MAX498CWI+

更新时间： 2024-02-17 14:06:53

品牌	Logo	应用领域
美信 - MAXIM		开关缓冲放大器光电二极管
页数	文件大小	规格书
16页	156K
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数据手册

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MAX498CWI+ 数据手册

19-1143; Rev 0; 10/96

Qu a d /Trip le , S P DT, RGB S w it c h e s

w it h 2 5 0 MHz Vid e o Bu ffe r Am p lifie rs

8/MAX49

_______________Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

The MAX498/MAX499 are high-speed, quad/triple, sin-

gle-pole/double-throw video switches with on-board

closed-loop buffer amplifiers. The buffer amplifiers fea-

♦ High Speed:

250MHz Small-Signal -3dB Bandwidth

135MHz Full-Power -3dB Bandwidth

ture +6dB gain (A

= 2V/V), 250MHz -3dB band-

VCL

♦ 70MHz 0.1dB Gain Flatness

width, 70MHz 0.1dB gain flatness, and 1250V/µs slew

rate. Fast switching time (3ns) and fast settling time

(12ns for a 4V s te p ) ma ke the s e d e vic e s e xc e lle nt

choices for a wide variety of video applications. The low

differential gain/phase errors (0.03%/0.06°) and wide

bandwidth make them ideal for both composite-video

and RGB applications. The amplifiers are capable of

d e live ring ± 2.5V into b a c k-te rmina te d 50Ω or 75Ω

cables, and they deliver ±2V to a 75Ω load, allowing

multiple cables to be driven from a single output.

♦ 1250V/µs Slew Rate

♦ 12ns to 0.1% Settling Time

♦ 0.03°/0.06% Differential Phase/Gain Error

♦ 2pF Input Capacitance

♦ 3ns Channel-Switching Time

♦ 120mVp-p Channel-Switching Transient

♦ Three-State Output Allows Large Switch Arrays

For implementation of large switch arrays, a low-power

disable mode places the amplifier outputs in a high-

imp e d a nc e s ta te . Cha nne l s e le c tion a nd outp ut

e na b le /d is a b le a re c ontrolle d b y four TTL/CMOS-

compatible logic inputs. Each video input is isolated by

an AC-ground pin, which minimizes channel-to-channel

capacitance and reduces crosstalk to 90dB at 10MHz.

♦ Directly Drives 50Ω or 75Ω Back-Terminated

Cables

______________Ord e rin g In fo rm a t io n

The four-channel MAX498 dissipates 390mW (typical)

from ±5VDC power supplies with all output buffers

enabled. Power consumption is reduced to 130mW with

all buffers disabled. The corresponding dissipation for

the thre e -c ha nne l MAX499 is 300mW e na b le d a nd

100mW disabled.

PART

TEMP. RANGE

0°C to +70°C

PIN-PACKAGE

28 SO

MAX498CWI

MAX499CWG

24 SO

________________________Ap p lic a t io n s

_________________P in Co n fig u ra t io n s

Video Switching and Routing

Broadcast-Quality Composite-Video Multiplexing

Workstations

TOP VIEW

24 GND

IN1A

GND

IN2A

GND

Video Editing

Broadcast and High-Definition TV Systems

Multimedia Products

MAX499

IN3A

Medical Imaging

OUT1

IN1B

GND

OUT2

N.C.

IN2B 10

GND 11

OUT3

IN3B

13 N.C.

MAX498 appears at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

12 3 4 5 6 7...16

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与MAX498CWI+相关器件

型号	品牌	获取价格	描述	数据表
MAX498CWI-T	ROCHESTER	获取价格	QUAD 1-CHANNEL, AUDIO/VIDEO SWITCH, PDSO28, 0.300 INCH, SOP-28
MAX498EVKIT	MAXIM	获取价格	Dual-Channel CardBus and PCMCIA VCC VPP Power Switching Networks[MAX1600/MAX1603/MAX1600EA
MAX499	MAXIM	获取价格	Quad/Triple, SPDT, RGB Switches with 250MHz Video Buffer Amplifiers
MAX4990E	MAXIM	获取价格	High-Voltage, 【15kV ESD-Protected Electrolumi
MAX4990ETD+	MAXIM	获取价格	High-Voltage, 【15kV ESD-Protected Electrolumi
MAX4991	MAXIM	获取价格	Low RON, Dual-SPDT/Single-DPDT Analog Switches with Slow Turn-On Time
MAX49918	ADI	获取价格	Bidirectional, On-The-Fly Programmable Gain, Current-Sense Amplifier with Wide Measurement
MAX4991EVB+	MAXIM	获取价格	Low RON, Dual-SPDT/Single-DPDT Analog Switches with Slow Turn-On Time
MAX4992	MAXIM	获取价格	Low RON, Dual-SPDT/Single-DPDT Analog Switches with Slow Turn-On Time
MAX4992	ADI	获取价格	低RON、双SPDT/单DPDT模拟开关，具有低速导通时间

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