Datasheet > VCA2618YR

VCA2618YR

更新时间： 2024-11-01 22:16:15

品牌	Logo	应用领域
BB		放大器
页数	文件大小	规格书
14页	324K
描述
Dual, VARIABLE GAIN AMPLIFIER with Input Buffer

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VCA2618YR 数据手册

VCA2618

SBOS254B – JULY 2002 – REVISED NOVEMBER 2003

Dual, VARIABLE GAIN AMPLIFIER

with Input Buffer

FEATURES

z GAIN RANGE: up to 43dB

DESCRIPTION

The VCA2618 is a highly integrated, dual receive channel,

Variable Gain Amplifier (VGA) with analog gain control.

z 30MHz BANDWIDTH

The VCA2618’s VGA section consists of two parts: the Volt-

age Controlled Attenuator (VCA) and the Programmable Gain

Amplifier (PGA). The gain and gain range of the PGA can be

digitally programmed. The combination of these two program-

mable elements results in a variable gain ranging from 0dB up

to a maximum gain as defined by the user through external

connections. The single-ended unity gain input buffer provides

predictable high input impedance. The output of the VGA can

be used in either a single-ended or differential mode to drive

high-performance Analog-to-Digital (A/D) converters. A sepa-

rate power-down pin reduces power consumption.

z LOW CROSSTALK: 65dB at Max Gain, 5MHz

z HIGH-SPEED VARIABLE GAIN ADJUST

z POWER SHUTDOWN MODE

z HIGH IMPEDANCE INPUT BUFFER

APPLICATIONS

z ULTRASOUND SYSTEMS

z WIRELESS RECEIVERS

z TEST EQUIPMENT

z RADAR

The VCA2618 also features low crosstalk and outstanding

distortion performance. The combination of low noise

and gain range programmability make the VCA2618 a versa-

tile building block in a number of applications where

noise performance is critical. The VCA2618 is available in a

TQFP-32 package.

C_P2A

C_P1A

VCA2618

(1 of 2 Channels)

N_OUTA

Voltage

Control

Attenuator

Programmable

Gain Amplifier

Buffer

IN_A

P_OUTA

MGS₁

Maximum

Gain Select

Analog

Control

Maximum Gain

Select

MGS₂

VCA_CNTL

MGS₃

N_OUTB

Voltage

Control

Attenuator

Programmable

Gain Amplifier

Buffer

IN_B

P_OUTB

C_P2B

C_P1B

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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与VCA2618YR相关器件

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VCA2618YT	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Input Buffer
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VCA2619YR	BB	获取价格	Dual, Variable Gain Amplifier with Input Buffer
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VCA3-A0B-25M00	VECTRON	获取价格	3.3, 5.0 volt CMOS Oscillator
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