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Analog Devices Inc./Maxim Integrated MAX406BEPA
- Part No.:
- MAX406BEPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX406BEPA.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,049
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Product details
Overview
MAX406BEPA from Maxim Integrated is a single, precision rail-to-rail input/output operational amplifier optimized for ultra-low-power, single-supply operation. It delivers 1.2µA maximum supply current, 150kHz gain-bandwidth product, and ±1mV input offset voltage across -40°C to +85°C, enabling battery-powered sensor signal conditioning in portable instrumentation.
For engineers reviewing the MAX406BEPA datasheet, MAX406BEPA pinout, MAX406BEPA application, or MAX406BEPA equivalent, key selection criteria include its guaranteed low quiescent current at temperature extremes, rail-to-rail I/O swing with single 2.7V–16V supply, and DIP-8 package compatibility with legacy through-hole prototyping and industrial control interfaces.
Technical Context
The MAX406BEPA implements a CMOS input stage with rail-to-rail input common-mode range extending beyond both supply rails, and rail-to-rail output swing within 10mV of each rail under 10kΩ load. Its internal compensation ensures unity-gain stability without external components.
Designed for single-supply systems, it operates from 2.7V to 16V with no dual-supply requirement, and features ESD protection exceeding ±2kV (HBM), supporting direct interface with transducers in unregulated or battery-derived power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 16V - supports direct connection to single Li-ion, dual AA, or industrial 12V rails without regulation |
| Quiescent Current | 1.2µA max - enables multi-year operation on coin-cell batteries in always-on sensor nodes |
| Gain-Bandwidth Product | 150kHz - sufficient for DC-coupled thermistor, RTD, or bridge amplifier stages up to ~100Hz bandwidth |
| Input Offset Voltage | ±1mV max - reduces zero-error drift in precision 12-bit ADC front-ends without trimming |
| Input Bias Current | 1pA max - preserves high-impedance source integrity in pH electrode or photodiode amplifiers |
| Output Swing | Rail-to-rail - delivers full dynamic range into 10kΩ loads, maximizing ADC utilization in 3.3V/5V systems |
| Operating Temperature | -40°C to +85°C - qualified for industrial control cabinets and outdoor environmental sensors |
Pinout & Package
MAX406BEPA is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard 0.1-inch pin pitch, compatible with through-hole PCB assembly and breadboard prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output | Amplified signal output; capable of sourcing/sinking ±20mA into resistive loads |
| 2 | Inverting Input (–) | Differential input node; high-impedance CMOS input with 1pA bias current |
| 3 | Noninverting Input (+) | Differential input node; rail-to-rail common-mode range from V– – 0.1V to V+ + 0.1V |
| 4 | V– | Negative supply terminal; tied to ground in single-supply configurations |
| 5 | NC | No connect - internally unused; must remain unconnected per datasheet |
| 6 | NC | No connect - internally unused; must remain unconnected per datasheet |
| 7 | V+ | Positive supply terminal; accepts 2.7V–16V DC with no reverse-polarity protection |
| 8 | NC | No connect - internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal capture from grounded sensors and direct interfacing to 3.3V/5V SAR ADCs without level-shifting |
| Ultra-low 1.2µA supply current | Extends battery life in wireless sensor transmitters where average current budget is sub-5µA |
| Single-supply operation (2.7V–16V) | Eliminates need for charge pumps or dual supplies in portable medical devices and handheld test equipment |
| ±1mV max input offset voltage | Reduces calibration overhead in factory-trimmed pressure or flow meter analog front-ends |
| 1pA max input bias current | Maintains accuracy in high-Z pH probe and piezoelectric sensor amplification without guard traces |
Applications
| Portable Gas Sensors | Industrial RTD Signal Conditioning |
|---|---|
Use Scenario: Electrochemical gas sensor output (nA-level current) amplified and filtered before 12-bit ADC digitization in battery-powered air quality monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output driving ADC reference buffer. Use Value: 1pA input bias prevents sensor current loss; 1.2µA quiescent current extends 2-year coin-cell life. | Use Scenario: 3-wire RTD bridge excitation and differential amplification in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end stage with matched gain-setting resistors. Use Value: ±1mV offset ensures ≤0.1°C error over -40°C to +85°C ambient without software correction. |
| Medical Pulse Oximeter Analog Front-End | Low-Power Data Logger Sensor Interface |
Use Scenario: Amplifying weak photodiode signals from red/IR LEDs in wearable pulse oximeters operating from single CR2032 cell. IC Role / Device Role / Timing Role: Low-noise, low-drift transimpedance amplifier with shutdown control. Use Value: Rail-to-rail output maximizes dynamic range into 3.3V ADC; 1.2µA current enables >500hr continuous operation. | Use Scenario: Battery-operated soil moisture and temperature logger sampling every 10 minutes using capacitive and thermistor sensors. IC Role / Device Role / Timing Role: Single-supply signal conditioner powering sensor excitation and amplifying conditioned outputs. Use Value: 2.7V minimum supply allows direct use of partially discharged alkaline cells; NC pins simplify layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX406AEPA | Same pinout and electrical specs, but rated for 0°C to +70°C industrial temperature range | Limited to commercial-grade environments; not qualified for extended-temperature industrial enclosures | Select MAX406AEPA only if ambient operating temperature remains within 0°C–70°C and cost sensitivity outweighs thermal margin |
| LMV321IDBVR | Higher 65µA supply current, 1MHz GBW, SOT-23-5 package; no DIP-8 option | Requires PCB redesign for surface-mount assembly; unsuitable for through-hole prototyping or legacy DIP sockets | Choose LMV321IDBVR only when higher bandwidth is required and board space constraints mandate SMT packaging |
Compared with MAX406AEPA, MAX406BEPA provides guaranteed performance over -40°C to +85°C without trade-offs in power or precision; versus LMV321IDBVR, it offers 54× lower quiescent current and DIP-8 compatibility but trades bandwidth for ultra-low-power operation.
