Part A
AD8512ARMZ
ADI公司
- Lifecycle
- Active
- Stock
- 3032 件
- Package
- MSOP-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Replacement verdict
Compatible functional replacement candidate
The AD8512ARMZ and AD8510ARMZ-R2 are both dual/quad precision JFET-input operational amplifiers from the same AD851x family, sharing identical supply voltage range, input bias current characteristics, and MSOP-8 package footprint. The AD8512ARMZ is a dual-channel device while the AD8510ARMZ-R2 is a single-channel device, so channel count and per-channel quiescent current differ. The AD8512ARMZ is a viable functional replacement candidate for the AD8510ARMZ-R2 in applications where a dual amplifier can substitute for a single amplifier, but the channel count difference must be validated against the target circuit topology before substitution.
Channel Count
Validation required
Package Type
High match
Supply Voltage Range
High match
Input Bias Current
High match
Parts at a glance
Part B
AD8510ARMZ-R2
ADI公司
- Lifecycle
- Active
- Stock
- 2991 件
- Package
- TSSOP-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
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 | AD8510ARMZ-R2 | 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 suits high-impedance sensor and photodiode front ends; identical values mean similar loading on sensitive nodes. |
| Gain Bandwidth Product | 8 MHz | 8 MHz | Sets the achievable closed-loop bandwidth and small-signal speed; equal GBW means comparable AC performance. |
| Slew Rate | 20 V/µs | 20 V/µs | Governs large-signal transient response and full-power bandwidth; identical slew rate supports similar dynamic behavior. |
| Input Voltage Noise Density | 8 nV/√Hz | 8 nV/√Hz | Determines noise floor in low-level signal amplification; matching noise density means equivalent SNR performance. |
| Supply Voltage Range | ±5 V to ±15 V (dual) | ±5 V to ±15 V (dual) | Defines compatible power rails; identical ranges allow the same supply design to be reused. |
| Quiescent Current per Amplifier (typ) | 2.2 mA | 2.2 mA | Affects power budget and thermal load; equal per-amplifier current means similar power consumption per channel. |
| Package | 8-lead MSOP (RM) | 8-lead MSOP (RM) | Footprint and pinout must match for drop-in substitution; both use the same 8-lead MSOP package, though pin functions differ between single and dual devices. |
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 | AD8510ARMZ-R2 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,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 AD8510ARMZ-R2?
The AD8512ARMZ is a dual precision JFET-input operational amplifier, while the AD8510ARMZ-R2 is a single precision JFET-input operational amplifier. Both are offered in an 8-lead MSOP (RM) package, but the AD8512 integrates two amplifiers in one package, whereas the AD8510 contains one amplifier. The AD8510ARMZ-R2 is supplied in tape-and-reel packaging, while the AD8512ARMZ is supplied in tube packaging.
Are the AD8512ARMZ and AD8510ARMZ-R2 pin-compatible in the same MSOP footprint?
No. Although both devices use the 8-lead MSOP (RM) package, the pin assignments differ because the AD8512 is a dual amplifier and the AD8510 is a single amplifier. The AD8510 uses the standard single-op-amp pinout (including null pins), while the AD8512 uses a dual-op-amp pinout. They are not direct drop-in replacements for each other.
What are the key AC specifications of the AD8512ARMZ and AD8510ARMZ-R2?
Both devices share the same core amplifier design and offer a gain bandwidth product of 8 MHz and a slew rate of 20 V/µs. These specifications are common to the AD8510/AD8512/AD8513 family and apply to both the single AD8510ARMZ-R2 and the dual AD8512ARMZ.
What is the input bias current and input offset voltage performance of these amplifiers?
Both the AD8512ARMZ and AD8510ARMZ-R2 feature JFET inputs with very low input bias current, typically in the picoampere range, making them suitable for high-impedance sensor interfaces. The input offset voltage is low, typically in the microvolt range, supporting precision signal conditioning applications.
What supply voltage range do the AD8512ARMZ and AD8510ARMZ-R2 support?
Both devices operate from dual supplies of ±5 V to ±15 V, or equivalently from a single supply of 10 V to 30 V. This wide operating range allows use in both battery-powered and industrial signal-chain designs.
Can the AD8510ARMZ-R2 be used to replace one channel of an AD8512ARMZ in an existing dual-amplifier design?
Not directly. Because the pinouts differ between the single AD8510 and the dual AD8512 in the same 8-lead MSOP package, substituting one channel of the AD8512 with an AD8510ARMZ-R2 requires PCB layout changes. The electrical performance of the individual amplifier is comparable, but the package pin functions are not interchangeable.
What are the packaging and ordering differences between the AD8512ARMZ and AD8510ARMZ-R2?
The AD8512ARMZ is a dual amplifier supplied in an 8-lead MSOP tube format. The AD8510ARMZ-R2 is a single amplifier supplied in an 8-lead MSOP tape-and-reel format (the "-R2" suffix denotes reel packaging). The packaging choice affects assembly handling and inventory format rather than the electrical performance of the devices.