PA83 PA83A APEX MICROTECHNOLOGY CORPORATION APPLICATIONS HOTLINE 800 546-AI7EX (|BOO-546-2739) FEATURES LOW BIAS CURRENT, LOW NOISE FET Input PROTECTED OUTPUT Thermal Shutoff FULLY PROTECTED INPUT Up to +150V WIDE SUPPLY RANGE +15V to +150V SECOND SOURCEABLE BB3583AM/JM APPLICATIONS HIGH VOLTAGE INSTRUMENTATION ELECTROSTATIC TRANSDUCERS & DEFLECTION PROGRAMMABLE POWER SUPPLIES UP TO 290V ANALOG SIMULATORS DESCRIPTION The PA83 is a high voltage operational amplifier designed for output voltage swings up to +145V with a dual (+) supply or 290V with a single supply. Its input stage is protected against transient and steady state overvoltages up to and including the supply rails. High accuracy is achieved with a cascode input circuit configuration. All internal biasing is referenced to a zener diode fed by a FET constant current source. As a result, the PA83 features an unprecedented supply range and excel- lent supply rejection. The output stage is biased in the class A/ B mode for linear operation. Internal phase compensation assures stability at all gain settings without need for external components. Fixed current limits protect these amplifiers against shorts to common at supply voltages up to 120V. For operation into inductive loads, two external flyback pulse protection diodes are recommended. A built-in thermal shutoff circuit prevents destructive overheating. However, a heatsink may be necessary to maintain the proper case temperature under normal operating conditions. This hybrid circuit utilizes beryllia (BeOQ) substrates, thick (cermet) film resistors, ceramic capacitors and silicon semi- conductor chips to maximize reliability, minimize size and give top performance. Ultrasonically bonded aluminum wires pro- vide reliable interconnections at all operating temperatures. The 8-pin TO-3 package is hermetically sealed and electrically isolated. The use of compressible thermal isolation washers and/or improper mounting torque voids product warranty. Please see General Operating Considerations. EXTERNAL CONNECTIONS NOTES: 1. Pin 8 not internally connected. 2. Input offset trimpot optional. Recommended value 100KQ . +150V GATED OSCILLATOR Li 1. Avec At SIMPLE PIEZO ELECTRIC TRANSDUCER DRIVE TYPICAL APPLICATION While piezo electric transducers present a complex imped- ance, they are often primarily capacitive at useful frequencies. Due to this capacitance, the speed limitation for a given transducer/amplifter combination may well stem from limited current drive rather than power bandwidth restrictions. With its drive capability of 75mA, the PA83 can drive transducers having up to 2nF of capacitance at 40kHz at maximum output voltage. In the event the transducer may be subject to shock or vibration, flyback diodes, voltage clamps or other protection networks must be added to protect the amplifier from high voltages which may be generated. EQUIVALENT SCHEMATIC APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 EMAIL ProdLit@ TeamApex.com C151PA83 e PA83A ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS SUPPLY VOLTAGE, +V, to -V; 300V OUTPUT CURRENT, within SOA Internally Limited POWER DISSIPATION, internal at T, = 25C" 17.5W INPUT VOLTAGE, differential +300V INPUT VOLTAGE, common mode +300V TEMPERATURE, pin solder - t0s max {solder} 300C TEMPERATURE, junction 150C. TEMPERATURE RANGE, storage -65 to +150C OPERATING TEMPERATURE RANGE, case 55 to +125C SPECIFICATIONS PAg3 PAS3A PARAMETER TEST CONDITIONS? MIN TYP MAX} MIN TYP MAX | UNITS INPUT OFFSET