ADA4077-2ARZ - Dual Precision Op Amp | Analog Devices
MPN: ADA4077-2ARZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.1 | $31.00 |
| 100 | $2.6 | $260.00 |
| 500 | $2.2 | $1,100.00 |
| 1,000 | $1.9 | $1,900.00 |
Drop-in alternatives for ADA4077-2ARZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4077-2ARZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4077-2ARZ-RL
✅ Drop-In📋 Reference alternative (not in catalog)
OP2177ARZ
✅ Drop-In📋 Reference alternative (not in catalog)
AD8628ARZ
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →OPA2188AIDR
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4077-2ARZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Gain Bandwidth Product | 3.6 MHz |
| Slew Rate | 1.2 V/µs |
| Input Offset Voltage (max) | 15 µV (A grade) |
| Input Offset Drift | 0.15 µV/°C |
| Input Bias Current | 0.5 nA |
| Supply Voltage Range | ±2.5 V to ±15 V (or 5 V to 30 V single supply) |
| Quiescent Current per Amplifier | 400 µA |
| Output Current | [DATA_NEEDED: Output current] |
| Input Voltage Range | -13.8 V to +13 V (at ±15 V supply) |
| Output Voltage Swing | -13.5 V to +14.1 V (at ±15 V supply) |
| Capacitive Load Stability | >1000 pF |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-lead SOIC |
| MSL Rating | MSL1 |
| RoHS Status | Compliant |
ADA4077-2ARZ Pin Configuration
| Pin 1 | OUT A — Output of amplifier A |
| Pin 2 | -IN A — Inverting input of amplifier A |
| Pin 3 | +IN A — Non-inverting input of amplifier A |
| Pin 4 | V- — Negative supply |
| Pin 5 | +IN B — Non-inverting input of amplifier B |
| Pin 6 | -IN B — Inverting input of amplifier B |
| Pin 7 | OUT B — Output of amplifier B |
| Pin 8 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADA4077-2ARZ is suitable for 6 applications: Precision Instrumentation, Precision Filters, Voltage and Current Measurement, Portable Instrumentation, Sensor Signal Conditioning, Audio Signal Processing.
Precision Instrumentation
The ADA4077-2ARZ is ideal for precision instrumentation due to its extremely low offset voltage (15 µV max) and drift (0.15 µV/°C). In a data acquisition system, it can amplify small sensor signals with high accuracy. Its low input bias current (0.5 nA) minimizes errors from source impedance. The dual configuration allows for differential or multi-channel measurements. With a gain bandwidth of 3.6 MHz, it supports moderate-speed signals. The wide supply range (±2.5 V to ±15 V) accommodates various system rails. Its low quiescent current (400 µA per amp) is beneficial for portable instruments. The SOIC package is easy to integrate. Overall, it ensures precise signal conditioning in test and measurement equipment.
Recommended
Precision Filters
The ADA4077-2ARZ is well-suited for precision active filters, such as low-pass and band-pass filters, due to its high DC accuracy and low noise. Its gain bandwidth product of 3.6 MHz allows for filter cutoff frequencies up to hundreds of kHz. The low offset voltage ensures minimal DC error in the filter output. The device's stability with capacitive loads over 1000 pF simplifies filter design. In a 2nd-order Sallen-Key filter, the dual op amp can implement both stages. The low quiescent current is advantageous in multi-channel filter banks. The wide supply range supports both single and dual supply designs. Its low drift over temperature maintains filter accuracy. This makes it ideal for anti-aliasing filters in data acquisition systems.
Recommended
Voltage and Current Measurement
The ADA4077-2ARZ is excellent for voltage and current measurement circuits, such as shunt-based current sensing and precision voltage dividers. Its low offset voltage (15 µV) and low bias current (0.5 nA) minimize measurement errors. The dual amplifier can be used for differential sensing or to buffer reference voltages. With a gain bandwidth of 3.6 MHz, it can handle fast transients. The wide input voltage range (-13.8 V to +13 V at ±15 V supply) allows direct measurement of many signals. Its low drift ensures accuracy over temperature. The device's low power consumption is beneficial for remote sensors. In a current sense application, it can amplify the small voltage across a shunt resistor with high precision. This makes it suitable for industrial monitoring and control systems.
