Maxim MAX4111CSA, MAX4221CSA Datasheet

_______________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:

________________________Applications

Video-Router and Crosspoint Arrays
Broadcast/HDTV-Quality Color Signal Multiplexing
RF and IF Routing
Graphics Color-Signal Routing
Telecom Routing
Data Acquisition

____________________________Features

♦ -3dB Bandwidth of 330MHz
♦ 0.1dB Gain Flatness of 150MHz
♦ 700V/µs Slew Rate
♦ 0.01°/0.01% Differential Phase/Gain
♦ Low Power: 5.5mA Max
♦ -92dB Crosstalk and -78dB Off Isolation at 30MHz
♦ High-Z Outputs when Disabled
♦ 3pF Input Capacitance
♦ Ultra-Low Switching Glitch
♦ On-Board Control Logic

MAX4111/MAX4121/MAX4221

330MHz Buffered Video Switches/

Crosspoint Building Blocks

________________________________________________________________

Maxim Integrated Products

1

1

2

3

4

8

7

6

5

EN
V

CC

OUT

V

EE

N.C.

GND

IN

GND

MAX4111

TOP VIEW

SO

16
15
14
13
12
11
10

9

1
2
3
4
5
6
7
8

SEL0
SEL1
V

CC

OUT0

GND

IN1

GND

IN0

MAX4221

V

EE

OUT1
SEL2
SEL3

IN3

GND

IN2

GND



Narrow SO

1

2

3

4

8

7

6

5

EN
V

CC

OUT

V

EE

IN1

GND

IN0

A0

MAX4121

SO

___________________________________Pin Configurations/Functional Diagrams

Call toll free 1-800-998-8800 for free samples or literature.

19-0402; Rev 0; 6/95

PART

MAX4111CSA
MAX4121CSA
MAX4221CSE

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

8 SO
8 SO
16 Narrow SO

EVALUATION KIT

AVAILABLE

______________Ordering Information

PART DESCRIPTION PINS

MAX4111 SPST, single-input, single-output switch 8
MAX4121 SPDT, 2-input, single-output switch 8
MAX4221 Dual, SPDT, 2-input, single-output switch 16

MAX4111/MAX4121/MAX4221

330MHz Buffered Video Switches/
Crosspoint Building Blocks

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VS= ±5V, -2.5V ≤ VIN≤ +2.5V, RL= 5kΩ, CL≤ 5pF, TA= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltages

V

CC

....................................................................................+6V

V

EE

......................................................................................-6V

V

CC-VEE

...........................................................................+12V

Analog Input Voltage .......................(V

EE

- 0.3V) to (VCC+ 0.3V)

Digital Input Voltage...................................-0.3V to (V

CC

+ 0.3V)

Duration of Short Circuit to Ground............................Continuous

Continuous Power Dissipation (T

A

= +70°C)

8-Pin SO (derate 5.88mW/°C above +70°C)................471mW

16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW

Operating Temperature Range...............................0°C to +70°C

Storage Temperature Range.............................-65°C to +160°C

Junction Temperature......................................................+150°C

Lead Temperature (soldering, 10sec).............................+300°C

VS= ±4.5V to ±5.5V

VS= ±4.5V to ±5.5V

Channel selected

V

OUT

= 0V

f = DC to 50MHz

VIN= ±2.5V

V

VS= ±4.5V to ±5.5V

VS= ±4.5V to ±5.5V

Channel disabled

TA= T

MIN

to T

MAX

Channel selected

VIN= 0V

Per channel

TA= +25°C

VS= ±4.5V to ±5.5V

VIN= 0V, channel enabled or disabled

CONDITIONS

V0.8V

INL

Logic Input Low Voltage

V2.0V

INH

Logic Input High Voltage

pF5C

OUT(OFF)

Disabled Output Capacitance

MΩ30R

OUT(OFF)

Disabled Output Resistance

nA10I

OUT(OFF)

Disabled Output Current

Ω20R

OUT

Output Resistance

V/V

0.97 1.0

A

V

Voltage Gain

0.98 1.0TA= +25°C

dB50PSRRPower-Supply Rejection Ratio

TA= T

MIN

to T

MAX

µA

mV

±15

V

OS

Output Offset Voltage

±5 ±10

10I

INL

pFC

IN

Input Capacitance

4.0 5.5TA= +25°C

TA= T

MIN

to T

MAX

±4.5 ±5.0 ±5.5V

S

3

Operating Supply Voltage

Logic Input Low Current

µA

MΩ

100

R

IN

Input Resistance

0.4

10I

INH

µA

±0.02

I

B

Input Bias Current

6.5

150 200

V±2.5V

IN

Input Voltage Range

±2.5 ±4.0

Channel disabled

Logic Input High Current

UNITSMIN TYP MAXSYMBOLPARAMETER

mAI

CC, IEE

Operating Supply Current

MAX4111/MAX4121

µA

250 350

I

CC, IEE

Disabled Supply Current

DC PARAMETERS

MAX4221

dB

MAX4111/MAX4121/MAX4221

330MHz Buffered Video Switches/

Crosspoint Building Blocks

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS

(VS= ±5V, -2.5V ≤ VIN≤ +2.5V, RL= 5kΩ, CL≤ 5pF, TA= 0°C to +70°C, unless otherwise noted. Typical values are at TA= +25°C.)

