Part A
ADA4077-2ARMZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5568 PCS
- Package
- MSOP-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The ADA4096-2ARMZ and ADA4077-2ARMZ share the same dual op-amp configuration and 8-lead MSOP package, making them pin-compatible candidates for substitution. However, the ADA4096-2ARMZ is a micropower, over-the-top precision amplifier with rail-to-rail input capability and lower supply current, while the ADA4077-2ARMZ is a low-noise, low-offset-voltage precision amplifier with higher bandwidth and slew rate. Designers must validate supply voltage range, input common-mode behavior, and AC performance requirements before substituting one for the other in a given circuit.
Package Type
High match
Channel Count
High match
Supply Current
Validation required
Input Common-Mode Range
Not compatible
Parts at a glance
Part B
ADA4096-2ARMZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5964 PCS
- Package
- MSOP-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADA4096-2ARMZ | ADA4077-2ARMZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for direct substitution in dual-amplifier circuits. |
| Input Offset Voltage (Max) | 300 µV | 25 µV | Lower offset voltage improves DC precision; the ADA4077-2 offers significantly better offset performance for precision signal chains. |
| Input Bias Current (Typ) | 0.3 nA | 0.5 nA | Low bias current minimizes errors in high-impedance sensor and feedback networks; both are low but differ slightly. |
| Gain Bandwidth Product | 1.2 MHz | 3.6 MHz | GBW determines the achievable closed-loop bandwidth; the ADA4077-2 supports wider-bandwidth signals than the ADA4096-2. |
| Slew Rate | 0.4 V/µs | 1.2 V/µs | Slew rate limits large-signal response speed; the ADA4077-2 handles faster transients and higher-frequency large signals. |
| Supply Voltage Range | 3 V to 30 V (±1.5 V to ±15 V) | 4 V to 30 V (±2 V to ±15 V) | The ADA4096-2 operates down to 3 V total supply, enabling lower-voltage single-supply designs where the ADA4077-2 requires at least 4 V. |
| Input Voltage Range (Over-The-Top) | Beyond-the-rails (over-the-top) input capability | Rail-to-rail input (standard) | The ADA4096-2 tolerates input voltages above the positive rail, which is critical for high-side sensing and fault-tolerant front ends; the ADA4077-2 does not offer this. |
| Supply Current per Amplifier (Typ) | 60 µA | 400 µA | Quiescent current drives power budget; the ADA4096-2 is far more power-efficient for battery-powered and low-power applications. |
| Input Noise Voltage Density (1 kHz, Typ) | 27 nV/√Hz | 7 nV/√Hz | Lower voltage noise improves SNR in low-level signal amplification; the ADA4077-2 is substantially quieter for precision low-noise designs. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Both support industrial/extended temperature ranges, so thermal compatibility is maintained for substitution. |
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 | ADA4077-2ARMZ | ADA4096-2ARMZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 |
| Slew Rate | 1.2V/µs | 0.4V/µs |
| Gain Bandwidth Product | 3.6 MHz | 786 kHz |
| -3 dB Bandwidth | 5.5 MHz | 1.52 MHz |
| Current - Input Bias | 400 pA | 3 nA |
| Voltage - Input Offset | 50 µV | 35 µV |
| Supply Current | 400µA (x2 Channels) | 60µA (x2 Channels) |
| Current - Output / Channel | 10 mA | 10 mA |
| Voltage - Supply Span(Min) | 5 V | 3 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 |
| Output Type | - | Rail-to-Rail |
Frequently asked questions
What are the key differences between the ADA4096-2ARMZ and ADA4077-2ARMZ?
The ADA4096-2ARMZ is a dual micropower, overvoltage-protected rail-to-rail input/output operational amplifier featuring input overvoltage protection up to 32 V beyond the supply rails, a gain bandwidth product of 786 kHz, and a typical supply current of 60 µA per amplifier. The ADA4077-2ARMZ is a dual low noise, low offset voltage precision operational amplifier with a 3.9 MHz gain bandwidth product, 1.1 nV/√Hz voltage noise density, and a typical supply current of 400 µA per amplifier. The ADA4096-2ARMZ targets robust, low-power signal conditioning, while the ADA4077-2ARMZ targets high-precision, low-noise instrumentation applications.
Are the ADA4096-2ARMZ and ADA4077-2ARMZ pin-compatible?
Yes. Both devices are offered in the same 8-lead MSOP (RM) package with identical pin assignments: pin 1 and pin 2 are the outputs of amplifiers A and B, pins 3 and 5 are the non-inverting inputs, pins 4 and 8 are the negative and positive supplies, and pins 6 and 7 are the inverting inputs. This allows the two parts to share the same PCB footprint, though electrical differences must still be validated for the target design.
How do the supply voltage ranges of the ADA4096-2ARMZ and ADA4077-2ARMZ compare?
The ADA4096-2ARMZ operates from a single supply of 3 V to 30 V (or dual supplies of ±1.5 V to ±15 V). The ADA4077-2ARMZ operates from a single supply of 4 V to 30 V (or dual supplies of ±2 V to ±15 V). The ADA4096-2ARMZ therefore supports lower minimum supply voltages, which can be advantageous in 3 V or low-voltage battery-powered systems.
Which device is better suited for low-power battery-operated applications?
The ADA4096-2ARMZ is better suited for low-power applications. Its typical supply current is 60 µA per amplifier, compared with 400 µA per amplifier for the ADA4077-2ARMZ. The lower quiescent current of the ADA4096-2ARMZ extends battery life in portable and micropower signal chains.
Which device offers lower noise for precision signal conditioning?
The ADA4077-2ARMZ offers significantly lower voltage noise, with a typical voltage noise density of 1.1 nV/√Hz at 1 kHz, compared with the ADA4096-2ARMZ, which has a typical voltage noise density of 27 nV/√Hz at 1 kHz. For low-level sensor or precision instrumentation front ends, the ADA4077-2ARMZ is the preferred choice.
What overvoltage protection does the ADA4096-2ARMZ provide?
The ADA4096-2ARMZ features input overvoltage protection that allows the inputs to be driven up to 32 V beyond the supply rails without damage, and it remains phase-reversal free under these conditions. This robustness makes it suitable for industrial and harsh-environment signal interfaces where fault conditions or out-of-range inputs can occur. The ADA4077-2ARMZ does not specify comparable input overvoltage protection beyond the supply rails.
How do the offset voltage specifications of the two amplifiers compare?
The ADA4077-2ARMZ specifies a maximum input offset voltage of 25 µV (typical 15 µV) at 25°C, making it a precision-grade amplifier. The ADA4096-2ARMZ specifies a maximum input offset voltage of 300 µV (typical 35 µV) at 25°C. For DC precision applications, the ADA4077-2ARMZ provides tighter offset voltage limits.
Can the ADA4096-2ARMZ and ADA4077-2ARMZ be used interchangeably in an existing design?
They should not be treated as drop-in replacements without validation. Although they share the same 8-lead MSOP package and pinout, they differ in supply current, gain bandwidth product, noise, offset voltage, and input overvoltage protection. Circuit performance, stability, power budget, and input protection requirements must be re-evaluated against the respective datasheets before substitution.