Part A
AD8476ARMZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5337 ПКС
- Package
- MSOP-8
- Series
- Линейные - Усилетели - Приборы, ОП Усилетели, Буферные Усилетели
Replacement verdict
Compatible functional replacement candidate
The AD8476ARMZ and AD8476BRMZ-RL are functionally interchangeable low-power fully differential amplifiers in the same 8-lead MSOP package with identical pinout and supply requirements; the B-grade variant offers tighter gain error and offset voltage specifications, making it a suitable drop-in candidate where enhanced DC precision is required, while the A-grade remains adequate for less demanding signal-chain applications.
Package Type
High match
Pin Configuration
High match
Supply Voltage Range
High match
Gain Error and Offset Voltage
Validation required
Parts at a glance
Part B
AD8476BRMZ-RL
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6183 ПКС
- Package
- TSSOP-8
- Series
- Линейные - Усилетели - Приборы, ОП Усилетели, Буферные Усилетели
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8476ARMZ | AD8476BRMZ-RL | Why it matters |
|---|---|---|---|
| Amplifier Type | Differential Amplifier | Differential Amplifier | Confirms both parts perform the same core signal-conditioning function, enabling direct substitution. |
| Number of Circuits | 1 | 1 | Channel count must match for the parts to be interchangeable in a given circuit. |
| Output Type | Differential | Differential | Differential output is essential for driving ADCs and maintaining signal integrity in the target application. |
| Supply Voltage Range | ±2.5 V to ±18 V (dual) | ±2.5 V to ±18 V (dual) | Matching supply ranges ensure the part operates correctly in the same power environment. |
| Package / Case | 8-MSOP | 8-MSOP | Identical package and footprint allow drop-in replacement without PCB redesign. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style ensures compatibility with the existing assembly process. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Equivalent temperature ratings guarantee reliable operation across the same environmental conditions. |
| Gain Bandwidth Product | 5 MHz | 5 MHz | Bandwidth determines the maximum signal frequency the amplifier can handle, affecting dynamic performance. |
| Slew Rate | 10 V/µs | 10 V/µs | Slew rate limits large-signal response speed; matching values preserve transient behavior. |
| Input Offset Voltage | 200 µV (max) | 200 µV (max) | Offset voltage affects DC accuracy; identical limits ensure equivalent precision in measurement applications. |
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 | AD8476ARMZ | AD8476BRMZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | Differential | Differential |
| Number of Circuits | 1 | 1 |
| Output Type | Differential, Rail-to-Rail | Differential, Rail-to-Rail |
| Slew Rate | 10V/µs | 10V/µs |
| -3 dB Bandwidth | 5 MHz | 5 MHz |
| Supply Current | 330µA | 330µA |
| Current - Output / Channel | 35 mA | 35 mA |
| Voltage - Supply Span(Min) | 3 V | 3 V |
| Voltage - Supply Span(Max) | 18 V | 18 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 AD8476ARMZ and AD8476BRMZ-RL?
Both devices are low-power, fully differential amplifier/driver products from Analog Devices in an 8-lead MSOP (RM) package. The AD8476ARMZ is the standard A-grade version, while the AD8476BRMZ-RL is the B-grade version supplied in tape-and-reel packaging (RL). The primary differences are the grade/performance binning and the packaging format; the B-grade is specified with tighter performance limits than the A-grade per the manufacturer datasheet.
Are the AD8476ARMZ and AD8476BRMZ-RL pin-compatible and footprint-compatible?
Yes. Both are offered in the same 8-lead MSOP package (RM suffix) with identical pin functions, so they share the same PCB land pattern and are pin-to-pin compatible. The difference is the performance grade and delivery format, not the package or pinout.
What does the "RL" suffix on the AD8476BRMZ-RL indicate?
The "RL" suffix denotes tape-and-reel packaging, which is intended for automated high-volume assembly. The AD8476ARMZ is typically supplied in standard tube/rail packaging. The electrical grade is indicated by the A or B prefix, not by the RL suffix.
Can the AD8476BRMZ-RL be used as a drop-in replacement for the AD8476ARMZ?
Because both are the same base part in the same 8-lead MSOP package with the same pinout, the B-grade tape-and-reel version can generally serve as a drop-in replacement for the A-grade version, provided the design's performance requirements are met by the B-grade specifications. Always verify the grade-specific limits in the Analog Devices datasheet before substituting.
Which grade should be selected for a new design, A or B?
Selection depends on the required performance margins. The B-grade (AD8476BRMZ-RL) is specified with tighter limits than the A-grade (AD8476ARMZ), so choose the B-grade when tighter guaranteed performance is needed, and the A-grade when the standard limits are sufficient. Confirm the exact grade-specific specifications in the official Analog Devices datasheet for the target design.
Are both parts RoHS-compliant and lead-free?
Both the AD8476ARMZ and AD8476BRMZ-RL carry the "Z" suffix in their part numbers, which in Analog Devices nomenclature denotes RoHS-compliant, lead-free (Pb-free) packaging. Confirm the current compliance status on the manufacturer datasheet or product page before final qualification.
Do both parts share the same operating temperature range and supply requirements?
Yes. As the same base AD8476 device in the same package, both the A-grade and B-grade versions share the same specified operating temperature range and supply voltage requirements per the Analog Devices datasheet. The grade designation affects performance limits, not the fundamental supply or temperature ratings.