ADA4077-2ARZ - Dual Precision Op Amp | Analog Devices
MPN: ADA4077-2ARZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.19 | $2,190.00 |
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
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OP2177ARZ
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OPA2177AIDR
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ADA4077-2ARZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Gain Bandwidth Product | 3.6 MHz |
| Slew Rate | 1.2 V/µs |
| Maximum Offset Voltage | 15 µV (A grade) |
| Offset Voltage 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 |
| Capacitive Load Stability | >1000 pF |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-lead SOIC |
| MSL Level | 1 |
| RoHS Status | Compliant |
| 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) |
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 voltage |
| 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 voltage |
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, Sensor Signal Conditioning, Audio Processing, Data Acquisition Systems.
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 minimal error. Its low input bias current (0.5 nA) reduces errors when driving high-impedance sources. The dual configuration allows for differential or multi-channel measurements, and its wide supply range supports both battery and line-powered designs.
Recommended
Precision Filters
The ADA4077-2ARZ is well-suited for precision active filters, such as low-pass and high-pass filters in signal conditioning chains. Its 3.6 MHz gain bandwidth product and 1.2 V/µs slew rate allow accurate filtering of signals up to a few hundred kHz. The low offset and drift ensure DC accuracy in the passband. The dual package enables implementing a second-order filter with a single IC, saving board space. Its low noise contributes to a high signal-to-noise ratio.
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 drift (0.15 µV/°C) minimize measurement errors. The low input bias current (0.5 nA) reduces loading on high-impedance sources. The dual amplifier can be used for differential sensing or to buffer reference voltages. Its wide supply range accommodates various measurement systems.
Recommended
Sensor Signal Conditioning
The ADA4077-2ARZ is ideal for conditioning signals from sensors like thermocouples, RTDs, and strain gauges. Its low offset and drift ensure accurate amplification of small sensor outputs. The low input bias current minimizes errors from high source impedances. The dual configuration allows for bridge excitation and amplification in a single package. Its low noise preserves sensor signal integrity, and the wide temperature range (-40°C to +125°C) suits industrial environments.
Recommended
Audio Processing
The ADA4077-2ARZ is suitable for high-quality audio processing, such as active crossovers and equalizers. Its low noise and low distortion ensure clean audio reproduction. The dual configuration is perfect for stereo channels. With a gain bandwidth of 3.6 MHz, it can handle audio frequencies with ease. The low offset voltage prevents DC offset in the output, which is important for speaker protection. Its low power consumption (400 µA per amp) is beneficial for portable audio devices.
Recommended
Data Acquisition Systems
The ADA4077-2ARZ is a key component in data acquisition systems, providing signal conditioning before ADC conversion. Its low offset and drift ensure accurate representation of analog signals. The low input bias current minimizes errors when driving ADC inputs. The dual amplifier can be used for anti-aliasing filters or buffer stages. Its wide supply range and low power consumption make it suitable for multi-channel DAQ systems. The SOIC package is easy to integrate into PCB designs.
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 | OP2177ARZ | OPA2177AIDR |
|---|---|---|---|---|
| Package | 8-lead SOIC | 8-lead MSOP | 8-lead SOIC | 8-lead SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 |
| Gain Bandwidth Product | 3.6 MHz | 3.6 MHz | 1.3 MHz | 10 MHz |
| Maximum Offset Voltage | 15 µV | 15 µV | 50 µV | 50 µV |
| Input Bias Current | 0.5 nA | 0.5 nA | 1 nA | 1 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 ±18 V |
| Quiescent Current per Amplifier | 400 µA | 400 µA | 500 µA | 750 µA |
Key Differentiators
- Lower offset voltage and drift (vs OP2177ARZ)
- Higher gain bandwidth product (vs OP2177ARZ)
- Lower quiescent current (vs OPA2177AIDR)
Design Notes
Ensure proper power supply decoupling by placing 0.1 µF ceramic capacitors close to the V+ and V- pins. For best performance, use a 10 µF tantalum capacitor in parallel for low-frequency decoupling. The ADA4077-2ARZ operates from ±2.5 V to ±15 V, so verify that the supply rails are within this range and have low noise to avoid degrading the op amp's precision.
For optimal performance, use a ground plane and keep the input traces short and shielded from noise sources. The ADA4077-2ARZ has low input bias current, but high-impedance inputs are susceptible to leakage currents from PCB contamination. Clean the board thoroughly and consider using guard rings around the input pins to minimize leakage. Also, ensure the thermal pad (if present) is properly soldered for heat dissipation.
Avoid exceeding the absolute maximum supply voltage of 30 V. The input common-mode range is limited to -13.8 V to +13 V at ±15 V supplies; operating outside this range can cause phase reversal. Also, the output swing is limited to -13.5 V to +14.1 V, so ensure your circuit does not require outputs beyond these limits. For capacitive loads over 1000 pF, the device is stable, but for larger loads, add a series resistor to isolate the output.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Lead-free per datasheet.