VOLTAGE, initial T, = 25C +15 +3 .5 +1 mv OFFSET VOLTAGE, vs. temperature Full temperature range +10 +25 +5 210 | uve OFFSET VOLTAGE, vs. supply Ty = 26C 5 4.2 nV OFFSET VOLTAGE, vs. time Ty = 25C +75 . BVANkh BIAS CURRENT. initial? T. = 25C 5 50 3 10 pA BiAS CURRENT, vs. supply T= 26C 01 * pay OFFSET CURRENT, initial? T. = 25C 2.5 +50 1.5 +10 pA OFFSET CURRENT, vs. supply T. = 25C +.01 * pay INPUT IMPEDANCE, DC T= 25C 10" . Q INPUT CAPACITANCE Full temperature range 6 * pF COMMON MODE VOLTAGE RANGE | Full temperature range +V5~10 , Vv COMMON MODE REJECTION, DC Full temperature range 130 * dB GAIN OPEN LOOP GAIN at 10Hz Te = 26C, A, = 2KQ 96 116 . * dB UNITY GAIN CROSSOVER FREQ. T. = 25C, RA, = 2KOQ 5 3 . MHz POWER BANDWIDTH Ty = 28C, A, = 10KQ 60 40 . kHz PHASE MARGIN Full temperature range 60 . OUTPUT VOLTAGE SWING*, full load Full temp. range, Ip = 75mA +V5-10] +V,-5 * * v VOLTAGE SWING* Fuil temp. range, Ip = 15mMA V5-5 | V5-3 * . v CURRENT, peak Ty = 25C 75 , mA CURRENT, short circuit T. = 25C 100 . mA SLEW RATE To = 25C, R, = 2KQ 20 30 * . Vius CAPACITIVE LOAD, unity gain Full temperature range 10 * nF CAPACITIVE LOAD, gain > 4 Full temperature range SOA * BF SETTLING TIME to .1% Ty. = 25C, R, = 2KQ, 10V step 12 . us POWER SUPPLY VOLTAGE T, = -55C to +125C 15 +150 | +150 . . . v CURRENT, quiescent T. = 26C 8 8.5 * . mA THERMAL RESISTANCE, AC, junction to case F > 60Hz 3.8 . CW RESISTANCE, DC, junction to case F < 60Hz 6 6.5 * * CW RESISTANCE, case to air 30 . CW TEMP. RANGE, case (PA83/PA83A) Meets full range specification -25 +85 . . C TEMP. RANGE, case (PA83J) Meets full range specification 0 70 SC NOTES: * The specification of PA83A is identical to the specification for PA83 in applicable column to the left. 1. Long term operation at the maximum junction temperature will result in reduced product life. Derate interna! power dissipation to achieve high MTTF. QAaARWN The power supply voltage for all tests is the TYP rating, unless otherwise noted as a test condition. Doubles for every 10C of temperature increase. +V, and V, denote the positive and negative supply rail respectively. Total V, is measured from +V, to Vg. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. 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 subject to temperatures in excess of 850C to avoid generating toxic fumes. APEX MICROTECHNOLOGY CORPORATION 5980 NORTH SHANNON ROAD * TUCSON. ARIZONA 85741 * USA APPLICATIONS HOTLINE: | (800) 546-2739 C152aoa PERFORMANCE PA83 e PA83 A = POWER DERATING 250 CURRENT LIMIT = OUTPUT VOLTAGE SWING a > . 2 g = 200 x x 3 a % 20 r= 150 a a = = os = TIS 8 wi 5 100 e 10 Ww ~~ Oo 2 ms, & [-~| x z 5 . = 3 50 w zZ PABY "*s g wooo 0 4 Zz oO 25 50 75 100 125 150 85 -25 0 26 50 75 10012 292 oO 20 40 60 80 100 120 TEMPERATURE, T (C) CASE TEMPERATURE, Tg (C) OUTPUT CURRENT I (mA) SMALL SIGNAL RESPONSE 0 PHASE RESPONSE 300 POWER RESPONSE ] Td R, =2KQ RL=2KQ) 1+Vg 1+ 1-Vg i= 300V @100 -30 q 200 3 = \ | 3 80 -60 c R= 2KQ < 5 >" 100 \ 2 60 6 -90 3 a = 5 wi = 60 \ a 40 2 -120 a NX 5 = > 14Vg5 1 +1-Vg 1 = 100V > 20 -150 5 \ a a 30 N a 0 ~180 3 IN ~20 ~210 15 1 10 100 1K 10K 100K 1M 10M 1 10 100 1K 10K .1M 1M 10M 50K 1M 2M 3M .5M.7M1M FREQUENCY, F (Hz) FREQUENCY, F (Hz) FREQUENCY, F (Hz) PULSE RESPONSE SLEW RATE VS. SUPPLY 20 INPUT NOISE 1.6 R ~ R, = 2K ~ AL=2KQ = = 4 S14 = 15 # = > < z i0N we 2 12 > Oo = ud < tu oO Fo @ 1.0 = 6 Oo a coat e 4 S 5 2 x 4 w a a a 4 <f = 5 4 = 3 3 a 6 Zz bE 6 Vy = 5V, t, =100ns =, Bo - 1 25 3050 100 180 200 250 300 10 400 