CA3094, CA3094A, CA3094B

Transcription

1 CA9, CA9A, CA9B Data Sheet April 999 File Number 9. MHz, High Output Current Operational Transconductance Amplifier (OTA) The CA9 is a differential input power control switch/amplifier with auxiliary circuit features for ease of programmability. For example, an error or unbalance signal can be amplified by the CA9 to provide an onoff signal or proportional control output signal up to ma. This signal is sufficient to directly drive high current thyristors, relays, DC loads, or power transistors. The CA9 has the generic characteristics of the CA operational amplifier directly coupled to an integral Darlington power transistor capable of sinking or driving currents up to ma. The gain of the differential input stage is proportional to the amplifier bias current (I ABC ), permitting programmable variation of the integrated circuit sensitivity with either digital and/or analog programming signals. For example, at an I ABC of µa, a mv change at the input will change the output from to µa (typical). The CA9 is intended for operation up to V and is especially useful for timing circuits, in automotive equipment, and in other applications where operation up to V is a primary design requirement (see Figures, 9 and in Typical Applications text). The CA9A and CA9B are like the CA9 but are intended for operation up to V and V, respectively (single or dual supply). Ordering Information PAT NUMBE (BAND) TEMP. ANGE ( o C) PACKAGE CA9AT, BT to Pin Metal Can T.C CA9E, AE to Ld PDIP E. PKG. NO. CA9M, BM to Ld SOIC M. Features CA9E, M for Operation Up to V CA9AT, E, M for Operation Up to V CA9BT, M for Operation Up to V Designed for Single or Dual Power Supply Programmable: Strobing, Gating, Squelching, AGC Capabilities Can Deliver W (Average) or W (Peak) to External Load (in Switching Mode) High Power, Single Ended Class A Amplifier will Deliver Power Output of.w (.W Device Dissipation) Total Harmonic Distortion (THD) at.w in Class A Operation.% (Typ) Applications Error Signal Detector: Temperature Control with Thermistor Sensor; Speed Control for Shunt Wound DC Motor Over Current, Over Voltage, Over Temperature Protectors Dual Tracking Power Supply with CA Wide Frequency ange Oscillator Analog Timer Level Detector Alarm Systems Voltage Follower amp Voltage Generator High Power Comparator Ground Fault Interrupter (GFI) Circuits Pinouts EXT. FEQUENCY COMPENSATION O INHIBIT INPUT DIFFEENTIAL VOLTAGE INPUTS GND (V IN DUAL SUPPLY OPEATION) CA9 (PDIP, SOIC) TOP VIEW SINK (COLLECTO) V DIVPUT (EMITTE) I ABC CUENT POGAMMABLE INPUT (STOBE O AGC) EXT. FEQUENCY COMPENSATION O INHIBIT INPUT DIFFEENTIAL VOLTAGE INPUTS NOTE: Pin is connected to case. CA9 (METAL CAN) TOP VIEW SINK (COLLECTO) TAB V GND (V IN DUAL SUPPLY OPEATION) DIVPUT (EMITTE) I ABC CUENT POGAMMABLE INPUT (STOBE O AGC) CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. INTESIL or Copyright Intersil Corporation 999

