PB51 Datasheet, PDF (1/4 Pages) Cirrus Logic – POWER OPERATIONAL AMPLIFIER

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FEATURES
• WIDE SUPPLY RANGE — ±15V to ±150V
• HIGH OUTPUT CURRENT —
1.5A Continuous (PB51), 2.0A Continuous (PB51A)
• VOLTAGE AND CURRENT GAIN
• HIGH SLEW —
50V/µs Minimum (PB51)
75V/µs Minimum (PB51A)
• PROGRAMMABLE OUTPUT CURRENT LIMIT
• HIGH POWER BANDWIDTH — 320 kHz Minimum
• LOW QUIESCENT CURRENT — 12mA Typical
• EVALUATION KIT — EK29
APPLICATIONS
• HIGH VOLTAGE INSTRUMENTATION
• ELECTROSTATIC TRANSDUCERS & DEFLECTION
• PROGRAMMABLE POWER SUPPLIES UP TO 280V P-P
DESCRIPTION
The PB51 is a high voltage, high current amplifier designed
to provide voltage and current gain for a small signal, general
purpose op amp. Including the power booster within the feed-
back loop of the driver amplifier results in a composite amplifier
with the accuracy of the driver and the extended output voltage
range and current capability of the booster. The PB51 can also
be used without a driver in some applications, requiring only
an external current limit resistor to function properly.
The output stage utilizes complementary MOSFETs, pro-
viding symmetrical output impedance and eliminating second
breakdown limitations imposed by Bipolar Transistors. Internal
feedback and gainset resistors are provided for a pin-strapable
gain of 3. Additional gain can be achieved with a single external
resistor. Compensation is not required for most driver/gain
configurations, but can be accomplished with a single external
capacitor. Enormous flexibility is provided through the choice
of driver amplifier, current limit, supply voltage, voltage gain,
and compensation.
This hybrid circuit utilizes a beryllia (BeO) substrate, thick
film resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable inter-
connections at all operating temperatures. The 12-pin Power
SIP package is electrically isolated.
TYPICAL APPLICATION
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12-PIN SIP
PACKAGE STYLE DP
Formed leads available. See package styles ED & EE
EQUIVALENT SCHEMATIC
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EXTERNAL CONNECTIONS
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