Part A
ADA4841-2YRMZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5986 PCS
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The ADA4897-2ARMZ-RL is a viable functional replacement candidate for the ADA4841-2YRMZ in many low-power, low-noise dual op-amp applications, provided the board layout accommodates the different package footprint and the design validates the higher supply current and wider bandwidth against system requirements.
Package Type
Validation required
Channel Count
High match
Supply Current
Validation required
Gain Bandwidth Product
Validation required
Parts at a glance
Part B
ADA4897-2ARMZ-RL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4605 PCS
- Package
- MSOP-10
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
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 | ADA4897-2ARMZ-RL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count matches for direct circuit substitution. |
| Gain Bandwidth Product | 80 MHz | 230 MHz | Higher GBW allows the ADA4897-2 to handle faster signals and wider closed-loop bandwidths than the ADA4841-2. |
| -3 dB Bandwidth (G=+1) | 90 MHz | 230 MHz | Larger small-signal bandwidth supports higher-frequency applications and faster settling. |
| Input Voltage Noise Density | 2.1 nV/√Hz | 1 nV/√Hz | Lower noise improves signal-to-noise ratio in precision and low-level signal amplification. |
| Slew Rate | 13 V/µs | 135 V/µs | Higher slew rate enables faster large-signal response and reduces distortion at high frequencies. |
| Supply Voltage Range | 2.7 V to 12 V | 3 V to 10 V | Different supply ranges affect compatibility with system rails and low-voltage operation. |
| Supply Current per Amplifier | 1.1 mA | 3 mA | Quiescent current impacts power budget, especially in portable or high-channel-count designs. |
| Input Offset Voltage (Max) | 0.5 mV | 0.5 mV | Low offset voltage is critical for DC precision and minimizing output error in sensor interfaces. |
| Package / Mounting | 8-Lead MSOP (Surface Mount) | 8-Lead MSOP (Surface Mount) | Identical package and footprint allow drop-in PCB replacement without layout changes. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Matching industrial temperature ranges ensure equivalent environmental robustness. |
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 | ADA4897-2ARMZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| 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 ADA4897-2ARMZ-RL?
The ADA4841-2YRMZ is a dual, low-power, low-noise, rail-to-rail output voltage feedback amplifier offered in an 8-lead MSOP package, while the ADA4897-2ARMZ-RL is a dual, low-power, low-noise, rail-to-rail output amplifier in an 8-lead MSOP package supplied in tape-and-reel form. Both are dual op amps with rail-to-rail outputs, but they differ in specified bandwidth, supply current, and packaging orientation for production.
Are the ADA4841-2YRMZ and ADA4897-2ARMZ-RL pin-compatible?
Both devices are offered in an 8-lead MSOP package, and their pinouts follow the standard dual op amp configuration (OUT A, -IN A, +IN A, V-, +IN B, -IN B, OUT B, V+). Designers should confirm pin assignments against the respective manufacturer datasheets before substituting, since pin compatibility alone does not guarantee electrical compatibility.
How do the supply current and bandwidth specifications compare?
The ADA4841-2 is specified with a typical supply current of approximately 1.1 mA per amplifier and a -3 dB bandwidth of about 80 MHz. The ADA4897-2 is specified with a typical supply current of approximately 3 mA per amplifier and a -3 dB bandwidth of about 230 MHz. These values should be verified against the latest manufacturer datasheets for the exact grade and conditions.
Which device is better suited for low-power portable designs?
The ADA4841-2YRMZ is generally preferred for low-power portable designs because its typical supply current per amplifier (about 1.1 mA) is lower than that of the ADA4897-2ARMZ-RL (about 3 mA per amplifier). The lower quiescent current helps extend battery life in power-sensitive applications.
Which device offers higher speed for wideband signal processing?
The ADA4897-2ARMZ-RL offers higher speed, with a -3 dB bandwidth of approximately 230 MHz versus approximately 80 MHz for the ADA4841-2YRMZ. For wideband signal processing, the ADA4897-2 provides greater gain-bandwidth headroom, at the cost of higher supply current.
What does the -RL suffix on the ADA4897-2ARMZ-RL indicate?
The -RL suffix indicates tape-and-reel packaging, which is intended for automated high-volume assembly. The ADA4841-2YRMZ is supplied in standard tube or tray packaging unless a reel suffix is specified. Both are the same die in the same 8-lead MSOP package; only the packaging format differs.
Can the ADA4897-2ARMZ-RL directly replace the ADA4841-2YRMZ in an existing design?
Direct replacement is not recommended without validation. Although both are dual op amps in 8-lead MSOP packages, they differ in supply current, bandwidth, and possibly other AC/DC specifications. The higher supply current of the ADA4897-2 may exceed the power budget, and the different bandwidth may affect stability and compensation. Verify all parameters against the target design requirements and manufacturer datasheets before substitution.