2 CA9, CA9A, CA9B Absolute Maximum atings Supply Voltage (Between V and V Terminals) CA V CA9A V CA9B V Differential Input Voltage (Terminals and, Note ) V DC Input Voltage V to V Input Current (Terminals and ) ±ma Amplifier Bias Current (Terminal ) ma Average Output Current ma Peak Output Current ma Thermal Information Thermal esistance (Typical, Note ) θ JA ( o C/W) θ JC ( o C/W) PDIP Package N/A SOIC Package N/A Metal Can Package Maximum Junction Temperature (Metal Can Package) o C Maximum Junction Temperature (Plastic Package) o C Maximum Storage Temperature ange o C to o C Maximum Lead Temperature (Soldering s) o C (SOIC Lead Tips Only) Operating Conditions Temperature ange o C to o C CAUTION: Stresses above those listed in Absolute Maximum atings may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.. Exceeding this voltage rating will not damage the device unless the peak input signal current (ma) is also exceeded.. θ JA is measured with the component mounted on an evaluation PC board in free air. Electrical Specifications T A = o C for Equipment Design. Single Supply V = V, Dual Supply V SUPPLY = ±V, I ABC = µa Unless Otherwise Specified PAAMETE SYMBOL TEST CONDITIONS MIN TYP MAX UNITS INPUT PAAMETES Input Offset Voltage V IO T A = o C.. mv T A = o C to o C. mv Input Offset Voltage Change V IO Change in V IO between I ABC = µa and I ABC = µa. mv Input Offset Current I IO T A = o C.. µa T A = o C to o C. µa Input Bias Current I I T A = o C.. µa T A = o C to o C. µa Device Dissipation P D I OUT = ma mw Common Mode ejection atio CM db Common Mode Input Voltage ange V IC V = V (High). V V = V (Low).. V V = V. V V = V. V Unity Gain Bandwidth f T I C =.ma, V CE = V, I ABC = µa MHz Open Loop Bandwidth at db Point BW OL I C =.ma, V CE = V, I ABC = µa khz Total Harmonic Distortion THD P D = mw. % (Class A Operation) P D = mw. % Amplifier Bias Voltage (Terminal to Terminal ) V ABC. V Input Offset Voltage Temperature Coefficient V IO / T µv/ o C Power Supply ejection V IO / V µv/v /F Noise Voltage E N f = Hz, I ABC = µa nv/ Hz /F Noise Current I N f = Hz, I ABC = µa. pa/ Hz Differential Input esistance I I ABC = µa.. MΩ Differential Input Capacitance C I f = MHz, V = V. pf

3 CA9, CA9A, CA9B Electrical Specifications T A = o C for Equipment Design. Single Supply V = V, Dual Supply V SUPPLY = ±V, I ABC = µa Unless Otherwise Specified (Continued) PAAMETES (Differential Input Voltage = V) Peak Output Voltage With Q ON V OM V = V, L = kω to GND V (Terminal ) With Q OFF V OM.. V Peak Output Voltage Positive V OM V = V, V = V, L = kω to V V (Terminal ) Negative V OM.99.9 V Peak Output Voltage With Q OFF V OM V = V, L = kω to V V (Terminal ) With Q ON V OM. V Peak Output Voltage Positive V OM V = V, V = V,.9.99 V (Terminal ) Negative V OM L = kω to V.9 V CollectortoEmitter Saturation Voltage (Terminal ) Output Leakage Current (Terminal to Terminal ) PAAMETE SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Composite Small Signal Current Transfer atio (Beta) (Q and Q ) V CE(SAT) V = V, I C = ma, Terminal Grounded.. V V = V µa h FE V = V, V CE = V, I C = ma,, Output Capacitance Terminal C O f = MHz, All emaining Terminals Tied. pf Terminal to Terminal pf TANSFE PAAMETES Voltage Gain A V = V, I ABC = µa, V OUT = V,,, V/V L = kω db Forward Transconductance to Terminal g M µs Slew ate (Open Positive Slope S I ABC = µa, L = kω V/µs Loop) Negative Slope V/µs Unity Gain (NonInverting Compensated) I ABC = µa, L = kω. V/µs Schematic Diagram EXTENAL FEQUENCY COMPENSATION O INHIBIT INPUT V INPUTS Q D Q D Q Q D D Q kω MODE TEM INV NON INV Source Sink DIFFEENTIAL VOLTAGE INPUT DIFFEENTIAL VOLTAGE INPUT AMPLIFIE BIAS INPUT Q Q Q Q 9 Q Q I ABC D D kω V Q SINK Q SOUCE (DIVE)

4 CA9, CA9A, CA9B Operating Considerations The Sink Output (Terminal ) and the Drive Output (Terminal ) of the CA9 are not inherently current (or power) limited. Therefore, if a load is connected between Terminal and Terminal (V or Ground), it is important to connect a current limiting resistor between Terminal and Terminal (V) to protect transistor Q under shorted load conditions. Similarly, if a load is connected between Terminal and Terminal (V), the current limiting resistor should be connected between Terminal and Terminal or ground. In circuit applications where the emitter of the output transistor is not connected to the most negative potential in the system, it is recommended that a Ω current limiting resistor be inserted between Terminal and the V supply. /F Noise Measurement Circuit When using the CA9, A, or B audio amplifier circuits, it is frequently necessary to consider the noise performance of the device. Noise measurements are made in the circuit shown in Figure. This circuit is a db, noninverting amplifier with emitter follower output and phase compensation from Terminal to ground. Source resistors ( S ) are set to Ω or MΩ for E noise and I noise measurements, respectively. These measurements are made at frequencies of Hz, Hz and khz with a Hz measurement bandwidth. Typical values for /f noise at Hz and µa I ABC are: E N = nv Hz and I N =.pa Hz. Test Circuits V kω CA9 9.9kΩ. Input Offset Voltage: V IO =.. For Power Supply ejection Test: () vary V by V; then () vary V by V.. Equations: E OUT E OUT () V ejection = Ω Ω kω kω pf E OUT E OUT () V ejection =. Power Supply ejection: ( db) = log. V EJECTION V V Maximum eading of Step or Step FIGUE. INPUT OFFSET VOLTAGE AND POWE SUPPLY EJECTION TEST CICUIT V MΩ ABC CA9 kω Ω.µF MΩ V V kω CA9A V E. P DISSIPATION = (V)(I) OUT. I OS = VOLTS AMPS NOTE: I I I = FIGUE. INPUT OFFSET CUENT TEST CICUIT FIGUE. INPUT BIAS CUENT TEST CICUIT

