Datasheet > L8403

L8403

更新时间： 2024-11-22 14:54:55

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
7页	274K
描述
4 stage fet lna bias controller

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L8403 数据手册

UNISONIC TECHNOLOGIES CO., LTD

L8403

LINEAR INTEGRATED CIRCUIT

4 STAGE FET LNA BIAS

CONTROLLER



DESCRIPTION

The UTC L8403 is an advanced GaAs and HEMT FETs bias

controller. It is designed to operate from minimal supply rails and

intended primarily for satellite Low Noise Blocks (LNBs).

The UTC L8403 provides drain voltage and current control for

up to 4 external grounded source FETs with the addition of one

capacitor and two resistors.

The UTC L8403 is generating the regulated negative rail

required for FET gate biasing whilst operating from a single

supply of 2.1V to 5V.

The -2V negative bias can also be used to supply other

external circuits. The UTC L8403 uses two resistors to split

control between two pairs of FETs and set drain currents. This

allows the operating current of input FETs to be adjusted to

minimize noise, whilst the following FET stages can separately be

adjusted for maximum gain.



FEATURES

* Provides Bias for up to 4 GaAs and HEMT FETs

* Operating Range of 2.1V to 5V

* Ultra-low Operating Current of 0.95mA

* Dynamic FET Protection

* Amplifier FET Drain Voltages set at 2.0V

* Regulated Negative Rail Generator Requires only 1 External

Capacitor

* Expended Temperature Range of -40°C to +105°C



ORDERING INFORMATION

Ordering Number

Package

QFN-16(3×3)

Packing

Lead Free

Halogen Free

L8403G-Q16-3030-R

L8403L-Q16-3030-R

Tape Reel

www.unisonic.com.tw

1 of 7

QW-R123-025.B

12 3 4 5 6 7

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