LMH6629SDE

更新时间： 2024-11-26 05:42:27

品牌	Logo	应用领域
美国国家半导体 - NSC		运算放大器光电二极管
页数	文件大小	规格书
22页	880K
描述
Ultra-Low Noise, High Speed Operational Amplifier

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LMH6629SDE 数据手册

June 3, 2010

LMH6629

Ultra-Low Noise, High Speed Operational Amplifier

General Description

Features

The LMH6629 is a high speed, ultra low-noise amplifier de-

signed for applications requiring wide bandwidth with high

gain and low noise such as in communication, test and mea-

surement, optical and ultrasound systems.

Specified for V_S= 5V, R_L= 100Ω, A_V= 10V/V

–3dB bandwidth

900MHz

0.69 nV/√Hz

±780 µV

1600 V/ μs

−90 dBc

−94 dBc

2.7V to 5.5V

15.5 mA

■

Input voltage noise

Input offset voltage max. @ 25°C

Slew rate

HD2 @ f = 1MHz, 2V_PP

HD3 @ f = 1MHz, 2V_PP

Supply voltage range

Typical supply current

Selectable min. gain

Package

■

The LMH6629 operates on 2.7 to 5.5V supply with an input

common mode range that extends below ground and outputs

that swing to within 0.8V of the rails for ease of use in single

supply applications. The LMH6629 has user-selectable inter-

nal compensation for minimum gains of 4 or 10 controlled by

pulling the COMP pin low or high, thereby avoiding the need

for external compensation capacitors required in competitive

devices.

≥4 or ≥10

LLP-8

The low-input noise (0.69nV/√Hz and 2.6 pA/√Hz), low dis-

tortion (HD2/ HD3 = −90 dBc/ −94 dBc) and ultra-low DC

errors (780 µV V_OSMax @ 25°C, ±0.45 µV/°C drift) allow pre-

cision operation in both AC- and DC-coupled applications.

Applications

Instrumentation Amplifiers

■

Ultrasound Pre-amps

The LMH6629 is fabricated in National Semiconductor’s pro-

prietary SiGe process and is available in a 3mm x 3mm, 8 pin

LLP package.

Wide-band Active Filters

Opto-electronics

Medical imaging systems

Base-station Amplifiers

Trans-impedance amplifier

■

Typical Application Circuit

30068011

FIGURE 1. Transimpedance Amplifier

300680

www.national.com

12 3 4 5 6 7...22

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