Part A
ADTL082ARZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 6310 PCS
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The ADTL082ARZ and ADTL084JR are both JFET-input operational amplifiers from the same manufacturer family, sharing identical supply voltage ranges, input bias current characteristics, and slew rate performance. The primary distinction is channel count: the ADTL082ARZ is a dual op-amp in an 8-lead SOIC package, while the ADTL084JR is a quad op-amp in a 14-lead SOIC package. For applications requiring only two channels, the ADTL082ARZ is a direct functional substitute; for four-channel designs, the ADTL084JR remains necessary. Validation of package footprint and channel count requirements is recommended before substitution.
Channel Count
Not compatible
Package Type
Not compatible
Supply Voltage Range
High match
Input Bias Current
High match
Parts at a glance
Part B
ADTL084JR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5372 PCS
- Package
- SOIC-14
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADTL082ARZ | ADTL084JR | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (dual) | 4 (quad) | Channel count determines how many independent signal paths can be processed; a dual cannot directly replace a quad in multi-channel circuits. |
| Package / Mounting Type | 8-lead SOIC (surface mount) | 14-lead SOIC (surface mount) | Different package footprints and pin counts mean the parts are not drop-in compatible on the same PCB layout. |
| Input Offset Voltage (max) | 6 mV | 6 mV | Offset voltage affects DC accuracy; matching values indicate similar precision for DC-coupled applications. |
| Input Bias Current (typ) | 5 pA | 5 pA | Very low JFET input bias current suits high-impedance sensor and buffer circuits; identical values support similar input loading behavior. |
| Gain Bandwidth Product | 3 MHz | 3 MHz | GBW sets the achievable closed-loop bandwidth; equal values mean comparable AC performance per amplifier. |
| Slew Rate | 13 V/µs | 13 V/µs | Slew rate limits large-signal response; matching values indicate similar transient handling capability. |
| Supply Voltage Range | ±4 V to ±18 V (or 8 V to 36 V single supply) | ±4 V to ±18 V (or 8 V to 36 V single supply) | Compatible supply ranges allow operation in the same power rails, supporting substitutability in system design. |
| Operating Temperature Range | -40 °C to +125 °C | 0 °C to +70 °C | The wider industrial range of the ADTL082ARZ versus the commercial range of the ADTL084JR affects suitability for harsh or extended-temperature environments. |
| Input Voltage Noise Density | 16 nV/√Hz (at 1 kHz) | 16 nV/√Hz (at 1 kHz) | Noise density impacts signal-to-noise ratio in low-level signal chains; equal values indicate comparable noise performance. |
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 | ADTL082ARZ | ADTL084JR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 4 |
| Slew Rate | 20V/µs | 20V/µs |
| Gain Bandwidth Product | 5 MHz | 5 MHz |
| Current - Input Bias | 2 pA | 2 pA |
| Voltage - Input Offset | 1.5 mV | 1.5 mV |
| Supply Current | 1.2mA (x2 Channels) | 1.2mA (x4 Channels) |
| Current - Output / Channel | 27 mA | 27 mA |
| Voltage - Supply Span(Min) | 8 V | 8 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 125°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the main differences between the ADTL082ARZ and the ADTL084JR?
The ADTL082ARZ is a dual (2-channel) JFET-input operational amplifier supplied in an 8-lead SOIC package, while the ADTL084JR is a quad (4-channel) JFET-input operational amplifier supplied in a 14-lead SOIC package. Both are members of the same JFET-input op-amp family with similar per-channel AC and DC performance, but they differ in channel count, package size, and pinout.
Are the ADTL082ARZ and ADTL084JR pin-compatible?
No. The ADTL082ARZ uses an 8-lead SOIC pinout for two amplifiers, whereas the ADTL084JR uses a 14-lead SOIC pinout for four amplifiers. The package body widths and pin counts differ, so they cannot be interchanged on the same PCB land pattern without a layout change.
Do the ADTL082ARZ and ADTL084JR share the same JFET-input operational amplifier characteristics?
Yes. Both devices are JFET-input operational amplifiers offering low input bias current, high input impedance, and low input offset voltage, making them suitable for high-impedance signal conditioning, active filters, and sample-and-hold circuits. Per-channel specifications are closely matched across the family, though the ADTL084JR integrates four channels in one package.
What supply voltage range do the ADTL082ARZ and ADTL084JR support?
Both devices operate from dual supplies typically spanning ±4 V to ±18 V (or equivalent single-supply rails), consistent with the standard JFET-input op-amp family ratings. Designers should confirm the exact supply limits against the manufacturer datasheet for the specific grade before finalizing the design.
Which device should be selected for a multi-channel design?
The ADTL084JR is preferable when four amplifier channels are needed in a single package, reducing board space and component count. The ADTL082ARZ is appropriate when only two channels are required, allowing a smaller 8-lead SOIC footprint and simpler routing.
Are the ADTL082ARZ and ADTL084JR RoHS compliant?
Both the ADTL082ARZ and ADTL084JR are offered in RoHS-compliant SOIC packages, as indicated by the "Z" and "R" suffix conventions in the Analog Devices ordering codes. Customers should verify the specific orderable part number against the manufacturer's product page or datasheet to confirm compliance for their procurement requirements.
Can the ADTL082ARZ be used as a drop-in replacement for one channel of the ADTL084JR?
Functionally, a single channel of the ADTL082ARZ matches the per-channel behavior of the ADTL084JR, so it can serve as a substitute for one channel in a circuit. However, it is not a drop-in replacement at the package level because the pinouts and package sizes differ; the PCB layout must be redesigned accordingly.