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Analog Devices Inc./Maxim Integrated MAX4402AKA-T
- Part No.:
- MAX4402AKA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
MAX4402AKA-T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,847
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Product details
Overview
MAX4402AKA-T from Maxim Integrated is a dual, rail-to-rail output operational amplifier optimized for single-supply operation from +2.5V to +5.5V, drawing only 320µA per amplifier, delivering ±1.4mA output current, and featuring unity-gain stability with up to 400pF capacitive loads - widely deployed in automotive sensor signal conditioning and portable communications front-ends.
For engineers reviewing the MAX4402AKA-T datasheet, MAX4402AKA-T pinout, MAX4402AKA-T application, or MAX4402AKA-T equivalent, key selection criteria include its AEC-Q100 qualification (for /V+ variants), 8-pin SOT23 package footprint, -40°C to +125°C operating range, and rail-to-rail output swing within 55mV of supply rails under 2kΩ load.
Technical Context
The MAX4402AKA-T implements a ground-sensing input stage and rail-to-rail CMOS output stage, enabling full dynamic range utilization in single-supply systems where input signals extend to VSS. 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 low input bias current (±0.1pA typ), high open-loop gain (110dB with 2kΩ load), and excellent power-supply rejection (100dB typ), making it suitable for precision DC-coupled amplification in noisy automotive environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports direct connection to Li-ion battery or 3.3V/5V system rails without regulation. |
| Quiescent Current per Amplifier | 320µA - enables always-on sensor interfaces with sub-1mW total dissipation per channel. |
| Gain-Bandwidth Product | 1MHz - sufficient for anti-aliasing filters, active RC filters, and medium-speed signal conditioning up to ~100kHz. |
| Rail-to-Rail Output Swing | Within 55mV of VDD/VSS at 2kΩ load - maximizes ADC input dynamic range in single-supply data acquisition. |
| Input Offset Voltage | ±1.0mV (max) - ensures <100µV error in 100mV full-scale sensor outputs without trimming. |
| Capacitive-Load Stability | Stable up to 400pF - eliminates need for isolation resistors when driving ADC inputs or long PCB traces. |
| Operating Temperature Range | -40°C to +125°C - qualified for under-hood automotive and industrial control applications. |
Pinout & Package
MAX4402AKA-T is housed in an 8-pin SOT23 package (package code K8+5A, outline 21-0078), offering compact footprint (2.9mm × 1.6mm) and thermal resistance θJA = 196°C/W on four-layer board - ideal for space-constrained automotive modules and portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Output of amplifier A - rail-to-rail capable, ±1.4mA drive, high-impedance when unused. |
| 2 | INA+ | Noninverting input of amplifier A - ground-sensing, common-mode range extends to VSS. |
| 3 | INA− | Inverting input of amplifier A - matched to INA+, supports precision differential configurations. |
| 4 | VSS | Negative supply terminal - connect directly to system ground in single-supply operation. |
| 5 | VDD | Positive supply terminal - bypass with 0.1µF ceramic capacitor to minimize PSRR degradation. |
| 6 | INB− | Inverting input of amplifier B - electrically isolated from amplifier A; no crosstalk below -60dB @ 100kHz. |
| 7 | INB+ | Noninverting input of amplifier B - identical input characteristics to INA+; supports dual-channel synchronous sensing. |
| 8 | OUTB | Output of amplifier B - independently driven, same AC/DC performance as OUTA. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Swings within 55mV of VDD/VSS at 2kΩ load - preserves >95% of ADC full-scale range in 3.3V systems. |
| Ground-sensing inputs | Common-mode voltage range includes VSS - enables direct interfacing with current-sense shunts or thermocouples referenced to ground. |
| Unity-gain stability with CLOAD ≤ 400pF | No external compensation required when driving typical SAR ADC inputs or 10cm PCB traces. |
| Low THD (0.015% @ 10kHz) | Maintains signal fidelity in audio preamps and IR receiver baseband amplifiers without harmonic distortion artifacts. |
| AEC-Q100 qualified (for /V+ variants) | Validated for automotive Grade 2 (-40°C to +105°C ambient) and Grade 1 (-40°C to +125°C ambient) operation. |
Applications
| Automotive Sensor Signal Conditioning | Portable Communications Front-End |
|---|---|
|
Use Scenario: Amplifying low-level signals from exhaust gas oxygen (EGO) sensors and wheel speed sensors in engine control units. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier providing gain, level-shifting, and drive capability for 12-bit ADCs. Use Value: Rail-to-rail output and ground-sensing inputs enable full utilization of 0–3.3V ADC range without external level-shifters or negative supplies. |
Use Scenario: Signal conditioning for Bluetooth/Wi-Fi RF transceiver baseband I/Q paths and microphone preamplification in handheld devices. IC Role / Device Role / Timing Role: Low-noise, low-power dual op amp implementing active filters and gain stages before ADC/DAC conversion. Use Value: 320µA per amplifier and shutdown-free architecture support always-on voice activation with minimal battery drain. |
| Infrared Receiver Signal Amplification | Electronic Ignition Module Feedback |
|
Use Scenario: Amplifying weak, pulsed 38kHz carrier-demodulated signals from IR remote receivers in automotive infotainment and HVAC controls. IC Role / Device Role / Timing Role: High-speed, low-THD dual amplifier configured as transimpedance and post-amplifier stages. Use Value: 1MHz GBW and 0.015% THD preserve pulse edge integrity and amplitude accuracy for reliable digital decoding. |
Use Scenario: Closed-loop current sensing and feedback amplification in coil driver circuits for gasoline engine spark timing control. IC Role / Device Role / Timing Role: Precision dual op amp performing current-to-voltage conversion and comparator reference generation. Use Value: ±1.0mV max input offset and -40°C to +125°C operation ensure consistent ignition timing across extreme ambient conditions. |
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 |
|---|---|---|---|
| TSV912IDT | Higher quiescent current (1.1mA), lower GBW (8MHz), no AEC-Q100 qualification. | Better for higher-frequency filtering but unsuitable for automotive under-hood use without additional qualification. | Select when bandwidth >1MHz is required and automotive qualification is not mandatory. |
| LMV358IDR | Wider supply range (2.7V–5.5V), higher input offset (±3mV), no guaranteed 125°C operation. | Cost-optimized for consumer-grade industrial controls where extended temperature is not critical. | Select for cost-sensitive non-automotive applications requiring basic rail-to-rail performance. |
Compared with TSV912IDT and LMV358IDR, MAX4402AKA-T delivers superior low-power operation (320µA vs. >1mA), guaranteed +125°C performance, and AEC-Q100 compliance - making it the only option qualified for automotive powertrain and chassis modules without derating or requalification.