1K 10K .1M TIME, t (ys) TOTAL SUPPLY VOLTAGE, Vg (V) FREQUENCY, F (Hz) 0 COMMON MODE REJECTION 0 POWER SUPPLY REJECTION = 300 COMMON MODE VOLTAGE 141 l4Vgl+1-Vg l= = nh o Q oO Q o a oo o 8 a o - oO Vs nN o wo o = a POWER SUPPLY REJECTION, PSR (dB) COMMON MODE VOLTAGE, Voy (Vp Re COMMON MODE REJECTION, CMR (dB) 10 100 1K 10K .1M 1M 1 10 100 1K 10K .1M 1M 10K 20K SOK 1M .2M .5M 1M FREQUENCY, F (Hz) FREQUENCY, F (Hz) FREQUENCY, F (Hz) 1 APEX MICROTECHNOLOGY CORPORATION + TELEPHONE (520) 690-8600 * FAX (520) 888-3329 * ORDERS (520) 690-8601 * EMAIL ProdLit@ TeamApex.com C153PA83 PA83A OPERATING CONSIDERATIONS GENERAL Please read the General Operating Considerations sec- tion, which covers stability, supplies, heatsinking, mounting, current limit, SOA interpretation, and specification interpreta- tion. Additional information can be found in the application notes. For information on the package outline, heatsinks, and mounting hardware, consult the Accessory and Package Mechanical Data section of the handbook. SAFE OPERATING AREA (SOA) The bipolar output stage of this high voltage amplifier has two distinct limitations. 1. The internal current limit, which limits maximum available output current. 2. The second breakdown effect, which occurs whenever the simultaneous collector current and collector-emitter voltage exceed specified limits. 200 fr = on o INTERNAL CURRENT LIMIT s 8 J, p o 8 OUTPUT CURRENT FROM +Vg OR Ve(mA) an Oo 20 80 100 120 150 200 250 300 INTERNAL VOLTAGE DROP, SUPPLY TO OUTPUT (Vv) The SOA curves combine the effect of these limits. For a given application, the direction and magnitude of the output current should be calculated or measured and checked against the SOA curves. This is simple for resistive loads but more complex for reactive and EMF generating loads. However, the following guidelines may save extensive analytical efforts: 1. The following capacitive and inductive loads are safe: iN, C(MAX) L(MAX) 150V 7F 1.5H 125V 2.0UF 2.5H 100V 5.uF 6.0H 75V 60uF 30H 50V ALL ALL 2. Short circuits to ground are safe with dual supplies up to 120V or single supplies up to 120V. 3. Short circuits to the supply rails are safe with total supply voltages up to 120V, 6.g. +60V. 4. The output stage is protected against transient flyback. However, for protection against sustained, high energy flyback, external fast-recovery diodes should be used. THERMAL SHUTDOWN PROTECTION The thermal protection circuit shuts off the amplifier wnen the substrate temperature exceeds approximately 150C. This allows heatsink selection to be based on normal operating conditions while protecting the amplifier against excessive junction temperature during temporary fault conditions. Thermal protection is a fairly slow-acting circuit and there- fore does not protect the amplifier against transient SOA violations (areas outside of the T, = 25C boundary). It is designed to protect against short-term fault conditions that result in high power dissipation within the amplifier. lf the conditions that cause thermal shutdown are not removed, the amplifier will oscillate in and out of shutdown. This will result in high peak power stresses, destroy signal integrity, and reduce the reliability of the device. INDUCTIVE LOADS Two external diodes as shown in Figure 1, are required to protect these amplifiers against flyback (kickback) pulses exceeding the supply voltages of the amplifier when driving inductive loads. For component selection, these external diodes must be very quick, such as