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Analog Devices Inc./Maxim Integrated MAX44260AYT+
- Part No.:
- MAX44260AYT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-UFLGA
- Datasheet:
-
MAX44260AYT+.pdf
- Description:
- 1.8V, 15MHZ LOW-OFFSET, LOW-POWE
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
The MAX44260AYT+ from Maxim Integrated is a single, rail-to-rail input/output precision operational amplifier optimized for low-noise, low-power signal conditioning in portable and industrial systems. It delivers 15MHz unity-gain bandwidth, 12.7nV/√Hz input voltage noise, 50µV max input offset voltage at +25°C, 750µA quiescent current per amplifier, and fast 18.9µs shutdown turn-on time - enabling high-fidelity ADC driver and Sallen-Key filter applications in battery-powered medical instruments and handheld devices.
For engineers reviewing the MAX44260AYT+ datasheet, MAX44260AYT+ pinout, MAX44260AYT+ application, or MAX44260AYT+ equivalent, this page provides verified technical context, package-specific pin mapping, real-world application cards, and two validated alternative op amps with documented functional and parametric differences.
Technical Context
The MAX44260AYT+ employs an ultra-quiet integrated charge pump that generates an internal rail 1V above VDD to power its PMOS input stage - eliminating crossover distortion without external components or performance trade-offs. Its rail-to-rail input extends 100mV beyond supply rails, and output swing is limited to only 20mV above VSS and 10mV below VDD at 10kΩ load.
This architecture enables stable operation with capacitive loads up to 300pF and supports high-precision, low-distortion (–110dB THD) signal buffering across 1.8V–5.5V supplies and –40°C to +125°C. The device performs automatic VOS self-calibration on power-up and features active-low shutdown with <1µA supply current and high-impedance I/O states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 15MHz - supports high-speed filtering and ADC driving up to 10kHz corner frequencies with minimal phase error. |
| Input Voltage Noise Density | 12.7nV/√Hz at 10kHz - preserves SNR in 12- to 14-bit SAR ADC front-ends. |
| Input Offset Voltage (max) | 50µV at +25°C - ensures DC accuracy in precision sensor interfaces and transimpedance amplifiers. |
| Quiescent Current | 750µA per amplifier - enables multi-hour battery life in portable medical monitors and handheld test equipment. |
| Shutdown Supply Current | <1µA - reduces system standby power by >99.8% versus active mode. |
| Rail-to-Rail Output Swing | 20mV above VSS / 10mV below VDD at 10kΩ - maximizes dynamic range in single-supply 3.3V systems. |
| Capacitive Load Drive | 300pF - allows direct connection to ADC input filters without isolation resistors. |
Pinout & Package
The MAX44260AYT+ is housed in a 6-pin thin µDFN (Ultra-Thin LGA) package measuring 1.0mm × 1.5mm with 0.5mm pitch, optimized for space-constrained PCB layouts in wearables and portable diagnostics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDD | Positive power supply | Accepts 1.8V–5.5V; requires 0.1µF bypass capacitor to VSS for stability. |
| 2 - IN+ | Noninverting input | Rail-to-rail capable (–0.1V to VDD+0.1V); ultra-low 0.5pF input capacitance minimizes filter interaction. |
| 3 - IN− | Inverting input | Matches IN+ in common-mode range and noise performance; critical for balanced feedback networks. |
| 4 - OUT | Amplifier output | Drives 10kΩ loads to within 20mV of rails; sustains 50mA short-circuit current for fault tolerance. |
| 5 - SHDN | Active-low shutdown control | Logic-compatible with 1.8V/3.3V microcontrollers; asserts high-impedance I/O and sub-1µA quiescent current. |
| 6 - VSS | Negative power supply / ground | Reference for all signals; must be decoupled with 0.1µF capacitor near package. |
Key Features
| Feature | Design Value |
|---|---|
| Charge-pump input stage | Eliminates crossover distortion in noninverting configurations (e.g., Sallen-Key filters), verified across –40°C to +125°C. |
| Power-up autotrim | Self-calibrates input offset to ≤50µV at +25°C without user intervention; retains trim through shutdown cycles. |
| Ultra-low input bias current | 0.01pA typical at +25°C - enables high-gain transimpedance amplification for photodiode sensors. |
| Wide supply range | Operates from 1.8V to 5.5V - simplifies design across Li-ion, coin-cell, and 3.3V/5V industrial rails. |
| Low THD | –110dB at 10kHz, 2VP-P - maintains signal integrity in audio and instrumentation signal chains. |
Applications
| Portable Medical Instrumentation | 12-Bit SAR ADC Driver |
|---|---|
Use Scenario: Signal conditioning for ECG front-end amplifiers in handheld patient monitors. IC Role / Device Role / Timing Role: Precision buffer and anti-aliasing filter driver with rail-to-rail I/O and sub-50µV offset. Use Value: Enables accurate DC-coupled biopotential measurement without AC coupling artifacts or gain drift over temperature. |
Use Scenario: Driving the MAX11645 12-bit, 94ksps ADC in compact data loggers. IC Role / Device Role / Timing Role: Low-noise, fast-settling (1.7µs to 0.01%) analog front-end buffer. Use Value: Preserves ENOB by limiting input-referred noise to 12.7nV/√Hz and avoiding distortion-induced harmonic folding. |
| Sallen-Key Active Filter | Battery-Operated Sensor Interface |
Use Scenario: 10kHz low-pass filter in portable spectrum analyzers and audio analyzers. IC Role / Device Role / Timing Role: Unity-gain stable amplifier with 15MHz GBW and 300pF capacitive load drive. Use Value: Achieves sharp stopband attenuation without external isolation resistors or compensation networks. |
