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Analog Devices Inc./Maxim Integrated MAX4236AESA-T
- Part No.:
- MAX4236AESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4236AESA-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
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Product details
Overview
The MAX4236AESA-T from Maxim Integrated is a grade-A, unity-gain-stable, rail-to-rail output operational amplifier with ultra-low 20µV (max) input offset voltage at +25°C, 2µV/°C max offset drift, and 1pA input bias current. It operates from +2.4V to +5.5V single supply, delivers 1.7MHz gain-bandwidth, and features shutdown mode reducing quiescent current to 0.1µA - ideal for battery-powered precision sensor front-ends such as thermocouple or electrochemical amplifiers.
For engineers reviewing the MAX4236AESA-T datasheet, MAX4236AESA-T pinout, MAX4236AESA-T application, or MAX4236AESA-T equivalent, this page provides verified specifications, SO-8 package terminal mapping, real-world use cases in instrumentation-grade analog signal conditioning, and validated alternative options for high-accuracy DC-coupled amplification.
Technical Context
The MAX4236AESA-T uses a CMOS input stage enabling ground-sensing operation (input common-mode range extends to VEE − 0.15V) and rail-to-rail output swing within 150mV of rails into 1kΩ. Its 120dB typical open-loop gain and 95dB minimum CMRR over −40°C to +85°C support stable, high-precision DC amplification without chopper artifacts.
It integrates a dedicated SHDN pin that forces output into high-impedance state and reduces ICC to ≤0.1µA when pulled low. Recovery time is 4µs, and it handles up to 200pF capacitive loads while maintaining stability - critical for driving ADC input filters or long traces in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage (max) | 20µV at +25°C (Grade A, SO-8) - enables sub-0.01% error in 1V full-scale measurement systems |
| Offset Drift (max) | 2µV/°C - ensures <±0.2mV total drift across −40°C to +85°C operating range |
| Input Bias Current | 1pA - preserves signal integrity in high-impedance sensor interfaces (e.g., piezoelectric charge amps) |
| Gain-Bandwidth Product | 1.7MHz - supports stable unity-gain configurations for low-noise, wide-dynamic-range signal buffering |
| Supply Range | +2.4V to +5.5V single supply - compatible with Li-ion, 3.3V, and 5V logic domains without level-shifting |
| Quiescent Current | 350µA normal mode / 0.1µA shutdown - extends battery life in intermittent-sampling instrumentation |
| Output Swing | Rail-to-rail into 1kΩ load (≤150mV from rails) - maximizes usable dynamic range in low-voltage systems |
Pinout & Package
MAX4236AESA-T is housed in an 8-pin SO (Small Outline) package with standard JEDEC MS-012AC footprint (5.0mm × 4.0mm, 1.27mm pitch). Pin 1 is marked by a beveled corner or dot; thermal pad is not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Low-impedance rail-to-rail voltage source; drives ADC inputs, filters, or downstream stages directly |
| 2 (VEE) | Negative Supply / Ground Reference | Connect to GND in single-supply operation; bypass with 0.1µF capacitor to minimize noise coupling |
| 3 (IN+) | Noninverting Input | High-impedance (≥1000MΩ), low-bias node for reference or sensor signal routing |
| 4 (IN−) | Inverting Input | High-impedance feedback node; matched to IN+ for optimal CMRR and offset rejection |
| 5 (N.C.) | No Connection | Not internally bonded - leave unconnected; no electrical function or thermal role |
| 6 (SHDN) | Shutdown Control Input | CMOS-compatible logic input; pull low (≤0.3×VCC) to enter 0.1µA shutdown with high-Z output |
| 7 (N.C.) | No Connection | Not internally bonded - leave unconnected; no electrical function or thermal role |
| 8 (VCC) | Positive Supply Input | Accepts +2.4V to +5.5V; requires local 0.1µF ceramic bypass to GND for PSRR optimization |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low offset voltage (20µV max) | Enables direct interfacing with µV-level transducer outputs (e.g., thermocouples) without trimming |
| Ground-sensing input (VEE − 0.15V) | Allows accurate amplification of signals referenced below ground - essential for industrial 4–20mA loop receivers |
| 1pA input bias current | Minimizes voltage error across high-value feedback resistors (>10MΩ), preserving gain accuracy in integrators |
| 200pF capacitive load drive | Permits direct connection to ADC input RC filters without external isolation or compensation |
| 4µs shutdown recovery | Supports rapid power cycling in duty-cycled sensor nodes while maintaining timing predictability |
Applications
| Strain Gauge Signal Conditioning | Piezoelectric Sensor Amplification |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil or semiconductor strain gauges in load cells or pressure sensors. IC Role / Device Role / Timing Role: Precision DC-coupled difference amplifier with ultra-low input current to prevent bridge imbalance errors. Use Value: 20µV offset ensures ≤0.2% full-scale error at 10mV bridge output; rail-to-rail swing maximizes ADC utilization. |
Use Scenario: Converting high-impedance charge output from piezoelectric accelerometers or acoustic sensors into low-impedance voltage. IC Role / Device Role / Timing Role: Charge-to-voltage converter (I/V) with femtoampere input leakage to preserve signal integrity over long cable runs. Use Value: 1pA bias current prevents charge decay in >1nF feedback capacitors, enabling stable low-frequency response down to 0.1Hz. |
| Electrochemical Sensor Interface | Battery-Powered Thermocouple Amplifier |
|
