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Analog Devices Inc./Maxim Integrated MAX44260AYT+T
- Part No.:
- MAX44260AYT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-UFLGA
- Datasheet:
-
MAX44260AYT+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 6UTLGA
- Quantity:
- Payment:
- Shipping:
Inventory:7,172
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Product details
Overview
MAX44260AYT+T 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 gain-bandwidth, 12.7nV/√Hz input voltage noise, 750µA quiescent current per amplifier, and <1µA shutdown supply current, enabling high-fidelity ADC driver and active filter applications down to 1.8V supply.
For engineers reviewing the MAX44260AYT+T datasheet, MAX44260AYT+T pinout, MAX44260AYT+T application, or MAX44260AYT+T equivalent, this page provides verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for battery-powered instrumentation, SAR ADC buffering, and Sallen-Key filter design.
Technical Context
The MAX44260AYT+T 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 within 50mV of VDD/VSS at 10kΩ load.
This architecture enables stable operation with capacitive loads up to 300pF and supports fast power-on recovery (≤30µs) and shutdown entry/exit while retaining calibrated offset voltage. The device operates across -40°C to +125°C on 1.8V–5.5V supplies and is production-tested at +25°C for VOS ≤50µV, GBWP = 15MHz, and THD = -110dB at 10kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 15MHz - supports stable unity-gain Sallen-Key filters up to 10kHz corner frequency with >60dB stopband attenuation. |
| Input Voltage-Noise Density | 12.7nV/√Hz at 10kHz - preserves SNR in 12- to 14-bit SAR ADC driver stages without degrading effective resolution. |
| Quiescent Current | 750µA per amplifier - enables continuous operation in multi-day battery-powered medical sensors. |
| Shutdown Supply Current | <1µA - reduces system standby power by >99% versus active mode, critical for intermittent-sampling architectures. |
| Input Offset Voltage | 50µV max at +25°C - ensures ≤0.12% full-scale error in 12-bit systems with ±2.5V input range. |
| Rail-to-Rail Output Swing | Within 50mV of VDD/VSS at 10kΩ - maximizes dynamic range in single-supply 3.3V data acquisition front-ends. |
| Supply Voltage Range | 1.8V to 5.5V - allows direct interface with Li-ion, coin-cell, and 3.3V/5V logic domains without LDO overhead. |
Pinout & Package
MAX44260AYT+T is housed in a 6-pin thin µDFN (ultra-thin LGA) package measuring 1.0mm × 1.5mm × 0.4mm, optimized for space-constrained portable PCBs. Thermal resistance is 470°C/W (junction-to-ambient), requiring minimal copper area for thermal management in ambient temperatures up to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Noninverting input; accepts common-mode voltages from VSS − 0.1V to VDD + 0.1V for true rail-to-rail operation. |
| 2 | VSS | Negative power supply; requires local 0.1µF ceramic bypass capacitor to ground for PSRR stability. |
| 3 | IN− | Inverting input; matched to IN+ for CMRR ≥90dB and low input bias current (0.5pA typ). |
| 4 | OUT | Amplifier output; drives ≥10kΩ loads with <50mV headroom to VDD/VSS and sustains 50mA short-circuit current. |
| 5 | SHDN | Active-low shutdown control; compatible with 1.8V/3.3V GPIO; places inputs/outputs in high-Z state with <1µA supply draw. |
| 6 | VDD | Positive power supply; supports 1.8V–5.5V operation; requires local 0.1µF ceramic bypass capacitor to VSS. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input voltage noise | 12.7nV/√Hz enables sub-12-bit noise floor in transimpedance amplifiers for photodiode-based medical sensors. |
| Charge-pump input stage | Eliminates crossover distortion in noninverting configurations-critical for distortion-sensitive Sallen-Key filter linearity. |
| Fast shutdown recovery | ≤30µs turn-on time allows microsecond-level duty cycling in energy-harvesting sensor nodes. |
| High open-loop gain | 115dB AOL ensures <0.001% gain error in precision instrumentation amplifier feedback networks. |
| Low input bias current | 0.5pA typical at +25°C supports GΩ-range sensor interfacing (e.g., pH electrodes, piezoresistive strain gauges). |
Applications
| Portable Medical Instrumentation | 12-Bit SAR ADC Driver |
|---|---|
|
Use Scenario: Signal conditioning for ECG front-end amplifiers in handheld patient monitors with 3.3V Li-ion supply. IC Role / Device Role / Timing Role: Single-supply rail-to-rail op amp buffering analog sensor outputs before digitization. Use Value: 12.7nV/√Hz noise density and 50µV VOS preserve diagnostic accuracy in 12-bit ECG waveforms sampled at 1ksps. |
Use Scenario: Driving MAX11645 12-bit ADC inputs in battery-powered data loggers. IC Role / Device Role / Timing Role: Low-distortion unity-gain buffer isolating ADC sample-and-hold input from source impedance. Use Value: -110dB THD at 10kHz and 15MHz GBWP ensure <0.01% harmonic distortion in full-scale 2VP-P signals. |
| Sallen-Key Active Filter | Transimpedance Amplifier |
|
Use Scenario: 10kHz low-pass filtering in portable audio codecs and ultrasound signal chains. IC Role / Device Role / Timing Role: High-speed op amp implementing second-order unity-gain Sallen-Key topology. Use Value: Crossover-free input stage eliminates distortion at filter passband edges; 300pF capacitive load tolerance simplifies layout. |
