ELANT EL4095CS, EL4095CN Datasheet

EL4095C

Video Gain Control/Fader/Multiplexer

EL4095C August 1996 Rev D

Features

# Full function video fader # 0.02%/0.02

phase

differential gain/

§

@

100% gain

# 25 ns multiplexer included # Output amplifier included # Calibrated linear gain control

g

#

5V tog15V operation

# 60 MHz bandwidth # Low thermal errors

Applications

# Video faders/wipers # Gain control # Graphics overlay # Video text insertion # Level adjust # Modulation

Ordering Information

Part No. Temp. Range Package Outline

EL4095CNb40§Ctoa85§C 14 Pin P-DIP MDP0031

EL4095CSb40

Ctoa85§C SO-14 MDP0027

§

General Description

The EL4095C is a versatile variable-gain building block. At its core is a fader which can variably blend two inputs together and an output amplifier that can drive heavy loads. Each input appears as the input of a current-feedback amplifier and with external resistors can separately provide any gain desired. The output is defined as:

e

V

OUT

A*V

(0. 5VaV

INA

GAIN

)aB*V

INB

(0.5V–V

where A and B are the fed-back gains of each channel.

Additionally, two logic inputs are provided which each override the analog V

control and force 100% gain for one input

GAIN

and 0% for the other. The logic inputs switch in only 25 ns and provide high attenuation to the off channel, while generating very small glitches.

Signal bandwidth is 60 MHz, and gain-control bandwidth 20 MHz. The gain control recovers from overdrive in only 70 ns.

The EL4095C operates from

g

5V tog15V power supplies, and is available in both 14-pin DIP and narrow surface mount packages.

Ý

Connection Diagram

14-Pin DIP, SO

GAIN

),

Top View

Manufactured under U.S. Patent No. 5,321,371, 5,374,898

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.

©

1992 Elantec, Inc.

4095– 1

EL4095C

Video Gain Control/Fader/Multiplexer

Absolute Maximum Ratings

V

a

S

V

S

a

V

a

I

IN

V

GAIN

V

GAIN

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

Supply Voltage Voltage between V

, Input Voltage (V

INA

V

INB

Current IntobV Input Voltage V

INA

S

a

,bV

and V

INB

b

S

to (V

Input Voltage V

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

MIN

A

per QA test plan QCX0002.

e

(T

25§C)

A

a

18V

V

a

33V

b)b

0.3V

S

a

)a0.3V

S

5mA

g

5V

GAIN

b

to V

S

e

25§C and QA sample tested at T

e

25§C for information purposes only.

A

FORCE

I

OUT

T

A

T

J

T

ST

Internal Power Dissipation See Curves

a

Input Voltage Output Current Operating Temperature Range

b

1V toa6V

g

b

40§Ctoa85§C

35 mA

Operating Junction Temperature 0§Ctoa150§C Storage Temperature Range

e

25§C,

A

b

65§Ctoa150§C

e

T

J

C

TA.

Open Loop DC Electrical Characteristics

e

g

V

S

Parameter Description

V

OS

I

a

B

I

b

B

CMRR Common Mode Rejection 65 80 I dB

b

CMRR

PSRR Power Supply Rejection Ratio 65 95 I dB

b

IPSR

R

OL

R

b

IN

V

IN

V

O

I

SC

V

IH

V

IL

I

FORCE

I

FORCE

e

15V, T

25§C, V

A

ground unless otherwise specified

GAIN

Input Offset Voltage 1.5 5 I mV

a

VINInput Bias Current 5 10 I mA

b

VINInput Bias Current 10 50 I mA

b

VINInput Bias Current

Common Mode Rejection

b

VINInput Current

Power Supply Rejection Ratio

Transimpedance 0.2 0.4 I MX

b

VINInput Resistance 80 V X

a

VINRange (Vb)a3.5 (Va)b3.5 I V

Output Voltage Swing (Vb)a2(V

Output Short-Circuit Current 80 125 160 I mA

Input High Threshold at Force A or Force B Inputs

Input Low Threshold at Force A or Force B Inputs

, High Input Current of Force A

or Force B, V

FORCE

, Low Input Current of Force A

or Force B, V

FORCE

Limits Test

Min Typ Max

Level

Units

0.5 1.5 I mA/V

0.2 2 I mA/V

a

b

)

2I V

2.0 I V

0.8 I V

b

e

5V

b

e

0V

440

50 I mA

b

650 I mA

TDis 0.7inTDis 4.0in

2

EL4095C

Video Gain Control/Fader/Multiplexer

Open Loop DC Electrical Characteristics

e

g

V

S

Parameter Description

Feedthrough, Feedthrough of Deselected Input to Output, Forced Deselected Input at 100% Gain Control

