ELANT EL6295CJ Datasheet
EL6265C - Product Brief
13 Channel, 60MHz, Switched Gain Pre-Amp
EL6265C - Product Brief
Features
• Autozero of output offset to
<10mV
• 13 channels with three selectable
gains of 12kΩ, 23kΩ, and 63kΩ
• Low noise, low group delay
variation
• Channel settling times of 26ns,
33ns, and 27ns
• Low offset voltage - DC coupled
channels
• Space saving, low thermal
resistance, LPP-38 package
• Single 5V supply
Applications
• DVD-RAM, -RW, and -ROM
• CD-RW, -R, and -ROM
• MO drives
• Optical pickup pre-amplifier
• Servo positioning systems
• High speed instrumentation
Ordering Information
Part No Package Tape & Reel Outline #
EL6295CJ 38-Pin LPP MDP0046
General Description
The EL6265C consists of 13 fast settling, switch gain, trans-impedance amplifiers with source terminated flex drive capability. The
amplifier bandwidth and settling times varies with the selected gain.
The fast channel bandwidths are 59MHz, 43MHz, and 34MHz. With a
short flex, the bandwidths can be slightly increased.
The EL6265C is designed to amplify the photo diode currents for CD,
DVD, or other photo diode pick-up applications.
Two TTL/CMOS compatible inputs select the gain for all eight ampli-
fiers. The gain settings are 12kΩ, 23kΩ, and 63kΩ for all channels.
Gain matching is typically 3%, channel to channel. An auto-zero input
brought high after power up reduces the output offsets to less than
10mV.
Each amplifier output can typically sink or source up to 5mA and their
outputs can swing 1V
at full bandwidth at the end of a long flex cir-
P-P
cuit. The EL6265C operates from a single +5V supply and is available
in an LPP-38 package. It is specified for operation from -0°C to 70°C.
Connection Diagram
VDD
GND
VREF
GS0
GS1
AZ
COUT
32
33
34
35
36
37
38
CIN
BIN
AIN
GIN
1
2
3
4
31
BOUT
30
AOUT
29
GND
28
GOUT
5
FIN
6
EIN
7
HIN
8
GND
9
IIN
10
JIN
11
LIN
12
KIN
13
MIN
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.
14
DIN
Thermal Pad
15
16
VDD
GND
17
VREF
27
FOUT
26
EOUT
25
HOUT
24
IOUT
23
JOUT
22
GND
21
LOUT
20
KOUT
18
19
DOUT
MOUT
October 15, 2001
EL6265C - Product Brief
13 Channel, 60MHz, Switched Gain Pre-Amp
EL6265C - Product Brief
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 circuitry 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.
WARNING - Life Support Policy
Elantec, Inc. products are not authorized for and should not be used
within Life Support Systems without the specific written consent of
Elantec, Inc. Life Support systems are equipment intended to sup-
Elantec Semiconductor, Inc.
675 Trade Zone Blvd.
Milpitas, CA 95035
Telephone: (408) 945-1323
(888) ELANTEC
Fax: (408) 945-9305
European Office: +44-118-977-6020
Japan Technical Center: +81-45-682-5820
port or sustain life and whose failure to perform when properly used
in accordance with instructions provided can be reasonably
expected to result in significant personal injury or death. Users contemplating application of Elantec, Inc. Products in Life Support
Systems are requested to contact Elantec, Inc. factory headquarters
to establish suitable terms & conditions for these applications. Elantec, Inc.’s warranty is limited to replacement of defective
components and does not cover injury to persons or property or
other consequential damages.
October 15, 2001
2
Printed in U.S.A.
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