Part A
ADA4841-2YRMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5986 個数
- 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 ADA4896-2ARMZ-RL is a viable functional replacement candidate for the ADA4841-2YRMZ in many low-noise, high-speed signal-chain applications, as both are dual, unity-gain-stable, voltage-feedback op amps in the same 8-lead MSOP package with comparable supply-voltage ranges. However, the ADA4896-2 offers substantially higher bandwidth and slew rate with lower input voltage noise, while the ADA4841-2 provides lower input bias current and a wider specified operating-temperature range. Designers should validate closed-loop stability, input-bias-current error budgets, and thermal margins before substituting in precision or high-impedance front ends.
Package Type
High match
Supply Voltage Range
High match
Input Bias Current
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
ADA4896-2ARMZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 8316 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 | ADA4841-2YRMZ | ADA4896-2ARMZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count matches for direct substitution in dual-channel designs. |
| Gain Bandwidth Product (GBP) | 80 MHz | 230 MHz | Higher GBP allows the ADA4896-2 to handle wider-bandwidth signals, affecting achievable closed-loop bandwidth and settling. |
| -3 dB Bandwidth (G = +1) | 80 MHz | 230 MHz | Unity-gain bandwidth determines the maximum signal frequency the amplifier can pass without significant attenuation. |
| Slew Rate | 13 V/µs | 120 V/µs | Slew rate limits large-signal response; the much higher slew rate of the ADA4896-2 suits faster, larger transients. |
| Input Voltage Noise Density | 2.1 nV/√Hz | 1 nV/√Hz | Lower input noise improves signal-to-noise ratio in low-level signal amplification applications. |
| Supply Voltage Range | 2.7 V to 12 V | 3 V to 10 V | The usable supply range must cover the system rail voltages for the part to operate correctly. |
| Quiescent Current (per amplifier) | 1.1 mA | 3 mA | Quiescent current affects power budget; the ADA4841-2 draws less supply current per amplifier. |
| Input Offset Voltage (max) | 0.5 mV | 0.5 mV | Offset voltage impacts DC accuracy; matching values indicate comparable DC precision. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Identical package and pinout allow drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Matching temperature ranges ensure both parts meet the same environmental requirements. |
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 | ADA4841-2YRMZ | ADA4896-2ARMZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | General Purpose | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 13V/µs | 120V/µs |
| Gain Bandwidth Product | - | 90 MHz |
| -3 dB Bandwidth | 80 MHz | 230 MHz |
| Current - Input Bias | 3 µA | 4 µA |
| Voltage - Input Offset | 40 µV | 28 µV |
| Supply Current | 1.2mA (x2 Channels) | 3mA (x2 Channels) |
| Current - Output / Channel | 60 mA | 80 mA |
| Voltage - Supply Span(Min) | 2.7 V | 3 V |
| Voltage - Supply Span(Max) | 12 V | 10 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 ADA4841-2YRMZ and the ADA4896-2ARMZ-RL?
The ADA4841-2YRMZ is a dual, low-power, low-noise, rail-to-rail output amplifier with a 80 MHz gain bandwidth product and 13 V/µs slew rate, supplied in an 8-lead MSOP package. The ADA4896-2ARMZ-RL is a dual, low-power, low-noise, rail-to-rail output amplifier with a 90 MHz gain bandwidth product and 120 V/µs slew rate, supplied in an 8-lead MSOP package and provided on tape and reel. The ADA4896-2 offers significantly higher slew rate and bandwidth, while the ADA4841-2 is optimized for lower quiescent current per amplifier.
Are the ADA4841-2YRMZ and ADA4896-2ARMZ-RL pin-compatible?
Both devices are offered in an 8-lead MSOP (RM) package with the same standard dual op-amp pinout, so they are pin-compatible at the package level. However, pin compatibility does not guarantee electrical interchangeability; the surrounding circuit must be validated against each device's datasheet specifications.
Which device has the higher slew rate, and by how much?
The ADA4896-2ARMZ-RL has a slew rate of 120 V/µs, while the ADA4841-2YRMZ has a slew rate of 13 V/µs. The ADA4896-2 therefore provides roughly nine times the slew rate of the ADA4841-2, making it better suited to high-speed, large-signal applications.
How do the gain bandwidth products of these two amplifiers compare?
The ADA4841-2YRMZ has a gain bandwidth product of 80 MHz, and the ADA4896-2ARMZ-RL has a gain bandwidth product of 90 MHz. The ADA4896-2 offers a modestly higher bandwidth, which can be advantageous in higher-frequency signal chains.
How do the supply current and voltage noise specifications compare?
The ADA4841-2YRMZ draws approximately 1.1 mA per amplifier and specifies input voltage noise of about 2.1 nV/√Hz at 1 kHz. The ADA4896-2ARMZ-RL draws approximately 3 mA per amplifier and specifies input voltage noise of about 1 nV/√Hz at 1 kHz. The ADA4896-2 provides lower voltage noise at the cost of higher supply current.
What supply voltage ranges do these amplifiers support?
Both the ADA4841-2YRMZ and the ADA4896-2ARMZ-RL operate from a single supply of 3 V to 12 V or from dual supplies of ±1.5 V to ±6 V. Designs should confirm the exact limits and operating conditions in the respective manufacturer datasheets.
What does the "-RL" suffix on the ADA4896-2ARMZ-RL indicate?
The "-RL" suffix denotes tape-and-reel packaging for automated assembly. The ADA4896-2ARMZ-RL is supplied in an 8-lead MSOP package on reels, whereas the ADA4841-2YRMZ is specified without a reel suffix in its part number. Both are the same base amplifier die in the same package type.
Can the ADA4841-2YRMZ and ADA4896-2ARMZ-RL be used interchangeably in an existing design?
They should not be treated as drop-in replacements without validation. Although both are dual op-amps in an 8-lead MSOP package with the same pinout, they differ in slew rate, bandwidth, supply current, and voltage noise. Circuit performance, stability, and power budget must be re-evaluated against the target device's datasheet before substitution.