ELANT EL4444CS, EL4444CN, EL4443CS, EL4442CS, EL4442CN Datasheet

EL4421C/22C/41C/42C/43C/44C

Multiplexed-Input Video Amplifiers

EL4421C/22C/41C/42C/43C/44C January 1996 Rev C

Features

# Unity ora2-gain bandwidth of

80 MHz

# 70 dB off-channel isolation at

4 MHz

# Directly drives high-impedance

or 75X loads

# .02% and .02

differential gain

§

and phase errors

# 8 ns switching time

k

#

100 mV switching glitch

# 0.2% loaded gain error
# Compatible with

g

3V tog15V

supplies

# 160 mW maximum dissipation at

g

5V supplies

Ordering Information

Part No. Temp. Range Package Outline

EL4421CNb40§Ctoa85§C 8-Pin PDIP MDP0031
EL4421CS
EL4422CN
EL4422CS

EL4441CNb40§Ctoa85§C 14-Pin PDIP MDP0031
EL4441CS
EL4442CN
EL4442CS

EL4443CNb40§Ctoa85§C 14-Pin PDIP MDP0031
EL4443CS
EL4444CN
EL4444CS

b

40§Ctoa85§C 8-Pin SO MDP0027

b

40§Ctoa85§C 8-Pin PDIP MDP0031

b

40§Ctoa85§C 8-Pin SO MDP0027

b

40§Ctoa85§C 14-Pin SO MDP0027

b

40§Ctoa85§C 14-Pin PDIP MDP0031

b

40§Ctoa85§C 14-Pin SO MDP0027

b

40§Ctoa85§C 14-Pin SO MDP0027

b

40§Ctoa85§C 14-Pin PDIP MDP0031

b

40§Ctoa85§C 14-Pin SO MDP0027

General Description

The EL44XX family of video multiplexed-amplifiers offers a
very quick 8 ns switching time and low glitch along with very
low video distortion. The amplifiers have good gain accuracy
even when driving low-impedance loads. To save power, the am­plifiers do not require heavy loading to remain stable.

The EL4421 and EL4422 are two-input multiplexed amplifiers.
The -inputs of the input stages are wired together and the de­vice can be used as a pin-compatible upgrade from the
MAX453.

The EL4441 and EL4442 have four inputs, also with common
feedback. These may be used as upgrades of the MAX454.

The EL4443 and EL4444 are also 4-input multiplexed amplifi­ers, but both positive and negative inputs are wired separately.
A wide variety of gain- and phase-switching circuits can be built
using independent feedback paths for each channel.

The EL4421, EL4441, and EL4443 are internally compensated
for unity-gain operation. The EL4422, EL4442, and EL4444 are
compensated for gains of
ing back-matched cables.

The amplifiers have an operational temperature of

a

85§C and are packaged in plastic 8- and 14-pin DIP and 8- and

14-pin SO.

The EL44XX multiplexed-amplifier family is fabricated with
Elantec’s proprietary complementary bipolar process which
gives excellent signal symmetry and is very rugged.

a

2 or more, especially useful for driv-

b

40§Cto

Connection Diagrams

EL4421/EL4422

4421– 1

Manufactured under U.S. Patent No. 5,352,987

Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a ‘‘controlled document’’. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.

©

1994 Elantec, Inc.

EL4441/EL4442

4421– 2

EL4443/EL4444

4421– 3

EL4421C/22C/41C/42C/43C/44C

Multiplexed-Input Video Amplifiers

Absolute Maximum Ratings

a

V
V

S

V

IN

DV

Important Note:
All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually
performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test
equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefore T

Test Level Test Procedure

Positive Supply Voltage 16.5V
Vato VbSupply Voltage 33V
Voltage at any Input or Feedback Vato V
Difference between Pairs of

IN

Inputs or Feedback 6V

I 100% production tested and QA sample tested per QA test plan QCX0002.

II 100% production tested at T

III QA sample tested per QA test plan QCX0002.
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.

