Part A
ADA4610-2ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1759 Stückzahl
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The ADA4610-2BRZ-RL is a functionally compatible replacement candidate for the ADA4610-2ARZ, as both parts share the same dual low-noise JFET-input op-amp core, identical pinout, and the same SOIC-8 package. The only meaningful distinction is the tighter grade specification of the BRZ variant, which offers improved offset voltage and drift performance. Designers should confirm that the tighter grade is acceptable for their application and verify supply and thermal margins before substituting.
Amplifier Core and Channel Count
High match
Package and Pinout
High match
Supply Voltage Range
High match
Offset Voltage Grade
Validation required
Parts at a glance
Part B
ADA4610-2BRZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7736 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADA4610-2ARZ | ADA4610-2BRZ-RL | Why it matters |
|---|---|---|---|
| Grade / Temperature Range | Industrial (-40°C to +125°C) | Industrial (-40°C to +125°C) | Both are industrial grade; the B-grade differs in specified performance limits rather than temperature range. |
| Input Offset Voltage (max) | 0.5 mV | 0.25 mV | Lower offset voltage improves DC accuracy in precision signal chains; the B-grade is tighter. |
| Input Offset Voltage Drift (max) | 5 µV/°C | 2 µV/°C | Lower drift maintains accuracy over temperature; the B-grade offers better thermal stability. |
| Input Bias Current (max) | 5 pA | 5 pA | Very low bias current suits high-impedance sensors; both grades share the same JFET input characteristic. |
| Gain Bandwidth Product | 16 MHz | 16 MHz | Determines closed-loop bandwidth and speed; identical for both grades. |
| Slew Rate | 25 V/µs | 25 V/µs | Affects large-signal response and settling; identical for both grades. |
| Supply Voltage Range | ±4.5 V to ±15 V | ±4.5 V to ±15 V | Defines compatible power rails; both support the same dual-supply range. |
| Input Voltage Noise Density | 7.3 nV/√Hz | 7.3 nV/√Hz | Sets the noise floor for low-level signals; identical for both grades. |
| Package / Pinout | 8-Lead SOIC | 8-Lead SOIC | Same footprint and pinout allow drop-in substitution on an existing PCB. |
| Packaging / Ordering | Tube | Tape & Reel | Affects assembly line handling; the -RL suffix denotes reel packaging for automated placement. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADA4610-2ARZ | ADA4610-2BRZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| 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 are the key differences between the ADA4610-2ARZ and ADA4610-2BRZ-RL?
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 and packaging: the ADA4610-2ARZ is a tube/rail version in the standard A grade, while the ADA4610-2BRZ-RL is the B grade supplied in tape-and-reel format. The B grade offers tighter guaranteed specifications, notably lower offset voltage and offset voltage drift, compared to the A grade.
Are the ADA4610-2ARZ and ADA4610-2BRZ-RL pin-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package with identical pinout: pin 1 = OUT A, pin 2 = -IN A, pin 3 = +IN A, pin 4 = V-, pin 5 = +IN B, pin 6 = -IN B, pin 7 = OUT B, and pin 8 = V+. They are drop-in compatible in terms of footprint and pin functions.
How do the offset voltage specifications differ between the A and B grades?
The ADA4610-2BRZ (B grade) guarantees a lower maximum input offset voltage than the ADA4610-2ARZ (A grade). Per the Analog Devices datasheet, the B grade specifies a tighter VOS maximum, making it preferable for precision DC applications where offset error must be minimized. Designers should consult the latest datasheet for the exact grade-specific limits.
What is the difference in offset voltage drift between the two grades?
The B grade (ADA4610-2BRZ-RL) specifies a lower maximum input offset voltage drift (TCVOS) than the A grade (ADA4610-2ARZ). This makes the B grade better suited for applications requiring stable performance over temperature, such as precision instrumentation and sensor signal conditioning.
Do both parts share the same supply voltage and quiescent current ratings?
Yes. Both the ADA4610-2ARZ and ADA4610-2BRZ-RL operate from a dual supply of ±4.5 V to ±15 V (or single supply 9 V to 30 V) and draw a typical supply current of approximately 1.5 mA per amplifier. The grade difference does not change the supply range or quiescent current.
What packaging format does each part use?
The ADA4610-2ARZ is supplied in standard tube/rail packaging, while the ADA4610-2BRZ-RL is supplied in tape-and-reel (the "RL" suffix denotes reel packaging). Both use the same 8-lead SOIC body, so the choice is driven by assembly line requirements rather than electrical or mechanical fit.
Can the ADA4610-2ARZ be substituted with the ADA4610-2BRZ-RL in an existing design?
Yes, in most cases. Because both share the same package, pinout, supply range, and core amplifier topology, the B grade can replace the A grade. The B grade provides equal or tighter guaranteed specifications, so substitution is generally upward-compatible. However, the designer should verify that the tighter grade specifications and the tape-and-reel packaging format meet the assembly and test requirements of the specific application.
Which part is better for precision low-noise signal conditioning?
The ADA4610-2BRZ-RL is the better choice for precision applications because its B grade guarantees lower maximum offset voltage and lower offset voltage drift than the A grade. Both parts share the same low input bias current, low noise, and high gain characteristics of the ADA4610-2 family, but the B grade's tighter DC specifications reduce systematic error in precision signal chains.