RS8552XK is a Replacement parts of
OPA2335AIDR/AD8572ARZ-REEL7/AD8572ARZ
Mfr.Part No. :
RS8552XKManufacturer :
RUNICDescription :
Zero-Drift, Rail-to-Rail I/O CMOS Operational AmplifiersPackaging :
ReelPackage :
SOT23, MSOP8, SOIC 8, MSOP-10, SOIC 14Stock :
in stockPrice :
$0.37-$0.85
RS8552XK
| Price: | $0.37-$0.85 | $2.2-$2.5 | $3.8-$4.5 |
|
Replace parts:
Replacement parts:
Alternative parts:
Pin to pin parts:
|
RS8552XK | OPA2335AIDR |
AD8572ARZ-REEL7
AD8572ARZ
|
High Precision, Low Offset, Dual CMOS Operational Amplifiers
The RS8552XK from RUNIC is a precision dual CMOS operational amplifier optimized for ultra-low offset voltage, low bias current, and rail-to-rail input/output performance. It offers a highly competitive alternative to both Texas Instruments’ OPA2335AIDR and Analog Devices’ AD8572ARZ, with comparable or better specifications in many key areas — all while providing a superior cost-to-performance ratio.
| Parameter | RS8552XK | OPA2335AIDR | AD8572ARZ |
|---|---|---|---|
| Channels | 2 | 2 | 2 |
| Input Offset Voltage (Typ / Max) | 5 μV / 30 μV | 5 μV / 50 μV | 1 μV / 25 μV |
| Offset Voltage Drift (Typ) | 0.01 μV/°C | 0.05 μV/°C | 0.01 μV/°C |
| Input Bias Current (Typ) | ±0.5 pA | ±0.2 pA | ±25 pA |
| Voltage Noise (0.1–10 Hz) | 0.3 μVp-p | 1.1 μVp-p | 0.5 μVp-p |
| Slew Rate | 0.3 V/μs | 0.3 V/μs | 0.3 V/μs |
| Gain Bandwidth Product | 1.2 MHz | 1.5 MHz | 0.5 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.0 V |
| Supply Current (Typ) | 40 μA per amplifier | 50 μA | 900 μA |
| Rail-to-Rail Input/Output | ✅ Yes | ✅ Yes | ✅ Yes |
| Operating Temperature Range | –40°C to +125°C | –40°C to +125°C | –40°C to +125°C |
📌 RS8552XK Advantages:
Ultra-low offset voltage, matching or outperforming industry leaders
Best-in-class noise performance, enhancing resolution in high-sensitivity applications
Significantly lower quiescent current than AD8572 → ideal for battery-powered systems
Widest real-world compatibility, with a full 2.5–5.5V supply range and rail-to-rail I/O
| Feature | RS8552XK | OPA2335AIDR | AD8572ARZ |
|---|---|---|---|
| Package Type | SOIC-8 / MSOP-8 | SOIC-8 / MSOP-8 | SOIC-8 |
| Pin-to-Pin Compatible | ✅ Yes | — | — |
| RoHS & Lead-Free | ✅ Yes | ✅ Yes | ✅ Yes |
🛠️ Design Flexibility:
RS8552XK supports drop-in compatibility with TI and ADI packages, reducing redesign risk and enabling fast product substitution for procurement flexibility or cost optimization.
🔍 Key Application Fields:
Industrial instrumentation
Medical electronics
Sensor signal acquisition
Low-power analog front-ends
Precision reference buffering and ADC drivers
💰 Commercial Highlights:
Equal or better precision compared to TI/ADI devices
Superior power efficiency, ideal for portable or always-on designs
Significant cost savings, especially in volume applications
Fully qualified for industrial temperature range and long-term reliability
The RS8552XK operational amplifier represents a cost-effective, high-performance solution that competes directly with industry-standard devices such as the OPA2335AIDR and AD8572ARZ, while offering:
✅ Ultra-low offset and drift
✅ Superior noise characteristics
✅ Lower power consumption
✅ Excellent value for precision applications
With its strong electrical performance and flexible system compatibility, RS8552XK is the optimal choice for next-generation analog systems that demand accuracy without compromising on cost or power.
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