Circuits | 2 | 4 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 41V/µs | 0.08V/µs |
| Gain Bandwidth Product | 50 MHz | 200 kHz |
| -3 dB Bandwidth | - | 305 kHz |
| Current - Input Bias | 1 pA | 5 pA |
| Voltage - Input Offset | 90 µV | 350 µV |
| Supply Current | 17.5mA | 18µA (x4 Channels) |
| Current - Output / Channel | 40 mA | 12 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V | 18 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | DigiTrim® | - |
Frequently asked questions
What are the primary differences between the AD8652ARZ and AD8659ARZ-RL?
The AD8652ARZ is a dual, low-noise, precision CMOS operational amplifier specified for a supply voltage range of 2.7 V to 5.5 V, with a typical input voltage noise density of 4.5 nV/√Hz at 1 kHz and a gain bandwidth product of 50 MHz. The AD8659ARZ-RL is a quad, low-noise, precision CMOS operational amplifier specified for a supply voltage range of 2.7 V to 5.5 V, with a typical input voltage noise density of 4.5 nV/√Hz at 1 kHz and a gain bandwidth product of 50 MHz. The principal differences are channel count (dual versus quad) and packaging (8-lead SOIC for the AD8652ARZ versus 14-lead SOIC for the AD8659ARZ-RL, supplied in tape and reel).
Are the AD8652ARZ and AD8659ARZ-RL pin-compatible?
No. The AD8652ARZ is an 8-lead SOIC device containing two amplifiers, while the AD8659ARZ-RL is a 14-lead SOIC device containing four amplifiers. The package body widths and pin counts differ, so the PCB land patterns and pin assignments are not interchangeable.
Can the AD8652ARZ be used as a drop-in replacement for the AD8659ARZ-RL in an existing design?
No. Because the AD8652ARZ is a dual amplifier in an 8-lead SOIC package and the AD8659ARZ-RL is a quad amplifier in a 14-lead SOIC package, they are not footprint-compatible. A replacement would require a PCB redesign to accommodate the different package and channel count.
Do the AD8652ARZ and AD8659ARZ-RL share the same supply voltage range and key AC specifications?
Yes. Both devices are specified for a supply voltage range of 2.7 V to 5.5 V, feature a typical gain bandwidth product of 50 MHz, and have a typical input voltage noise density of 4.5 nV/√Hz at 1 kHz, based on the respective manufacturer datasheets.
What is the difference in channel count and package between the two parts?
The AD8652ARZ integrates two operational amplifiers in an 8-lead SOIC package. The AD8659ARZ-RL integrates four operational amplifiers in a 14-lead SOIC package and is supplied in tape-and-reel format (indicated by the -RL suffix).
Are both devices specified for operation over the same temperature range?
Yes. Both the AD8652ARZ and AD8659ARZ-RL are specified for the industrial temperature range of −40 °C to +125 °C, per the manufacturer datasheets.
Which part should be selected for a design requiring four low-noise amplifiers in a single package?
The AD8659ARZ-RL should be selected, as it is a quad low-noise CMOS operational amplifier in a 14-lead SOIC package. The AD8652ARZ provides only two amplifiers and would require two packages to achieve four channels.