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Analog Devices Inc./Maxim Integrated MAX4236AEUA-T
- Part No.:
- MAX4236AEUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4236AEUA-T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,415
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Product details
Overview
The MAX4236AEUA-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 strain gauge amplifiers.
For engineers reviewing the MAX4236AEUA-T datasheet, MAX4236AEUA-T pinout, MAX4236AEUA-T application, or MAX4236AEUA-T equivalent, key selection criteria include guaranteed A-grade offset performance in µMAX-8 package, ground-sensing input common-mode range extending to VEE −0.15V, rail-to-rail output swing into 1kΩ, and verified 200pF capacitive load stability without external compensation.
Technical Context
The MAX4236AEUA-T uses a CMOS input stage enabling 1pA input bias current and 1000MΩ input resistance, paired with BiCMOS output stage supporting rail-to-rail swing within 150mV of rails under 1kΩ load. Its DC precision is maintained across −40°C to +85°C via 2µV/°C max TCVOS and 110dB min open-loop gain (RL = 100kΩ).
It integrates a dedicated SHDN pin (Pin 5) that forces output into high-impedance state and reduces ICC to ≤2µA in shutdown, with 4µs recovery time. The device is unity-gain stable (AV = 1V/V), distinguishing it from the higher-bandwidth MAX4237 variant requiring AV ≥ 5V/V for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 20µV (max) at +25°C - enables sub-100µV system-level error in DC-coupled sensor interfaces without trimming |
| Offset Drift | 2µV/°C (max) - ensures <±160µV total offset shift over full −40°C to +85°C operating range |
| Input Bias Current | 1pA (typ) - supports >100GΩ source impedances in piezoelectric or electrochemical sensor nodes |
| Gain-Bandwidth Product | 1.7MHz - provides stable unity-gain operation with 100kHz small-signal bandwidth at AV = 1 |
| Rail-to-Rail Output Swing | Within 150mV of VCC/VEE into 1kΩ - maximizes dynamic range in +3V/+5V single-supply systems |
| Quiescent Current | 350µA (typ) normal mode; 0.1µA shutdown - extends battery life in portable instrumentation |
| Capacitive Load Drive | 200pF stable - eliminates need for isolation resistor when driving ADC input capacitance or long traces |
Pinout & Package
The MAX4236AEUA-T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with SO-8 but with finer pitch (0.65mm) and exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; high-impedance in shutdown mode |
| 2 (VEE) | Negative supply / GND reference | Input common-mode extends to VEE −0.15V; bypass with 0.1µF capacitor |
| 3 (IN+) | Noninverting input | High-impedance CMOS node; 1pA bias current enables direct connection to high-Z sensors |
| 4 (IN−) | Inverting input | Differential pair input; matched to IN+ for optimal CMRR (102dB min) |
| 5 (SHDN) | Shutdown control | Active-low logic input (VIH = 0.7×VCC); asserts high-Z output and cuts ICC to ≤2µA |
| 6 (VCC) | Positive supply | Operates from +2.4V to +5.5V; bypass with 0.1µF capacitor adjacent to pin |
| 7, 8 (N.C.) | No connection | Not internally bonded; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Grade-A guaranteed offset | 20µV max at +25°C and 2µV/°C max drift - tested 100% for µMAX/SO packages |
| Ground-sensing input | Common-mode range includes VEE −0.15V - enables true single-supply operation with inputs referenced to GND |
| Shutdown functionality | 0.1µA quiescent current and high-Z output - allows power gating in multi-channel sensor arrays |
| Low-noise precision | 14nV/√Hz input voltage noise density and 0.2µVp-p (0.1–10Hz) - preserves SNR in low-level transducer signals |
| Single-supply compatibility | +2.4V to +5.5V operation - supports Li-ion, 3.3V, and 5V systems without dual-rail generation |
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 or pressure sensors. IC Role / Device Role / Timing Role: Primary instrumentation amplifier stage providing gain, offset nulling, and rail-to-rail output drive into ADC. Use Value: 20µV max offset and 2µV/°C drift minimize temperature-induced zero-point drift; 1pA bias current prevents bridge imbalance errors. | Use Scenario: Charge-to-voltage conversion for piezoelectric accelerometers or acoustic emission sensors. IC Role / Device Role / Timing Role: Ultra-high-impedance transimpedance amplifier front-end with low leakage and minimal input capacitance loading. Use Value: 1pA input bias current enables use of minimal feedback capacitance, preserving low-frequency response and signal-to-noise ratio. |
| Thermocouple Amplification | Electrochemical Sensor Front-End |
Use Scenario: Cold-junction compensation and linearization of K-type or J-type thermocouples in industrial temperature monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low drift, rejecting thermocouple wire EMI and maintaining accuracy over wide ambient ranges. Use Value: 110dB min open-loop gain ensures stable closed-loop gain accuracy; rail-to-rail output fully utilizes ADC input range at +3V supply. | Use Scenario: Amperometric detection in glucose meters or gas sensors where nanoamp-level current must be converted to voltage. IC Role / Device Role / Timing Role: Low-input-current transimpedance amplifier with guarded input layout support and minimal input leakage. Use Value: 1pA typical input bias current prevents baseline shift in nA-range current measurements; 1000MΩ input resistance avoids signal attenuation. |
