Part A
ADA4004-2ARMZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3179 PCS
- Package
- MSOP-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The ADA4096-2ARMZ and ADA4004-2ARMZ share the same dual op-amp channel count and SOIC-8 package footprint, making them mechanically interchangeable on an existing PCB. However, the ADA4096-2ARMZ is a micropower, rail-to-rail input/output amplifier with input overvoltage protection, while the ADA4004-2ARMZ is a precision, low-noise amplifier with substantially higher quiescent current and tighter offset specifications. Circuit-level validation of supply current, input bias current, noise, and bandwidth is required before substituting one for the other in a given design.
Channel Count
High match
Package Type
High match
Supply Current
Validation required
Input Offset Voltage
Validation required
Parts at a glance
Part B
ADA4096-2ARMZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5964 PCS
- Package
- MSOP-8
- 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 | ADA4096-2ARMZ | ADA4004-2ARMZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual op-amps, so channel count is compatible for drop-in use in dual configurations. |
| Input Offset Voltage (Max) | 300 µV | 125 µV | Lower offset improves DC precision; the ADA4004-2 offers tighter offset for high-accuracy signal chains. |
| Input Bias Current (Typ) | 0.3 nA | 30 nA | Lower bias current reduces errors in high-impedance sensor and feedback networks; the ADA4096-2 is far superior here. |
| Gain Bandwidth Product | 1.2 MHz | 12 MHz | GBW determines achievable closed-loop bandwidth; the ADA4004-2 supports much wider signal bandwidth. |
| Slew Rate | 0.4 V/µs | 2.7 V/µs | Higher slew rate enables faster large-signal response; the ADA4004-2 handles faster transients. |
| Supply Voltage Range | 3 V to 30 V (±1.5 V to ±15 V) | ±5 V to ±15 V | The ADA4096-2 operates at lower single-supply voltages, enabling 3 V/5 V systems where the ADA4004-2 cannot be used. |
| Input Voltage Range (Over-The-Top) | Beyond-the-rails (over-the-top capability) | Rail-to-rail input | Over-the-top input allows sensing above the positive supply, a unique capability not offered by the ADA4004-2. |
| Supply Current per Amplifier (Typ) | 60 µA | 1.7 mA | The ADA4096-2 is a micropower part suited to battery-powered designs; the ADA4004-2 draws far more current. |
| Input Noise Voltage Density (Typ) | 27 nV/√Hz | 6 nV/√Hz | Lower noise density benefits low-level signal amplification; the ADA4004-2 is significantly quieter. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Both cover the industrial/extended temperature range, so thermal compatibility is equivalent. |
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 | ADA4004-2ARMZ | ADA4096-2ARMZ |
|---|---|---|
| Series | iPolar® | - |
| Part Status | Active | Active |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 |
| Slew Rate | 2.7V/µs | 0.4V/µs |
| Gain Bandwidth Product | 12 MHz | 786 kHz |
| Current - Input Bias | 40 nA | 3 nA |
| Voltage - Input Offset | 40 µV | 35 µV |
| Current - Output / Channel | 10 mA | 10 mA |
| Voltage - Supply Span(Min) | 10 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 |
| -3 dB Bandwidth | - | 1.52 MHz |
| Supply Current | - | 60µA (x2 Channels) |
Frequently asked questions
What are the key differences between the ADA4096-2ARMZ and ADA4004-2ARMZ operational amplifiers?
The ADA4096-2ARMZ is a dual micropower, overvoltage-protected rail-to-rail input/output amplifier with a gain bandwidth product of 1 MHz and a typical supply current of 60 µA per amplifier. The ADA4004-2ARMZ is a dual precision, low-noise, low-offset-voltage amplifier with a 12 MHz gain bandwidth product and a typical supply current of 1.7 mA per amplifier. The ADA4096-2 is optimized for low-power, robust input protection applications, while the ADA4004-2 is optimized for precision signal conditioning requiring low noise and low offset.
Are the ADA4096-2ARMZ and ADA4004-2ARMZ pin-compatible in the same package?
Both devices are offered in an 8-lead MSOP (ARMZ) package with the same standard dual op-amp pinout: pin 1 and pin 7 are outputs, pins 2 and 6 are inverting inputs, pins 3 and 5 are non-inverting inputs, and pins 4 and 8 are the negative and positive supplies, respectively. This pinout compatibility allows the devices to be interchanged on the same PCB footprint, but electrical differences must be validated for the target design.
How do the input offset voltage specifications compare between the ADA4096-2ARMZ and ADA4004-2ARMZ?
The ADA4004-2ARMZ is a precision amplifier with a maximum input offset voltage of 100 µV (typical 50 µV) at 25°C. The ADA4096-2ARMZ has a maximum input offset voltage of 300 µV (typical 35 µV) at 25°C. The ADA4004-2 offers tighter guaranteed offset voltage, making it more suitable for high-precision DC applications.
How do the supply current and power consumption of the ADA4096-2ARMZ and ADA4004-2ARMZ compare?
The ADA4096-2ARMZ typically draws 60 µA per amplifier (120 µA total for the dual) from a 5 V supply, making it suitable for battery-powered and low-power applications. The ADA4004-2ARMZ typically draws 1.7 mA per amplifier (3.4 mA total for the dual), which is significantly higher but supports its higher bandwidth and lower noise performance.
What is the gain bandwidth product and slew rate of each device?
The ADA4096-2ARMZ has a gain bandwidth product of 1 MHz and a slew rate of 0.4 V/µs. The ADA4004-2ARMZ has a gain bandwidth product of 12 MHz and a slew rate of 3 V/µs. The ADA4004-2 provides substantially higher AC performance for wider-bandwidth signal processing.
How does the input overvoltage protection differ between the ADA4096-2ARMZ and ADA4004-2ARMZ?
The ADA4096-2ARMZ features integrated input overvoltage protection that allows the input voltage to exceed the supply rails by up to 32 V without damage or phase inversion, and it does not require external series resistors or Schottky diodes for protection. The ADA4004-2ARMZ does not include this dedicated overvoltage protection feature and requires standard external protection practices when inputs may exceed the supply rails.
How do the voltage noise specifications compare between the ADA4096-2ARMZ and ADA4004-2ARMZ?
The ADA4004-2ARMZ has a low voltage noise density of 6 nV/√Hz at 1 kHz, making it suitable for low-noise precision signal chains. The ADA4096-2ARMZ has a higher voltage noise density of 27 nV/√Hz at 1 kHz, consistent with its micropower design. For noise-sensitive applications, the ADA4004-2 is the preferred choice.
What are the supply voltage ranges for the ADA4096-2ARMZ and ADA4004-2ARMZ?
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 ADA4004-2ARMZ operates from a single supply of 4 V to 36 V or dual supplies of ±2 V to ±18 V. Both devices support rail-to-rail output swing, but the ADA4096-2 also offers rail-to-rail input capability.