Datasheet > LTC6563

LTC6563

更新时间： 2024-10-03 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
35页	5235K
描述
提供输出复用的四通道跨阻放大器

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LTC6563 数据手册

LTC6563

Four-Channel

Transimpedance Amplifier

with Output Multiplexing

DESCRIPTION

FEATURES

The LTC^®6563 is a low-noise four-channel transimpedance

amplifier (TIA) with 600MHz bandwidth. The LTC6563

TIA’s low noise, wide linear range, and low power dissipa-

tion are ideal for LIDAR receivers using Avalanche photo-

diodes (APDs) and photodiodes (PDs). The amplifier fea-

tures selectable 22.2/16.7/11.1/5.55kΩ Transimpedance

gain (RT) and 90µA linear input current range. Using an

APD with a total input capacitance of 0.5pF, the input cur-

rent noise density is 1.8pA/√Hz at 100MHz and 3.7pA/√Hz

at 600MHz. The LTC6563 consumes between 194mW and

325mW on a 3.3V supply depending on output mode.

An internal 4-to-1 MUX simplifies the system design. In

addition, external multiplexing capability allows channel

expansion up to 64 channels, saving space and power.

Fast overload recovery and fast channel switchover make

the LTC6563 well suited for LIDAR receivers with multiple

APDs. The built-in high-speed differential ADC driver can

600MHz –3dB Bandwidth with 0.5pF Input Capacitance

Differential Output with Up to 2V Swing into 100Ω

P-P

Differential Load

Built-In High-Speed ADC Driver with Output MUX

Selectable 22.2/16.7/11.1/5.55kΩ Transimpedance Gain

1.8pA/3.7pA√Hz Input Current Noise Density

100MHz/600MHz (0.5pF)

65nA

Integrated Input-Referred Current Noise

RMS

Over 600MHz (0.5pF)

Large Linear Input Current Range 0µA to 90µA

Large Transient Overload Current >1A Peak

Fast Overload Recovery: 2.5ns

Fast Channel Switching: 10ns

Power Dissipation: 194mW to 325mW on 3.3V,

Varies with Output Mode (13mW in Shutdown)

Output MUX allows multiple LTC6563s to Create 8,

12, 16 … 32 Channel Solutions

3mm × 5mm, 24-Lead QFN Package, Wettable Flanks

AECQ-100 Grade 1 Qualified

swing as much as 2V while driving into 100Ω external

P-P

differential load.

The LTC6563 is packaged in a 3mm × 5mm 24-pin

exposed pad QFN package with wettable flanks.

All registered trademarks and trademarks are the property of their respective owners.

APPLICATIONS

Automotive LIDAR Receiver

Industrial LIDAR Receiver

TYPICAL APPLICATION

Typical Application with DC-Coupled Inputs Driving an ADC

OMUX(2)

MULTIPLE LTC6563's

3.3V 3.3V 3.3V

OUT(2)

OFFSET VCCI VCCO

TILT

OMUX

PWRMD LTC6563

BIAS

CTRL

Pulse Response

TERM(2)

OUT

IN1

IN2

IN3

IN4

100Ω

TIA

TERM

0.1µF

INPUT

50Ω

AD9094

TERM(2)

OUT(2)

20µA/DIV

TIA

OUTPUT

STAGE

4:1

MUX

CTRL

50Ω

OUT

DIFF

250mV/DIV

100Ω

TERM

TIA

OUT

OUTPUT

CLAMPS

TIA

APD

ARRAY

6563 TA01b

1ns/DIV

–

×1

×2

GND

CHSEL1

CHSEL0 ADJ1

ADJ0 HI

6563 TA01a

0.1µF

–

Rev. A

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