V

GAIN

V

GAIN

NL, Gain Gain Control Non-linearity,

RIN, VG Impedance between V

NL, A

A A

I

S

e

15V, T

25§C, unless otherwise specified

A

, 100% Minimum Voltage at

V

for 100% Gain

GAIN

, 0% Maximum Voltage at

V

for 0% Gain

GAIN

e

g

V

e

1 Signal Non-linearity, V

V

e

0.5 Signal Non-linearity, V

V

e

0.25 Signal Non-linearity, V

V

0.5V

IN

Supply Current 17 21 I mA

GAIN

IN

and V

e e e

g

GAIN

1V, V 1V, V 1V, V

e

0.55V

GAIN

e

0V 0.03 V %

GAIN

eb

GAIN

0.25V 0.07 0.4 I %

Closed Loop AC Electrical Characteristics

e

g

V

S

noted

Parameter Description

SR Slew Rate; V

BW Bandwidth

dG Differential Gain; AC Amplitude of 286 mV

di Differential Phase; AC Amplitude of 286 mV

T

S

T

FORCE

BW, Gain

T

REC

15V, A

V

ea

e

1, R

F

Measured at

e

R

1kX,R

IN

fromb3V toa3V

OUT

b

2V anda2V

L

e

500X,C

at 3.58 MHz on DC Offset ofb0.7V, 0V anda0.7V

Settling Time to 0.2%; V

Propagation Delay from V Output Signal Enabled or Disabled Amplitude

b

3 dB Gain Control Bandwidth,

Amplitude 0.5 V

V

GAIN

fromb2V toa2V

OUT

e

FORCE

P-P

, Gain Gain Control Recovery from Overload;

fromb0.7V to 0V

V

GAIN

e

15 pF, C

L

A

V

A

V

A

V

A

V

A

V

A

V

A

V

A

V

IN

b

3 dB 60 MHz

b

1 dB 30 V MHz

b

0.1 dB 6 MHz

p-p

e

100% 0.02 V %

e

50% 0.07 %

e

25% 0.07 %

p-p

e

100% 0.02 V

e

50% 0.05

e

25% 0.15

e

100% 100 V ns

e

25% 100 ns

1.4V to 50%

Ð Contd.

Limits Test

Min Typ Max

60 75 I dB

0.45 0.5 0.55 I V

b

be

2 pF, T

Min Typ Max

0.55

b

0.5

b

0.45 I V

24 I%

4.5 5.5 6.5 I kX

k

0.01 V %

e

A

25§C, A

e

100% unless otherwise

V

Limits Test

330 V V/ms

25 V ns

20 V MHz

70 V ns

Level

Units

TDis 2.4inTDis 3.8in

Units

§

3

EL4095C

Video Gain Control/Fader/Multiplexer

Typical Performance Curves

Large-Signal Pulse

Response Gain

ea

1

Small-Signal Pulse Response

for Various Gains

4095– 6

Large-Signal Pulse

V

ea

1

eb

1

Response Gain

Frequency Response for Different Gains-A

4095– 7

Frequency Response with Different Values of R

b

Gainea1

F

4095– 8

4095– 10

4095– 9

Frequency Response with Different Values of R

b

Gaineb1

F

4095– 11

4

EL4095C

Video Gain Control/Fader/Multiplexer

Typical Performance Curves

Frequency Response with Different Gains Load Capacitances and Resistances

Frequency Response with Various Values of Parasitic C

b

IN

Ð Contd.

Frequency Response with Various

Input Noise Voltage and Current vs Frequency

Change in Bandwidth and Slewrate with Supply Voltage

b

Gainea1

Change in Bandwidth and Slewrate with Supply VoltagebGaineb1

4095– 12

5

EL4095C

Video Gain Control/Fader/Multiplexer

Typical Performance Curves

Change in Bandwidth and Slewrate with TemperaturebGainea1

DC Nonlinearity vs Input Voltage

b

Gainea1

Ð Contd.

Change in Bandwidth and Slewrate with TemperaturebGaineb1

Change in VOSand IB- vs die Temperature

Differential Gain and Phase Errors vs Gain Control Setting

b

Gainea1

Differential Gain and Phase Errors vs Gain Control SettingbGaineb1

4095– 13

6

EL4095C

Video Gain Control/Fader/Multiplexer

Typical Performance Curves

Differential Phase Error vs DC OffsetbGainea1

Differential Phase Error vs DC Offset

b

Gaineb1

Ð Contd.

Differential Phase Error vs DC OffsetbGainea1

Differential Phase Error vs DC OffsetbGaineb1

Attenuation over Frequency

b

Gainea1

Attenuation over FrequencybGaineb1

4095– 14

7

EL4095C

Video Gain Control/Fader/Multiplexer

Typical Performance Curves

Gain vs VG(1 VDCat V

Gain Control Response to a Non-Overloading

Step, Constant Sinewave at V

INA

)

Ð Contd.

4095– 15

Gain Control Gain vs Frequency

V

Overload Recovery Delay

GAIN

4095– 16

V

Overload Recovery

GAIN

ResponseÐNo AC Input

4095– 17

4095– 19

4095– 18

Cross-Fade Balanceb0V on

A

and BIN; Gain

IN

8

ea

1

4095– 20