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Analog Devices Inc./Maxim Integrated MAX40110AYT+
- Part No.:
- MAX40110AYT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-UFLGA
- Datasheet:
-
MAX40110AYT+.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 6UTLGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,941
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Product details
Overview
MAX40110AYT+ from Maxim Integrated is a precision, low-noise, rail-to-rail input/output operational amplifier optimized for high-dynamic-range signal conditioning in space-constrained, low-power systems. It delivers 15MHz gain-bandwidth, 12.7nV/√Hz input voltage noise, <140μV max input offset voltage (after power-on auto-calibration), and operates from 1.8V to 5.5V supply across –40°C to +125°C - making it ideal for SAR ADC driver applications in portable medical sensors.
For engineers reviewing the MAX40110AYT+ datasheet, MAX40110AYT+ pinout, MAX40110AYT+ application, or MAX40110AYT+ equivalent, key selection criteria include its sub-1ms power-up time with on-chip VOS autotrim, ultra-low input bias current (<12pA), EMI-hardened architecture, and compatibility with 12–14-bit SAR ADCs such as the MAX11645 in single-supply, battery-powered designs.
Technical Context
The MAX40110AYT+ employs a proprietary CMOS input stage with an integrated ultra-quiet charge pump that generates a 1V-above-VDD internal rail, enabling true rail-to-rail input operation without crossover distortion. This architecture eliminates switching artifacts in noninverting configurations like Sallen-Key filters and photodiode transimpedance amplifiers.
It features a power-on self-calibration routine that reduces input offset voltage to ≤30μV at +25°C and retains calibration through shutdown; shutdown recovery occurs in ≤29μs with output high-impedance state and <1μA quiescent current. Its 750μA typical supply current and 1.8V minimum supply support always-on sensor front-ends in wearable and industrial IoT nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 15MHz - supports stable unity-gain buffer and 2nd-order active filter designs up to ~10kHz corner frequency with minimal phase margin loss. |
| Input Voltage Noise Density | 12.7nV/√Hz @10kHz - enables high-fidelity amplification of microvolt-level sensor signals (e.g., EKG, pressure bridges) without degrading SNR. |
| Input Offset Voltage (max) | 140μV @ +25°C - guaranteed post-power-up calibration ensures DC accuracy in precision instrumentation without external trimming. |
| Supply Current (typ) | 750μA - allows continuous operation in coin-cell-powered devices with multi-week battery life at 3.3V. |
| Rail-to-Rail I/O | Input extends to –0.1V and VDD+0.1V; output swings within 20mV of rails @10kΩ - maximizes dynamic range in single-supply 3.3V systems driving ADCs. |
| Power-Up Time | <1ms - includes full VOS autotrim sequence; enables rapid wake-from-sleep signal acquisition in duty-cycled sensor nodes. |
| Shutdown Current | 1μA - reduces system standby power by >99% while preserving calibrated offset state for immediate reactivation. |
Pinout & Package
MAX40110AYT+ is housed in an ultra-thin 6-pin μDFN (1.5mm × 1.5mm × 0.5mm, package code Y61A1+1), suitable for high-density PCB layouts in wearables and compact medical modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Input | High-impedance CMOS node; accepts signals from 0V to VDD+0.1V; optimized for low-input-bias-current sensor interfaces (e.g., photodiodes). |
| 2 (GND) | Ground Reference | Primary return path for supply and signal currents; must be connected to low-impedance system ground plane to maintain PSRR & noise performance. |
| 3 (IN−) | Inverting Input | Differential input node; supports precision closed-loop configurations including transimpedance, difference, and active filter topologies. |
| 4 (OUT) | Amplifier Output | Capable of driving ≥10kΩ loads to rail; stable with ≤300pF capacitive load; designed for direct connection to ADC inputs or RC anti-aliasing filters. |
| 5 (SHDN) | Active-Low Shutdown Control | Logic-compatible input (VIH = 1.3V min); asserts high-impedance output and cuts supply current to 1μA; independent of VDD for mixed-voltage MCU interfacing. |
| 6 (VDD) | Positive Supply | Accepts 1.8V–5.5V; internal charge pump derives auxiliary rail for input stage; bypass capacitor (≥100nF) required at pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Power-On Auto-Calibration | Reduces input offset to ≤30μV at +25°C in <1ms, eliminating manual trimming and drift compensation in production calibration flows. |
| Charge-Pump Input Architecture | Eliminates crossover distortion in rail-to-rail input operation - critical for low-THD audio and precision active filter applications. |
| EMI-Hardened Design | Integrated filtering rejects RF interference from cellular/Wi-Fi bands without external ferrites, improving reliability in noisy portable environments. |
| Ultra-Low Input Bias Current | <12pA @ +85°C - preserves signal integrity when amplifying high-impedance sources (e.g., pH electrodes, piezoresistive sensors). |
| Fast Shutdown Recovery | ≤29μs turn-on from shutdown - enables burst-mode sensing with minimal latency penalty in energy-harvesting or battery-limited systems. |
Applications
| Wearable Biosensor Front-End | Portable Blood Pressure Monitor |
|---|---|
|
Use Scenario: Amplifying mV-level EKG or PPG signals from dry electrodes in wrist-worn devices with strict size and power constraints. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance and buffer amplifier; provides rail-to-rail swing into anti-aliasing filter before 12-bit SAR ADC sampling. Use Value: 12.7nV/√Hz noise density and <140μV offset ensure ≥90dB SNR and accurate baseline tracking over temperature without recalibration. |
Use Scenario: Conditioning analog output from MEMS pressure sensor in handheld sphygmomanometers powered by AAA batteries. IC Role / Device Role / Timing Role: Low-drift, low-power signal conditioner driving MAX11645 ADC; operates continuously during measurement cycle then shuts down between readings. Use Value: 750μA quiescent current and 1μA shutdown mode extend battery life to >1000 measurements per set; autotrim maintains accuracy across 0–40°C operating range. |
