Maxim MAX469CWE, MAX469CPE, MAX469C-D, MAX468EWE, MAX468CWE Datasheet

19-0219; Rev 2; 6/94

EVALUATION KIT MANUAL

FOLLOWS DATA SHEET

RGB Video Switches and Buffers

_______________General Description

The MAX463–MAX470 series of two-channel,
triple/quad buffered video switches and video buffers
combines high-accuracy, unity-gain-stable amplifiers
with high-performance video switches. Fast switching
time and low differential gain and phase error make this
series of switches and buffers ideal for all video appli­cations. The devices are all specified for ±5V supply
operation with inputs and outputs as high as ±2.5V
when driving 150Ω loads (75Ω back-terminated cable).

Input capacitance is typically only 5pF, and channel-to­channel crosstalk is better than 60dB, accomplished by
surrounding all inputs with AC ground pins. The on­board amplifiers feature a 200V/µs slew rate (300V/µs
for AV= 2V/V amplifiers), and a bandwidth of 100MHz
(90MHz for AV= 2V/V buffers). Channel selection is
controlled by a single TTL-compatible input pin or by a
microprocessor interface, and channel switch time is
only 20ns.

For design flexibility, devices are offered with buffer­amplifier gains of 1V/V or 2V/V for 75Ω back-terminated
applications. Output amplifiers have a guaranteed out­put swing of ±2V into 75Ω.

Devices offered in this series are as follows:

PART DESCRIPTION

MAX463 Triple RGB Switch & Buffer 1
MAX464 Quad RGB Switch & Buffer 1
MAX465 Triple RGB Switch & Buffer 2
MAX466 Quad RGB Switch & Buffer 2
MAX467 Triple Video Buffer 1
MAX468 Quad Video Buffer 1
MAX469 Triple Video Buffer 2
MAX470 Quad Video Buffer 2

VOLTAGE GAIN

(V/V)

________________________Applications

Broadcast-Quality Color-Signal Multiplexing
RGB Multiplexing
RGB Color Video Overlay Editors
RGB Color Video Security Systems
RGB Medical Imaging
Coaxial-Cable Line Drivers

Two-Channel, Triple/Quad

____________________________Features

♦ 100MHz Unity-Gain Bandwidth
♦ 90MHz Bandwidth with 2V/V Gain
♦ 0.01%/0.03° Differential Gain/Phase Error
♦ Drives 50Ω and 75ΩBack-Terminated Cable Directly
♦ Wide Output Swing:

±2V into 75Ω
±2.5V into 150Ω

♦ 300V/µs Slew Rate (2V/V gain)
♦ 20ns Channel Switching Time
♦ Logic Disable Mode:

High-Z Outputs
Reduced Power Consumption

♦ Outputs May Be Paralleled for Larger Networks
♦ 5pF Input Capacitance (channel on or off)

______________Ordering Information

PART TEMP. RANGE PIN-PACKAGE

MAX463CNG

MAX463CWG 0°C to +70°C 24 Wide SO
MAX463C/D 0°C to +70°C Dice*
MAX463ENG 24 Narrow Plastic DIP
MAX463EWG -40°C to +85°C 24 Wide SO

Ordering Information continued on last page.

* Dice are specified at T

_________________Pin Configurations

TOP VIEW

IN0A

IN1A

IN2A

IN0B

IN1B

IN2B

0°C to +70°C 24 Narrow Plastic DIP

-40°C to +85°C

= +25°C, DC parameters only.

A

1

GND

GND

GND

GND

2
3
4
5

V-

6

V-

7
8

9
10
11
12

MAX463
MAX465

3P2T SWITCH

24

GND

23

LE

22

EN

21

A0

20

CS

19

V-

18

OUT0

17

V+

16

OUT1

15

GND

14

V+

13

OUT2

MAX463–MAX470

Typical Operating Circuit appears at end of data sheet.

________________________________________________________________

Pin Configurations continued at end of data sheet.

DIP/SO

Maxim Integrated Products

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

1

Two-Channel, Triple/Quad
RGB Video Switches and Buffers

ABSOLUTE MAXIMUM RATINGS

Power-Supply Ranges

V+ to V- ................................................................................12V

Analog Input Voltage..........................(V- - 0.3V) to (V+ + 0.3V)

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

Output Short-Circuit Duration (to GND)........................1 Minute

Input Current into Any Pin, Power On or Off...................±50mA

Continuous Power Dissipation (T

16-Pin Plastic DIP (derate 22.22mW/°C above +70°C)....1778mW

16-Pin Wide SO (derate 20.00mW/°C above +70°C) .......1600mW

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.

= +70°C)

A

ELECTRICAL CHARACTERISTICS

(V+ = 5V, V- = -5V, -2V ≤ VIN≤ +2V, R

MAX463–MAX470

PARAMETER SYMBOL UNITS

Operating Supply Voltage V
Input Voltage Range
Offset Voltage V
Power-Supply Rejection Ratio PSRR 50 60 dB

On Input Bias Current I
On Input Resistance R
Input Capacitance C

Voltage-Gain Accuracy

Output Voltage Swing V

Output Impedance R

Output Resistance,
Disabled Mode

Output Capacitance,
Disabled Mode

Positive Supply Current I+

R

C

= 75Ω, unless otherwise noted.)

