MAX968EUA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: Low-power, rail-to-rail output, single-supply operation
• Package: 8-pin µMAX® package
• Essence: Operational amplifier
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Input Offset Voltage: ±1mV (max)
• Gain Bandwidth Product: 1MHz (typ)
• Slew Rate: 0.5V/µs (typ)
• Input Bias Current: 1pA (typ)
• Output Current: 40mA (max)

Pin Configuration

The MAX968EUA has the following pin configuration:

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| | --| IN- OUT |-- Pin 1: Negative input --| IN+ VCC |-- Pin 2: Positive input and supply voltage --| GND NC |-- Pin 3: Ground and no connection --| NC OUT |-- Pin 4: No connection and output --| NC IN- |-- Pin 5: No connection and negative input --| NC IN+ |-- Pin 6: No connection and positive input --| SHDN GND |-- Pin 7: Shutdown and ground --|___________|-- Pin 8: Not connected ```

Functional Features

• Low-power consumption for battery-operated devices
• Rail-to-rail output swing allows maximum utilization of the supply voltage range
• Single-supply operation simplifies circuit design
• Shutdown mode for power-saving when not in use
• High output current capability for driving various loads

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life - Rail-to-rail output swing provides maximum signal range - Single-supply operation simplifies circuit design

Disadvantages: - Limited gain bandwidth product may restrict high-frequency applications - Shutdown mode may introduce additional complexity in control circuitry

Working Principles

The MAX968EUA is an operational amplifier designed for low-power applications. It operates from a single supply voltage ranging from 2.5V to 5.5V, making it suitable for battery-powered devices. The rail-to-rail output swing allows the amplifier to utilize the full supply voltage range, maximizing the signal amplitude.

The device features a shutdown mode that reduces power consumption when the amplifier is not in use. This feature is particularly useful in portable devices where power-saving is crucial. The MAX968EUA also has a high output current capability, enabling it to drive various loads.

Detailed Application Field Plans

The MAX968EUA is commonly used in the following applications:

1. Portable audio devices: The low-power consumption and rail-to-rail output swing make it ideal for amplifying audio signals in portable music players and headphones.
2. Sensor interfaces: The single-supply operation and low input offset voltage allow accurate amplification of sensor signals in applications such as temperature measurement and pressure sensing.
3. Battery-powered systems: The low-power characteristics and shutdown mode make it suitable for use in battery management circuits, extending the battery life of devices.

Detailed and Complete Alternative Models

Some alternative models to the MAX968EUA include:

1. MAX964ESA: Similar low-power operational amplifier with a different pin configuration (8-pin SOIC package).
2. MAX962ESA: Low-power operational amplifier with a wider supply voltage range (2.7V to 11V) and higher gain bandwidth product (2MHz).

These alternative models offer similar functionality and can be considered based on specific application requirements.

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