Use Scenario: Interfacing high-impedance pH and gas sensors in field-deployable environmental sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier with 0.01pA input bias current and rail-to-rail output swing. Use Value: Minimizes sensor loading error and maximizes dynamic range in single-supply 3.3V battery systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260AXT+ | Same die, SC70-6 package (2.0mm × 2.0mm); 326.5°C/W junction-to-ambient thermal resistance vs. 470°C/W for µDFN. | Better thermal performance in moderate-power continuous operation; larger footprint limits ultra-dense layouts. | Select when board layout allows 2mm × 2mm area and thermal dissipation >110mW is required. |
| OPA333AIDBVR | Zero-drift architecture; 0.1µV/°C offset drift vs. 0.8–5µV/°C for MAX44260AYT+; 350kHz GBW vs. 15MHz. | Superior DC precision for µV-level sensor offsets; insufficient bandwidth for >10kHz filter or ADC driving. | Select for ultra-stable DC-coupled sensor bridges where speed is secondary to long-term offset stability. |
Compared with MAX44260AXT+, the MAX44260AYT+ trades higher thermal resistance for 33% smaller footprint and identical electrical specs; compared with OPA333AIDBVR, it offers 43× more bandwidth but less drift-critical DC accuracy - making each optimal for distinct signal-chain roles.
Availability
MAX44260AYT+ is available at Aetrix Electronics and suitable for portable medical instrumentation, 12-bit SAR ADC driver designs, and Sallen-Key active filter implementations requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX44260AYT+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for demanding industrial, medical, and communications applications, with emphasis on integration, precision, and power efficiency.
The MAX44260AYT+ belongs to Maxim's low-power, high-accuracy op amp family targeting battery-operated signal conditioning - specifically engineered for rail-to-rail I/O, ultra-low noise, and shutdown-enabled energy conservation in space-constrained systems.
FAQ
What is the maximum operating temperature range for the MAX44260AYT+?
The MAX44260AYT+ is specified for continuous operation from –40°C to +125°C. This extended temperature range is guaranteed by design and validated across production testing, making the MAX44260AYT+ suitable for under-hood automotive sensor interfaces and industrial process controllers where ambient temperatures exceed +85°C.
Does the MAX44260AYT+ require external components for its charge-pump input stage?
No, the MAX44260AYT+ integrates a fully self-contained ultra-quiet charge pump that operates transparently - no external capacitors, resistors, or configuration pins are needed. The charge pump runs at a frequency well above the 15MHz unity-gain bandwidth, ensuring no measurable noise injection or stability impact on the MAX44260AYT+'s output signal.
How does shutdown mode affect the input offset voltage calibration of the MAX44260AYT+?
The MAX44260AYT+ retains its power-up autotrim calibration state during shutdown. When exiting shutdown, the MAX44260AYT+ resumes operation with the same ≤50µV offset measured at power-on - no recalibration occurs, and the 10ms autotrim sequence is not retriggered unless full power cycling is performed.
Can the MAX44260AYT+ drive a 10kΩ load rail-to-rail at 3.3V supply?
Yes - the MAX44260AYT+ delivers rail-to-rail output swing with only 20mV headroom above VSS and 10mV headroom below VDD when sourcing/sinking into a 10kΩ load at 3.3V supply. This 30mV total overhead preserves >98% of the 3.3V dynamic range, critical for maximizing resolution in single-supply ADC applications.
Is the MAX44260AYT+ pin-compatible with other members of the MAX442xx family?
No - the MAX44260AYT+ in thin µDFN uses a unique 6-pin pinout (VDD, IN+, IN−, OUT, SHDN, VSS) that differs from the SC70-6 variant (MAX44260AXT+) only in physical layout, not signal assignment. However, it is not pin-compatible with MAX44261 (CAL pin instead of SHDN) or MAX44263 (dual-channel, 8-pin SC70), as pin functions and counts differ fundamentally.
MAX44260AYT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-UFLGA
- Packaging:
- Strip
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.01 pA
- Voltage - Input Offset:
- 10 µV
- Current - Supply:
- 750µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTLGA (1.5x1.0)
MAX44260AYT+ FAQ
1.How can I place an order for MAX44260AYT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX44260AYT+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX44260AYT+ reliable?
The price and inventory of MAX44260AYT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX44260AYT+ is usually 5 days.
3.What payment methods are accepted for MAX44260AYT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX44260AYT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX44260AYT+?
MAX44260AYT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX44260AYT+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX44260AYT+?
For technical support, including MAX44260AYT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX44260AYT+ requirements.
6.How does Aetrix verify that MAX44260AYT+ is sourced from the original manufacturer or authorized distributors?
All MAX44260AYT+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX44260AYT+ meets industry standards.
7.What is the process for return or replacement of MAX44260AYT+?
All MAX44260AYT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX44260AYT+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX44260AYT+ part is unused and in its original packaging.
Return procedure for MAX44260AYT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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