PA81J PPA81J PA82JA82J PA81J, PA82J High Voltage Power Operational Amplifiers FEATURES HIGH VOLTAGE OPERATION 150V (PA82J) HIGH OUTPUT CURRENT 30mA (PA81J) LOW BIAS CURRENT, LOW NOISE FET Input APPLICATIONS HIGH IMPEDANCE BUFFERS UP TO 140V 8-PIN TO-3 ELECTROSTATIC TRANSDUCER & DEFLECTION PACKAGE STYLE CE PROGRAMMABLE POWER SUPPLIES TO 145V BIOCHEMISTRY STIMULATORS 70K COMPUTER TO VACUUM TUBE INTERFACE +75V DESCRIPTION .47 The PA80 series of high voltage operation amplifiers provides 1mA an extremely wide range of supply capability with two over- D/A 70V lapping products. High accuracy is achieved with a cascode PA81J input circuit configuration. All internal biasing is referenced to a zener diode. As a result, these models offer outstanding common mode and power supply rejection. The output stage .47 operates in the class A/B mode for best linearity. Internal phase compensation assures stability at all gain settings without ex- 75V ternal components. Fixed internal current limits protect these HIGH VOLTAGE PROGRAMMABLE POWER SUPPLY amplifiers against a short circuit to common at most supply TYPICAL APPLICATION voltages. For sustained high energy flyback, external fast recovery diodes should be used. However, a heatsink may The PA81 and 70K ohm resistor form a current to voltage be necessary to maintain the proper case temperature under converter, accepting 1mA from a 12 bit current output digital normal operating conditions. to analog converter. The power op amp contribution to the er- This hybrid circuit utilizes thick film resistors, ceramic ror budget is insignificant. At a case temperature of 70C, the capacitors and silicon semiconductors to maximize reliabil- combination of voltage offset and bias errors amounts to less ity, minimize size and give top performance. Ultrasonically than 31ppm of full scale range. Incorporation of the optional bonded aluminum wires provide reliable interconnections offset trim can further reduce these errors to under 9ppm. at all operating temperatures. The 8-pin TO-3 package (see Package Outlines) is hermetically sealed and isolated from EQUIVALENT SCHEMATIC the internal circuits. The use of compressible thermal washers voids the warranty. 4 2 EXTERNAL CONNECTIONS C1 D1 -V S 3 +IN Q3 7 N.C. Q1 Q2 6 Q4 8 IN Q5 5 C3 C2 Q6 TOP VIEW Q8 Q9 Q7 4 BAL C5 Q11 C4 1 Q12B 1 3 OUT Q12A 2 5 BAL +V Q13 S Q14 Q17 NOTE: Input offset trimpot optional. Q16 6 Q15 Recommended value of 100K C6 D2 7 Copyright Apex Microtechnology, Inc. 2014 OCT 2015 wwwPA81-82U .apexanalog.com 1 (All Rights Reserved) PA81-82JU REVPPA81J PA82J PA81J PA82J ABSOLUTE MAXIMUM RATINGS SUPPLY VOLTAGE, +V to V 200V 300V S S OUTPUT CURRENT, within SOA Internally Limited POWER DISSIPATION, internal 11.5W 11.5W INPUT VOLTAGE, differential 150V 300V INPUT VOLTAGE, common mode V V S S TEMPERATURE, pin solder - 10 sec 350C 350C TEMPERATURE, junction 150C 150C TEMPERATURE RANGE, storage 65 to +125C 65 to +125C OPERATING TEMPERATURE RANGE, case 55 to +125C 55 to +125C SPECIFICATIONS PA81J PA82J 2 PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNITS INPUT OFFSET VOLTAGE, initial T = 25C 1.5 3 * * mV C OFFSET VOLTAGE, vs. temperature Full temperature range 10 25 * * V/C OFFSET VOLTAGE, vs. supply T = 25C 20 * V/V C OFFSET VOLTAGE, vs. time T = 25C 75 * V/kh C BIAS CURRENT, initial T = 25C 5 50 * * pA C BIAS CURRENT, vs. supply T = 25C .2 * pA/V C OFFSET CURRENT, initial T = 25C 2.5 50 * * pA C 11 INPUT IMPEDANCE, DC T = 25C 10 * C INPUT CAPACITANCE T = 25C 10 * pF C 2 COMMON MODE VOLTAGE RANGE Full temperature range V10 * V S COMMON MODE REJECTION, DC V = 20V 110 * dB CM GAIN OPEN LOOP GAIN at 10Hz Full load 94 116 100 118 dB UNITY GAIN BANDWIDTH T = 25C 5 * MHz C POWER BANDWIDTH T = 25C, full load 60 30 kHz C PHASE MARGIN Full temperature range 45 * OUTPUT 2 VOLTAGE SWING T = 25C, I V5 * V C PK S CURRENT, peak T = 25C 30 15 mA C CURRENT, limit T = 25C 50 25 mA C SETTLING TIME to .1% T = 25C, 10V step 12 * s C 4 SLEW RATE T = 25C 20 * V/s C CAPACITIVE LOAD A = 1 10 * nF V POWER SUPPLY VOLTAGE Full temperature range 32 75 75 70 150 150 V CURRENT, quiescent T = 25C 6.5 8.5 6.5 8.5 mA C THERMAL 3 RESISTANCE, AC, junction to case F > 60Hz 6 * C/W 3 RESISTANCE, DC, junction to case F < 60Hz 9 10 * * C/W RESISTANCE, junction to air Full temperature range 30 * C/W TEMPERATURE RANGE, shutdown 150 * C TEMPERATURE RANGE, case Meets full range specification 0 70 * * C NOTES: * The specification of PA82J is identical to the specification for PA81J in applicable column to the left. 1. The power supply voltage for all specifications is the TYP rating unless noted as a test condition. 2. +V and V denote the positive and negative supply rail respectively. Total V is measured from +V to V . S S S S S 3. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. 4. On the PA81J and PA82J, signal slew rates at pins 5 and 6 must be limited to less than 1V/ns to avoid damage. When faster waveforms are unavoidable, resistors in series with those pins, limiting current to 150mA will protect the amplifier from damage. 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 PA81-82U