EL6262C

Features:

• Autozero of output offset to<10mV
• 3 selectable gains; 8KW, 15KW,40KW
• Space saving QSOP-24 package
• Differential Sum & Sum-Bar outputs
• Single 5V supply




Application

• DVD RAM, RW, and ROM
• CD RW, R and ROM
• MO drives
• Optical Pickup pre-amplifier
• Servo positioning systems
• High speed instrumentation



Pinout




Description

   The EL6262C consists of 4 20MHz trans-impedance amplifiers and 470MHz trans-impedance amplifiers. The four 70MHz amplifier outputs also are averaged to provide differential 70MHz outputs.

   The EL6262C 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 amplifiers EL6262C.The gain settings are 8KW, 15KW, and 40KW for all channels.The sum and sumbar outputs are 11KW, 20KW, and 45KW single ended. Gain matching is typically 3%, channel to channel. An autozero input brought high after power up reduces the output offsets to
less than 10mV.

   The EL6262C E, F, G, and H channel bandwidths are 20MHz for all gains and reasonable input and output loads. The A, B, C, D, S, and S channels have bandwidths of 70MHz, 46MHz, and 32MHz at low, middle, and high gains respectively after driving 25cm of flex circuit.

   Each amplifier EL6262C output can typically sink or source up to 5mA and their outputs can swing 1V_P-P at full bandwidth.

   The EL6262C operates from a single +5V supply and is available in QSOP-24 package. It is specified for operation from -0°C to 70°C.