Part A
ADTL082ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 6310 件
- 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 ADTL082ARZ and ADTL084JRZ are both JFET-input operational amplifiers from the same Analog Devices TL08x family, sharing identical per-channel AC and DC characteristics, supply range, and input bias behavior. The ADTL084JRZ integrates four amplifiers in a single package versus two in the ADTL082ARZ, so it can serve as a functional replacement where board space and pinout permit, but it is not a pin-for-pin drop-in and requires layout validation before substitution.
Channel Count
Not compatible
Package Type
Not compatible
Supply Voltage Range
High match
Input Offset Voltage
High match
Parts at a glance
Part B
ADTL084JRZ
ADI公司
- Lifecycle
- Active
- Stock
- 4531 件
- Package
- SOIC-14
- 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 | ADTL082ARZ | ADTL084JRZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 4 (Quad) | Determines how many independent op-amp channels are available in a single package, directly affecting circuit density and channel count. |
| Package / Mounting Type | 8-Lead SOIC (Surface Mount) | 14-Lead SOIC (Surface Mount) | Footprint and pin count must match the PCB layout; a different package cannot be dropped into the same board location. |
| Supply Current per Amplifier (Typical) | 1.4 mA | 1.4 mA | Quiescent current affects total power consumption; the quad device draws roughly double the total supply current of the dual. |
| Input Offset Voltage (Max) | 5 mV | 5 mV | Offset voltage limits DC accuracy; matching values indicate comparable precision in signal conditioning applications. |
| Gain Bandwidth Product | 3 MHz | 3 MHz | GBW sets the maximum usable frequency for a given closed-loop gain; identical values mean equivalent AC performance per channel. |
| Slew Rate | 13 V/µs | 13 V/µs | Slew rate limits large-signal response speed; matching values ensure equivalent transient behavior in both parts. |
| Input Bias Current (Typical) | 30 pA | 30 pA | Low bias current (JFET input) minimizes errors in high-impedance circuits; identical values indicate equivalent input characteristics. |
| 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) | Defines the operating voltage window; matching ranges allow the parts to be used in the same power supply architecture. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Determines environmental robustness; identical ratings mean both parts suit the same industrial temperature conditions. |
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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 | ADTL082ARZ | ADTL084JRZ |
|---|---|---|
| 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 key differences between the ADTL082ARZ and ADTL084JRZ?
The ADTL082ARZ is a dual-channel JFET-input operational amplifier in an 8-lead SOIC package, while the ADTL084JRZ is a quad-channel JFET-input op amp in a 14-lead SOIC package. Both share the same JFET input stage architecture and similar electrical characteristics per channel, but differ in channel count, package size, and pin count.
Are the ADTL082ARZ and ADTL084JRZ pin-compatible?
No. The ADTL082ARZ uses an 8-lead SOIC package with dual-channel pinout, and the ADTL084JRZ uses a 14-lead SOIC package with quad-channel pinout. The package footprints and pin assignments differ, so they are not drop-in replacements for each other.
What is the input bias current characteristic of these JFET-input op amps?
Both the ADTL082ARZ and ADTL084JRZ are JFET-input operational amplifiers designed for low input bias current, making them suitable for high-impedance signal conditioning applications. Designers should consult the respective manufacturer datasheets for the exact specified input bias current limits over temperature.
Can the ADTL082ARZ be used where a quad op amp like the ADTL084JRZ is required?
Not directly. The ADTL082ARZ provides only two channels, whereas the ADTL084JRZ provides four channels in a single package. Replacing a quad device with a dual device would require two ADTL082ARZ packages and a redesigned PCB layout to accommodate the additional packages and routing.
Do both devices operate from the same supply voltage range?
Both are JFET-input op amps from the same ADTL08x family and are intended for similar supply voltage operating ranges. However, exact minimum and maximum supply voltage ratings should be verified against the official manufacturer datasheet for each specific part number before design use.
Which package types do the ADTL082ARZ and ADTL084JRZ use?
The ADTL082ARZ is supplied in an 8-lead SOIC package, and the ADTL084JRZ is supplied in a 14-lead SOIC package. Both are surface-mount SOIC packages, but the lead count and body width differ, affecting PCB land pattern design.
Are these devices suitable for high-impedance sensor interfacing?
Yes. The JFET input stage of both the ADTL082ARZ and ADTL084JRZ provides low input bias current and high input impedance, which are advantageous for high-impedance sensor and transducer interfacing. Verify the specific input impedance and bias current specifications in the manufacturer datasheet for the target design.