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Analog Devices Inc./Maxim Integrated MAX4402ASA
- Part No.:
- MAX4402ASA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4402ASA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,691
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Product details
Overview
MAX4402ASA from Maxim Integrated is a dual, rail-to-rail output operational amplifier optimized for single-supply operation from +2.5V to +5.5V, delivering 320µA quiescent current per amplifier, ±1.4mA output drive, and unity-gain stability with up to 400pF capacitive loads. It operates across –40°C to +125°C and is packaged in an 8-pin SO (small-outline) package for automotive and industrial signal conditioning.
For engineers reviewing the MAX4402ASA datasheet, MAX4402ASA pinout, MAX4402ASA application, or MAX4402ASA equivalent, key selection criteria include its AEC-Q100 qualification (for /V+ variants), low-power rail-to-rail performance, dual-channel integration in space-constrained layouts, and compatibility with harsh-environment sensor interfaces requiring stable DC gain and low THD (0.015% at 2kΩ).
Technical Context
The MAX4402ASA implements a ground-sensing input stage and rail-to-rail CMOS output stage, enabling full dynamic range utilization in single-supply systems. Its 1MHz gain-bandwidth product and 70° phase margin ensure stable closed-loop operation at unity gain with capacitive loads up to 400pF.
It features high DC precision: 110dB open-loop gain (AVOL) into 2kΩ, ±1.0mV (typ) input offset voltage, and 84dB common-mode rejection (CMRR) over VCM = VSS to VDD − 1.4V - supporting accurate amplification of low-level sensor signals near ground or supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - enables direct interfacing with 3.3V and 5V microcontrollers without level-shifting. |
| Quiescent Current | 320µA per amplifier - supports battery-powered instrumentation with multi-day runtime. |
| Gain-Bandwidth Product | 1MHz - sufficient for anti-aliasing filters, sensor amplification, and low-frequency control loops. |
| Output Drive | ±1.4mA into 2kΩ - drives ADC reference buffers and analog multiplexers without external gain stages. |
| Rail-to-Rail Output Swing | Within 55mV of VDD/VSS at 2kΩ - maximizes signal swing and SNR in low-voltage data acquisition. |
| Input Offset Voltage | ±1.0mV (typ), ±5.5mV (max) - ensures <0.1% gain error in 1V-range sensor outputs. |
| Capacitive Load Stability | Stable up to 400pF - eliminates need for isolation resistors when driving long traces or ADC inputs. |
Pinout & Package
MAX4402ASA is housed in an 8-pin SO (small-outline integrated circuit) package, measuring 4.9mm × 6.0mm × 1.75mm (JEDEC MS-012), RoHS-compliant, with gull-wing leads and standard 1.27mm pitch. Thermal resistance θJA is 136°C/W on a four-layer board, supporting continuous operation at +125°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Low-impedance rail-to-rail source/sink node; connects directly to ADC input or filter network. |
| 2 (INA−) | Inverting input A | Differential input node; requires matched trace lengths and guard ring for high-CMRR applications. |
| 3 (INA+) | Noninverting input A | High-impedance (1000GΩ) sensor interface node; supports high-Z transducer connections. |
| 4 (VSS) | Negative supply | Ground reference for single-supply operation; must be low-impedance return path for both amplifiers. |
| 5 (VDD) | Positive supply | +2.5V to +5.5V power rail; requires local 0.1µF ceramic bypass capacitor to minimize PSRR degradation. |
| 6 (INB−) | Inverting input B | Independent second channel input; enables differential pair or dual-sensor readout without cross-talk. |
| 7 (INB+) | Noninverting input B | Second high-Z input; identical specs to INA+, allowing matched dual-channel front-end design. |
| 8 (OUTB) | Amplifier B output | Fully independent output; channel-to-channel isolation >60dB at 100kHz supports simultaneous sampling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers full 0V–VDD output swing into 2kΩ, preserving dynamic range in 3.3V systems. |
| Ground-sensing inputs | Accepts common-mode voltages down to VSS, enabling direct connection to shunt current sensors or thermocouples. |
| Unity-gain stability with CL ≤ 400pF | Eliminates external compensation components when driving ADCs or long PCB traces. |
| 110dB open-loop gain (AVOL) | Ensures <0.001% gain error in precision gain stages using 1% feedback resistors. |
| 0.015% THD at 10kHz (2kΩ load) | Supports audio-grade signal paths and high-fidelity sensor digitization without harmonic distortion artifacts. |
Applications
| Automotive Sensor Interface | Portable Instrumentation |
|---|---|
Use Scenario: Amplifying low-level signals from exhaust gas oxygen (EGO) sensors and crankshaft position Hall-effect sensors in engine control units. IC Role / Device Role / Timing Role: Dual-channel signal conditioner providing rail-to-rail output swing and ground-sensing inputs to capture full sensor range under 5V single supply. Use Value: Enables direct ADC interfacing without level-shifting, reducing BOM count and improving cold-start reliability at –40°C. | Use Scenario: Signal conditioning for handheld multimeters and portable gas analyzers powered by two AA batteries. IC Role / Device Role / Timing Role: Dual op amp performing transimpedance conversion and buffer amplification in ultra-low-power analog front end. Use Value: 320µA per amplifier quiescent current extends battery life beyond 200 hours while maintaining 1MHz bandwidth for fast measurement updates. |
| Industrial Temperature Monitoring | Infrared Receiver Front End |
