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Analog Devices Inc./Maxim Integrated MAX4236EUT+T
- Part No.:
- MAX4236EUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX4236EUT+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:6,199
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Product details
Overview
The MAX4236EUT+T from Maxim Integrated is a unity-gain stable, high-precision rail-to-rail output operational amplifier in SOT23-6 package, featuring 20µV max input offset voltage (Grade A), 1pA input bias current, and 1.7MHz gain-bandwidth product. It operates from +2.4V to +5.5V single supply, supports ground-sensing inputs, and includes shutdown functionality for ultra-low power operation - ideal for battery-powered instrumentation and electrochemical sensor front-ends.
For engineers reviewing the MAX4236EUT+T datasheet, MAX4236EUT+T pinout, MAX4236EUT+T application, or MAX4236EUT+T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in precision analog signal conditioning, and confirmed alternative options for design flexibility under low-voltage, low-power, high-accuracy constraints.
Technical Context
The MAX4236EUT+T employs a CMOS input stage enabling 1pA input bias current and rail-to-rail output swing within 150mV of rails into 1kΩ load. Its input common-mode range extends to VEE − 0.15V, supporting true ground-sensing operation with 102dB CMRR and 120dB PSRR at +25°C.
This device uses no chopper stabilization, achieving 20µV max offset and 2µV/°C max drift (Grade A) while maintaining 350µA quiescent current in active mode and reducing to 0.1µA in shutdown - with 4µs recovery time and high-impedance output state during disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.4V to +5.5V single supply - enables direct interface with 3V/5V microcontrollers and ADCs without level-shifting. |
| Input Offset Voltage (max) | 20µV at +25°C (Grade A) - ensures sub-LSB error in 16-bit+ systems with ≤1V full-scale input ranges. |
| Offset Drift (max) | 2µV/°C - limits total offset shift to <160µV over −40°C to +85°C operating range. |
| Input Bias Current | 1pA typical - preserves signal integrity in high-impedance sensor interfaces (e.g., piezoelectric, pH electrodes). |
| Gain-Bandwidth Product | 1.7MHz - supports stable unity-gain configurations for precision buffering and low-noise amplification up to ~100kHz. |
| Quiescent Current | 350µA active / 0.1µA shutdown - extends battery life in portable instrumentation with on-demand activation. |
| Rail-to-Rail Output Swing | Within 150mV of rails into 1kΩ - maximizes dynamic range when driving SAR ADCs or low-voltage reference buffers. |
Pinout & Package
SOT23-6 package: ultra-compact surface-mount outline (2.9mm × 1.6mm × 1.1mm), thermally enhanced for low-power precision applications. Requires 0.1µF bypass capacitor on VCC and VEE pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | High-impedance in shutdown mode; drives loads down to 1kΩ with rail-to-rail swing. |
| 2 (VEE) | Negative Supply / Ground Reference | Accepts 0V (single-supply) or negative rail; input common-mode extends to VEE − 0.15V. |
| 3 (IN+) | Noninverting Input | CMOS input with 1pA bias current; requires guarding in >100MΩ impedance circuits. |
| 4 (IN−) | Inverting Input | Differential pair node; matched to IN+ for optimal CMRR and offset performance. |
| 5 (SHDN) | Shutdown Control Input | Active-low logic: VIL ≤ 0.3×VCC, VIH ≥ 0.7×VCC; 1µs delay, 4µs recovery to full operation. |
| 6 (VCC) | Positive Supply Input | Supplies internal bias; must be bypassed locally to minimize noise coupling and supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| No-chopper architecture | Eliminates switching noise and intermodulation distortion critical for DC-coupled sensor signal chains. |
| Ground-sensing input | Common-mode range includes VEE − 0.15V - enables direct connection to 0V-referenced transducers (e.g., strain gauges, thermocouples). |
| Shutdown mode | Reduces ICC to 0.1µA and places OUT in high-Z state - essential for multiplexed sensor arrays and energy-harvesting systems. |
| Capacitive load drive | Stable with up to 200pF load - supports direct connection to ADC input capacitors and long PCB traces without external isolation. |
| Low-frequency noise | 0.2µVP-P (0.1Hz–10Hz) - minimizes baseline drift in electrochemical and medical biosensor amplifiers. |
Applications
| Strain Gauge Signal Conditioning | Piezoelectric Sensor Interface |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil or semiconductor strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with ultra-low input current to prevent bridge imbalance errors. Use Value: 1pA input bias current avoids loading high-resistance bridge arms; 20µV offset ensures ≤0.02% full-scale error at 100mV output. |
Use Scenario: Charge-to-voltage conversion for piezoelectric accelerometers and acoustic emission sensors. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance transimpedance amplifier with minimal capacitance loading on sensor element. Use Value: 0.2µVP-P low-frequency noise preserves weak transient signals; rail-to-rail output maximizes ADC utilization in 3V systems. |
| Thermocouple Cold-Junction Compensation | Battery-Powered Electrochemical Sensors |
|
Use Scenario: Amplifying µV-level thermocouple outputs while rejecting common-mode noise from industrial environments. IC Role / Device Role / Timing Role: High-CMRR (102dB), low-drift op amp in cold-junction compensation circuitry with RTD or diode temperature sensing. Use Value: 2µV/°C max TCVOS prevents thermal drift-induced measurement errors; ground-sensing input simplifies reference junction layout. |
Use Scenario: Front-end amplification for amperometric gas sensors, glucose meters, and pH electrodes operating from coin-cell batteries. IC Role / Device Role / Timing Role: Ultra-low-power, high-accuracy transducer interface with shutdown control synchronized to sampling intervals. Use Value: 350µA active / 0.1µA shutdown current extends 10-year battery life in wireless sensor nodes; 1pA bias avoids electrode polarization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Chopper-stabilized; 10µV max offset, 0.1µV/°C drift, but introduces 100nVP-P switching noise. | Better DC accuracy, but unsuitable for low-noise AC-coupled or wideband sensor signals due to chopping artifacts. | Select OPA333AIDBVR only when ultra-low drift dominates over noise floor requirements. |
| LTC2050CS5#TRMPBF | Zero-drift architecture; 5µV max offset, 0.015µV/°C drift, 1.5MHz GBWP, 550µA ICC. | Superior long-term stability for metrology-grade integrators, but higher supply current reduces battery runtime. | Choose LTC2050CS5#TRMPBF when sub-ppm drift over temperature/time is mandatory and power budget allows. |
Compared with OPA333AIDBVR and LTC2050CS5#TRMPBF, the MAX4236EUT+T provides optimal balance of ultra-low input current (1pA), chopper-free operation, rail-to-rail output, and 350µA quiescent current - making it uniquely suited for battery-powered, high-impedance, DC-precision sensor interfaces where noise, layout sensitivity, and power coexist as first-order constraints.
