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
Compatible functional replacement candidate
The ADA4062-2BRZ-R7 is a viable functional replacement candidate for the ADA4075-2ARZ in low-power, low-voltage signal-conditioning applications, provided the tighter supply range and reduced bandwidth are acceptable for the target design. Both are dual op-amps in the same SOIC-8 package, but the ADA4062-2 trades bandwidth and supply headroom for significantly lower quiescent current, so validation of the application's AC and headroom requirements is recommended before substitution.
Package Type
High match
Channel Count
High match
Supply Voltage Range
Validation required
Gain Bandwidth Product
Validation required
Parts at a glance
Part B
ADA4062-2BRZ-R7
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 4465 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 | ADA4062-2BRZ-R7 | 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 | 250 µV | Lower offset voltage reduces DC error in precision signal chains; the ADA4075-2 offers tighter DC accuracy. |
| Input Bias Current (Typ) | 0.3 nA | 0.5 pA | Ultra-low bias current matters for high-impedance sensor and photodiode front-ends; the ADA4062-2 is superior here. |
| Gain Bandwidth Product | 6.5 MHz | 1.8 MHz | GBW determines achievable closed-loop bandwidth; the ADA4075-2 supports wider-bandwidth signal processing. |
| Slew Rate | 2.5 V/µs | 0.5 V/µs | Higher slew rate enables faster large-signal response and lower distortion at high frequencies. |
| Input Voltage Noise Density | 11 nV/√Hz | 22 nV/√Hz | Lower voltage noise improves SNR in low-level signal amplification; the ADA4075-2 is quieter. |
| Supply Voltage Range | ±4.5 V to ±18 V | ±4 V to ±15 V | Supply range affects compatibility with system rails; the ADA4075-2 tolerates higher supply voltages. |
| Quiescent Current per Amplifier (Typ) | 1.3 mA | 0.2 mA | Lower quiescent current is critical for battery-powered and low-power designs; the ADA4062-2 is far more efficient. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Both cover the industrial temperature range, so environmental compatibility is equivalent. |
| Package / Mounting | 8-Lead SOIC (Surface Mount) | 8-Lead SOIC (Surface Mount) | Identical package and footprint allow drop-in board replacement 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 | ADA4062-2BRZ-R7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | General Purpose | J-FET |
| Number of Circuits | 2 | 2 |
| Slew Rate | 12V/µs | 3.3V/µs |
| Gain Bandwidth Product | 6.5 MHz | 1.4 MHz |
| Current - Input Bias | 30 nA | 2 pA |
| Voltage - Input Offset | 200 µV | 500 µV |
| Supply Current | 1.8mA (x2 Channels) | 165µA (x2 Channels) |
| Current - Output / Channel | 40 mA | 20 mA |
| Voltage - Supply Span(Min) | 9 V | 8 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 primary differences between the ADA4075-2ARZ and the ADA4062-2BRZ-R7?
The ADA4075-2ARZ is a dual low-noise, low-power operational amplifier in an 8-lead SOIC package, while the ADA4062-2BRZ-R7 is a dual JFET-input operational amplifier in an 8-lead SOIC package supplied in 7-inch reel packaging. The ADA4075-2 is optimized for low voltage noise (typically 2.8 nV/√Hz at 1 kHz) and low input bias current, whereas the ADA4062-2 is a JFET-input device offering very high input impedance and low input bias current (typically 5 pA), making it suited to high-impedance sensor interfaces. The two parts differ in input stage topology, noise profile, and packaging format, so they are not drop-in equivalents.
Are the ADA4075-2ARZ and ADA4062-2BRZ-R7 pin-compatible?
Both devices are offered in an 8-lead SOIC package with the standard 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+). Because the pin functions and package footprint match, they are pin-compatible in the same SOIC-8 land pattern, but electrical differences must still be validated for the target circuit.
How do the input bias currents of the ADA4075-2ARZ and ADA4062-2BRZ-R7 compare?
The ADA4062-2BRZ-R7 uses a JFET input stage and specifies an input bias current of typically 5 pA, which is substantially lower than the ADA4075-2ARZ, whose bipolar input stage specifies input bias current in the nanoampere range (typically around 1 nA per the datasheet). For very high source-impedance applications, the ADA4062-2 is generally the better choice.
Which device has lower voltage noise, the ADA4075-2ARZ or the ADA4062-2BRZ-R7?
The ADA4075-2ARZ is specified with a low voltage noise density of typically 2.8 nV/√Hz at 1 kHz, making it the lower-noise option of the two. The ADA4062-2BRZ-R7, as a JFET-input amplifier, has a higher voltage noise density (typically in the range of tens of nV/√Hz). For low-noise signal conditioning, the ADA4075-2 is preferred.
What are the supply voltage ranges for the ADA4075-2ARZ and ADA4062-2BRZ-R7?
The ADA4075-2ARZ operates from a dual supply of ±4.5 V to ±15 V (9 V to 30 V total). The ADA4062-2BRZ-R7 operates from ±4.5 V to ±15 V as well, per its datasheet. Both are therefore suitable for ±5 V, ±12 V, and ±15 V analog rails, but the designer should confirm the exact specified limits in the respective manufacturer datasheets.
Can the ADA4062-2BRZ-R7 directly replace the ADA4075-2ARZ in an existing design?
Not without validation. Although both are dual op-amps in an 8-lead SOIC package with the same pinout, they differ in input stage (JFET vs. bipolar), input bias current, voltage noise, and offset characteristics. A direct substitution may change circuit behavior in high-impedance or low-noise nodes, so the replacement should be verified against the ADA4062-2 datasheet and the specific application requirements.
What is the significance of the "-R7" suffix on the ADA4062-2BRZ-R7?
The "-R7" suffix indicates that the ADA4062-2BRZ-R7 is supplied in 7-inch reel packaging, typically with 750 pieces per reel, intended for automated pick-and-place assembly. The ADA4075-2ARZ is supplied in standard tube or tray packaging depending on the ordering code. The suffix affects packaging and order quantity, not the electrical specifications of the device.
Which device is better suited for high-impedance sensor interfaces?
The ADA4062-2BRZ-R7 is generally better suited for high-impedance sensor interfaces because its JFET input stage provides very low input bias current (typically 5 pA) and high input impedance, minimizing loading and offset errors. The ADA4075-2ARZ, with its bipolar input stage and nanoampere-level bias current, is better suited to low-noise, low-power signal chains where source impedance is moderate.