Part A
AD8510ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1804 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8510ARZ and AD8510BR are functionally interchangeable precision JFET-input operational amplifiers sharing the same core die, package, and pinout, with the BR grade offering tighter offset voltage and drift specifications. Both parts are suitable for direct substitution in most precision signal-conditioning designs, though applications with stringent DC accuracy requirements should validate the tighter grade tolerance before committing to the ARZ variant.
Amplifier Type and Input Stage
High match
Package and Pinout
High match
Supply Voltage Range
High match
Offset Voltage Grade
Validation required
Parts at a glance
Part B
AD8510BR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5150 PCS
- Package
- SOIC-8
- 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 | AD8510ARZ | AD8510BR | Why it matters |
|---|---|---|---|
| Input Offset Voltage (Vos, max) | 0.8 mV | 0.4 mV | Lower offset voltage improves DC accuracy; the B grade offers tighter offset, which matters for precision signal chains. |
| Input Offset Voltage Drift (max) | 10 µV/°C | 5 µV/°C | Lower drift maintains accuracy over temperature; the B grade is preferable for wide-temperature precision applications. |
| Input Bias Current (max) | 100 pA | 50 pA | Lower bias current reduces errors in high-impedance circuits; the B grade is better for high-source-impedance sensors. |
| Input Noise Voltage Density (typ) | 8 nV/√Hz | 8 nV/√Hz | Noise density affects low-level signal resolution; both grades share similar noise performance. |
| Gain Bandwidth Product (typ) | 8 MHz | 8 MHz | GBW determines achievable closed-loop bandwidth; identical values mean similar dynamic performance. |
| Slew Rate (typ) | 20 V/µs | 20 V/µs | Slew rate limits large-signal response; matching values indicate equivalent transient behavior. |
| Supply Voltage Range | ±5 V to ±15 V | ±5 V to ±15 V | Operating supply range determines compatibility with system rails; identical ranges allow drop-in substitution. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Temperature range defines environmental suitability; identical ranges support the same application environments. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package compatibility ensures PCB footprint interchangeability; identical packages allow direct board replacement. |
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 | AD8510ARZ | AD8510BR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 1 | 1 |
| Slew Rate | 20V/µs | 20V/µs |
| Gain Bandwidth Product | 8 MHz | 8 MHz |
| Current - Input Bias | 25 pA | 25 pA |
| Voltage - Input Offset | 100 µV | 80 µV |
| Supply Current | 2.2mA | 2.2mA |
| Current - Output / Channel | 70 mA | 70 mA |
| Voltage - Supply Span(Min) | 9 V | 9 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8510ARZ and AD8510BR?
Both are single, precision JFET-input operational amplifiers from Analog Devices in an 8-lead SOIC package. The primary difference is grade: the AD8510ARZ is the standard A-grade, while the AD8510BR is the higher-grade B version with tighter guaranteed specifications, notably lower offset voltage and offset drift. The AD8510BR is specified over the extended industrial temperature range of −40°C to +125°C, whereas the AD8510ARZ is specified over −40°C to +85°C.
Are the AD8510ARZ and AD8510BR pin-compatible and package-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package with identical pinout (NULL, −IN, +IN, V−, NULL, OUT, V+, NULL). They share the same PCB land pattern, so a board designed for one can physically accept the other without layout changes.
How do the offset voltage specifications compare between the two grades?
The AD8510ARZ (A-grade) guarantees a maximum input offset voltage of 400 µV, while the AD8510BR (B-grade) guarantees a maximum input offset voltage of 100 µV. The B-grade therefore offers tighter DC precision for applications sensitive to input offset error.
Do the AD8510ARZ and AD8510BR differ in offset voltage drift?
Yes. The AD8510BR specifies a maximum input offset voltage drift of 1 µV/°C, while the AD8510ARZ specifies a maximum drift of 2 µV/°C. The B-grade provides better stability over temperature.
Are the AC specifications (bandwidth, slew rate, noise) the same for both grades?
Yes. Both grades share the same core amplifier design: 8 MHz unity-gain bandwidth, 2.5 V/µs slew rate, and low input voltage noise of approximately 8 nV/√Hz at 1 kHz. The grade distinction applies to DC precision and temperature range, not to the typical AC performance.
What is the supply voltage range and quiescent current for these amplifiers?
Both the AD8510ARZ and AD8510BR operate from a dual supply of ±4.5 V to ±18 V (or single supply of 9 V to 36 V) and draw a typical supply current of about 2.2 mA per amplifier. These ratings are common to both grades.
Can the AD8510ARZ be substituted with the AD8510BR in an existing design?
Yes, the AD8510BR is a drop-in replacement for the AD8510ARZ because they are pin- and package-compatible and share the same supply and AC characteristics. The B-grade offers equal or better DC precision and a wider specified temperature range, so substitution is generally acceptable, though the design's offset budget and operating temperature requirements should be confirmed against the datasheet.
Which grade should be selected for precision DC or wide-temperature applications?
For applications requiring tighter offset voltage (100 µV max), lower drift (1 µV/°C max), or operation up to +125°C, the AD8510BR is the appropriate choice. For general-purpose use within −40°C to +85°C where a 400 µV offset and 2 µV/°C drift are acceptable, the AD8510ARZ is sufficient.