Manufacturer Part Number

MAX4232AKA+T

Description

The MAX4232AKA+T is a CMOS dual operational amplifier from Analog Devices Inc./Maxim Integrated. It features two independent operational amplifiers in a single SOT-23-8 package. It is a precision amplifier with rail-to-rail output, low input bias current, and works well for signal conditioning, sensor interfaces, and portable equipment.

Specifications

Number of amplifiers: 2

Amplifier type: CMOS

Output: Rail-to-rail

Slew rate: 10 V/µs

Gain bandwidth product: 10 MHz

Input bias current: 1 pA

Input offset voltage: 850 µV

Supply current: 1.2 mA/channel

Max output current per channel: 200 mA

Supply voltage: 2.7 V to 5.5 V

Operating temperature: -40°C to +125°C

Package type: SOT-23-8, surface mount

RoHS3 Compliant, REACH unaffected

Moisture Sensitivity Level: 1 (Unlimited)

ECCN code: EAR99

HTSUS code: 8542.33.0001

Device Structure

The device contains two CMOS operational amplifier circuits in a compact SOT-23-8 surface-mount package. Inputs and outputs are rail-to-rail making them suitable for low voltage operation. Each amplifier requires 1.2 mA of supply current.

Performance Characteristics

Very low input bias current and low offset voltage support accurate and precise analog signal processing. The high slew rate (10 V/µs) and 10 MHz bandwidth allow support for fast signal changes and high-frequency applications. Rail-to-rail output means the output voltage can swing very close to both supply rails, maximizing dynamic range.

Application Environments

Common in signal conditioning, sensor interfaces, industrial controls, portable devices, communication systems, handheld meters, and anywhere high-accuracy dual amplifiers are required and board space is limited.

Selection Guidelines

Choose this part if you need:

Dual precision op amps

Low input bias current (1 pA)

Low offset voltage (850 µV)

Rail-to-rail output for full dynamic range

High bandwidth (10 MHz)

Small size (SOT-23-8)

Supply voltage between 2.7 V and 5.5 V

High output current capability (200 mA per channel)

Low operating current for battery applications

Usage Considerations

Make sure supply voltage is between 2.7 V and 5.5 V

Do not exceed 200 mA output per channel

Suitable for both single and dual supply operation

Ensure proper grounding and PCB layout for best precision

Ideal for high-side or low-side signal sensing in space-constrained environments

Potential Equivalent/Replacement Models

There are several alternative and equivalent models in the market. Possible equivalents include:

MAX4232AUT+T (variant with different packaging)

Texas Instruments TLV2372 (dual CMOS op amp, similar specs)

OPA2333 (high precision, dual CMOS op amp)

MCP6022 (Microchip dual CMOS Op Amp, lower bandwidth)

LM358 (classic dual op amp, not rail-to-rail, lower bandwidth)

If exact equivalents for critical specs are required (such as very low bias current and rail-to-rail output), contact the Ariat-Tech sales team with your full requirements for custom recommendations and up-to-date cross-references.

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