EL4120C Elantec Semiconductor, Inc. (acquired by Intersil), EL4120C Datasheet
EL4120C
Manufacturer Part Number
EL4120C
Description
500MHz Dc-restored Video Amplifier
Manufacturer
Elantec Semiconductor, Inc. (acquired by Intersil)
Datasheet
1.EL4120C.pdf
(2 pages)
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.
© 2001 Elantec Semiconductor, Inc.
Features
Applications
Ordering Information
• Single and triple channels
• Single 5V and ±5V operation
• 500MHz bandwidth
• 1500V/µs slew rate
• Supply current of 11mA/channel
• Power-down mode
• 1mV typical DC-restored offset
• HDTV/DTV analog inputs
• Video projectors
• Computer monitors
• Set top boxes
• Broadcast video equipment
EL4120CU
EL4320CU
Part No.
16-Pin QSOP
28-Pin QSOP
Package
Tape & Reel
MDP0040
MDP0040
Outline #
EL4120C, EL4320C - Product Brief
500MHz DC-Restore Amplifier
General Description
The EL4120C and EL4320C are single channel and triple channel DC-
restore amplifiers, respectively. They exhibit a -3dB bandwidth of
500MHz and operate on just 11mA per channel. When the DC-restore
is active, they exhibit a typical offset of just 1mV. This makes the
EL4120C and EL4320C ideal for use in offset correction in both ana-
log and A-to-D applications.
The hold capacitor, feedback, and generator resistors are external. The
hold pin uses standard TTL logic and is referenced to the GNDL pin.
The EL4120C is available in the 16-pin QSOP package and the
EL4320C in a 28-pin QSOP package. All parts are specified for oper-
ation over the -40°C to +85°C temperature range.
Connection Diagram
VIDEO_IN1
VIDEO_IN2
VIDEO_IN3
DCREF1
DCREF2
DCREF3
GNDL
CAP1
GNDI
CAP2
CAP3
ENB
NC
NC
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(28-Pin QSOP)
EL4320C
+
+
+
-
-
-
+
+
+
-
-
-
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DCFDBK1
VOUT1
VS1+
VFDBK1
VS2+
VFDBK2
HOLD
VOUT2
DCFDBK2
VS-
VFDBK3
VS-
VOUT3
DCFDBK3
VIDEO_IN
DCREF
GNDI
CAP
ENB
VS-
NC
NC
1
2
3
4
5
6
7
8
(16-Pin QSOP)
EL4120C
+
-
+
-
16
15
14
13
12
11
10
9
DCFDBK
VOUT
VS1+
VFDBK
VS2+
VS-
GNDL
HOLD
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EL4120C Summary of contents
Page 1
... When the DC-restore is active, they exhibit a typical offset of just 1mV. This makes the EL4120C and EL4320C ideal for use in offset correction in both ana- log and A-to-D applications. The hold capacitor, feedback, and generator resistors are external. The hold pin uses standard TTL logic and is referenced to the GNDL pin ...
Page 2
... EL4120C, EL4320C - Product Brief 500MHz DC-Restore Amplifier General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement ...