LMH6646MM

Product Overview

Category: Integrated Circuit (IC)

Use: LMH6646MM is a high-speed operational amplifier designed for use in various applications such as video amplification, active filters, and data acquisition systems.

Characteristics: - High bandwidth: LMH6646MM offers a wide bandwidth of up to 300 MHz, making it suitable for high-frequency applications. - Low input bias current: With an input bias current as low as 1.5 pA, this operational amplifier ensures minimal impact on the input signal. - Low noise: LMH6646MM has a low noise figure, providing accurate amplification without introducing significant noise. - Rail-to-rail output swing: The operational amplifier can drive signals close to the supply rails, maximizing the dynamic range.

Package: LMH6646MM comes in a miniature 8-pin VSSOP package, which allows for space-efficient integration into various circuit designs.

Essence: LMH6646MM is a versatile operational amplifier that combines high speed, low noise, and rail-to-rail output swing capabilities, making it ideal for demanding applications requiring accurate signal amplification.

Packaging/Quantity: LMH6646MM is typically available in reels containing 2500 units per reel.

Specifications

• Supply voltage: ±2.5V to ±6V
• Input offset voltage: ±1 mV
• Input bias current: 1.5 pA
• Bandwidth: 300 MHz
• Slew rate: 1000 V/μs
• Quiescent current: 7.5 mA
• Output current: ±50 mA
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

LMH6646MM features the following pin configuration:

1. OUT-
2. IN-
3. V-
4. V+
5. IN+
6. NC
7. NC
8. OUT+

Functional Features

• High-speed amplification: LMH6646MM offers a wide bandwidth and fast slew rate, enabling accurate amplification of high-frequency signals.
• Low noise operation: The operational amplifier ensures minimal noise interference, making it suitable for applications requiring precise signal amplification.
• Rail-to-rail output swing: LMH6646MM can drive signals close to the supply rails, maximizing the dynamic range and allowing for accurate signal reproduction.

Advantages and Disadvantages

Advantages: - Wide bandwidth enables high-speed signal amplification. - Low input bias current minimizes the impact on the input signal. - Rail-to-rail output swing maximizes the dynamic range. - Low noise figure ensures accurate amplification without significant noise interference.

Disadvantages: - Limited operating temperature range (-40°C to +85°C). - Requires dual power supply (±2.5V to ±6V).

Working Principles

LMH6646MM operates based on the principles of operational amplifiers. It utilizes differential inputs to amplify the voltage difference between the input terminals. The amplified output is then provided through the rail-to-rail output stage, ensuring accurate reproduction of the input signal.

Detailed Application Field Plans

LMH6646MM finds applications in various fields, including: 1. Video amplification: The high bandwidth and low noise characteristics make it suitable for video signal amplification in applications such as surveillance systems and video processing equipment. 2. Active filters: LMH6646MM can be used in active filter circuits to amplify and shape specific frequency components of a signal. 3. Data acquisition systems: The operational amplifier can be employed in data acquisition systems to accurately amplify weak sensor signals before further processing.

Detailed and Complete Alternative Models

1. AD8056: This operational amplifier offers similar high-speed performance with a bandwidth of 300 MHz and low input bias current.
2. LT1813: With a bandwidth of 200 MHz, this operational amplifier provides rail-to-rail output swing and low noise operation.
3. OPA847: This high-speed operational amplifier features a bandwidth of 350 MHz and low input bias current, making it suitable for demanding applications.

(Note: The above alternative models are provided for reference and may have different specifications and pin configurations. It is recommended to refer to the respective datasheets for detailed information.)

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