Part A
AD8276ARMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1258 個数
- Package
- MSOP-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 AD8276ARMZ and AD8276BRMZ-RL are functionally interchangeable, sharing identical pinout, package, supply range, and gain configuration. The only meaningful distinction is the B-grade's tighter gain error and offset voltage specifications, which may matter in precision signal-chain designs but do not affect drop-in form, fit, or function.
Package and Pinout
High match
Function and Topology
High match
Supply Voltage Range
High match
Gain and Offset Accuracy
Validation required
Parts at a glance
Part B
AD8276BRMZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 9566 個数
- Package
- TSSOP-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 | AD8276ARMZ | AD8276BRMZ-RL | Why it matters |
|---|---|---|---|
| Manufacturer Part Number | AD8276ARMZ | AD8276BRMZ-RL | Identifies the exact orderable variant; the A and B suffixes denote different grade/performance tiers of the same base amplifier. |
| Grade / Performance Tier | A grade | B grade | The B grade typically offers tighter specifications (e.g., offset, gain error) than the A grade, affecting precision in measurement circuits. |
| Input Offset Voltage (max) | Higher (A grade) | Lower (B grade) | Lower offset voltage improves DC accuracy; the B grade is preferable where precision matters. |
| Gain Error (max) | Higher (A grade) | Lower (B grade) | Tighter gain error yields more accurate signal scaling in difference-amplifier applications. |
| Packaging / Ordering Format | Tube / individual | Tape and reel | The -RL suffix indicates tape-and-reel packaging, which matters for automated high-volume assembly lines. |
| Package / Mounting | 8-lead MSOP, surface mount | 8-lead MSOP, surface mount | Identical footprint and mounting allow drop-in board compatibility between the two variants. |
| Number of Amplifiers | 1 (single difference amplifier) | 1 (single difference amplifier) | Same channel count ensures functional equivalence in single-channel signal chains. |
| Supply Voltage Range | 2.7 V to 36 V (single/dual supply) | 2.7 V to 36 V (single/dual supply) | Matching supply range confirms both parts work in the same power environment. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings ensure equivalent environmental robustness. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8276ARMZ | AD8276BRMZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | Differential | Differential |
| Number of Circuits | 1 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 1.1V/µs | 1.1V/µs |
| Gain Bandwidth Product | 550 kHz | 550 kHz |
| Voltage - Input Offset | 100 µV | 100 µV |
| Supply Current | 200µA | 200µA |
| Current - Output / Channel | 15 mA | 15 mA |
| Voltage - Supply Span(Min) | 2 V | 2 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8276ARMZ and the AD8276BRMZ-RL?
Both devices are unity-gain difference amplifiers from the AD8276 family in an 8-lead MSOP (RM) package. The primary difference is the grade: the AD8276ARMZ is the A-grade version, while the AD8276BRMZ-RL is the B-grade version supplied in tape-and-reel packaging. The B-grade offers tighter guaranteed specifications, notably lower gain error and lower offset voltage, than the A-grade. Designers should confirm the exact grade-dependent limits in the respective datasheets before selecting between them.
Are the AD8276ARMZ and AD8276BRMZ-RL pin-compatible and package-compatible?
Yes. Both parts 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 footprint-compatible. The "-RL" suffix on the AD8276BRMZ-RL denotes tape-and-reel packaging rather than a different package or pinout.
Can the AD8276ARMZ and AD8276BRMZ-RL be used interchangeably in a design?
They are functionally interchangeable as unity-gain difference amplifiers in the same package, but they are not specification-identical. The B-grade (AD8276BRMZ-RL) guarantees tighter gain error and offset voltage than the A-grade (AD8276ARMZ). Substitution is acceptable only if the application's error budget is satisfied by the A-grade limits; otherwise the B-grade should be retained. Always verify against the manufacturer datasheet for the specific grade.
What is the function of the AD8276 difference amplifier?
The AD8276 is a low-power, unity-gain difference amplifier designed to amplify the difference between two input signals while rejecting common-mode voltage. It is typically used for differential signal conditioning, current sensing, and level shifting in industrial and instrumentation applications. Both the A- and B-grade versions share this core function.
Does the "-RL" suffix on the AD8276BRMZ-RL indicate a different electrical grade?
No. The "-RL" suffix indicates tape-and-reel packaging for automated assembly. The electrical grade is denoted by the "B" in AD8276BRMZ, distinguishing it from the "A" grade of the AD8276ARMZ. Both are the same base AD8276 device family in the same MSOP package.
Which grade should be selected for precision applications?
For precision applications requiring tighter gain error and lower offset voltage, the B-grade AD8276BRMZ-RL is the appropriate choice, as it carries tighter guaranteed limits than the A-grade AD8276ARMZ. The A-grade is suitable where the wider A-grade error limits are acceptable. Final selection should be based on the guaranteed specifications published in the manufacturer datasheet for each grade.
Do both parts share the same supply voltage and operating temperature range?
Both the AD8276ARMZ and AD8276BRMZ-RL belong to the same AD8276 family and are specified for the same nominal supply and industrial temperature operating conditions as defined in the manufacturer datasheet. Because grade-dependent limits differ, designers should consult the datasheet tables for the exact supply range and temperature specifications applicable to each grade rather than assuming identical guaranteed limits.