MAX4231ART+ Analog Devices Integrated Circuit (BGA) In Stock
MAX4231ART+ is a single-channel general-purpose operational amplifier with ultra-low bias current (1 pA typical at 25°C) and 70 dB typical CMRR in a tiny 6-ball UCSP package. It features voltage-feedback architecture with frequency compensation, suited for precision sensor interfaces and portable measurement circuits.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MAX4231ART+ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX4231ART+?
- Ultra-low input bias current of 1 pA typical at 25°C for high-impedance signal sources
- 70 dB typical common-mode rejection ratio for noise immune signal conditioning
- Single-channel voltage-feedback operational amplifier with internal frequency compensation
- Miniature 6-ball UCSP package for space-constrained portable and wearable designs
- 52 dB minimum CMRR ensuring stable DC accuracy across temperature
What is MAX4231ART+ used for?
MAX4231ART+ is well suited for precision sensor amplification, photodiode transimpedance stages, and portable measurement instruments where ultra-low 1 pA input bias current is essential to avoid loading high-impedance sources. Its tiny UCSP package makes it a practical choice for miniaturized medical devices, hearing aids, and compact data acquisition modules where board space is at a premium.
What are the specifications of MAX4231ART+?
| Manufacturer Package Code | N/A |
| Date Of Intro | 2002-03-29 |
| YTEOL | 8.5 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00055 µA |
| Bias Current-Max (IIB) @25C | 0.000001 µA |
| Common-mode Reject Ratio-Min | 52dB |
| Common-mode Reject Ratio-Nom | 70dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 8000 µV |
| JESD-30 Code | R-PBGA-B6 |
| JESD-609 Code | e1 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 10V/us |
| Supply Current-Max | 11.2mA |
| Supply Voltage Limit-Max | 6V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 10000 |
| Voltage Gain-Min | 2240 |
| Wideband | NO |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX4231ART+ datasheet?
MAX4231ART+ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX4231ART+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input bias current of MAX4231ART+ and why does it matter for photodiode amplifier designs?
MAX4231ART+ has a typical input bias current of only 1 pA at 25°C, with a maximum average of 0.00055 µA. Such ultra-low bias current is critical in photodiode transimpedance amplifiers because any bias current flowing through the feedback resistor adds a DC offset error directly to the output voltage.
How does the 70 dB CMRR of MAX4231ART+ affect its performance in single-supply sensor circuits?
With 70 dB typical common-mode rejection ratio and 52 dB minimum, MAX4231ART+ suppresses common-mode noise by a factor of over 300:1 even in worst-case conditions. This makes it reliable in single-supply circuits where the common-mode input voltage shifts with supply voltage, as occurs in bridge sensor amplifiers and industrial measurement front ends.
How compact is the MAX4231ART+ footprint and how does it compare to a standard SOT-23 op-amp package?
MAX4231ART+ is housed in a 6-ball UCSP package, which has a much smaller footprint than a standard 5-pin SOT-23, typically occupying less than 1 mm² of board area. This reduction in size is significant in wearable electronics, hearing aids, and multi-channel sensor boards where dozens of amplifier stages must fit in a limited area.
Is MAX4231ART+ still in production and what is the lifecycle status for long-term procurement planning?
MAX4231ART+ was introduced in March 2002 and carries a YTEOL (years to end of life) rating of 8.5, indicating it is expected to remain available for an extended period. Buyers planning multi-year production runs should confirm current lifecycle status and stock availability with their distributor for accurate lead-time planning.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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