Analog Devices Inc./Maxim Integrated MAX406AESA+T
- Part No.:
- MAX406AESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX406AESA+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:3,217
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Product details
Overview
MAX406AESA+T from Maxim Integrated is a single, rail-to-rail input/output, micropower operational amplifier optimized for single-supply operation at +2.7V to +16V. It delivers 1.2µA max supply current, 150kHz gain-bandwidth product, and 1mV max input offset voltage over -40°C to +85°C, enabling precision sensing in battery-powered industrial monitoring systems.
For engineers reviewing the MAX406AESA+T datasheet, MAX406AESA+T pinout, MAX406AESA+T application, or MAX406AESA+T equivalent, key selection criteria include ultra-low quiescent current, rail-to-rail I/O swing, guaranteed performance across extended temperature, and SO-8 package compatibility with automated SMT assembly.
Technical Context
The MAX406AESA+T uses a CMOS input stage to achieve picoampere-level input bias current (1pA typ) and high input impedance (>1012Ω), supporting high-impedance sensor interfacing. Its internal compensation ensures unity-gain stability without external components.
Designed for single-supply use, it features rail-to-rail input common-mode range (including VEE) and rail-to-rail output swing (within 10mV of rails at 10kΩ load), enabling full dynamic range utilization in low-voltage data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +16V - supports direct connection to Li-ion batteries and industrial 12V rails without regulation |
| Quiescent Current | 1.2µA max - enables multi-year operation on coin-cell batteries in wireless sensor nodes |
| Gain-Bandwidth Product | 150kHz - sufficient for DC-coupled thermistor, RTD, and strain gauge signal conditioning |
| Input Offset Voltage | 1mV max - reduces zero-error in precision 12-bit ADC front-ends without trimming |
| Input Bias Current | 1pA typ - preserves signal integrity when amplifying high-impedance pH or photodiode sensors |
| Output Swing | Rail-to-rail - maximizes usable ADC input range in 3.3V microcontroller systems |
| Operating Temperature | -40°C to +85°C - qualified for industrial control cabinets and outdoor metering enclosures |
Pinout & Package
MAX406AESA+T is housed in an 8-pin SO (Small Outline) package per package code S8-2, with standard 1.27mm pitch and gull-wing leads compatible with IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified analog output node; drives loads down to 10kΩ while maintaining rail-to-rail swing |
| 2 | Inverting Input (–) | Differential input terminal; accepts signals referenced to ground or virtual ground in single-supply configurations |
| 3 | Noninverting Input (+) | Differential input terminal; high-impedance CMOS input enables direct connection to passive sensors |
| 4 | VEE (GND) | Ground reference for single-supply operation; serves as return path for input common-mode and output load current |
| 5 | NC | No connect - internally unconnected; must remain floating or grounded per layout best practices |
| 6 | NC | No connect - internally unconnected; must remain floating or grounded per layout best practices |
| 7 | VCC | Positive supply rail; accepts +2.7V to +16V; bypass capacitor required at pin for stability |
| 8 | NC | No connect - internally unconnected; must remain floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal capture from 0V to VCC in single-supply systems without level-shifting circuitry |
| 1.2µA max supply current | Extends battery life in portable gas detectors and handheld multimeters beyond 5 years on CR2032 |
| 1mV max input offset voltage | Eliminates need for manual calibration in factory-set pressure transducer modules |
| 1pA typical input bias current | Prevents loading error in high-Z electrochemical sensor interfaces such as CO or NO2 detection cells |
| -40°C to +85°C operation | Guarantees parametric performance in unheated outdoor smart utility meters and solar inverter monitoring circuits |
Applications
| Portable Gas Detection | Industrial Temperature Monitoring |
|---|---|
Use Scenario: Amplifying low-current output from electrochemical gas sensors in battery-powered handheld analyzers. IC Role / Device Role / Timing Role: Precision transimpedance amplifier converting nanoamp-level sensor current to measurable voltage. Use Value: 1pA input bias current prevents signal attenuation; 1.2µA quiescent current extends runtime to >3 years on single AA cell. | Use Scenario: Conditioning output from Pt100 RTD bridges in DIN-rail mounted process controllers. IC Role / Device Role / Timing Role: Low-drift, rail-to-rail instrumentation amplifier front-end stage. Use Value: 1mV max offset minimizes cold-junction compensation error; -40°C to +85°C rating ensures accuracy across ambient extremes. |
| Smart Utility Metering | Low-Power Data Loggers |
Use Scenario: Signal conditioning for shunt-based current measurement in residential electricity meters. IC Role / Device Role / Timing Role: High-input-impedance differential amplifier for bidirectional current sensing. Use Value: Rail-to-rail I/O allows full 0–3.3V ADC range utilization; 150kHz GBW supports 50/60Hz harmonic rejection. | Use Scenario: Amplifying thermistor voltage dividers in remote environmental monitoring nodes. IC Role / Device Role / Timing Role: Micropower buffer and gain stage preceding SAR ADC sampling. Use Value: 1.2µA supply current enables 10-year deployment on primary lithium thionyl chloride cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321IDBVR | Higher 65µA supply current; 1MHz GBW; only rail-to-rail output (not input) | Better suited for higher-speed sensor interfaces where power budget allows >50× increase | Select when bandwidth >100kHz is required and battery life is secondary to response time |
| TSV611ILT | Lower 120nA supply current but 13kHz GBW; rail-to-rail I/O; 2.5mV offset max | Ideal for ultra-low-power, sub-10kHz applications like slow-moving thermocouple amplification | Select when quiescent current is critical and signal bandwidth is <20kHz |
Compared with LMV321IDBVR and TSV611ILT, the MAX406AESA+T uniquely balances sub-2µA power, 150kHz bandwidth, rail-to-rail I/O, and 1mV offset-making it optimal for precision, battery-constrained industrial sensing where all four parameters are simultaneously constrained.