Use Scenario: Amplifying nanoamp-level currents from amperometric gas sensors or pH electrodes using transimpedance configuration. IC Role / Device Role / Timing Role: Low-noise, low-drift transimpedance amplifier with high common-mode rejection for noisy industrial environments. Use Value: 2µV/°C drift minimizes calibration drift over temperature; 102dB CMRR rejects EMI from nearby switching regulators. |
Use Scenario: Cold-junction-compensated thermocouple amplification in handheld test equipment powered by two AA batteries. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with shutdown control synchronized to measurement cycles. Use Value: 350µA quiescent current extends battery life to >1 year in 1-sample-per-second operation; 0.1µA shutdown cuts standby drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDR | Zero-drift architecture (chopper), 10µV max offset, 0.1µV/°C drift, 17MHz GBW, but higher 17µA ICC | Better drift performance, but unsuitable for low-noise AC-coupled piezo apps due to 1/f noise and switching artifacts | Select when ultra-low drift dominates over noise and power; avoid where chopper ripple affects signal fidelity |
| LTC2050CS8#PBF | Zero-drift, 5µV max offset, 0.05µV/°C drift, 3MHz GBW, 1.2mA ICC, SO-8 package | Superior DC precision but 3.4× higher supply current limits battery life in portable designs | Choose for lab-grade instrumentation requiring sub-µV stability; not recommended for energy-constrained edge nodes |
Compared with OPA333AIDR and LTC2050CS8#PBF, the MAX4236AESA-T offers the lowest power consumption (350µA vs. ≥17µA) and absence of chopper-induced noise - making it uniquely suited for battery-powered, high-DC-accuracy sensor front-ends where clean analog signal integrity is non-negotiable.
Availability
MAX4236AESA-T is available at Aetrix Electronics and suitable for strain gauge signal conditioning, piezoelectric sensor amplification, and battery-powered thermocouple measurement systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4236AESA-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 fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for industrial, medical, and communications applications.
The MAX4236/MAX4237 product line was designed specifically for ultra-precision, low-power, single-supply sensor signal conditioning - targeting applications where chopper amplifiers introduce unacceptable noise or spectral artifacts.
FAQ
What is the maximum guaranteed input offset voltage for MAX4236AESA-T at +25°C?
The MAX4236AESA-T is Grade A, SO-8 packaged, and guaranteed to have a maximum input offset voltage of 20µV at +25°C per Maxim's datasheet (Rev 0, 8/01). This specification is 100% production tested for A-grade SO and µMAX packages, ensuring compliance across all units shipped as MAX4236AESA-T.
Does MAX4236AESA-T support true rail-to-rail input common-mode range?
No - the MAX4236AESA-T supports rail-to-rail *output* swing but has a ground-sensing *input* common-mode range extending from (VEE − 0.15V) to (VCC − 1.2V). This allows inputs below ground in single-supply operation but does not include the positive rail. The input stage is not rail-to-rail on the high side.
Can MAX4236AESA-T drive a 1000pF capacitive load stably?
No - the MAX4236AESA-T is specified for stable operation with up to 200pF capacitive load (no sustained oscillations). Driving 1000pF would require external isolation or compensation. For heavier loads, consider adding a series resistor (e.g., 50Ω) between OUT and the capacitor to maintain phase margin.
What is the shutdown current of MAX4236AESA-T, and how is the output configured during shutdown?
The MAX4236AESA-T draws ≤0.1µA quiescent current in shutdown mode when SHDN is pulled to VEE (GND). During shutdown, the output is placed in a high-impedance (Hi-Z) state - electrically disconnected from internal circuitry - preventing loading of downstream stages or feedback networks.
Is MAX4236AESA-T pin-compatible with MAX4236AEUA or MAX4236EUT-T?
No - MAX4236AESA-T uses an 8-pin SO package, while MAX4236AEUA is 8-pin µMAX and MAX4236EUT-T is 6-pin SOT23. Pin counts, layouts, and terminal assignments differ significantly. The SO-8 pinout (e.g., N.C. on pins 1 and 5) does not map to either alternative package, so PCB redesign is required for substitution.
MAX4236AESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 30 mA
- 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:
- 8-SOIC
MAX4236AESA-T FAQ
1.How can I place an order for MAX4236AESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4236AESA-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 MAX4236AESA-T reliable?
The price and inventory of MAX4236AESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4236AESA-T is usually 5 days.
3.What payment methods are accepted for MAX4236AESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4236AESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4236AESA-T?
MAX4236AESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4236AESA-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 MAX4236AESA-T?
For technical support, including MAX4236AESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4236AESA-T requirements.
6.How does Aetrix verify that MAX4236AESA-T is sourced from the original manufacturer or authorized distributors?
All MAX4236AESA-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 MAX4236AESA-T meets industry standards.
7.What is the process for return or replacement of MAX4236AESA-T?
All MAX4236AESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4236AESA-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 MAX4236AESA-T part is unused and in its original packaging.
Return procedure for MAX4236AESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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