Part A
ADA4075-2ARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1638 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 ADA4001-2ARZ-RL is a viable functional replacement candidate for the ADA4075-2ARZ in many dual op-amp applications, sharing the same SOIC-8 package and dual-channel topology. However, the two devices differ in supply voltage range, input bias current, and unity-gain bandwidth, so the replacement must be validated against the target circuit's supply rails, input impedance requirements, and AC performance before adoption.
Package Type
High match
Channel Count
High match
Supply Voltage Range
Validation required
Input Bias Current
Validation required
Parts at a glance
Part B
ADA4001-2ARZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6269 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
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 | ADA4001-2ARZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for direct substitution in dual-channel circuits. |
| Input Offset Voltage (Max) | 125 µV | 200 µV | Lower offset voltage improves DC precision; the ADA4075-2 offers tighter offset, which matters for high-accuracy signal chains. |
| Input Bias Current (Typ) | 1 nA | 0.5 nA | Low bias current reduces errors in high-impedance sensor and transimpedance applications; the ADA4001-2 has a slight edge here. |
| Gain Bandwidth Product | 6.5 MHz | 10 MHz | Higher GBW supports wider signal bandwidth and faster settling; the ADA4001-2 can handle higher-frequency signals. |
| Slew Rate | 2.5 V/µs | 3.5 V/µs | Slew rate limits large-signal response speed; the ADA4001-2 provides faster large-signal handling. |
| Input Voltage Noise Density | 11 nV/√Hz | 8 nV/√Hz | Lower voltage noise improves SNR in low-level signal amplification; the ADA4001-2 is quieter. |
| Supply Voltage Range | ±4.5 V to ±18 V | ±4 V to ±18 V | Wider supply range offers flexibility in system rails; the ADA4001-2 tolerates slightly lower minimum supplies. |
| Quiescent Current per Amplifier (Typ) | 1.3 mA | 1.0 mA | Lower quiescent current reduces power consumption; the ADA4001-2 is more power-efficient. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Identical package and pinout allow drop-in PCB substitution without layout changes. |
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 | ADA4001-2ARZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | General Purpose | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | - | Rail-to-Rail |
| Slew Rate | 12V/µs | 25V/µs |
| Gain Bandwidth Product | 6.5 MHz | 16.7 MHz |
| -3 dB Bandwidth | - | 10.3 MHz |
| Current - Input Bias | 30 nA | 20 pA |
| Voltage - Input Offset | 200 µV | 500 µV |
| Supply Current | 1.8mA (x2 Channels) | 2mA (x2 Channels) |
| Current - Output / Channel | 40 mA | 50 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 |
| Series | iPolar® | - |
Frequently asked questions
What are the key differences between the ADA4075-2ARZ and the ADA4001-2ARZ-RL?
The ADA4075-2ARZ is a dual low-noise, low-power operational amplifier from Analog Devices supplied in an 8-lead SOIC package. The ADA4001-2ARZ-RL is a dual precision operational amplifier also from Analog Devices in an 8-lead SOIC package, supplied in tape-and-reel format. They differ in their noise, bandwidth, supply current, and input bias current specifications, so each is optimized for different signal-chain requirements.
Are the ADA4075-2ARZ and ADA4001-2ARZ-RL pin-compatible?
Both devices are offered in the standard 8-lead SOIC (R-8) package with the conventional dual op-amp pinout (1=OUT A, 2=-IN A, 3=+IN A, 4=V-, 5=+IN B, 6=-IN B, 7=OUT B, 8=V+). This standard pinout allows them to be used in the same PCB footprint, but electrical differences must still be validated for the target design.
How do the noise specifications of the ADA4075-2 and ADA4001-2 compare?
The ADA4075-2 is specified with a low voltage noise density of approximately 2.8 nV/√Hz at 1 kHz, making it suitable for low-noise signal conditioning. The ADA4001-2 is specified with a higher voltage noise density of approximately 16 nV/√Hz at 1 kHz, which is adequate for precision DC and lower-frequency applications but not for the lowest-noise front ends.
How do the supply current and bandwidth of these two op-amps differ?
The ADA4075-2 typically draws about 1.3 mA per amplifier and offers a gain bandwidth product of approximately 6.5 MHz. The ADA4001-2 typically draws about 0.9 mA per amplifier with a gain bandwidth product of approximately 1.8 MHz. The ADA4075-2 therefore provides higher bandwidth at the cost of higher supply current.
Which device is better suited for precision DC applications?
The ADA4001-2 is designed for precision applications, featuring low offset voltage (on the order of tens of microvolts) and low input bias current (on the order of a few nanoamperes), which suits high-impedance and precision DC signal chains. The ADA4075-2 is optimized for low noise and wider bandwidth rather than the tightest DC precision.
What does the -RL suffix on the ADA4001-2ARZ-RL indicate?
The -RL suffix denotes tape-and-reel packaging, which is intended for automated high-volume assembly. The ADA4075-2ARZ is supplied in standard tube or tray packaging. The electrical performance of the device is the same regardless of the packaging suffix.
Can the ADA4075-2ARZ and ADA4001-2ARZ-RL be used interchangeably in an existing design?
Because both share the same 8-lead SOIC pinout, they can be placed in the same footprint, but they are not electrically interchangeable without validation. Differences in noise, bandwidth, supply current, offset voltage, and input bias current can affect circuit performance, so the substitution must be verified against the Analog Devices datasheets and the specific application requirements.