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INTRODUCTION
Fast, easy breadboarding of circuits using the PA241DW
and the PA15 are possible with the EK42 PC board. Mounting
holes are provided and the provision for standard banana jacks
simplifies connection and testing. The amplifier may be mounted
horizontally or vertically. Components are labeled on both sides
of the board for ease in probing.
A multitude of circuit configurations are possible, so only
several component locations have specific functions and will
usually always be necessary:
C5,C7 Power supply bypasses MUST be used. Usually
ceramic types of 0.01 to 0.1µF.
R1
Feedback resistor.
R2
Input resistor.
R9, C11 Compensation (see amplifier data sheet).
R5
Current limit (see amplifier data sheet).
R7
Most often used as input bias current return for +input
in non-inverting circuits.
R3, C6 Noise gain compensation. Necessary only occasion-
ally, see Application Notes 19 and 25.
The following locations should be jumpered unless used (their
most common anticipated function is listed).
R4, R8 Input protection.
R11
General purpose.
R6
Output current sense.
The function of any other components is up to the designer’s
needs and imagination.
EQUIVALENT SCHEMATIC
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CAUTION
High voltages will be present.
Use caution in handling and
probing when power is applied.
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NOTE: Illustration only, not to exact scale.
This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible
ORDERS
or omissions. All specifications
prodlit@apexmicrotech.com
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 •
inaccuracies
(520) 690-8601 • EMAIL
are subject to change without notice.
EK42U REV C NOVEMBER 2004
© 2004 Apex Microtechnology Corp.
1
APEX [ CIRRUS LOGIC ]