| Industrial Temperature Transmitter | Optical Smoke Detector Signal Chain |
|
Use Scenario: Amplifying RTD or thermistor bridge outputs in loop-powered 4–20mA field transmitters requiring extended temperature range and long-term stability. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with rail-to-rail input; interfaces to ΣΔ ADC with programmable gain. Use Value: 6μV/°C max VOS drift and 90dB CMRR ensure ±0.1°C measurement accuracy from –40°C to +125°C without external compensation. |
Use Scenario: Transimpedance amplification of weak photocurrent from IR photodiodes in battery-operated smoke alarms. IC Role / Device Role / Timing Role: Low-bias-current, low-noise TIA front-end; drives comparator or low-speed ADC for smoke concentration detection. Use Value: <12pA input bias current prevents signal loss in high-impedance photodiode circuits; EMI rejection suppresses false alarms from ambient RF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Lower GBW (350kHz), higher VOS drift (0.05μV/°C), no shutdown, same 6-pin SOT-23 package. | Lacks fast power-up autotrim and rail-to-rail output swing; unsuitable for SAR ADC drivers requiring wide bandwidth. | Select only for ultra-low-drift DC applications where speed and dynamic range are secondary. |
| ADA4522-1ARMZ | Zero-drift architecture, lower noise (5.8nV/√Hz), higher supply current (1.2mA), SOIC-8 package. | Better DC precision but larger footprint and higher power; not viable for space-constrained wearables. | Prefer for lab-grade instrumentation where board area and battery life are less constrained than offset stability. |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, the MAX40110AYT+ uniquely balances 15MHz bandwidth, sub-1ms calibrated startup, 6-pin μDFN size, and 1μA shutdown - making it the only option meeting simultaneous requirements for portable medical SAR ADC drivers, low-latency sensor wake-up, and ultra-compact layout.
Availability
MAX40110AYT+ is available at Aetrix Electronics and suitable for wearable biosensors, portable medical monitors, and industrial IoT sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX40110AYT+ 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 applications in industrial, medical, and communications markets.
The MAX40110AYT+ belongs to Maxim's precision op-amp family targeting low-power, high-accuracy signal conditioning in battery-operated and space-constrained systems - specifically engineered for sensor front-ends and ADC driver roles.
FAQ
What is the maximum operating temperature range for the MAX40110AYT+?
The MAX40110AYT+ is specified for continuous operation from –40°C to +125°C, with all electrical parameters guaranteed across this extended industrial temperature range. Its thermal design (θJA = 470°C/W on four-layer board) supports reliable performance in sealed enclosures or high-ambient environments typical of industrial transmitters and automotive cabin sensors.
Does the MAX40110AYT+ require external components for its internal charge pump?
No, the MAX40110AYT+ integrates a fully self-contained ultra-quiet charge pump that requires no external capacitors or resistors. The pump operates at high frequency (>10MHz) well above the amplifier's 15MHz GBW, ensuring it remains transparent to signal integrity while enabling rail-to-rail input operation without crossover distortion.
How does the power-on auto-calibration of the MAX40110AYT+ affect system timing?
The MAX40110AYT+ completes its full VOS autotrim sequence in under 1ms after VDD reaches valid level, during which IN+, IN−, and OUT enter high-impedance state. System firmware must delay signal acquisition until tON expires; this deterministic startup time simplifies timing control in microcontroller-based sensor nodes versus op-amps requiring indefinite settling.
Can the MAX40110AYT+ drive a 600Ω load effectively?
Yes - the MAX40110AYT+ delivers rail-to-rail output swing with VOL = 50mV and VOH = 40mV into 600Ω loads at VDD = 3.3V, maintaining >98% dynamic range. Its 7V/μs slew rate and 300pF capacitive load stability ensure clean step response into low-impedance ADC reference buffers or line-driver stages.
Is the shutdown mode of the MAX40110AYT+ compatible with 1.8V logic controllers?
Yes - the SHDN pin has logic thresholds independent of VDD: VIH = 1.3V (min) and VIL = 0.5V (max), allowing direct interface with 1.8V or 3.3V microcontrollers without level-shifting. Asserting SHDN places both inputs and output in high-impedance state while reducing supply current to <1μA, preserving calibrated offset settings for instant reactivation.
MAX40110AYT+ 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:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 30 µV
- 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)
MAX40110AYT+ FAQ
1.How can I place an order for MAX40110AYT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40110AYT+ 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 MAX40110AYT+ reliable?
The price and inventory of MAX40110AYT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40110AYT+ is usually 5 days.
3.What payment methods are accepted for MAX40110AYT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40110AYT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40110AYT+?
MAX40110AYT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40110AYT+ 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 MAX40110AYT+?
For technical support, including MAX40110AYT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40110AYT+ requirements.
6.How does Aetrix verify that MAX40110AYT+ is sourced from the original manufacturer or authorized distributors?
All MAX40110AYT+ 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 MAX40110AYT+ meets industry standards.
7.What is the process for return or replacement of MAX40110AYT+?
All MAX40110AYT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX40110AYT+, 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 MAX40110AYT+ part is unused and in its original packaging.
Return procedure for MAX40110AYT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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