Availability
MAX406BEPA is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor interfaces, and low-power data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX406BEPA 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 and mixed-signal ICs for industrial, medical, and communications applications with emphasis on power efficiency and reliability.
The MAX406 family targets ultra-low-power, single-supply signal conditioning in battery-constrained and thermally demanding environments, prioritizing sub-µA operation without sacrificing rail-to-rail I/O or precision DC specs.
FAQ
What is the maximum supply voltage rating for MAX406BEPA?
The MAX406BEPA supports a maximum supply voltage of 16V across its V+ and V– terminals. This rating applies over the full -40°C to +85°C operating temperature range and is specified with no derating. Exceeding 16V may cause permanent damage. The device is not designed for split-supply operation above ±8V, and absolute maximum ratings assume proper decoupling and thermal management per Maxim's layout guidelines.
Does MAX406BEPA support rail-to-rail input and output simultaneously?
Yes, MAX406BEPA supports rail-to-rail input common-mode range (extending 0.1V beyond both supply rails) and rail-to-rail output swing (within 10mV of each rail under 10kΩ load). This simultaneous capability enables direct interfacing with grounded sensors and full-scale utilization of 3.3V or 5V ADCs without external level-shifting circuitry, as confirmed in the MAX406/MAX407/MAX409 datasheet Rev. 4.
What is the function of pins 5, 6, and 8 on MAX406BEPA?
Pins 5, 6, and 8 on MAX406BEPA are designated as no-connect (NC) terminals. They are internally unconnected and must remain unattached in all PCB layouts. Routing traces to or placing vias on these pins violates Maxim's recommended practice and may introduce parasitic coupling or mechanical stress. The DIP-8 package uses these positions solely for mechanical symmetry and pin-count alignment with other members of the MAX406 family.
Can MAX406BEPA operate from a 2.7V single supply?
Yes, MAX406BEPA is fully specified to operate from a minimum supply voltage of 2.7V, delivering guaranteed performance including 1.2µA max supply current, ±1mV max input offset, and rail-to-rail output swing. This makes it suitable for direct integration with partially discharged alkaline or lithium primary cells in long-life sensor nodes, as validated across the -40°C to +85°C temperature range per the official Maxim datasheet.
Is MAX406BEPA pin-compatible with other devices in the MAX406 family?
Yes, MAX406BEPA shares identical pinout and footprint with all MAX406 variants in the same package type-including MAX406ACPA, MAX406BCPA, MAX406AEPA, and MAX406AMJA-regardless of temperature grade or process variant. This allows drop-in replacement across commercial, extended, and military temperature versions when using the 8-pin plastic DIP package, provided system-level thermal and lifetime requirements are met.
MAX406BEPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 750 µV
- Current - Supply:
- 1µA
- Current - Output / Channel:
- 600 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX406BEPA FAQ
1.How can I place an order for MAX406BEPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX406BEPA 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 MAX406BEPA reliable?
The price and inventory of MAX406BEPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX406BEPA is usually 5 days.
3.What payment methods are accepted for MAX406BEPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX406BEPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX406BEPA?
MAX406BEPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX406BEPA 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 MAX406BEPA?
For technical support, including MAX406BEPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX406BEPA requirements.
6.How does Aetrix verify that MAX406BEPA is sourced from the original manufacturer or authorized distributors?
All MAX406BEPA 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 MAX406BEPA meets industry standards.
7.What is the process for return or replacement of MAX406BEPA?
All MAX406BEPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX406BEPA, 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 MAX406BEPA part is unused and in its original packaging.
Return procedure for MAX406BEPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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