Availability
MAX4236EUT+T is available at Aetrix Electronics and suitable for strain gauge signal conditioning, piezoelectric sensor interfaces, and battery-powered electrochemical sensor designs requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for MAX4236EUT+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) is a leader in precision analog, mixed-signal, and power management ICs, serving industrial, medical, communications, and consumer markets since 1983.
The MAX4236/MAX4237 family was designed specifically for high-accuracy, low-power, single-supply sensor signal conditioning - targeting applications demanding chopper-free performance, ground-sensing capability, and rail-to-rail output in space-constrained layouts.
FAQ
What is the maximum input offset voltage specification for MAX4236EUT+T?
The MAX4236EUT+T is a Grade A device with a guaranteed maximum input offset voltage of 20µV at +25°C, tested across the full −40°C to +85°C operating range. This value is specified in the Electrical Characteristics table for SOT23-6 packages and reflects production-tested limits, not typical or design-only values. The MAX4236EUT+T achieves this performance without chopper stabilization.
Does MAX4236EUT+T support single-supply operation?
Yes, the MAX4236EUT+T is fully specified for single-supply operation from +2.4V to +5.5V. Its input common-mode range extends to VEE − 0.15V (i.e., below ground in single-supply configurations), and its rail-to-rail output swings within 150mV of both supply rails into a 1kΩ load - enabling true ground-referenced signal acquisition and full dynamic range utilization in 3V or 5V systems.
What is the shutdown behavior of MAX4236EUT+T?
When the SHDN pin of the MAX4236EUT+T is pulled low (≤0.3×VCC), quiescent current drops to ≤0.1µA and the output enters a high-impedance state. Recovery to full operation occurs within 4µs after SHDN returns high (≥0.7×VCC). This behavior is characterized across temperature and supply voltage, and the output leakage in shutdown is ±0.01µA - critical for multiplexed sensor architectures and energy harvesting systems.
Can MAX4236EUT+T drive capacitive loads?
Yes, the MAX4236EUT+T is stable driving capacitive loads up to 200pF, as confirmed in the Electrical Characteristics table under "Capacitive Load Stability". This capability allows direct interfacing with ADC input capacitors, long PCB traces, and filtering networks without requiring external isolation resistors - preserving signal integrity and simplifying layout in precision data acquisition systems.
Is MAX4236EUT+T pin-compatible with other variants in the MAX4236/MAX4237 family?
The MAX4236EUT+T uses the SOT23-6 pinout shared by all SOT23-packaged variants (e.g., MAX4237EUT+T), but functional differences exist: MAX4236EUT+T is unity-gain stable (GBWP = 1.7MHz), while MAX4237EUT+T requires minimum closed-loop gain of 5V/V (GBWP = 7.5MHz). Pin compatibility does not imply functional interchangeability - gain configuration and stability margins must be re-verified per design.
MAX4236EUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 1.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 350µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.4 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX4236EUT+T FAQ
1.How can I place an order for MAX4236EUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4236EUT+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 MAX4236EUT+T reliable?
The price and inventory of MAX4236EUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4236EUT+T is usually 5 days.
3.What payment methods are accepted for MAX4236EUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4236EUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4236EUT+T?
MAX4236EUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4236EUT+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 MAX4236EUT+T?
For technical support, including MAX4236EUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4236EUT+T requirements.
6.How does Aetrix verify that MAX4236EUT+T is sourced from the original manufacturer or authorized distributors?
All MAX4236EUT+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 MAX4236EUT+T meets industry standards.
7.What is the process for return or replacement of MAX4236EUT+T?
All MAX4236EUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4236EUT+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 MAX4236EUT+T part is unused and in its original packaging.
Return procedure for MAX4236EUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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