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 |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift chopper architecture; 10µV max offset, 0.1µV/°C drift; higher 350kHz GBW but 17µA ICC | Better drift spec but introduces 100nVpp chopper noise; unsuitable for low-noise analog front-ends sensitive to switching artifacts | Select OPA333AIDBVR only if ultra-low drift dominates over noise and power; avoid where chopper noise corrupts sensor signals |
| LTC2050CS5#TRMPBF | Zero-drift, 5µV max offset, 0.05µV/°C drift; 1.5MHz GBW, 1.2mA ICC, SOT23-5 package | Superior DC specs but 3× higher supply current and no shutdown function; requires external VREF for single-supply rail-to-rail output | Choose LTC2050CS5#TRMPBF for highest DC accuracy in non-battery applications; MAX4236AEUA-T preferred for low-power, integrated shutdown, and guaranteed µMAX-8 footprint |
Compared with OPA333AIDBVR and LTC2050CS5#TRMPBF, the MAX4236AEUA-T uniquely balances A-grade 20µV offset, 1pA bias current, 350µA quiescent current, and integrated shutdown in a space-constrained µMAX-8 package - making it optimal for battery-powered, high-impedance sensor systems demanding precision without chopper noise penalties.
Availability
The MAX4236AEUA-T is available at Aetrix Electronics and suitable for strain gauge signal conditioning, piezoelectric sensor interfaces, and thermocouple amplification requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4236AEUA-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 offset, near-zero input current, and rail-to-rail operation on single +3V/+5V supplies.
FAQ
What is the guaranteed input offset voltage specification for the MAX4236AEUA-T?
The MAX4236AEUA-T is grade-A tested and guaranteed to have a maximum input offset voltage of 20µV at +25°C, with a maximum temperature coefficient of 2µV/°C across −40°C to +85°C. This specification is 100% production tested for the µMAX-8 and SO-8 packages, ensuring consistent performance in precision DC-coupled circuits without calibration.
Does the MAX4236AEUA-T support true single-supply operation with inputs referenced to ground?
Yes, the MAX4236AEUA-T supports true single-supply operation: its input common-mode voltage range extends to VEE −0.15V, allowing the negative supply (VEE) to be connected to ground while accepting input signals down to −0.15V. This ground-sensing capability enables direct interfacing with grounded sensors like thermocouples or bridge transducers without level-shifting circuitry.
What is the capacitive load drive capability of the MAX4236AEUA-T, and why does it matter?
The MAX4236AEUA-T is stable driving up to 200pF capacitive loads without external compensation. This matters because many data acquisition systems place ADC input capacitance, PCB trace capacitance, or filtering networks directly at the op amp output. Guaranteed 200pF stability eliminates oscillation risk and removes the need for series isolation resistors - preserving signal integrity and simplifying layout in compact sensor modules.
How does the shutdown feature of the MAX4236AEUA-T behave electrically?
When the SHDN pin (Pin 5) is pulled low, the MAX4236AEUA-T reduces quiescent supply current to ≤2µA (typically 0.1µA) and places the output in a high-impedance state - effectively disconnecting it from the load. Recovery time to full operation is 4µs after SHDN returns high. This behavior enables precise power gating in multi-channel sensor arrays or intermittent measurement systems without affecting downstream circuitry.
Is the MAX4236AEUA-T pin-compatible with other packages in the MAX4236 family?
The MAX4236AEUA-T (µMAX-8) shares identical pinout and function with the MAX4236AESA (SO-8), including N.C. pins at positions 1 and 5. However, it is not pin-compatible with the 6-pin SOT23-6 variant (e.g., MAX4236EUT-T), which has different pin assignments and lacks N.C. terminals. Always verify package drawings before PCB layout - µMAX-8 and SO-8 footprints are mechanically interchangeable but require attention to thermal pad handling.
MAX4236AEUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-uMAX/uSOP
MAX4236AEUA-T FAQ
1.How can I place an order for MAX4236AEUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4236AEUA-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 MAX4236AEUA-T reliable?
The price and inventory of MAX4236AEUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4236AEUA-T is usually 5 days.
3.What payment methods are accepted for MAX4236AEUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4236AEUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4236AEUA-T?
MAX4236AEUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4236AEUA-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 MAX4236AEUA-T?
For technical support, including MAX4236AEUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4236AEUA-T requirements.
6.How does Aetrix verify that MAX4236AEUA-T is sourced from the original manufacturer or authorized distributors?
All MAX4236AEUA-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 MAX4236AEUA-T meets industry standards.
7.What is the process for return or replacement of MAX4236AEUA-T?
All MAX4236AEUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4236AEUA-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 MAX4236AEUA-T part is unused and in its original packaging.
Return procedure for MAX4236AEUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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