Part A
ADA4610-2ARZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1759 PCS
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The ADA4610-2BRZ and ADA4610-2ARZ are functionally interchangeable dual operational amplifiers from the same ADA4610-2 family, sharing identical pinout, supply range, and electrical performance. The only distinction is the grade classification, where the BRZ variant offers tighter guaranteed specifications over the ARZ grade. Both parts are suitable for the same socket and circuit design, with the BRZ providing enhanced parametric assurance for precision applications.
Amplifier Configuration
High match
Package and Pinout
High match
Supply Voltage Range
High match
Grade and Specification Tolerance
Validation required
Parts at a glance
Part B
ADA4610-2BRZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3330 PCS
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADA4610-2BRZ | ADA4610-2ARZ | Why it matters |
|---|---|---|---|
| Input Offset Voltage (Max) | 0.3 mV | 1 mV | Lower offset voltage improves DC accuracy; the B-grade offers tighter offset than the A-grade, affecting precision in high-gain or DC-coupled circuits. |
| Input Offset Voltage Drift (Max) | 2 µV/°C | 5 µV/°C | Lower drift maintains accuracy over temperature; the B-grade is more stable across the operating temperature range. |
| Input Bias Current (Max) | 5 pA | 25 pA | Low bias current is critical for high-impedance sensor interfaces and precision integrators; the B-grade has a tighter guaranteed limit. |
| Input Offset Current (Max) | 5 pA | 25 pA | Offset current affects error in high-impedance nodes; the B-grade guarantees a lower limit for better precision. |
| Voltage Noise Density (Typ, 1 kHz) | 7.3 nV/√Hz | 7.3 nV/√Hz | Noise density affects signal-to-noise ratio in low-level signal amplification; both grades share the same typical noise performance. |
| Gain Bandwidth Product (Typ) | 16.9 MHz | 16.9 MHz | GBW determines the achievable closed-loop bandwidth; both grades provide identical AC performance. |
| Supply Voltage Range | ±4.5 V to ±15 V | ±4.5 V to ±15 V | Defines the operating supply window; both grades support the same dual-supply range for design flexibility. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Both grades are specified over the industrial/extended temperature range, suitable for harsh environments. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Identical package ensures drop-in footprint compatibility between the two grades. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADA4610-2ARZ | ADA4610-2BRZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 61V/µs | 61V/µs |
| Gain Bandwidth Product | 16.3 MHz | 16.3 MHz |
| -3 dB Bandwidth | 9.5 MHz | 9.5 MHz |
| Current - Input Bias | 5 pA | 5 pA |
| Voltage - Input Offset | 400 µV | 200 µV |
| Supply Current | 1.6mA (x2 Channels) | 1.6mA (x2 Channels) |
| Current - Output / Channel | 79 mA | 79 mA |
| Voltage - Supply Span(Min) | 10 V | 10 V |
| Voltage - Supply Span(Max) | 30 V | 30 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between the ADA4610-2BRZ and ADA4610-2ARZ?
Both are dual low-noise, low-input-bias-current JFET operational amplifiers from Analog Devices in an 8-lead SOIC package. The primary difference is the grade: the ADA4610-2BRZ is the higher-grade version with tighter specified limits, while the ADA4610-2ARZ is the standard grade. The B grade offers better guaranteed offset voltage and offset voltage drift than the A grade.
What are the specified input offset voltage limits for each grade?
Per the Analog Devices datasheet, the ADA4610-2BRZ (B grade) specifies a maximum input offset voltage of 0.5 mV, while the ADA4610-2ARZ (A grade) specifies a maximum input offset voltage of 1.0 mV. Both are tested at the same supply conditions.
How do the offset voltage drift specifications compare?
The B grade (ADA4610-2BRZ) specifies a maximum input offset voltage drift of 2 µV/°C, whereas the A grade (ADA4610-2ARZ) specifies a maximum drift of 5 µV/°C. This makes the B grade preferable for applications requiring tighter DC stability over temperature.
Are the ADA4610-2BRZ and ADA4610-2ARZ pin-compatible and package-compatible?
Yes. Both devices are offered in the same 8-lead SOIC package (RZ suffix) with identical pinout and PCB land pattern, so they are drop-in compatible from a mechanical and pin-function standpoint. Electrical grade differences must still be evaluated for the target design.
Do both grades share the same AC performance specifications?
Yes. Both the ADA4610-2BRZ and ADA4610-2ARZ share the same typical AC specifications, including a gain bandwidth product of 16 MHz, a slew rate of 25 V/µs, and a low input voltage noise density of 7.3 nV/√Hz at 1 kHz, as listed in the Analog Devices datasheet.
Do both grades have the same input bias current and supply range?
Yes. Both grades specify a typical input bias current of 5 pA at 25°C and operate over a supply voltage range of ±4.5 V to ±15 V (or 9 V to 30 V single supply), per the Analog Devices datasheet. The JFET input stage provides the low bias current on both grades.
Which grade should be selected for a precision DC application?
For precision DC applications, the ADA4610-2BRZ is the better choice because its tighter maximum offset voltage (0.5 mV vs 1.0 mV) and lower offset drift (2 µV/°C vs 5 µV/°C) reduce DC error over temperature. The ADA4610-2ARZ remains suitable where the wider A-grade limits are acceptable.
Can the ADA4610-2ARZ be used as a substitute for the ADA4610-2BRZ?
Substitution is possible only if the design tolerates the wider A-grade limits, specifically the 1.0 mV maximum offset voltage and 5 µV/°C maximum drift versus the B grade's 0.5 mV and 2 µV/°C. The package, pinout, and typical AC performance are the same, but the guaranteed DC limits differ and must be validated against the application requirements.