LOAD

CONDITIONS

S

V

IN

OS

BIAS

IN

Channel off or on

IN

MAX463/MAX464, MAX467/MAX468
(Note 1)

MAX465/MAX466, MAX469/MAX470,
R

= 150Ω, (Note 2)

LOAD

R

= 150Ω

OUT

OUT

OUTD

OUTD

LOAD

R

= 75Ω

LOAD

fIN= 10MHz

fIN= DC

MAX463/MAX464
MAX465/MAX466

MAX463–MAX466
MAX463/MAX465/MAX467/MAX469,

VIN= 0V
MAX464/MAX466/MAX468/MAX470,

VIN= 0V
MAX463/MAX465, disabled mode
MAX464/MAX466, disabled mode

24-Pin Narrow Plastic DIP

(derate 20.2mW/°C above +70°C)..................................1620mW

24-Pin Wide SO (derate 19.3mW/°C above +70°C) .........1590mW

28-Pin Narrow Plastic DIP

(derate 20.2mW/°C above +70°C)..................................1620mW

28-Pin Wide SO (derate 18.1mW/°C above +70°C) .........1440mW

Operating Temperature Ranges

MAX4_ _C_ _.........................................................0°C to +70°C

MAX4_ _E_ _......................................................-40°C to +85°C

Storage Temperature Range.............................-65°C to +150°C

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

MAX463/MAX464,
MAX467/MAX468

MAX465/MAX466,
MAX469/MAX470

TA= +25°C

MIN TYP MAX

±4.75 ±5 ±5.25 V

-2 2 V
±3 ±10 mV±15

±1 ±3 µA

300 700 kΩ

5 pF

0.2 0.5

0.3 1.0

±2.5 ±2.8
±2.0 ±2.4

5

0.05

0.1

150 250 kΩ

0.7 1 kΩ
10 pF

65 80

85 100
35 45

40 50

TA= T

to T

MIN

MIN MAX

±4.75 ±5.25

-2 2

50

150

±2.5

-1.5/+2

100

0.7

MAX

±5

1.0

2.0

100

120

50
55

%

V

Ω

mA

2 _______________________________________________________________________________________

Two-Channel, Triple/Quad

RGB Video Switches and Buffers

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 5V, V- = -5V, -2V ≤ VIN≤ +2V, R

PARAMETER

Negative Supply Current

Input Noise Density en 20 nV/√–H—z

-3dB Bandwidth BW

Differential Gain Error
(Note 3)

Differential Phase Error
(Note 3)

Settling Time to 0.1%
Adjacent Channel Crosstalk

(Note 4)
All-Hostile Crosstalk (Note 5) XTALK 50 dB

All-Hostile Off Isolation (Note 6)
Channel Switching

Propagation Delay (Note 7)
Channel Switching Time

(Note 8)
Switching Transient 300 mV
Amplifier Switching Off-Time

(Note 9)
Amplifier Switching On-Time

(Note 10)
Logic Input High Threshold V
Logic Input Low Threshold V
Logic Input Current High I
Logic Input Current Low I

SYMBOL

XTALK

= 75Ω, unless otherwise noted.)

LOAD

CONDITIONS

MAX463/MAX465/MAX467/MAX469,
VIN= 0V

MAX464/MAX466/MAX468/MAX470,

I-

VIN= 0V
MAX463/MAX465, disabled mode
MAX464/MAX466, disabled mode
fIN= 10kHz
MAX463/MAX464, MAX467/MAX468

SR

MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468
MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468

DG

MAX465/MAX466, MAX469/MAX470
MAX463/MAX464, MAX467/MAX468

DP

MAX465/MAX466, MAX469/MAX470

t

VIN= 2V-to-0V step

S

fIN= 10MHz
fIN= 10MHz

ISO

fIN= 10MHz, MAX463–MAX466

t

MAX463–MAX466

PD

t

MAX463–MAX466

SW

V

= V

INA

t

MAX463–MAX466

OFF

t

ON

E—N–, A0, C—S–, LE; MAX463–MAX466

IH

E—N–, A0, C—S–, LE; MAX463–MAX466

IL

INHI

INLO

= 0V, MAX463–MAX466

INB

TA= +25°C

MIN TYP MAX

50 65

65 80
20 30

25 35

200
300
100

90

0.01

0.12

0.03

0.14
50 ns

60

70
15 ns

20 ns

80 ns

100 nsMAX463–MAX466

0.8 V

TA= T

2 V

200 µAE—N–, A0, C—S–, LE; MAX463–MAX466 200
200 µAE—N–, A0, C—S–, LE; MAX463–MAX466 200

to T

MIN

MIN MAX

75

95

35
40

2

0.8

MAX

UNITS

V/µsSlew Rate

MHz

deg.

