Part A
AD8512ARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2506 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD8512ARZ and AD8512BR are functionally compatible dual precision JFET operational amplifiers sharing identical core specifications, including the same dual channel configuration, SOIC-8 package, and ±4.5 V to ±18 V supply range. The AD8512BR offers a tighter grade with lower offset voltage and improved offset drift, making it a suitable upgrade candidate for applications requiring enhanced DC precision, while the AD8512ARZ remains a valid drop-in alternative where standard grade tolerances are acceptable.
Amplifier Channel Count
High match
Package Type
High match
Supply Voltage Range
High match
Input Offset Voltage Grade
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8512ARZ | AD8512BR | Why it matters |
|---|---|---|---|
| Input Offset Voltage (max) | 0.8 mV | 0.4 mV | Lower offset voltage improves DC accuracy; the B grade offers tighter precision for high-accuracy 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 precision applications across temperature extremes. |
| Input Bias Current (max) | 100 pA | 50 pA | Lower bias current reduces errors in high-impedance circuits; the B grade suits more sensitive sensor and photodiode front-ends. |
| Input Noise Voltage Density (typ) | 8 nV/√Hz | 8 nV/√Hz | Noise density affects low-level signal resolution; both grades share similar noise performance for audio and instrumentation. |
| Gain Bandwidth Product (typ) | 8 MHz | 8 MHz | GBW determines achievable closed-loop bandwidth; identical values mean both grades support the same signal bandwidth. |
| Slew Rate (typ) | 20 V/µs | 20 V/µs | Slew rate limits large-signal response; matching values indicate equivalent dynamic behavior for both grades. |
| Supply Voltage Range | ±5 V to ±15 V | ±5 V to ±15 V | Operating supply range determines system compatibility; identical ranges allow drop-in substitution in the same rails. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Temperature range defines environmental robustness; identical ratings mean both grades suit the same industrial conditions. |
| Package / Mounting | 8-SOIC (surface mount) | 8-SOIC (surface mount) | Package compatibility ensures footprint interchangeability; identical SOIC packages allow direct board replacement. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8512ARZ | AD8512BR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| 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 (x2 Channels) | 2.2mA (x2 Channels) |
| Current - Output / Channel | 70 mA | 70 mA |
| Voltage - Supply Span(Min) | 10 V | 10 V |
| Voltage - Supply Span(Max) | 30 V | 30 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |