POWER OPERATIONAL AMPLIFIERS PA16 • PA16A HTTP://WWW.APEXMICROTECH.COM M I C R O T E C H N O L O G Y (800) 546-APEX (800) 546-2739 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 TYPICAL APPLICATION 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 interconnections at all operating temperatures. EQUIVALENT SCHEMATIC 4 R1 R2 R5 R3 D1 Q1 R6 Q2 R7 100K +12 RCL+ .47µF 16K .27 Ω 1K PA16 .001µF IN .47µF 3.2 Ω 16W RCL– 16K .27 Ω –12 LOW INTERNAL LOSS MAXIMIZES EFFICIENCY 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 network. The 0.27 ohm current limit resistors provide protection in the event of an output short circuit. 10 R4 Q3 Q4 2 12 R15 A1 EXTERNAL CONNECTIONS 1 2 –IN +IN 3 4 5 6 Package: SIP03 7 8 9 10 11 12 1 Q5 8 Q7 R9 –R CL Q6 R8 R10 R13 R12 Q8 +VS OUT –VS R14 +R CL D2 R11 6 APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected] ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PA16 • PA16A SUPPLY VOLTAGE, +VS to –VS OUTPUT CURRENT, within SOA POWER DISSIPATION, internal1 INPUT VOLTAGE, differential INPUT VOLTAGE, common mode TEMPERATURE, pin solder - 10s TEMPERATURE, junction1 TEMPERATURE RANGE, storage OPERATING TEMPERATURE RANGE, case ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PARAMETER 38V 5A 62.5W ±VS –5V ±VS –2V 300°C 150°C –65 to +150°C –55 to +125°C PA16 TEST CONDITIONS 2, 6 MIN PA16A TYP MAX ±5 ±10 ±10 ±6 50 ±10 ±50 MIN TYP MAX UNITS ±1 * * * 25 ±3 ±25 * * * * * mV µV/°C µV/V µV/W pA pA/°C pA/V pA pA/°C GΩ pF V V dB * * * * * dB dB MHz kHz ° * * V V A µs V/µs INPUT OFFSET VOLTAGE, initial OFFSET VOLTAGE, vs. temperature OFFSET VOLTAGE, vs. supply OFFSET VOLTAGE, vs. power BIAS CURRENT, initial BIAS CURRENT, vs. temperature BIAS CURRENT, vs. supply OFFSET CURRENT, initial OFFSET CURRENT, vs. temperature INPUT IMPEDANCE, DC INPUT CAPACITANCE COMMON MODE VOLT. RANGE5, Pos. COMMON MODE VOLT. RANGE5, Neg. COMMON MODE REJECTION, DC TC = 25°C Full temperature range TC = 25°C TC = 25°C TC = 25°C TC = 85°C TC = 25°C TC = 25°C TC = 85°C TC = 25°C TC = 25°C Full temperature range Full temperature range Full temperature range .01 25 +VS –6 –VS +6 70 200 200 * 15 100 100 1000 3 +VS –3 –VS +5 100 * * * 100 * 50 * GAIN OPEN LOOP GAIN at 10Hz OPEN LOOP GAIN at 10Hz GAIN BANDWIDTH PRODUCT at 1MHz POWER BANDWIDTH PHASE MARGIN TC = 25°C, 1kΩ load Full temp. range, 10kΩ load TC = 25°C, 10Ω load TC = 25°C, 10Ω load Full temp. range, 10Ω load 86 103 100 4.5 350 30 * OUTPUT VOLTAGE SWING3 VOLTAGE SWING3 CURRENT, peak SETTLING TIME to .1% SLEW RATE CAPACITIVE LOAD HARMONIC DISTORTION SMALL SIGNAL rise/fall time SMALL SIGNAL overshoot TC = 25°C, IO = 5A, RCL = .08Ω Full temp. range, IO = 2A TC = 25°C TC = 25°C, 2V step TC = 25°C Full temp. range, AV > 10 PO = 5W, F = 1kHz, RL = 4Ω RL = 10Ω, AV = 1 RL = 10Ω, AV = 1 ±VS –4 ±VS –3 ±VS –2 ±VS –1.2 5 .6 13 20 SOA .028 100 10 ±VS –3 ±VS –1.2 * * * * * * * * % ns % POWER SUPPLY VOLTAGE CURRENT, quiescent Full temperature range TC = 25°C ±7 ±15 27 ±19 40 1.4 1.8 30 1.6 2.0 * * * * * V mA * * * * * °C/W °C/W °C/W °C THERMAL RESISTANCE, AC junction to case4 RESISTANCE, DC junction to case RESISTANCE, junction to air TEMPERATURE RANGE, case NOTES: * 1. 