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Analog Devices Inc./Maxim Integrated MAX4236BESA+T
- Part No.:
- MAX4236BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4236BESA+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
The MAX4236BESA+T from Maxim Integrated is a grade-B, unity-gain stable, rail-to-rail output operational amplifier with ultra-low 50µV (max) input offset voltage at +25°C, 4.5µV/°C max offset drift, and 1pA input bias current - optimized for high-precision sensor signal conditioning in single-supply +3V/+5V systems such as strain gauge and electrochemical sensor front-ends.
For engineers reviewing the MAX4236BESA+T datasheet, MAX4236BESA+T pinout, MAX4236BESA+T application, or MAX4236BESA+T equivalent, key selection criteria include guaranteed offset performance over temperature, shutdown-mode quiescent current <0.1µA, rail-to-rail output swing into 1kΩ, and SO-8 package compatibility with standard PCB footprints for instrumentation-grade analog signal chains.
Technical Context
The MAX4236BESA+T employs a CMOS input stage enabling ground-sensing operation (input common-mode range extends to VEE − 0.15V) and delivers 110dB minimum open-loop gain with 1.7MHz gain-bandwidth product. Its architecture avoids chopper stabilization, eliminating switching noise while maintaining DC precision.
It integrates a dedicated SHDN pin that forces output into high-impedance state and reduces supply current to ≤2µA (typical 0.1µA), with 4µs recovery time. Output drives rail-to-rail into 1kΩ load (±150mV from rails), supporting wide dynamic range in low-voltage single-supply configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 50µV (max) at +25°C - ensures minimal DC error in precision amplification of µV-level sensor outputs |
| Offset Drift | 4.5µV/°C (max) - maintains accuracy across industrial −40°C to +85°C operating range |
| Input Bias Current | 1pA (typ) - enables high-impedance transducer interfaces (e.g., piezoelectric sensors) without loading error |
| Gain-Bandwidth Product | 1.7MHz - supports stable unity-gain operation for low-noise, wideband sensor buffering |
| Quiescent Current | 350µA (typ) in active mode; 0.1µA in shutdown - extends battery life in portable instrumentation |
| Rail-to-Rail Output | Swings within 150mV of VCC/VEE into 1kΩ - maximizes usable signal swing on +3V/+5V supplies |
| CMRR / PSRR | 80dB (min) CMRR, 95dB (min) PSRR - rejects supply and common-mode noise in noisy embedded environments |
Pinout & Package
The MAX4236BESA+T is housed in an 8-pin SO (Small Outline) package with industry-standard 150-mil width and 1.27mm pitch. Pin 1 is marked with a beveled corner or dot; thermal pad is not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Delivers rail-to-rail voltage swing; high-impedance during shutdown |
| 2 (VEE) | Negative Supply | Connect to GND in single-supply mode; bypass with 0.1µF capacitor |
| 3 (IN+) | Noninverting Input | High-impedance CMOS node; accepts signals down to VEE − 0.15V |
| 4 (IN−) | Inverting Input | Differential pair input; matched to IN+ for low input offset |
| 5 (N.C.) | No Connection | Not internally bonded; leave unconnected |
| 6 (SHDN) | Shutdown Control | Active-low logic input; pulls output high-Z and cuts ICC to <0.1µA when low |
| 7 (VCC) | Positive Supply | Accepts +2.4V to +5.5V; bypass with 0.1µF capacitor near pin |
| 8 (N.C.) | No Connection | Not internally bonded; leave unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low offset voltage grade B | 50µV max at +25°C - eliminates need for external trimming in cost-sensitive instrumentation |
| Ground-sensing input stage | Input common-mode range includes VEE − 0.15V - enables direct interface to grounded sensors without level-shifting |
| Shutdown mode with high-Z output | 0.1µA quiescent current and tri-stated output - allows dynamic power gating in multi-channel sensor arrays |
| Rail-to-rail output into 1kΩ | Output swings within 150mV of rails - preserves >94% of full-scale dynamic range on +3V supply |
| 1pA input bias current | Enables >10¹²Ω effective input impedance - critical for charge-integrating and high-resistance sensor interfaces |
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: Primary instrumentation amplifier stage with ultra-low input offset and drift to preserve microstrain resolution. Use Value: 50µV max offset ensures <0.1% full-scale error at 50mV bridge output; 4.5µV/°C drift limits thermal error to <0.05%/°C over operating range. | Use Scenario: Charge-to-voltage conversion for piezoelectric accelerometers and acoustic emission sensors. IC Role / Device Role / Timing Role: Low-bias-current, high-input-impedance transimpedance amplifier front-end. Use Value: 1pA input bias minimizes leakage-induced baseline drift; rail-to-rail output maximizes signal headroom for high-dynamic-range digitization. |
| Electrochemical Sensor Front-End | Battery-Powered Precision Instrumentation |
Use Scenario: Amplifying nanoamp-level currents from pH, dissolved oxygen, or glucose sensors using potentiostatic or amperometric methods. IC Role / Device Role / Timing Role: Transimpedance amplifier with guarded input and low input capacitance (7.5pF). Use Value: 1pA input bias prevents current measurement error; shutdown mode (<0.1µA) enables duty-cycled sensing to extend coin-cell lifetime. | Use Scenario: Portable multimeters, handheld gas analyzers, and field-deployable data loggers requiring long battery life and high DC accuracy. IC Role / Device Role / Timing Role: Core signal conditioner for sensor inputs and reference buffers in low-power analog subsystems. Use Value: 350µA active current + 0.1µA shutdown enables >1-year operation on CR2032; SO-8 package supports automated assembly and rework. |
