Part A
AD8532ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4055 Stückzahl
- Package
- SOP-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8531AR-REEL is a single-channel operational amplifier while the AD8532ARZ is a dual-channel device, so the two are not pin-for-pin interchangeable in existing dual-op-amp layouts. However, both parts share the same AD853x family core specifications, including 3 MHz gain bandwidth, rail-to-rail input and output, and 5 V single-supply operation, making the AD8531AR-REEL a viable functional substitute where only one amplifier channel is required and the board layout is redesigned accordingly.
Channel Count
Validation required
Gain Bandwidth Product
High match
Input/Output Swing
High match
Package Type
Validation required
Parts at a glance
Part B
AD8531AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9168 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 | AD8532ARZ | AD8531AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Determines how many independent op-amp channels are available in one package; a dual cannot directly replace a single in a one-channel circuit without layout changes. |
| Supply Voltage Range | 2.7 V to 6 V | 2.7 V to 6 V | Defines the operating supply window; matching ranges ensure the part works in the same power rail configuration. |
| Gain Bandwidth Product | 3 MHz | 3 MHz | Sets the achievable closed-loop bandwidth; identical GBW means similar AC performance and stability behavior. |
| Slew Rate | 5 V/µs | 5 V/µs | Governs large-signal transient response; matching slew rate preserves dynamic behavior in the application. |
| Input Offset Voltage (max) | 25 mV | 25 mV | Affects DC accuracy; identical offset spec means comparable precision in signal conditioning. |
| Input Bias Current | 1 pA (typ) | 1 pA (typ) | Low bias current is critical for high-impedance sensor interfaces; matching values preserve input loading characteristics. |
| Supply Current per Amplifier | 1.2 mA (typ) | 1.2 mA (typ) | Impacts power budget; equal per-amplifier current keeps total consumption predictable when channel count changes. |
| Package / Pin Count | 8-Lead SOIC | 8-Lead SOIC | Pin count and footprint affect board layout; both are 8-lead SOIC but pinout differs between single and dual, so direct drop-in is not possible. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures reliable operation across the same environmental conditions; matching ranges support equivalent application 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 | AD8532ARZ | AD8531AR-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 5V/µs | 5V/µs |
| Gain Bandwidth Product | 3 MHz | 3 MHz |
| Current - Input Bias | 5 pA | 5 pA |
| Voltage - Input Offset | 25 mV | 25 mV |
| Supply Current | 750µA (x2 Channels) | 750µA |
| Current - Output / Channel | 250 mA | 250 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 6 V | 6 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 AD8532ARZ and AD8531AR-REEL?
The AD8532ARZ is a dual-channel operational amplifier supplied in an 8-lead SOIC package, while the AD8531AR-REEL is a single-channel operational amplifier supplied in a 5-lead SOT-23 package on tape and reel. Both are members of the Analog Devices AD8531/AD8532/AD8534 family of rail-to-rail input/output amplifiers, but they differ in channel count, package, and pinout.
Do the AD8532ARZ and AD8531AR-REEL share the same electrical performance specifications?
Yes. Both devices are part of the same amplifier family and share the same core specifications, including a 3 MHz gain bandwidth product, rail-to-rail input and output swing, and operation from a single supply of 2.7 V to 6 V (or dual supplies of ±1.35 V to ±3 V). The primary differences are channel count and package.
Can the AD8531AR-REEL be used as a drop-in replacement for one channel of the AD8532ARZ?
No, not as a drop-in replacement. The AD8531AR-REEL is a single amplifier in a 5-lead SOT-23 package, whereas the AD8532ARZ is a dual amplifier in an 8-lead SOIC package. The package footprint, pin count, and pinout differ, so the PCB layout must be redesigned accordingly.
What supply voltage range do the AD8532ARZ and AD8531AR-REEL support?
Both devices operate from a single supply of 2.7 V to 6 V, or from dual supplies of ±1.35 V to ±3 V, as specified in the Analog Devices AD8531/AD8532/AD8534 datasheet.
What is the gain bandwidth product of the AD8532ARZ and AD8531AR-REEL?
Both the AD8532ARZ and AD8531AR-REEL have a gain bandwidth product of 3 MHz, per the Analog Devices AD8531/AD8532/AD8534 datasheet.
Are the AD8532ARZ and AD8531AR-REEL specified for rail-to-rail input and output operation?
Yes. Both devices feature rail-to-rail input and output swing, allowing signals to span the full supply range, as documented in the Analog Devices AD8531/AD8532/AD8534 datasheet.
What are the package and packaging differences between the AD8532ARZ and AD8531AR-REEL?
The AD8532ARZ is supplied in an 8-lead SOIC package (the "RZ" suffix denotes the SOIC package). The AD8531AR-REEL is supplied in a 5-lead SOT-23 package (the "AR" suffix denotes SOT-23) and is delivered on tape and reel for automated assembly.