Apex PA01, PA73 Datasheet
POWER OPERATIONAL AMPLIFIERS
MICROTECHNOLOGY
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
FEATURES
• LOW COST, ECONOMY MODEL — PA01
• SECOND SOURCEABLE — PA73
• HIGH OUTPUT CURRENT — Up to ±5A PEAK
• EXCELLENT LINEARITY — PA01
• HIGH SUPPLY VOLTAGE — Up to ±30V
• ISOLATED CASE — 300V
APPLICATIONS
• MOTOR, VALVE AND ACTUATOR CONTROL
• MAGNETIC DEFLECTION CIRCUITS UP TO 4A
• POWER TRANSDUCERS UP TO 20kHz
• TEMPERATURE CONTROL UP TO 180W
• PROGRAMMABLE POWER SUPPLIES UP TO 48V
• AUDIO AMPLIFIERS UP TO 50W RMS
DESCRIPTION
The PA01 and PA73 are high voltage, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. For optimum linearity, the PA01 has a
class A/B output stage. The PA73 has a simple class C output
stage (see Note 1) to reduce cost for motor control and other
applications where crossover distortion is not critical and to
provide interchangeability with type 3573 amplifiers. The safe
operating area (SOA) can be observed for all operating conditions by selection of user programmable current limit resistors.
These amplifiers are internally compensated for all gain settings. For continuous operation under load, a heatsink of
proper rating is recommended.
This hybrid integrated circuit utilizes thick film (cermet)
resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3
package is hermetically sealed and electrically isolated. The
use of compressible thermal washers and/or improper mounting torque will void the product warranty. Please see “General
Operating Considerations”.
EXTERNAL CONNECTIONS
R
CL+
OUTPUT
R
CL–
+IN
–IN
+V
4
5
S
–V
3
S
TOP VIEW
6
2
7
N.C.
CL+
OUT
1
8
CL–
PA01 • PA73
TYPICAL APPLICATION
C
F
R
F/V
0/–5V
*
Q1
*
CL+
.33
Ω
3W
R
CL–
.33
Ω
3W
*
Q4
OPTO
PULSE
GEN.
Q2A
Q3
Q5
*
Q6A
+6V
IN
1N4148
R
IN
PA01
–30V
R
F
V
0/+5V
UNSYMMETRICAL SUPPLIES FOR EFFICIENCY
Unidirectional Optical Speed Control
The pulse output of a non-contact optical sensor drives a
voltage-to-frequency converter which generates feedback for
the op amp. With the loop closed in this manner, the op amp
corrects for any variations in the speed due to changing load.
Because of operation in only one direction, an unsymmetrical
supply is used to maximize efficiency of both power op amp
and power supply. High speed diodes at the input protect the
op amp from commutator noise which may be generated by
the motor.
EQUIVALENT SCHEMATIC
3
D1
*
*
4
A1
5
C1
6
NOTE 1: * Indicates not used in PA73. Open base of Q2A connected to
output of A1.
Q2B
Q6B
24V
M
2
1
8
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
PA01 • PA73
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
PA01 PA73
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –V
OUTPUT CURRENT, within SOA 5A 5A
S
60V 68V
POWER DISSIPATION, internal 67W 67W
INPUT VOLTAGE, differential ±VS –3V ±VS –3V
INPUT VOLTAGE, common-mode ±V
TEMPERATURE, junction
1
200°C 200°C
S
±V
S
TEMPERATURE, pin solder -10s 300°C 300°C
TEMPERATURE RANGE, storage –65 to +150°C –65 to +150°C
OPERATING TEMPERATURE RANGE, case –25 to +85°C –25 to +85°C
SPECIFICATIONS
PARAMETER TEST CONDITIONS
PA01
2
MIN TYP MAX MIN TYP MAX UNITS
PA73
INPUT
OFFSET VOLTAGE, initial TC = 25°C ±5 ±12 * ±10 mV
OFFSET VOLTAGE, vs. temperature Full temperature range ±10 ±65 * * µV/°C
OFFSET VOLTAGE, vs. supply TC = 25°C ±35 * ±200 µV/V
OFFSET VOLTAGE, vs. power TC = 25°C ±20 * µV/W
BIAS CURRENT, initial TC = 25°C ±15 ±50 * ±40 nA
BIAS CURRENT, vs. temperature Full temperature range ±.05 ±.4 * * nA/°C
BIAS CURRENT, vs. supply TC = 25°C ±.02 * nA/V
OFFSET CURRENT, initial TC = 25°C ±5 ±15 * ±10 nA
OFFSET CURRENT, vs. temperature Full temperature range ±.01 * nA/°C
INPUT IMPEDANCE, common-mode TC = 25°C 200 * MΩ
INPUT IMPEDANCE, differential TC = 25°C10*MΩ
INPUT CAPACITANCE TC = 25°C3*pF
COMMON MODE VOLTAGE RANGE3Full temperature range ±VS–6 ±VS–3** V
COMMON MODE REJECTION, DC
3
TC = 25°C, VCM = VS –6V 70 110 * * dB
GAIN
OPEN LOOP GAIN at 10Hz Full temp. range, full load 91 113 * * dB
GAIN BANDWIDTH PRODUCT @ 1MHz TC = 25°C, full load 1 * MHz
POWER BANDWIDTH TC = 25°C, IO = 4A, VO = 40V
PHASE MARGIN Full temperature range 45 * °
PP
15 23 * * kHz
OUTPUT
VOLTAGE SWING
VOLTAGE SWING
VOLTAGE SWING
3
3
3
TC = 25°C, IO = 5A ±VS–10 ±VS–5 ±VS–8* V
Full temp. range, IO = 2A ±VS–6 ±VS–5** V
Full temp. range, IO = 46mA ±VS–5* V
CURRENT, peak TC = 25°C ±5* A
SETTLING TIME to .1% TC = 25°C, 2V step 2 * µs
SLEW RATE TC = 25°C, RL = 2.5Ω 1.0 2.6 * * V/µs
CAPACITIVE LOAD, unity gain Full temperature range 3.3 * nF
CAPACITIVE LOAD, gain > 4 Full temperature range SOA *
POWER SUPPLY
VOLTAGE Full temperature range ±10 ±28 ±28 * * ±30 V
CURRENT, quiescent TC = 25°C 20 50 2.6 5 mA
THERMAL
RESISTANCE, AC, junction to case
4
F > 60Hz 1.9 2.1 * * °C/W
RESISTANCE, DC, junction to case F < 60Hz 2.4 2.6 * * °C/W
RESISTANCE, junction to air 30 * °C/W
TEMPERATURE RANGE, case Meets full range specifications –25 25 +85 * * * °C
NOTES: * The specification of PA73 is identical to the specification for PA01 in applicable column to the left.
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation
to achieve high MTTF.
2. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition.
3. +V
4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
CAUTION
APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739
and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS.
S
The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or
subject to temperatures in excess of 850°C to avoid generating toxic fumes.
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