V Parameter is typical value at T

T

MAX

and T

per QA test plan QCX0002.

MIN

e

25§C and QA sample tested at T

A

e

25§C for information purposes only.

A

V

LOGIC

I

IN

b

I

OUT

P

D

Voltage at A0 or A1
Current into any Input, 4 mA
Feedback, or Logic Pin
Output Current 30 mA
Maximum Power Dissipation See Curves

J

e

25§C,

A

b

4V to 6V

e

e

T

TA.

C

Open-Loop DC Electrical Characteristics

Power supplies atg5V, T

e

25§C, R

A

Parameter Description Min Typ Max

V

OS

I

B

Input Offset VoltageÊ21,Ê41, andÊ43

Input Bias Current, Positive Inputs Only
of the

21,Ê22,Ê41,Ê42, and All Inputs of

Ê

theÊ43 andÊ44

I

FB

I

OS

E

G

A

VOL

V

IN

Input Bias Currents of Common Feedback

Input Offset Currents of theÊ43 andÊ44 60 350 I nA

Gain Error of theÊ21 andÊ41 andÊ43 0.2 0.6 I %

Open-Loop Gain EL4443 350 500 I V/V
(Note 1) EL4444 500 750 I V/V

Input Signal Range, EL4421 and EL4441
(Note 2)

CMRR Common-Mode Rejection Ratio, EL4443 70 90 I dB

and EL4444

PSRR Power Supply Rejection Ratio

V

fromg5V tog15V

s

e

500X, unless otherwise specified

L

b

9

22,Ê42, andÊ44

Ê

b

21 andÊ22

Ê

b

41 andÊ42

Ê

22,Ê42 andÊ44(Note 1) 0.1 0.6 I V/V

Ê

b

7

b

12

b

24

b

48

g

2.5

g

39 I

g

27 I

b

50 I mA

b

10 0 I mA

b

20 0 I mA

g

3IV

60 70 I dB

Test

Level

Units

mV

TDis 3.3in

2

EL4421C/22C/41C/42C/43C/44C

Multiplexed-Input Video Amplifiers

Open-Loop DC Electrical Characteristics

Power supplies atg5V, T

Parameter Description Min Typ Max

CMIR Common-Mode Input Range

V

OUT

I

SC

F

T

I

LOGIC

V

LOGIC

I

S

Note 1: TheÊ21,Ê41, andÊ43 devices are connected for unity-gain operation with 75X load and an input span ofg1V. TheÊ22,Ê42,

Note 2: The

44 devices are connected for a gain ofa2 with a 150X load and ag1V input span with R

and

Ê

21 andÊ41 devices are connected for unity gain with ag3V input span while the output swing is measured.

Ê

e

25§C

A

(Note 3) EL4443 and EL4444

Output Swing

Output Short-Circuit Current

Unselected Channel Feedthrough ’21, ’41, ’43 70 80 I dB
Attenuation, (Note 1) ’22, ’42, ’44 55 64 I dB

Input Current at A0 and A1

e

with Input

0V and 5V

Logic Valid High and Low Input Levels 0.8 2.0 I V

Supply Current EL4421 and EL4422 11 14
EL4441, EL4442, EL4443, and EL4444 13 16

Ð Contd.

g

2.5

g

2.5

g

40

b

16

Test

Level

g

3IV

g

3.5 I V

g

80 I mA

b

80 I mA

Units

ImA

e

e

R

F

270X.

G

Note 3: CMIR is assured by passing the CMRR test at input voltage extremes.