MAX463–MAX470

mA

%

dB

dB

P-P

_______________________________________________________________________________________ 3

Two-Channel, Triple/Quad
RGB Video Switches and Buffers

ELECTRICAL CHARACTERISTICS (continued)

(V+ = 5V, V- = -5V, -2V ≤ VIN≤ +2V, R

PARAMETER

SYMBOL UNITS

Address Setup Time (Note 11) t
Address Hold Time (Note 11) t
C—S–Pulse Width Low (Note 11) t

Note 1: Voltage gain accuracy for the unity-gain devices is defined as [(V
Note 2: Voltage gain accuracy for the gain-of-two devices is defined as [(V
Note 3: Tested with a 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0IRE to 100IRE), R
Note 4: Tested with the selected input connected to ground through a 75Ω resistor, and a 4V
Note 5: Tested in the same manner as described in Note 4, but with all other inputs driven.
Note 6: Tested with LE = 0V, E—N–= V+, and all inputs driven with a 4V
Note 7: Measured from a channel switch command to measurable activity at the output.
Note 8: Measured from where the output begins to move to the point where it is well defined.
Note 9: Measured from a disable command to amplifier in a non-driving state.

MAX463–MAX470

Note 10: Measured from an enable command to the point where the output reaches 90% current out.
Note 11: Guaranteed by design.

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

= 75Ω, unless otherwise noted.)

LOAD

CONDITIONS

SU

H

CS

MIN TYP MAX

30 nsE—N–, A0, C—S–, LE; MAX463–MAX466 30

15 nsE—N–, A0, C—S–, LE; MAX463–MAX466 15

- VIN) at VIN= 1V - (V

OUT

/2 - VIN) at VIN= 1V - (V

OUT

, 10MHz sine wave.

P-P

T

A

= +25°C

TA= T

to T

MIN

MIN MAX

MAX

0 nsE—N–, A0, C—S–, LE; MAX463–MAX466 0

- VIN) at VIN= -1V]/2.

OUT

/2 - VIN) at VIN= -1V]/2.

OUT

= 150Ω to ground.

sine wave at 10MHz driving adjacent input.

P-P

L

GAIN AND PHASE RESPONSES

2

1

0

GAIN (dB)

–1

–2

–3

10k 100k

FREQUENCY (Hz)

MAX468

GAIN

PHASE

1M 100M

10M

MAX463/470 -01

0
36
72
108
144

PHASE (DEGREES)

180

OUTPUT IMPEDANCE

100

Ω

10

1

OUTPUT IMPEDANCE ( )

0.1

0.01

vs. FREQUENCY

FREQUENCY (Hz)

MAX464

1M 100M

10M10k

MAX463/470 -02

1G100k

POWER-SUPPLY REJECTION RATIO

60

50

40

PSRR (dB)

30

20

10

1k 100k

vs. FREQUENCY

FREQUENCY (Hz)

4 _______________________________________________________________________________________

MAX468

1M 100M

MAX463/470 -03

V–

V+

10M10k

Two-Channel, Triple/Quad

RGB Video Switches and Buffers

____________________________Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

VOLTAGE GAIN ACCURACY

0.16

0.14

0.12

0.10

PERCENTAGE (%)

0.08

0.06

30

25

20

15

10

5

SUPPLY CURRENT PER AMPLIFIER (mA)

0

–50

vs. TEMPERATURE

MAX465

MAX463

–25 0 5025 75–50

TEMPERATURE (°C)

SUPPLY CURRENT PER AMPLIFIER

vs. TEMPERATURE

I+

I–

–25 0 50

25 75

TEMPERATURE (°C)

MAX463/470 -04

100

MAX463/470 -09

100

DISABLED OUTPUT RESISTANCE

vs. TEMPERATURE

400

350

300

250

OUTPUT RESISTANCE (kΩ)

200

–25 0 5025 75–50

TEMPERATURE (°C)

DISABLED SUPPLY CURRENT

40

35

30

25

20

SUPPLY CURRENT (mA)

15

10

–50

vs. TEMPERATURE

I+

I–

–25 0 50

TEMPERATURE (°C)

MAX463

25 75

MAX463/470 -05

100

MAX463/470 -07

100

DISABLED OUTPUT RESISTANCE

1.30

1.25

1.20

1.15

OUTPUT RESISTANCE (kΩ)

1.10

4
3
2
1
0

–1

OUTPUT VOLTAGE (V)

–2
–3
–4

10 100

MAX465

vs. TEMPERATURE

–25 0 5025 75–50

TEMPERATURE (°C)

OUTPUT VOLTAGE SWING

vs. LOAD RESISTANCE

MAX463/4/7/8:VIN = 4V
MAX465/6/9/70:V

LOAD RESISTANCE ( )

1000 10000

= 2V

IN

Ω

MAX463–MAX470

MAX463/470 -06

100

MAX463/470 -08

_______________________________________________________________________________________

5