Part A
AD8512ARMZ
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 3032 PCS
- Package
- MSOP-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Replacement verdict
Compatible functional replacement candidate
The AD8512ARMZ and AD8510ARM-REEL are both dual/quad precision JFET-input operational amplifiers from the same AD851x family, sharing identical core amplifier characteristics such as low offset voltage, low input bias current, and wide bandwidth. While the AD8512ARMZ is a dual-channel device and the AD8510ARM-REEL is a single-channel device, they are functionally compatible in applications where channel count is not a constraint, with package and pinout differences requiring layout validation.
Channel Count
Validation required
Amplifier Characteristics
High match
Package Type
Validation required
Operating Temperature Range
High match
Parts at a glance
Part B
AD8510ARM-REEL
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 6999 PCS
- Package
- TSSOP-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8512ARMZ | AD8510ARM-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 board layout expecting one channel, and vice versa. |
| Input Offset Voltage (max) | 0.8 mV | 0.8 mV | Low offset voltage minimizes DC error in precision signal chains; matching values indicate comparable DC accuracy. |
| Input Bias Current (typ) | 25 pA | 25 pA | Very low bias current is critical for high-impedance sensor and photodiode front-ends; identical values mean similar input loading behavior. |
| Gain Bandwidth Product | 8 MHz | 8 MHz | Sets the achievable closed-loop bandwidth and speed; equal GBW means comparable AC performance and stability characteristics. |
| Slew Rate | 20 V/µs | 20 V/µs | Governs large-signal transient response and full-power bandwidth; matching slew rates indicate similar dynamic behavior. |
| Supply Voltage Range | ±5 V to ±15 V (dual) | ±5 V to ±15 V (dual) | Defines compatibility with the system power rails; identical ranges allow the same supply design to be reused. |
| Input Voltage Noise Density | 8 nV/√Hz | 8 nV/√Hz | Determines noise floor in low-level signal amplification; equal noise density means comparable SNR performance. |
| Package / Pin Count | 8-Lead MSOP | 8-Lead MSOP | Although both use an 8-lead MSOP, the pinout differs between single and dual configurations, so footprint compatibility does not guarantee functional drop-in replacement. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Confirms both parts are rated for industrial/extended temperature environments; matching ranges support use in the same thermal 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 | AD8512ARMZ | AD8510ARM-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 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 | 100 µV |
| Supply Current | 2.2mA (x2 Channels) | 2.2mA |
| Current - Output / Channel | 70 mA | 70 mA |
| Voltage - Supply Span(Min) | 10 V | 9 V |
| Voltage - Supply Span(Max) | 30 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 AD8512ARMZ and the AD8510ARM-REEL?
The AD8512ARMZ is a dual-channel, low-noise, low-input-bias-current operational amplifier in an 8-lead MSOP (RM) package, supplied in tubes. The AD8510ARM-REEL is a single-channel version of the same amplifier family in the same 8-lead MSOP package, supplied on tape and reel for automated assembly. The primary differences are channel count (dual vs. single) and packaging format (tube vs. reel).
Are the AD8512ARMZ and AD8510ARM-REEL pin-compatible?
No. Although both use the 8-lead MSOP (RM) package, the AD8512ARMZ is a dual op amp with both amplifiers' inputs and outputs assigned to the eight pins, while the AD8510ARM-REEL is a single op amp whose pinout includes null and no-connect pins. The pin functions differ, so they are not drop-in replacements for each other.
Do both parts share the same amplifier core specifications?
Yes. Both are members of the AD8510/AD8512/AD8513 family and share the same core amplifier design, including low input bias current (typically a few picoamps at room temperature), low noise, and wide bandwidth. The AD8512ARMZ integrates two of these amplifiers in one package, while the AD8510ARM-REEL contains one.
What is the difference in packaging between the AD8512ARMZ and the AD8510ARM-REEL?
The AD8512ARMZ is supplied in standard tube packaging, which is typically used for low-to-medium volume handling and prototyping. The AD8510ARM-REEL is supplied on tape and reel, which is intended for high-volume automated pick-and-place assembly lines. The "REEL" suffix in the AD8510ARM-REEL part number indicates tape-and-reel delivery.
Can the AD8510ARM-REEL be used to replace one channel of the AD8512ARMZ in an existing design?
Not directly. Because the two devices have different pinouts in the same 8-lead MSOP package, substituting a single AD8510ARM-REEL for one channel of an AD8512ARMZ requires a PCB layout change to match the single amplifier's pin functions. A direct drop-in substitution is not possible without verifying pin assignments against the respective datasheets.
Which part should be selected for a dual-channel low-noise signal chain?
The AD8512ARMZ should be selected when two matched low-noise amplifiers are required in a single 8-lead MSOP package, reducing board space and component count. The AD8510ARM-REEL is a single amplifier and would require two devices to achieve the same channel count, using more board area.
Are both parts available in the same 8-lead MSOP package type?
Yes. Both the AD8512ARMZ and the AD8510ARM-REEL are offered in the 8-lead MSOP package, denoted by the "RM" code in the part number. However, the internal pin assignments differ between the dual and single versions, so the package outline is the same but the pin functions are not interchangeable.