Analog Devices Inc./Maxim Integrated MAX4402AKA/V+T

Overview

MAX4402AKA/V+T from Maxim Integrated is a dual, rail-to-rail output operational amplifier designed for automotive-grade signal conditioning in harsh environments. It operates from a single +2.5V to +5.5V supply, draws 320µA per amplifier (typ), delivers ±1.4mA output current, and is unity-gain stable up to 400pF capacitive load - enabling robust sensor interface and zero-crossing detection in engine control units.

For engineers reviewing the MAX4402AKA/V+T datasheet, MAX4402AKA/V+T pinout, MAX4402AKA/V+T application, or MAX4402AKA/V+T equivalent, key selection criteria include AEC-Q100 qualification, −40°C to +125°C operation, 8-pin SOT23 package compatibility, and absence of shutdown functionality - distinguishing it from the MAX4401 variant.

Technical Context

The MAX4402AKA/V+T implements a ground-sensing input stage with rail-to-rail output swing, achieving ±1.4mA sourcing/sinking capability while maintaining 110dB open-loop gain (AVOL) into 2kΩ loads. Its 1MHz gain-bandwidth product and 70° phase margin ensure stability across temperature and load conditions without external compensation.

It features 68–84dB common-mode rejection (CMRR) and 78–100dB power-supply rejection (PSRR), supporting precision DC-coupled amplification in noisy automotive power domains. Input offset voltage is specified at ±1.0mV (typ) to ±5.5mV (max) over temperature, with ±1μV/°C drift - critical for low-drift sensor front-ends.

Key Specifications

Pinout & Package

MAX4402AKA/V+T is housed in an 8-pin SOT23 package (package code K8+5A), RoHS-compliant, with thermal resistance θJA = 196°C/W on four-layer board - suitable for compact PCB layouts with moderate power dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual op amp applications.

Compared with MAX4402AUA/V+T, the MAX4402AKA/V+T offers identical electrical performance in a more manufacturable SOT23 package with established reflow profiles; versus TSV912IDT, it delivers superior DC precision, noise immunity, and input flexibility - justifying its use in safety-critical signal chains.

Availability

MAX4402AKA/V+T is available at Aetrix Electronics and suitable for automotive engine control, cabin air quality monitoring, electronic ignition feedback, and brake-by-wire pressure transducer interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4402AKA/V+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 automotive, industrial, and communications markets - emphasizing reliability, integration, and ruggedized performance.

The MAX4400–MAX4403 family was engineered specifically for cost-sensitive, high-volume automotive signal-conditioning applications requiring rail-to-rail operation, low quiescent current, and AEC-Q100 compliance - with the MAX4402AKA/V+T targeting dual-channel roles in ECU and body electronics.

FAQ

Is MAX4402AKA/V+T pin-compatible with non-automotive variants like MAX4402AKA+T?

Yes, MAX4402AKA/V+T shares identical pinout, electrical specifications, and 8-pin SOT23 mechanical footprint with MAX4402AKA+T. The "/V" suffix denotes AEC-Q100 qualification and automotive-grade screening - no layout changes are required when upgrading from industrial to automotive grade.

Does MAX4402AKA/V+T include a shutdown feature?

No, MAX4402AKA/V+T does not include a shutdown function. Shutdown is exclusive to the MAX4401 (single-channel, 6-pin SC70). The MAX4402AKA/V+T is a dual op amp without SHDN pin - all pins are signal or supply terminals as defined in the 8-pin SOT23 configuration.

What is the maximum capacitive load MAX4402AKA/V+T can drive without instability?

MAX4402AKA/V+T is unity-gain stable with capacitive loads up to 400pF, as confirmed in the datasheet's Electrical Characteristics table and Typical Operating Characteristics (Figure MAX4400 toc19). Driving larger loads requires series output isolation (e.g., 10–100Ω resistor) to maintain phase margin.

Can MAX4402AKA/V+T operate from a 3.3V supply?

Yes, MAX4402AKA/V+T operates across +2.5V to +5.5V - fully compatible with 3.3V systems. At VDD = 3.3V, quiescent current remains ~320µA per amplifier, output swing achieves rail-to-rail performance, and 1MHz gain-bandwidth is preserved per characterization data.

How does the AEC-Q100 qualification of MAX4402AKA/V+T impact its use in non-automotive applications?

AEC-Q100 qualification ensures MAX4402AKA/V+T undergoes accelerated stress testing for temperature cycling, humidity, and solderability - resulting in higher reliability and longer field life. These benefits apply equally in industrial or medical applications requiring extended operating life and robustness, though qualification itself is automotive-specific.