19-0402; Rev 0; 6/95
IT
K
ATION
EVALU
BLE
AVAILA
330MHz Buffered Video Switches/
Crosspoint Building Blocks
____________________________Features
PART
DESCRIPTION
o -3dB Bandwidth of 330MHz
o 0.1dB Gain Flatness of 150MHz
o 700V/µs Slew Rate
o 0.01°/0.01% Differential Phase/Gain
o Low Power: 5.5mA Max
o -92dB Crosstalk and -78dB Off Isolation at 30MHz
o High-Z Outputs when Disabled
o 3pF Input Capacitance
o Ultra-Low Switching Glitch
o On-Board Control Logic
PINS
MAX4111 SPST, single-input, single-output switch
8
MAX4221 Dual, SPDT, 2-input, single-output switch
______________Ordering Information
8
MAX4121 SPDT, 2-input, single-output switch
16
PART
Video-Router and Crosspoint Arrays
Broadcast/HDTV-Quality Color Signal Multiplexing
RF and IF Routing
Graphics Color-Signal Routing
Telecom Routing
Data Acquisition
0°C to +70°C
8 SO
MAX4121CSA
MAX4221CSE
________________________Applications
TEMP. RANGE
MAX4111CSA
PIN-PACKAGE
0°C to +70°C
0°C to +70°C
8 SO
16 Narrow SO
___________________________________Pin Configurations/Functional Diagrams
TOP VIEW
IN0 1
A0 1
GND 1
8
IN 2
7
8
VCC
GND 3
N.C. 4
6
MAX4111
SO
5
15 SEL1
IN1 3
EN
EN
16 SEL0
GND 2
14 VCC
GND 4
13 OUT0
12 VEE
IN0 2
OUT
VEE
7
VCC
GND 3
6
OUT
GND 5
IN1 4
5
VEE
IN2 6
11 OUT1
GND 7
10 SEL2
MAX4121
SO
IN3 8
9
SEL3
MAX4221
Narrow SO
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX4111/MAX4121/MAX4221
_______________General Description
The MAX4111/MAX4121/MAX4221 wideband video
switches are optimized for high-definition, broadcastquality, composite (HDTV, NTSC, PAL, SECAM, and
RGB) video switching arrays. Their open-loop buffer
amplifiers offer 0.1dB gain flatness to 150MHz. They
operate from ±5V supplies and feature differential
phase and gain error of only 0.01°/0.01%, respectively.
The ultra-low switching glitch (13mV) is positive to
avoid confusion with any sync pulse.
Ideal as building blocks in large arrays, these devices
feature a constant, high input impedance and a disable
function that puts the outputs into a high-impedance
state and reduces the operating current to only 250µA.
The open-loop architecture allows the outputs to drive
capacitive loads without oscillation. Other key features
include -92dB crosstalk and -78dB isolation (MAX4121).
The MAX4111/MAX4121/MAX4221 are offered in narrow plastic DIP and SO packages. See the table below
for key features:
