PA12 PPA12 PA12AA12A PA12, PA12A Power Operational Amplifier FEATURES LOW THERMAL RESISTANCE 1.4C/W CURRENT FOLDOVER PROTECTION NEW HIGH TEMPERATURE VERSION PA12H EXCELLENT LINEARITY Class A/B Output WIDE SUPPLY RANGE 10V to 50V HIGH OUTPUT CURRENT Up to 15A Peak 8-PIN TO-3 APPLICATIONS PACKAGE STYLE CE MOTOR, VALVE AND ACTUATOR CONTROL POWER RATING MAGNETIC DEFLECTION CIRCUITS UP TO 10A Not all vendors use the same method to rate the power handling capability of a Power Op Amp. Apex Microtechnology POWER TRANSDUCERS UP TO 100kHz rates the internal dissipation, which is consistent with rating TEMPERATURE CONTROL UP TO 360W methods used by transistor manufacturers and gives conser- PROGRAMMABLE POWER SUPPLIES UP TO 90V vative results. Rating delivered power is highly application AUDIO AMPLIFIERS UP TO 120W RMS dependent and therefore can be misleading. For example, the 125W internal dissipation rating of the PA12 could be expressed as an output rating of 250W for audio (sine wave) or as 440W DESCRIPTION if using a single ended DC load. Please note that all vendors The PA12 is a state of the art high voltage, very high output rate maximum power using an infinite heatsink. current operational amplifier designed to drive resistive, induc - tive and capacitive loads. For optimum linearity, especially at low THERMAL STABILITY levels, the output stage is biased for class A/B operation using Apex Microtechnology has eliminated the tendency of class a thermistor compensated base-emitter voltage multiplier circuit. A/B output stages toward thermal runaway and thus has vastly The safe operating area (SOA) can be observed for all operating increased amplifier reliability. This feature, not found in most conditions by selection of user programmable current limiting other Power Op Amps, was pioneered by Apex Microtech- resistors. For continuous operation under load, a heatsink of nology in 1981 using thermistors which assure a negative proper rating is recommended. The PA12 is not recommended temperature coefficient in the quiescent current. The reliability for gains below 3 (inverting) or +4 (non-inverting). benefits of this added circuitry far outweigh the slight increase This hybrid integrated circuit utilizes thick lm fi (cermet) in component count. resistors, ceramic capacitors and semiconductor chips to maximize reliability, minimize size and give top performance. EXTERNAL CONNECTIONS Ultrasonically bonded aluminum wires provide reliable inter- F.O. connections at all operating temperatures. The 8-pin TO-3 V S 7 package is hermetically sealed and electrically isolated. The CL 6 use of compressible isolation washers voids the warranty. 8 R IN CL- 5 EQUIVALENT SCHEMATIC TOP VIEW 4 3 OUTPUT +IN 1 Q2A OUT 3 D1 Q2B 2 +V CL+ S R CL+ 2 Q1 Q3 1 7 Q5 Q4 8 4 Q6B A1 Q6A 5 C1 6 Copyright Apex Microtechnology, Inc. 2012 OCT 2012 wwwPA12U .apexanalog.com 1 (All Rights Reserved) PA12U REVVPA12 PA12A PA12/PA12A ABSOLUTE MAXIMUM RATINGS SUPPLY VOLTAGE, +Vs to Vs 100V OUTPUT CURRENT, within SOA 15A POWER DISSIPATION, internal 125W INPUT VOLTAGE, differential 37V INPUT VOLTAGE, common mode V S TEMPERATURE, pin solder -10s 350C 1 TEMPERATURE, junction 200C TEMPERATURE RANGE, storage 65 to +150C OPERATING TEMPERATURE RANGE, case 55 to +125C SPECIFICATIONS PA12 PA12A 2, 5 PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS INPUT OFFSET VOLTAGE, initial T = 25C 2 6 1 4 mV C OFFSET VOLTAGE, vs. temperature Full temperature range 10 65 * 40 V/C OFFSET VOLTAGE, vs. supply T = 25C 30 200 * * V/V C OFFSET VOLTAGE, vs. power T = 25C 20 * V/W C BIAS CURRENT, initial T = 25C 12 30 10 20 nA C BIAS CURRENT, vs. temperature Full temperature range 50 500 * * pA/C BIAS CURRENT, vs. supply T = 25C 10 * pA/V C OFFSET CURRENT, initial T = 25C 12 30 5 20 nA C OFFSET CURRENT, vs. temperature Full temperature range 50 * pA/C INPUT IMPEDANCE, DC T = 25C 200 * M C INPUT CAPACITANCE T = 25C 3 * pF C 3 COMMON MODE VOLTAGE RANGE Full temperature range V 5 V 3 * * V S S COMMON MODE REJECTION, DC Full temp. range, V = V 6V 74 100 * * dB CM S GAIN OPEN LOOP GAIN at 10Hz T = 25C, 1K load 110 * dB C OPEN LOOP GAIN at 10Hz Full temp. range, 8 load 96 108 * * dB GAIN BANDWIDTH PRODUCT 1MHz T = 25C, 8 load 4 * MHz C POWER BANDWIDTH T = 25C, 8 load 13 20 * * kHz C PHASE MARGIN, A = +4 Full temp. range, 8 load 20 * V OUTPUT 3 VOLTAGE SWING T = 25C, PA12 = 10A, PA12A = 15A V 6 * V C S 3 VOLTAGE SWING T = 25C, I = 5A V 5 * V C O S 3 VOLTAGE SWING Full temp. range, I = 80mA V 5 * V O S CURRENT, peak T = 25C 10 15 A C SETTLING TIME to .1% T = 25C, 2V step 2 * s C SLEW RATE T = 25C 2.5 4 * * V/s C CAPACITIVE LOAD Full temperature range, A = 4 1.5 * nF V CAPACITIVE LOAD Full temperature range, A > 10 SOA * V POWER SUPPLY VOLTAGE Full temperature range 10 40 45 * * 50 V CURRENT, quiescent T = 25C 25 50 * * mA C THERMAL 4 RESISTANCE, AC, junction to case T = 55 to +125C, F > 60Hz .8 .9 * * C/W C RESISTANCE, DC, junction to case T = 55 to +125C 1.25 1.4 * * C/W C RESISTANCE, junction to air T = 55 to +125C 30 * C/W C TEMPERATURE RANGE, case Meets full range specification 25 +85 55 +125 C NOTES: * The specification of PA12A is identical to the specification for PA12 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 for all tests is 40, unless otherwise noted as a test condition. 3. +V and V denote the positive and negative supply rail respectively. Total V is measured from +V to V . S S S S S 4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. 5. Full temperature range specifications are guaranteed but not 100% tested. The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or CAUTION subject to temperatures in excess of 850C to avoid generating toxic fumes. 2 PA12U