ultra fast recovery diodes with no more than 200 nanoseconds of reverse recovery time. The diode will turn on to divert the flyback energy into the supply rails thus protecting the output transistors from destruc- tion due to reverse bias. Anote of caution about the supply. The energy of the flyback pulse must be absorbed by the power supply. As a result, a transient will be superimposed on the supply voltage, the magnitude of the transient being a function of its transient impedance and current sinking capability. If the supply voltage plus transient exceeds the maximum supply rating or if the AC impedance of the supply is unknown, it is best to clamp the output and the supply with a zener diode to absorb the transient. 4V5 _>| IN4936 OR MUR140 V5 FIGURE 1. PROTECTION, INDUCTIVE LOAD PAU REV. K MAY 1996 1996 Apex Microtechnology Corp C154PA83M APEX MICROTECHNOL OGY CORPORATION + APPLICATIONS HOTLINE 800 546-APEXK (800. 546-2 7539) SG PARAMETER SYMBOL | TEMP. | POWER | TEST CONDITIONS MIN MAX | UNITS 1 Quiescent Current lo 25C | +150V | V,,=0, A, = 100 8.5 mA 1 Input Offset Voltage Vos 25C | +150V | V,,=0, Ay = 100 3 mV 1 Input Offset Voltage Vos 25C 415V V, =0, A, = 100 5.7 mV 1 Input Bias Current, +IN +l, 25C | +150V | Vy= 50 pA 1 Input Bias Current, -IN lp 25C | +150V | V,=0 50 pA 1 Input Offset Current los 25C | +150V | Vz =0 50 pA 3 Quiescent Current lo 5C | +150V | V,=0, A,= 100 10 mA 3 input Offset Voltage Vos -55C | +150V | V, =0, A, =100 5 mV 3 Input Offset Voltage Vos -55C | +15V Vin = 0, Ay= 100 7.7 mV 3. Input Bias Current, +IN tle ~55C | +150V | V,=0 50 pA 3. Input BiasGurrent. -IN le 55C | +150V | V,,=0 50 pA 3. Input Offset Current los 55C | +150V | Vy= 50 pA 2 Quiescent Current Ig 125C | +150V | V,=0, A,= 100 10 mA 2 Input Offset Voltage Vos 125C | +150V | V,=0, Ay = 100 5.5 mV 2 Input Offset Voltage Vos 125C | +15V Vin = 0, Ay = 100 8.2 mV 2 Input Bias Current, +IN +ls 125C | +150V | Vy =0 10 nA 2. Input Bias Current, -IN ls 125C | +150V | Vy=0 10 nA 2 Input Offset Current log 125C | +150V | Vay= 10 nA 4 Output Voltage, I, = 75mMA Vo 25C +85V L=1K 75 v 4 Output Voltage, I, = 29mMA V5 25C | +150V | R,=5K 145 Vv 4 Current Limits loz 25C | +30V R, = 1002 75 125 mA 4 Stability/Noise Ey 26C | +150V | R_=5K, A, =1, C, = 10nF 1 mv 4 Slew Rate SR 25C | +150V | R,=5K 20 80 Vius 4 Open Loop Gain Ao. 25C ; +150V | R, = 5K, F=10Hz 96 dB 4 Common Mode Rejection CMR 25C | +32.5V | RA, = 5K, F = DC, V,, = +22.5V 90 dB 6 Output Voltage, ip = 40MA Vo -55C | +45V | RL =1K 40 Vv 6 Output Voltage, fp = 29mA Vo ~55C | +150V | R, =5K 145 Vv 6 Stability/Noise Ey 56C | 150V | A, =5K, Ay = 1, C, = 10nF 1 mV 6 Slew Rate SR -55C | +150V | AR, = 5K 20 80 Vins 6 Open Loop Gain Ao. -55C | +150V | R, = 5K, F = 10Hz 96 dB 6 Common Mode Rejection CMR -55C | +32.5V | R, =5K, F = DC, Voy = 22.5V 90 dB 5 Qutput Voltage, |, = 40mA Vo 125C | +45V R, = 1K { 40 Vv 5 Output Voltage. lp = 29mA Vo 125C | +150V | R, =5K 145 Vv 5 Stability/Noise Ey 125C | +150V | R,=5K, A,=1, C, = 10nF 1 mV 5 Slew Rate SR 125C | +150V | R_=5K 20 80 V/us 5 Open Loop Gain Aor 125C | +150V | R,=5K, F = 10Hz 96 dB 5 Common Mode Rejection CMR 125C | +32.5V | R, =5K, F = DC, Voy = 22.5V 90 dB BURN IN CIRCUIT 100KQ * These components are used to stabilize device due to poor high frequency characteristics of burn in board. ** Input signals are calculated to result in internal power dissipation of approximately 2.1W at case temperature = 125C. 602 PAB3ML REV F MAY 1996 2 1996 Apex Microtechnolugy Corp. C155