Use Scenario: Photodiode current-to-voltage conversion in pulse oximeters and environmental light sensors. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with ultra-low input bias current and voltage noise. Use Value: 0.5pA IB and 12.7nV/√Hz en enable accurate measurement of pA-level photocurrents under low-light conditions. |
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 electrical specs but in 6-pin SC70 (2mm × 2mm); 326.5°C/W θJA vs. 470°C/W for µDFN. | Better thermal performance in airflow-limited environments; larger footprint limits ultra-dense portable layouts. | Select when board-level thermal dissipation >100mW is required or SC70 reflow compatibility is preferred. |
| OPA333AIDBVR | 17µV VOS (max), 0.65µA IQ, 350kHz GBWP; no shutdown; 5-pin SOT23 package. | Lacks shutdown and high-speed capability; suited for ultra-low-offset DC-coupled sensor interfaces only. | Choose only for static, low-bandwidth (<100kHz) applications where offset trumps speed and power savings. |
Compared with MAX44260AXT+, the MAX44260AYT+T trades thermal margin for 67% smaller footprint-ideal for wearables and implantables. Versus OPA333AIDBVR, it delivers 43× higher bandwidth and integrated shutdown, making it superior for dynamic, battery-sensitive signal chains.
Availability
MAX44260AYT+T is available at Aetrix Electronics and suitable for portable medical instrumentation, 12-bit SAR ADC driver circuits, and Sallen-Key active filter designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX44260AYT+T 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 portable applications.
The MAX44260AYT+T belongs to Maxim's precision low-power op amp family targeting battery-operated signal conditioning-specifically engineered for rail-to-rail operation, ultra-low noise, and fast shutdown in space- and power-constrained systems.
FAQ
What is the maximum capacitive load the MAX44260AYT+T can drive without oscillation?
The MAX44260AYT+T is stable with capacitive loads up to 300pF when used in unity-gain configuration, as confirmed in the datasheet's stability plots (toc26/toc27). For loads exceeding 300pF, an isolation resistor (≥20Ω) between the output and capacitance is required to maintain phase margin. This capability makes MAX44260AYT+T suitable for driving ADC input filters and long PCB traces without external compensation.
Does the MAX44260AYT+T perform automatic self-calibration on power-up?
Yes, the MAX44260AYT+T performs automatic VOS self-calibration during power-up via internal POR circuitry, reducing input offset voltage to ≤50µV at +25°C. Unlike the MAX44261, it does not support user-triggered recalibration-the calibration occurs once at startup and remains valid until next power cycle. This behavior is inherent to the MAX44260AYT+T silicon design and requires no external intervention.
What is the shutdown input logic threshold for the MAX44260AYT+T?
The MAX44260AYT+T SHDN pin has guaranteed logic thresholds of VIL ≤ 0.5V (shutdown active) and VIH ≥ 1.3V (normal operation), independent of supply voltage. This allows direct interfacing with 1.8V or 3.3V microcontrollers without level-shifting. During shutdown, MAX44260AYT+T draws <1µA and places both inputs and output in high-impedance state.
Can the MAX44260AYT+T operate from a 1.7V supply?
No-the MAX44260AYT+T is specified for 1.8V to 5.5V operation over the full -40°C to +125°C temperature range. While some members of the MAX442xx family (e.g., MAX44259) support 1.7V at 0°C to +70°C, the MAX44260AYT+T datasheet explicitly guarantees operation only from 1.8V across its rated temperature range. Operating below 1.8V may result in undefined VOS, GBWP, or shutdown behavior.
What is the thermal resistance (θJA) of the MAX44260AYT+T thin µDFN package?
The junction-to-ambient thermal resistance (θJA) of the MAX44260AYT+T in its 6-pin thin µDFN (ultra-thin LGA) package is 470°C/W, measured per JEDEC JESD51-7 on a four-layer board. This value reflects the package's compact 1.0mm × 1.5mm footprint and requires careful attention to copper pour and thermal vias in high-ambient or high-power-density designs to avoid exceeding the +150°C absolute maximum junction temperature.
MAX44260AYT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 6-UFLGA
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Current - Supply:
- 750µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.7 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+T FAQ
1.How can I place an order for MAX44260AYT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX44260AYT+T 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+T reliable?
The price and inventory of MAX44260AYT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX44260AYT+T is usually 5 days.
3.What payment methods are accepted for MAX44260AYT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX44260AYT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX44260AYT+T?
MAX44260AYT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX44260AYT+T 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+T?
For technical support, including MAX44260AYT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX44260AYT+T requirements.
6.How does Aetrix verify that MAX44260AYT+T is sourced from the original manufacturer or authorized distributors?
All MAX44260AYT+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX44260AYT+T?
All MAX44260AYT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX44260AYT+T, 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+T part is unused and in its original packaging.
Return procedure for MAX44260AYT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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