Datasheet > EL6261C

EL6261C

更新时间： 2022-11-24 21:45:41

品牌	Logo	应用领域
ELANTEC		放大器
页数	文件大小	规格书
2页	44K
描述
Quad 20MHz Quad, 80MHz, Switched Gain Pre-Amp

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EL6261C 数据手册

EL6261C Product Brief

Quad 20MHz & Quad, 80MHz, Switched Gain Pre-Amp

Features

General Description

• Autozero of output offset to

<10mV

• 3 selectable gains; 8KΩ, 15KΩ,

40KΩ

• Space saving QSOP-24 package

The EL6261C consists of 4 20MHz trans-impedance amplifiers and 4

80MHz trans-impedance amplifiers. The four 80Mhz amplifier out-

puts also are averaged to provide differential 80MHz outputs.

The EL6261C is designed to amplify the photo diode currents for CD,

DVD, or other photo diode pick-up applications.

• Differential Sum & Sum-Bar

Two TTL/CMOS compatible inputs select the gain for all eight ampli-

fiers. The gain settings are 8KΩ, 15KΩ and 40KΩ for all channels.

The sum and sumbar outputs are 11KΩ, 20KΩ and 53KΩ single

ended. Gain matching is typically 3%, channel to channel. An auto-

zero input brought high after power up reduces the output offsets to

less than 10mV.

outputs

• Single 5V supply

Applications

• DVD RAM, R/W and ROM

• CD R/W, R and ROM

• MO drives

• Optical Pickup pre-amplifier

• Servo positioning systems

• High speed instrumentation

The E,F,G,H channel bandwidths are 20MHz for all gains and reason-

able input and output loads. The A,B,C,D,S,S channels have

bandwiths of 80MHz, 45MHz, and 25MHz at low, middle, and high

gains respectively.

Each amplifier output can sink or source up to 5mA, and their outputs

can swing 1Vp-p at full bandwidth.

Ordering Information

The EL6261C operates from a single +5V supply, and is available in

QSOP-24 package. It is specified for operation from -0°C to 70°C

Part No

Temp. Range

Package

Outline #

EL6261CU

0°C to +70°C

QSOP-24

MDP0040

Connection Diagram

Gain 0 Select

AZ Input

Sum Output

Gain 1 Select

Ref Input

A Input

Sum Output

A Output

B Output

C Output

D Output

B Input

C Input

D Input

0V (V_SS

)

+5V (V_DD

E Output

F Output

)

E Input

F Input

G Output

H Output

G Input

H Input

24-Pin QSOP

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these

specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

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