Availability
MAX4402AKA-T is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable communications front-ends, infrared receiver modules, and electronic ignition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4402AKA-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 and mixed-signal ICs for demanding industrial, automotive, and communications applications - emphasizing reliability, integration, and ruggedized performance.
The MAX4400–MAX4403 family was developed specifically for cost-sensitive, low-power, single-supply signal conditioning in harsh environments - targeting automotive subsystems, portable instrumentation, and battery-powered sensing nodes.
FAQ
What is the maximum capacitive load the MAX4402AKA-T can drive while remaining unity-gain stable?
The MAX4402AKA-T is unity-gain stable with capacitive loads up to 400pF, as confirmed in the Electrical Characteristics table and Typical Operating Characteristics (Figure MAX4400 toc19). This allows direct connection to most SAR ADC inputs and eliminates the need for output isolation resistors in standard PCB layouts - a key advantage over many general-purpose op amps that require compensation networks for loads exceeding 50pF.
Does the MAX4402AKA-T include a shutdown feature?
No, the MAX4402AKA-T does not include a shutdown feature. Shutdown functionality is exclusive to the MAX4401 (single-channel, 6-pin SC70). The MAX4402AKA-T is a dual-channel device without SHDN pin or related circuitry - confirmed by the Pin Description table and Selector Guide, which lists "No" under Shutdown Mode for MAX4402. Power management must be handled externally via supply switching.
Is the MAX4402AKA-T qualified for automotive applications?
The MAX4402AKA-T itself is not AEC-Q100 qualified; only the MAX4402AKA/V+T and MAX4402AUA/V+T variants carry AEC-Q100 qualification. Per the Ordering Information table and Benefits and Features section, AEC-Q100 qualification applies exclusively to parts marked "/V+". Engineers requiring automotive qualification must specify MAX4402AKA/V+T - the /V+ suffix denotes automotive-grade screening and testing.
What is the input common-mode voltage range of the MAX4402AKA-T?
The MAX4402AKA-T features ground-sensing inputs with a common-mode voltage range extending from VSS to (VDD − 1.4V) at +25°C, and to (VDD − 1.5V) over the full -40°C to +125°C range. This allows direct interfacing with sensors referenced to ground - such as current-sense shunts or thermistors - without level-shifting circuitry, simplifying design and reducing component count in battery- and automotive-supplied systems.
What package type is used for the MAX4402AKA-T?
The MAX4402AKA-T uses an 8-pin SOT23 package (package code K8+5A, outline number 21-0078), measuring 2.9mm × 1.6mm with a 0.95mm height. This ultra-small outline is compatible with standard SOT23 pick-and-place equipment and offers thermal resistance θJA = 196°C/W on a four-layer board - making it suitable for high-density automotive ECUs and portable medical devices where board space and thermal performance are critical constraints.
MAX4402AKA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- 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:
- SOT-23-8
MAX4402AKA-T FAQ
1.How can I place an order for MAX4402AKA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4402AKA-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 MAX4402AKA-T reliable?
The price and inventory of MAX4402AKA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4402AKA-T is usually 5 days.
3.What payment methods are accepted for MAX4402AKA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4402AKA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4402AKA-T?
MAX4402AKA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4402AKA-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 MAX4402AKA-T?
For technical support, including MAX4402AKA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4402AKA-T requirements.
6.How does Aetrix verify that MAX4402AKA-T is sourced from the original manufacturer or authorized distributors?
All MAX4402AKA-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 MAX4402AKA-T meets industry standards.
7.What is the process for return or replacement of MAX4402AKA-T?
All MAX4402AKA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4402AKA-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 MAX4402AKA-T part is unused and in its original packaging.
Return procedure for MAX4402AKA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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