Part A
ADA4075-2ARZ
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 1638 PCS
- Package
- SOIC-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Replacement verdict
Not a drop-in replacement
The ADA4075-2ARZ and ADA4004-1ARZ-RL are not functionally interchangeable: the ADA4075-2ARZ is a dual low-noise, low-power op amp in an 8-lead SOIC package, while the ADA4004-1ARZ-RL is a single precision op amp in an 8-lead SOIC package. The differing channel count, supply current, noise and bandwidth characteristics, and gain-bandwidth product mean the ADA4004-1ARZ-RL cannot directly replace the ADA4075-2ARZ in existing dual-channel circuit designs without redesign and validation.
Different channel count
Different supply current
Different noise profile
Different bandwidth
Parts at a glance
Part B
ADA4004-1ARZ-RL
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 2512 PCS
- Package
- SOIC-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 | ADA4075-2ARZ | ADA4004-1ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Channel count determines whether the part can directly replace the other in a circuit; a dual cannot drop into a single-amplifier footprint and vice versa. |
| Input Offset Voltage (Max) | 125 µV | 100 µV | Lower offset voltage improves DC accuracy; a difference here affects precision in sensor and instrumentation signal chains. |
| Input Voltage Noise Density (1 kHz) | 2.8 nV/√Hz | 1.8 nV/√Hz | Noise density sets the achievable signal-to-noise ratio; the lower-noise part is preferable for low-level signal amplification. |
| Gain Bandwidth Product | 6.5 MHz | 12 MHz | GBW determines the closed-loop bandwidth achievable at a given gain; a higher GBW supports wider-bandwidth or higher-gain stages. |
| Slew Rate | 2.5 V/µs | 2.7 V/µs | Slew rate limits large-signal response and full-power bandwidth; differences affect transient fidelity in fast or large-swing signals. |
| Supply Current per Amplifier (Typ) | 0.9 mA | 1.7 mA | Quiescent current impacts power budget and thermal load; the lower-current part is advantageous in power-sensitive designs. |
| Supply Voltage Range | ±4.5 V to ±18 V (9 V to 36 V) | ±4.5 V to ±18 V (9 V to 36 V) | The usable supply window must match the system rails; identical ranges mean both can operate in the same power environment. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package and pinout must match for board-level interchangeability; identical packages simplify substitution but pin functions differ between single and dual. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | The temperature range must cover the application environment; matching ranges indicate equivalent environmental robustness. |
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 | ADA4075-2ARZ | ADA4004-1ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | iPolar® | iPolar® |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 1 |
| Slew Rate | 12V/µs | 2.7V/µs |
| Gain Bandwidth Product | 6.5 MHz | 12 MHz |
| Current - Input Bias | 30 nA | 40 nA |
| Voltage - Input Offset | 200 µV | 40 µV |
| Supply Current | 1.8mA (x2 Channels) | 2.2mA |
| Current - Output / Channel | 40 mA | 10 mA |
| Voltage - Supply Span(Min) | 9 V | 10 V |
| Voltage - Supply Span(Max) | 36 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 ADA4075-2ARZ and the ADA4004-1ARZ-RL?
The ADA4075-2ARZ is a dual low-power, low-noise operational amplifier in an 8-lead SOIC package, while the ADA4004-1ARZ-RL is a single precision operational amplifier in an 8-lead SOIC package supplied in tape-and-reel format. The primary differences are channel count (dual vs. single), package quantity/format, and the specific AC/DC performance specifications defined in their respective datasheets.
Can the ADA4075-2ARZ be used as a direct replacement for the ADA4004-1ARZ-RL?
No. The ADA4075-2ARZ is a dual op amp and the ADA4004-1ARZ-RL is a single op amp; their pinouts and channel configurations differ, so they are not pin-compatible or functionally interchangeable without redesigning the circuit and validating all parameters against the manufacturer datasheets.
What package type do both the ADA4075-2ARZ and ADA4004-1ARZ-RL use?
Both devices are offered in an 8-lead SOIC package (the "ARZ" suffix in the Analog Devices part numbering denotes an 8-lead SOIC). Designers should confirm the exact package drawing and land pattern in the respective datasheets before layout.
How do the supply voltage and power consumption characteristics compare?
Both parts are designed for low-power operation, but the ADA4075-2ARZ is a dual amplifier and the ADA4004-1ARZ-RL is a single amplifier, so total quiescent current per package differs. Refer to the supply current and supply voltage range specifications in each device's datasheet for verified values before comparing power budgets.
Which part is better suited for low-noise signal conditioning?
Both the ADA4075-2ARZ and ADA4004-1ARZ-RL are specified as low-noise operational amplifiers, but their voltage-noise density and current-noise specifications differ. The appropriate choice depends on the source impedance and bandwidth of the application; compare the noise specifications in the respective datasheets rather than assuming equivalence.
What does the "-RL" suffix on the ADA4004-1ARZ-RL indicate?
The "-RL" suffix in Analog Devices part numbering denotes tape-and-reel packaging for automated assembly. It does not change the electrical specifications of the device; the ADA4004-1ARZ-RL is the same single op amp die as the standard ADA4004-1ARZ, supplied in reel format.
Are both devices specified for precision DC applications?
Both the ADA4075-2ARZ and ADA4004-1ARZ-RL are precision operational amplifiers with specified offset voltage, offset voltage drift, and open-loop gain. However, because one is dual and one is single, and their datasheet limits differ, designers must verify the specific offset, drift, and gain specifications for the target grade in the manufacturer datasheet.