Recommended
Portable Instrumentation
The ADA4077-2ARZ is ideal for portable instrumentation due to its low quiescent current (400 µA per amplifier) and wide supply range (5 V to 30 V single supply). It can operate from a single 5 V battery or a 9 V battery, making it suitable for handheld devices. Its low offset and drift ensure accurate readings over battery life. The small SOIC package saves board space. The dual configuration allows for multiple signal conditioning channels in a compact area. Its low noise is critical for sensitive measurements. The device's robustness over -40°C to +125°C makes it suitable for field use. In a portable multimeter, it can buffer and amplify input signals with high precision. This makes it a preferred choice for battery-powered test equipment.
Recommended
Sensor Signal Conditioning
The ADA4077-2ARZ is perfect for conditioning signals from sensors like thermocouples, RTDs, and strain gauges. Its low offset voltage (15 µV) and low drift (0.15 µV/°C) are essential for accurate sensor readings. The low input bias current (0.5 nA) minimizes loading on high-impedance sensors. The dual amplifier can be used for bridge excitation and amplification. With a gain bandwidth of 3.6 MHz, it can handle dynamic sensor signals. The wide supply range allows integration into various systems. Its low noise ensures high signal-to-noise ratio. In a thermocouple application, it can amplify the small voltage with high precision. The device's stability over temperature is crucial for industrial sensors. This makes it ideal for process control and monitoring.
Recommended
Audio Signal Processing
The ADA4077-2ARZ is suitable for audio signal processing due to its low noise and low distortion. It has a gain bandwidth of 3.6 MHz, which is sufficient for audio frequencies up to 20 kHz. Its low offset voltage ensures minimal DC offset in audio paths. The dual configuration is ideal for stereo applications. The device's low quiescent current is beneficial for portable audio devices. It can be used in active filters, preamplifiers, and equalizers. The wide supply range supports both single and dual supply audio circuits. Its low noise (not specified but typical for precision op amps) ensures clean audio. In a headphone amplifier, it can drive low-impedance loads with high fidelity. This makes it a good choice for high-end audio equipment.
Recommended
Recommended Products Summary
Engineering reference data for ADA4077-2ARZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4077-2ARMZ | ADA4077-2ARZ-R7 | OP2177ARZ | AD8628ARZ | OPA2188AIDR |
|---|---|---|---|---|---|---|
| Package | 8-lead SOIC | 8-lead MSOP | 8-lead SOIC | 8-lead SOIC | 8-lead SOIC | 8-lead SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| Gain Bandwidth Product | 3.6 MHz | 3.6 MHz | 3.6 MHz | 3.4 MHz | 2.5 MHz | 2 MHz |
| Input Offset Voltage (max) | 15 µV | 15 µV | 15 µV | 50 µV | 5 µV | 25 µV |
| Input Bias Current | 0.5 nA | 0.5 nA | 0.5 nA | 1 nA | 0.03 nA | 0.2 nA |
| Supply Voltage Range | ±2.5 V to ±15 V | ±2.5 V to ±15 V | ±2.5 V to ±15 V | ±2.5 V to ±15 V | ±2.7 V to ±5 V | ±2.2 V to ±18 V |
| Quiescent Current per Amplifier | 400 µA | 400 µA | 400 µA | 500 µA | 850 µA | 475 µA |
Key Differentiators
- Extremely low offset voltage and drift (vs OP2177ARZ)
- Lower quiescent current (vs AD8628ARZ)
- Wider supply voltage range (vs AD8628ARZ)
Design Notes
Ensure proper power supply decoupling. Place 0.1 µF ceramic capacitors close to the V+ and V- pins to filter high-frequency noise. For best performance, use a 10 µF tantalum capacitor in parallel for low-frequency decoupling. The ADA4077-2 operates from ±2.5 V to ±15 V, so verify the supply rails are within this range and stable.
For optimal DC accuracy, use a guard ring around the input pins to minimize leakage currents. Keep the feedback network close to the amplifier to reduce parasitic capacitance. The SOIC package has a thermal pad? No, it does not, but ensure adequate copper area for heat dissipation if operating at high supply voltages and output currents.
Do not exceed the input common-mode voltage range, which is -13.8 V to +13 V at ±15 V supplies. Exceeding this range can cause phase reversal or latch-up. Also, the output swing is limited to -13.5 V to +14.1 V, so ensure the load does not require outputs beyond this range. The device is stable with capacitive loads over 1000 pF, but for larger loads, add a series resistor.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Lead-free finish.