Availability
MAX406AESA+T is available at Aetrix Electronics and suitable for portable gas detection, industrial temperature monitoring, smart utility metering, and low-power data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX406AESA+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 MAX406 series belongs to Maxim's micropower operational amplifier product line, engineered specifically for single-supply, battery-operated instrumentation where ultra-low current and rail-to-rail performance are mandatory.
FAQ
What is the maximum supply voltage for MAX406AESA+T?
The MAX406AESA+T operates with a maximum supply voltage of +16V. This allows direct interface with common industrial 12V rails and legacy battery systems without external regulators. Exceeding +16V risks permanent damage. The device is fully specified from +2.7V to +16V, and all parameters-including input offset and GBW-are guaranteed across this full range for the MAX406AESA+T.
Does MAX406AESA+T support rail-to-rail input?
Yes, the MAX406AESA+T supports true rail-to-rail input operation, meaning its input common-mode voltage range extends from VEE (GND) to VCC. This enables accurate amplification of signals near ground or near the positive rail in single-supply systems. This feature is explicitly characterized and guaranteed in the MAX406AESA+T datasheet across the full -40°C to +85°C temperature range.
What is the input offset voltage specification for MAX406AESA+T?
The MAX406AESA+T has a maximum input offset voltage of 1mV at +25°C, with no additional drift specification beyond the guaranteed operating temperature range. This value is tested and binned during production, ensuring consistent low-error performance in precision DC-coupled applications such as RTD and thermistor signal chains where calibration overhead must be minimized.
Is MAX406AESA+T pin-compatible with other devices in the MAX406 family?
Yes, the MAX406AESA+T shares identical pinout and footprint with all 8-pin SO variants in the MAX406 family, including MAX406BCSA, MAX406C/D (SO), and MAX406ESA. All share the same S8-2 package outline, allowing drop-in replacement within the same temperature grade and performance grade (A-grade vs B-grade) without PCB modification.
What is the typical input bias current of MAX406AESA+T?
The typical input bias current of MAX406AESA+T is 1pA at +25°C, with a maximum of 10pA over the full -40°C to +85°C range. This ultra-low value results from its CMOS input stage and makes the MAX406AESA+T especially suitable for high-impedance sensor interfaces such as photodiodes, pH electrodes, and piezoelectric elements where leakage current would otherwise dominate signal accuracy.
MAX406AESA+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:
- 0.005V/µs
- Gain Bandwidth Product:
- 8 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 1µA
- Current - Output / Channel:
- 600 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -45°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX406AESA+T FAQ
1.How can I place an order for MAX406AESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX406AESA+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 MAX406AESA+T reliable?
The price and inventory of MAX406AESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX406AESA+T is usually 5 days.
3.What payment methods are accepted for MAX406AESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX406AESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX406AESA+T?
MAX406AESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX406AESA+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 MAX406AESA+T?
For technical support, including MAX406AESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX406AESA+T requirements.
6.How does Aetrix verify that MAX406AESA+T is sourced from the original manufacturer or authorized distributors?
All MAX406AESA+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 MAX406AESA+T meets industry standards.
7.What is the process for return or replacement of MAX406AESA+T?
All MAX406AESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX406AESA+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 MAX406AESA+T part is unused and in its original packaging.
Return procedure for MAX406AESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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