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 | Chopper-stabilized; 10µV max offset, 0.05µV/°C drift; higher 17µA ICC | Better DC specs but introduces 100kHz switching noise; unsuitable for low-noise AC-coupled sensor paths | Select OPA333AIDR only when ultra-low drift dominates over noise floor requirements |
| AD8628ARZ | Zero-drift architecture; 10µV max offset, 0.025µV/°C drift; 1.2mA ICC; no shutdown pin | Superior precision but 3.4× higher supply current; lacks integrated shutdown control for power cycling | Choose AD8628ARZ for lab-grade DC stability where power budget permits and shutdown is managed externally |
Compared with OPA333AIDR and AD8628ARZ, the MAX4236BESA+T provides optimal balance of low offset (50µV), ultra-low bias current (1pA), integrated shutdown, and 350µA quiescent current - making it uniquely suited for battery-powered, high-impedance sensor interfaces where chopper noise must be avoided.
Availability
MAX4236BESA+T is available at Aetrix Electronics and suitable for strain gauge signal conditioning, piezoelectric sensor interfaces, and electrochemical sensor front-ends requiring stable component supply with guaranteed grade-B DC specifications over −40°C to +85°C.
Supply support for MAX4236BESA+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 precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX4236/MAX4237 product line targets high-accuracy, low-power sensor signal conditioning - specifically engineered for applications demanding ultra-low input bias current, rail-to-rail output, and guaranteed offset performance without chopper artifacts.
FAQ
What is the maximum input offset voltage specification for MAX4236BESA+T at +25°C?
The MAX4236BESA+T is a grade-B device with a maximum input offset voltage of 50µV at +25°C, as specified in the Electrical Characteristics table for SO-8 packages. This value is production-tested and guaranteed across the full −40°C to +85°C operating range, with worst-case drift limited to 4.5µV/°C.
Does MAX4236BESA+T support single-supply operation, and what is its input common-mode range?
Yes, MAX4236BESA+T supports single-supply operation from +2.4V to +5.5V. Its input common-mode voltage range extends from (VEE − 0.15V) to (VCC − 1.2V); with VEE = GND, this means the input accepts signals down to −0.15V - enabling true ground-sensing capability without external level-shifting circuitry.
What is the function of the SHDN pin on MAX4236BESA+T, and how does it affect output behavior?
The SHDN pin on MAX4236BESA+T is an active-low shutdown control. When pulled to VEE (GND), it reduces quiescent current to <0.1µA and places the amplifier output in a high-impedance (tri-state) condition. When pulled to VCC, normal operation resumes with 4µs typical recovery time - allowing precise power gating in multi-channel sensor systems.
Can MAX4236BESA+T drive capacitive loads, and what is its stability limit?
Yes, MAX4236BESA+T is stable driving up to 200pF capacitive loads without oscillation, as confirmed in the Electrical Characteristics table. This capability supports direct connection to ADC input capacitors or long PCB traces in compact sensor modules, eliminating the need for isolation resistors in many layout scenarios.
What package type and pin count does MAX4236BESA+T use, and are pins 5 and 8 internally connected?
MAX4236BESA+T uses an 8-pin SO (Small Outline) package with 150-mil width and 1.27mm lead pitch. Pins 5 and 8 are designated N.C. (No Connection) in the Pin Description table and are not internally bonded - they must remain unconnected in the PCB layout to avoid unintended coupling or mechanical stress.
MAX4236BESA+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:
- 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:
- 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
MAX4236BESA+T FAQ
1.How can I place an order for MAX4236BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4236BESA+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 MAX4236BESA+T reliable?
The price and inventory of MAX4236BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4236BESA+T is usually 5 days.
3.What payment methods are accepted for MAX4236BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4236BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4236BESA+T?
MAX4236BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4236BESA+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 MAX4236BESA+T?
For technical support, including MAX4236BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4236BESA+T requirements.
6.How does Aetrix verify that MAX4236BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4236BESA+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 MAX4236BESA+T meets industry standards.
7.What is the process for return or replacement of MAX4236BESA+T?
All MAX4236BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4236BESA+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 MAX4236BESA+T part is unused and in its original packaging.
Return procedure for MAX4236BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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