EL6265C - Product Brief
13 Channel, 60MHz, Switched Gain Pre-Amp
Features
General Description
• Autozero of output offset to
<10mV
• 13 channels with three selectable
gains of 12kW, 23kW, and 63kW
• Low noise, low group delay
variation
The EL6265C consists of 13 fast settling, switch gain, trans-imped-
ance 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.
• Channel settling times of 26ns,
33ns, and 27ns
Two TTL/CMOS compatible inputs select the gain for all eight ampli-
fiers. The gain settings are 12kW, 23kW, and 63kW 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.
• Low offset voltage - DC coupled
channels
• Space saving, low thermal
resistance, LPP-38 package
• Single 5V supply
Each amplifier output can typically sink or source up to 5mA and their
outputs can swing 1VP-P at full bandwidth at the end of a long flex cir-
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.
Applications
• DVD-RAM, -RW, and -ROM
• CD-RW, -R, and -ROM
• MO drives
• Optical pickup pre-amplifier
• Servo positioning systems
• High speed instrumentation
Connection Diagram
CIN
BIN
AIN
GIN
FIN
1
2
3
4
5
6
7
8
9
31 BOUT
30 AOUT
29 GND
28 GOUT
27 FOUT
26 EOUT
25 HOUT
24 IOUT
23 JOUT
22 GND
21 LOUT
20 KOUT
Ordering Information
Part No
Package
Tape & Reel
Outline #
EL6295CJ
38-Pin LPP
MDP0046
EIN
HIN
GND
IIN
Thermal Pad
JIN 10
LIN 11
KIN 12
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.