Closed-Loop AC Electrical Characteristics

Power supplies atg5V. T

ea

2 and R

A

V

L

A

e

150X with R

e

25§C, for EL4421, EL4441, and EL4443 A

e

e

R

G

270X and C

F

e

F

3 pF; for all C

Parameter Description Min Typ Max

BWb3dB

b

3 dB Small-Signal Bandwidth, EL4421, ’41, ’43 80 V MHz

EL4422, ’42, ’44 65 V MHz

BWg0.1 dB 0.1 dB Flatness Bandwidth 10 V MHz

Peaking Frequency Response Peaking 0.5 V dB

SR Slewrate, V

EL4421, EL4441, EL4443 150 200 I V/msec

betweenb2.5V anda2.5V, V

OUT

EL4422, EL4442, EL4444 180 240 I V/msec

V

n

Input-Referred Noise Voltage Density

EL4421, EL4441, EL4443 18 V nV/rt-hz
EL4422, EL4442, EL4444 14 V nV/rt-hz

d

G

Differential Gain Error, V

EL4421, EL4441, EL4443 (V
EL4421, EL4441, EL4443 (V
EL4422, EL4442, EL4444 (V
EL4422, EL4442, EL4444 (V

betweenb0.7V anda0.7V

OFFSET

e

g

12V) 0.01 V %

S

e

g

5V) 0.10 V %

S

e

g

12V) 0.02 V %

S

e

g

5V) 0.11 V %

S

ea

1 and R

V

L

e

g

12V

S

e

e

500X, for EL4422, EL4442, and EL4444

L

15 pF

Test

Level

Units

TDis 2.2inTDis 2.6in

3

EL4421C/22C/41C/42C/43C/44C

Multiplexed-Input Video Amplifiers

Closed-Loop AC Electrical Characteristics

Power supplies atg5V. T

ea

A

2 and R

V

L

A

e

150X with R

e

25§C, for EL4421, EL4441, and EL4443 A

e

e

R

G

270X and C

F

F

e

Parameter Description Min Typ Max

d

T

O

MUX

Differential Phase Error, V

EL4421, EL4441, EL4443 (V
EL4421, EL4441, EL4443 (V
EL4422, EL4442, EL4444 (V
EL4422, EL4442, EL4444 (V

betweenb0.7V anda0.7V

OFFSET

e

g

12V) 0.01 V

S

e

g

5V) 0.1 V

S

e

g

12V) 0.02 V

S

e

g

5V) 0.15 V

S

Multiplex Delay Time, Logic Threshold to 50% Signal Change

EL4421, ’22 8 V nsec
EL4441, ’42, ’43, ’44 12 V nsec

V

GLITCH

Peak Multiplex Glitch

EL4421, ’22 70 V mV
EL4441, ’42, ’43, ’44 100 V mV

ISO Channel Off Isolation at 3.58 MHz (See Text)

EL4421, EL4441, EL4443 76 V dB
EL4422, EL4442, EL4444 63 V dB

ea

1 and R

V

3 pF; for all C

e

500X, for EL4422, EL4442, and EL4444

L

e

15 pF Ð Contd.

L

Typical Performance Curves

EL4421, EL4441, and EL4443
Small-Signal Transient Response

e

V

S

g

5V, R

e

500X

L

EL4421, EL4441, and EL4443
Large-Signal Response

e

g

V

S

12V, R

e

500X

L

Test

Level

Units

§

§

§

§

TDis 2.4in

EL4421, EL4441, and EL4443
Frequency Response for
Various Gains

4421– 5

4421– 7

EL4422, EL4442, and EL4444
Frequency Response for
Various Gains

4421– 6

4421– 8

4

EL4421C/22C/41C/42C/43C/44C

Multiplexed-Input Video Amplifiers

Typical Performance Curves

EL4421, EL4441, and EL4443
Frequency Response for Various Loads

e

V

S

Frequency Response
for Various Loads

e

V

S

g

g

5V, A

15V, A

V

ea

ea

V

1

1

Ð Contd.

4421– 9

EL4422, EL4442, and EL4444
Frequency Response for Various Loads

e

V

S

EL4422, EL4442, and EL4444
Frequency Response for Various Loads

e

V

S

g

5V, A

g

15V, A

V

ea

V

ea

2

4421– 10

2

EL4443 Open-Loop Gain and
Phase vs Frequency

4421– 11

4421– 13

4421– 12

EL4444 Open-Loop Gain and
Phase vs Frequency

4421– 37

5