LMH6643

更新时间： 2024-11-11 12:09:51

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
32页	1568K
描述
LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

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LMH6643 数据手册

LMH6642, LMH6643, LMH6644

www.ti.com

SNOS966P –MAY 2001–REVISED MARCH 2013

LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

Check for Samples: LMH6642, LMH6643, LMH6644

FEATURES

DESCRIPTION

The LMH664X family true single supply voltage

feedback amplifiers offer high speed (130MHz), low

distortion (−62dBc), and exceptionally high output

current (approximately 75mA) at low cost and with

reduced power consumption when compared against

existing devices with similar performance.

(V_S= ±5V, T_A= 25°C, R_L= 2kΩ, A_V= +1. Typical

Values Unless Specified).

•

−3dB BW (A_V= +1) 130MHz

Supply Voltage Range 2.7V to 12.8V

Slew Rate ⁽¹⁾, (A_V= −1) 130V/µs

Input common mode voltage range extends to 0.5V

below V⁻and 1V from V⁺. Output voltage range

extends to within 40mV of either supply rail, allowing

wide dynamic range especially desirable in low

voltage applications. The output stage is capable of

approximately 75mA in order to drive heavy loads.

Fast output Slew Rate (130V/µs) ensures large peak-

to-peak output swings can be maintained even at

higher speeds, resulting in exceptional full power

bandwidth of 40MHz with a 3V supply. These

characteristics, along with low cost, are ideal features

Supply Current (no load) 2.7mA/amp

Output Short Circuit Current +115mA/−145mA

Linear Output Current ±75mA

Input Common Mode Volt. 0.5V Beyond V⁻, 1V

from V⁺

•

Output Voltage Swing 40mV from Rails

Input Voltage Noise (100kHz) 17nV/√Hz

Input Current Noise (100kHz) 0.9pA/√Hz

THD (5MHz, R_L= 2kΩ, V_O= 2V_PP, A_V= +2)

−62dBc

for

multitude of industrial and commercial

applications.

•

Settling Time 68ns

Careful attention has been paid to ensure device

stability under all operating voltages and modes. The

result is a very well behaved frequency response

characteristic (0.1dB gain flatness up the 12MHz

under 150Ω load and A_V= +2) with minimal peaking

(typically 2dB maximum) for any gain setting and

under both heavy and light loads. This along with fast

settling time (68ns) and low distortion allows the

device to operate well in ADC buffer, and high

frequency filter applications as well as other

applications.

Fully Characterized for 3V, 5V, and ±5V

Overdrive Recovery 100ns

(2)

Output Short Circuit Protected

No Output Phase Reversal with CMVR

Exceeded

APPLICATIONS

•

Active Filters

CD/DVD ROM

This device family offers professional quality video

performance with low DG (0.01%) and DP (0.01°)

characteristics. Differential Gain and Differential

Phase characteristics are also well maintained under

heavy loads (150Ω) and throughout the output

voltage range. The LMH664X family is offered in

single (LMH6642), dual (LMH6643), and quad

(LMH6644) options.

ADC Buffer Amp

Portable Video

Current Sense Buffer

(1) Slew rate is the average of the rising and falling slew rates.

(2) Output short circuit duration is infinite for V_S< 6V at room

temperature and below. For V_S> 6V, allowable short circuit

duration is 1.5ms.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...32

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LMH6643 替代型号

型号	品牌	替代类型	描述	数据表
LMH6612	TI	功能相似	单电源、双路 345MHz 轨到轨输出放大器和 PLC 线路驱动器
LM6142	TI	功能相似	LM6142/LM6144 17 MHz Rail-to-Rail Input-Output Operational Amplifiers
LMH6642	TI	功能相似	LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

与LMH6643相关器件

型号	品牌	获取价格	描述	数据表
LMH6643EP	NSC	获取价格	Enhanced Plastic Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MA	NSC	获取价格	3V, Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MA	TI	获取价格	LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MA/NOPB	TI	获取价格	双通道、低功耗、130MHz、75mA 轨到轨输出放大器 \| D \| 8 \| -40 to
LMH6643MAX	TI	获取价格	LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MAX	NSC	获取价格	3V, Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MAX/NOPB	TI	获取价格	Dual Channel, Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifier 8-SOIC -40 to 85
LMH6643MAXEP	NSC	获取价格	Enhanced Plastic Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers
LMH6643MAXEP/NOPB	TI	获取价格	1 CHANNEL, VIDEO AMPLIFIER, PDSO8, PLASTIC, SOIC-8
LMH6643MM	NSC	获取价格	3V, Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

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