PA16 Datasheet, PDF (1/4 Pages) Cirrus Logic – POWER OPERATIONAL AMPLIFIERS

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FEATURES
• HIGH POWER BANDWIDTH — 350kHz
• HIGH SLEW RATE — 20V/μs
• FAST SETTLING TIME — 600ns
• LOW CROSSOVER DISTORTION — Class A/B
• LOW INTERNAL LOSSES — 1.2V at 2A
• HIGH OUTPUT CURRENT — ±5A PEAK
• LOW INPUT BIAS CURRENT — FET Input
• ISOLATED CASE — 300 VDC
APPLICATIONS
• MOTOR, VALVE AND ACTUATOR CONTROL
• MAGNETIC DEFLECTION CIRCUITS UP TO 5A
• POWER TRANSDUCERS UP TO 350 kHz
• AUDIO AMPLIFIERS UP TO 44W RMS
DESCRIPTION
The PA16 and PA16A are wideband, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. Their complementary “collector output”
stage can swing close to the supply rails and is protected
against inductive kickback. For optimum linearity, the output
stage is biased for class A/B operation. The safe operating
area (SOA) can be observed for all operating conditions by
selection of user programmable, current limiting resistors
(down to 10mA). Both amplifiers are internally compensated
but are not recommended for use as unity gain followers. For
continuous operation under load, mounting on a heatsink of
proper rating is recommended.
These hybrid integrated circuits utilize thick film (cermet)
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 Power SIP
package is electrically isolated.
EQUIVALENT SCHEMATIC
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12-PIN SIP
PACKAGE STYLE DP
Formed leads available
See package style s ED & EE
TYPICAL APPLICATION
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Vehicular Sound System Power Stage
When system voltages are low and power is at a premium,
the PA16 is a natural choice. The circuit above utilizes not only
the feature of low internal loss of the PA16, but also its very
low distortion level to implement a crystal clear audio amplifier
suitable even for airborne applications. This circuit uses AC
coupling of both the input signal and the gain circuit to render
DC voltage across the speaker insignificant. The resistor and
capacitor across the inputs form a stability enhancement net-
work. The 0.27 ohm current limit resistors provide protection
in the event of an output short circuit.
EXTERNAL CONNECTIONS
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