2. 3. 4. 5. 6. CAUTION F > 60Hz F < 60Hz Meets full range specifications –25 +85 * * The specification of PA16A is identical to the specification for PA16 in applicable column to the left. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to achieve high MTTF. The power supply voltage for all specifications is the TYP rating unless otherwise noted as a test condition. +VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz. Exceeding CMV range can cause the output to latch. Full temperature specifications are guaranteed but not 100% tested. The exposed substrate contains beryllia (BeO). Do not crush, machine, or subject to temperatures in excess of 850°C to avoid generating toxic fumes. APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 PA16 • PA16A POWER DERATING OUTPUT VOLTAGE SWING 60 50 40 30 20 10 0 0 25 50 75 100 125 CASE TEMPERATURE, TC (°C) 3.0 3.0 2.5 2.5 TC = 25 to 85°C 2.0 1.5 ±VO 1.0 .5 0 SMALL SIGNAL RESPONSE 60 40 0 –180 | +VS | + | –VS | = 36V 23 18 13 7.8 4 1 .25 5 45 65 85 105 25 CASE TEMPERATURE, TC (°C) 120 COMMON MODE REJECTION 100 80 60 40 20 1 INPUT NOISE 3 10 100 1K 10K .1M 1M 10M FREQUENCY, F (Hz) SETTLING TIME 25 2 TIME, t (µS) 2.5 20 15 V NO L D OA 100 1K 10K FREQUENCY, F (Hz) .1M 100 +VS 80 60 40 –VS 20 0 10 100 1K 10K .1M 1M 10M FREQUENCY, F(Hz) QUIESCENT CURRENT 1.02 1.5 0 120 1.04 D OA OL N mV 10 AD 0 Ω LO 10mV 1 .5 10 10 POWER SUPPLY REJECTION 140 1.06 1m 1 .2M .3M .5M .7M 1M FREQUENCY, F (Hz) 1.08 35 30 6 .1M 10 100 1K 10K .1M 1M 10M FREQUENCY, F (Hz) POWER SUPPLY REJECTION, PSR (dB) 16 COMMON MODE REJECTION, CMR (dB) BIAS CURRENT 64 .06 –15 1 10 100 1K 10K .1M 1M 10M FREQUENCY, F (Hz) | +VS | + | –VS | = 30V 10 –210 1 POWER RESPONSE 30 –120 –150 NORMALIZED BIAS CURRENT, I B (X) 0 –25 50 0 25 75 100 125 CASE TEMPERATURE, TC (°C) 5 –90 20 INPUT NOISE VOLTAGE, en (nV/ ÷ Hz) .5 OUTPUT VOLTAGE, VO (VPP ) –60 PHASE, Φ (°) 80 RCL = 0.62 Ω 1.0 NORMALIZED QUIESCENT CURRENT IQ(X) OPEN LOOP GAIN, AOL (dB) –30 40 1.5 0 100 256 1 2 3 4 OUTPUT CURRENT, I O(A) RCL = 0.3 Ω 2.0 PHASE RESPONSE 120 –20 CURRENT LIMIT 3.5 CURRENT LIMIT, I LIM (A) 70 SATURATION VOLTAGE, VS –VO (V) INTERNAL POWER DISSIPATION, PD(W) TYPICAL PERFORMANCE GRAPHS 1 2 3 4 5 6 7 8 OUTPUT CHANGE FROM ZERO, VOLTS 1 .98 .96 .94 .92 –25 0 25 50 75 100 125 CASE TEMPERATURE, Tc(°C) APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL [email protected] OPERATING CONSIDERATIONS PA16 • PA16A AV = 10 VPS = ±15V PO = .5W RL = 4 PO = 5W RL = 4 0.01 PO = 25W RL = 2 0.001 .1K 1.0K 10K FREQUENCY, F (Hz) PULSE RESPONSE 15 OUTPUT VOLTAGE, VO (V) 100K VIN = ±1V, tr = 100ns LOAD = 10 Ω 10 5 0 –5 Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heat sinking, mounting, current limit, SOA interpretation, and specification interpretation. Visit www.apexmicrotech.com for design tools that help automate tasks such as calculations for stability, internal power dissipation, current limit; heat sink selection; Apex’s complete Application Notes library; Technical Seminar Workbook; and Evaluation Kits. SAFE OPERATING AREA (SOA) The SOA curves combine the effect of all limits for this Power Op Amp. 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. The following guidelines may save extensive analytical efforts: –10 –15 1 0 3 4 2 TIME, t (µS) OUTPUT VOLTAGE, VO (V) Tc 4.0 3.0 Tc =6 0° =8 5° 2.0 1.5 1.0 C C 0.8 0.6 0.5 6 7 8 9 10 15 20 25 30 38 SUPPLY TO OUTPUT DIFFERENTIAL VOLTAGE VS –VO (V) SHORT TO ±VS C, L OR EMF LOAD ±VS VIN = ±.2V, tr = 50ns .2 SHORT TO COMMON 18V .9A 1.8A 15V 1.0A 2.1A 10V 1.6A 3.2A These simplified limits may be exceeded with further analysis using the operating conditions for a specific application. .1 0 –.1 CURRENT LIMIT –.2 Proper operation requires the use of two current limit resistors, connected as shown in the external connection diagram. The minimum value for RCL is 0.12 ohm, however for optimum reliability it should be set as high as possible. Refer to the “General Operating Considerations” section of the handbook for current limit adjust details. –.3 DELTA GAIN WITH LOAD, ∆ A (dB) 5.0 The amplifier can handle any EMF generating or reactive load and short circuits to the supply rails or shorts to common if the current limits are set as follows at TC = 85°C. 5 PULSE RESPONSE .3 OUTPUT CURRENT FROM +VS OR –VS (A) 0.1 GENERAL HARMONIC DISTORTION wn do s ak re 5m db t= on ec es tat ys ad ste DISTORTION, THD (%) 1 0 .5 1.0 TIME, t (µS) 1.5 LOADING EFFECTS 0 RCL = –.3 IO = 150mA –.6 –.9 IO = 400mA –1.2 –1.5 100 10K 1K FREQUENCY, F (Hz) .1M .65 ILIM (A) 0.01 DEVICE MOUNTING The case (mounting flange) is electrically isolated and should be mounted directly to a heatsink with thermal compound. Screws with Belville spring washers are recommended to maintain positive clamping pressure on heatsink mounting surfaces. Long periods of thermal cycling can loosen mounting screws and increase thermal resistance. Since the case is electrically isolated (floating) with respect to the internal circuits it is recommended to connect it to common or other convenient AC ground potential. This data sheet has been carefully checked and is believed be reliable, however, no responsibility assumed forARIZONA possible inaccuracies All specifications are subject to change without notice. APEX MICROTECHNOLOGY CORPORATION • to 5980 NORTH SHANNON ROAD •isTUCSON, 85741 •or omissions. USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 PA16U REV. C FEBRUARY 2001 © 2001 Apex Microtechnology Corp.