Note 1: Full-Power Bandwidth is inferred from Slew Rate (SR) testing by the equation SR = ωEP, where EPis the peak output

voltage and ω =2πf.

Note 2: Differential Gain and Phase are tested using a modulated ramp, 100IRE (0.714V).

VIN= 1.4Vp-p

f = 30MHz, VIN= 1.4Vp-p

f = 30MHz, VIN= 1.4Vp-p

V

OUT

= 5Vp-p

Chip-to-chip, f = 3.58MHz

f = 3.58MHz

VIN= 5Vp-p
VIN= 0.1Vp-p
DC to 30MHz
DC to 150MHz

f = 3.58MHz

CONDITIONS

dBc-70Third Harmonic

dBc-65Second Harmonic

degrees±0.2Input-Output Delay Matching

ps860Group Delay

mVp-p13Switching Transient

ns500t

ON

Channel Switching On Time

µs1.0t

OFF

Channel Switching Off Time

-92

degrees0.01DPDifferential Phase (Note 2)

110

700

%0.01DGDifferential Gain (Note 2)

dB0.08Gain Peaking

MHz

45

FPBW

Full-Power Bandwidth
(Note 1)

MHz330f

3dB

-3dB Bandwidth

0.02
dB

0.1

Gain Flatness

UNITSMIN TYP MAXSYMBOLPARAMETER

VIN= 1Vp-p,
f = 30MHz

dB

-70

All-Hostile Crosstalk

VIN= 1Vp-p,
f = 30MHz, see test
circuit

dB

86

Off Isolation

MAX4121
MAX4221
MAX4111

V

OUT

= 1.4Vp-p

V/µs

500

SRSlew Rate

VIN= 0.1Vp-p ps950tr/t

f

Small-Signal Rise Time

MAX4121

84MAX4221

78

AC PARAMETERS

MAX4111/MAX4121/MAX4221

330MHz Buffered Video Switches/
Crosspoint Building Blocks

4 _______________________________________________________________________________________

__________________________________________Typical Operating Characteristics

(VS= ±5V, RL= 5kΩ, CL≤ 5pF, TA = +25°C, unless otherwise noted.)

-2

1 10 1000



GAIN vs. FREQUENCY

-10

-6

0

2

-8

-4

-12

-16

-18

-14

MAX4111 TOC-01

FREQUENCY (MHz)

GAIN (dB)

100

-0.1

1 10 100



GAIN FLATNESS

-0.3

0

-0.4

-0.2

-0.6

-0.7

-0.5

0.1

0.2

0.3

MAX4111 TOC-02

FREQUENCY (MHz)

GAIN (dB)

1000

0.1 1 100 500



OUTPUT RESISTANCE vs. FREQUENCY

40

10

0

20

30

MAX4111 TOC-03

FREQUENCY (MHz)

OUTPUT RESISTANCE (Ω)

10

0

10k 100k 10M 100M

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

40

20

-10

30

10

50
60

70
80
90

MAX4111 TOC-04

FREQUENCY (Hz)

AMPLITUDE (dB)

1M

V

CC

V

EE

-40

1 100 1000

MAX4111

OFF ISOLATION vs. FREQUENCY

40

0

20

-20

60

140
160

100
120

80

MAX4111 TOC-07

FREQUENCY (MHz)

AMPLITUDE (dB)

10

40

1 100 1000

MAX4121 ALL-HOSTILE CROSSTALK

vs. FREQUENCY

-40

0

-20

20

-60

-140

-160

-100

-120

-80

MAX4111 TOC-05

FREQUENCY (MHz)

AMPLITUDE (dB)

10

40

1 10 1000

MAX4221 ALL-HOSTILE CROSSTALK

vs. FREQUENCY

-40

0

60

-20

20

-60

-140

-100

-120

-80

MAX4111 TOC-06

FREQUENCY (MHz)

AMPLITUDE (dB)

100

-40

1 100 1000

MAX4121

OFF ISOLATION vs. FREQUENCY

40

0

20

-20

60

140
160

100
120

80

MAX4111 TOC-08

FREQUENCY (MHz)

AMPLITUDE (dB)

10

-40

1 10 1000

MAX4221

OFF ISOLATION vs. FREQUENCY

40

0

-60

20

-20

60

140

100
120

80

MAX4111 TOC-09

FREQUENCY (MHz)

AMPLITUDE (dB)

100