Use Scenario: Amplifying output of RTD or thermistor bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision dual amplifier implementing 3-wire RTD excitation and differential sensing with matched gain paths. Use Value: ±1.0mV input offset and 84dB CMRR reject noise from 50/60Hz AC mains coupling in factory environments. | Use Scenario: Demodulating pulsed IR signals from remote controls and proximity sensors in consumer electronics. IC Role / Device Role / Timing Role: High-speed dual amplifier configured as AC-coupled bandpass filter and DC-restored comparator driver. Use Value: 1MHz GBW and 1V/µs slew rate support clean pulse shaping of 38kHz carrier bursts without overshoot or ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher 2.2mA quiescent current per amplifier; 6.4MHz GBW; no AEC-Q100 qualification. | Better for higher-speed filtering but unsuitable for automotive temperature sensors requiring extended temp range and qualification. | Select TLV2462IDR only if bandwidth >1MHz is required and automotive qualification is not mandated. |
| AD8602ARZ | Lower 0.5mV max VOS; 8MHz GBW; 1.2mA IQ; specified only to +105°C (not +125°C). | Superior DC accuracy for precision weighing scales, but lacks extended temperature rating for under-hood automotive use. | Choose AD8602ARZ for lab-grade instrumentation where offset drift and noise dominate, not thermal ruggedness. |
Compared with TLV2462IDR and AD8602ARZ, MAX4402ASA uniquely balances ultra-low power (320µA), extended temperature operation (–40°C to +125°C), rail-to-rail output, and AEC-Q100 eligibility - making it the optimal choice for cost-sensitive, thermally demanding dual-channel analog front ends where power and qualification are non-negotiable.
Availability
MAX4402ASA is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable instrumentation, industrial temperature monitoring, and infrared receiver designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4402ASA 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 semiconductor company specializing in precision analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4400–MAX4403 family was designed to deliver low-cost, robust, rail-to-rail op amps for harsh-environment signal conditioning - specifically targeting automotive subsystems, portable equipment, and industrial sensors needing wide supply range and guaranteed +125°C operation.
FAQ
What is the operating temperature range of the MAX4402ASA?
The MAX4402ASA is fully specified from –40°C to +125°C, with all electrical parameters guaranteed across this range. This makes MAX4402ASA suitable for under-hood automotive applications, industrial control cabinets, and outdoor environmental monitoring systems where thermal extremes are expected. The device's AEC-Q100 qualification applies to /V+ variants (e.g., MAX4402AKA/V+), not the standard MAX4402ASA, which meets the same temperature and reliability requirements but lacks formal automotive certification documentation.
Does the MAX4402ASA include a shutdown feature?
No, the MAX4402ASA does not include a shutdown feature. Shutdown functionality is exclusive to the MAX4401 (single-channel, 6-pin SC70). The MAX4402ASA is a dual-channel op amp without enable/disable control pins. If low-power standby capability is required, system-level power gating of VDD or use of the pin-compatible MAX4401 for single-channel needs should be considered - but MAX4402ASA itself has no SHDN pin or related circuitry.
What package type is used for the MAX4402ASA?
The MAX4402ASA uses an 8-pin SO (small-outline) package, also known as SOIC-8 or narrow SO. Its outline number is 21-0041, land pattern number 90-0096, with 1.27mm lead pitch and gull-wing leads. This package is RoHS-compliant, surface-mount compatible, and thermally rated for 136°C/W junction-to-ambient (θJA) on a four-layer PCB - supporting reliable operation in high-density industrial and automotive PCB layouts.
Can the MAX4402ASA drive a 400pF capacitive load stably?
Yes, the MAX4402ASA is unity-gain stable with capacitive loads up to 400pF, as confirmed in the Electrical Characteristics table and Typical Operating Characteristics (Figure 19). This allows direct connection to ADC inputs, long PCB traces, or RC filters without external isolation resistors. Stability is maintained across the full –40°C to +125°C temperature range and supply voltage range (+2.5V to +5.5V), eliminating risk of oscillation in production systems.
What is the typical input offset voltage for the MAX4402ASA?
The typical input offset voltage for the MAX4402ASA is ±1.0mV at +25°C, with a maximum of ±5.5mV across the full –40°C to +125°C operating range. This specification is explicitly stated in the Electrical Characteristics table under "Input Offset Voltage" for MAX4402/MAX4403. The low offset supports accurate amplification of millivolt-level sensor outputs - such as thermocouples or bridge-based pressure sensors - without requiring manual nulling or digital calibration in many applications.
MAX4402ASA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 800 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 410µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4402ASA FAQ
1.How can I place an order for MAX4402ASA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4402ASA 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 MAX4402ASA reliable?
The price and inventory of MAX4402ASA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4402ASA is usually 5 days.
3.What payment methods are accepted for MAX4402ASA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4402ASA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4402ASA?
MAX4402ASA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4402ASA 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 MAX4402ASA?
For technical support, including MAX4402ASA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4402ASA requirements.
6.How does Aetrix verify that MAX4402ASA is sourced from the original manufacturer or authorized distributors?
All MAX4402ASA 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 MAX4402ASA meets industry standards.
7.What is the process for return or replacement of MAX4402ASA?
All MAX4402ASA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4402ASA, 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 MAX4402ASA part is unused and in its original packaging.
Return procedure for MAX4402ASA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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