5 CA9, CA9A, CA9B Test Circuits (Continued) V.kΩ Ω Ω V CM.V TO.V 9.9kΩ Ω CA9 kω pf kω kω 9. CM = V.. Input Voltage ange for CM = V to V.. CM (db) = log V. V FIGUE. COMMON MODE ANGE AND EJECTION ATIO TEST CICUIT I ABC V kω V V S V.kΩ S (NOTE) Ω 9Ω kω Ω I ABC CA9A Ω I ABC (µa) S (NOTE) C COMP (pf) CA9A kω C C V NOTE: S = MΩ (/F Noise Current Test). S = Ω (/F Noise Voltage Test). (MS) Ω Ω S (Ω) I ABC (µa) K K M V L = kω FIGUE. /F NOISE TEST CICUIT V FIGUE. OPEN LOOP GAIN vs FEQUENCY TEST CICUIT V I ABC kω V V kω kω CA9A kω ±V kω CA9A kω kω V FIGUE. OPEN LOOP SLEW ATE vs I ABC TEST CICUIT Ω.µF V FIGUE. SLEW ATE vs NONINVETING UNITY GAIN TEST CICUIT

6 CA9, CA9A, CA9B Test Circuits (Continued) VAC V V = V LOAD kω CA9A (NOTE ) S D C CA9A S MT MT Ω kω COMMON CLOSED LOOP GAIN (db) C C C (kω) V (kω) (kω). FIGUE 9. PHASE COMPENSATION TEST CICUIT. C =.µf D = N9 =.MΩ = min. =.MΩ = min. = MΩ = hrs. = MΩ = hrs. =.kω = kω =.kω =.kω. Potentiometer required for initial time set to permit device interconnecting. Time variation with temperature <.%/ o C. FIGUE. PESETTABLE ANALOG TIME S 9V V V Time = hr. S Set to Application Information For additional application information, refer to Application Note AN, Some Applications of a Programmable Power/Switch Amplifier IC and AN An IC Operational Transconductance Amplifier (OTA) with Power Capability. Design Considerations The selection of the optimum amplifier bias current (I ABC ) depends on:. The Desired Sensitivity The higher the I ABC, the higher the sensitivity, i.e., a greater drive current capability at the output for a specific voltage change at the input.. equired Input esistance The lower the I ABC, the higher the input resistance. If the desired sensitivity and required input resistance are not known and are to be experimentally determined, or the anticipated equipment design is sufficiently flexible to tolerate a wide range of these parameters, it is recommended that the equipment designer begin his calculations with an I ABC of µa, since the CA9 is characterized at this value of amplifier bias current. The CA9 is extremely versatile and can be used in a wide variety of applications.

7 CA9, CA9A, CA9B Typical Applications E IN Z Z CA9 (NOTE) E IN CA9 (NOTE) Z here = f depends on the characteristics of Z and Z E Z IN Where =E IN NOTE: In singleended output operation, the CA9 may require a pull up or pull down resistor. FIGUE A. INVETING OP AMP FIGUE B. NONINVETING MODE, AS A FOLLOWE FIGUE. APPLICATION OF THE CA9 VOLTAGE A /V VOLTAGE AT TEMINAL V = V S C A I I N9 V kω kω ABC kω CA9 kω PULL UP Problem: To calculate the maximum value of required to switch a ma output current comparator Given: I ABC = µa, ABC =.MΩ V µa I I = na at I ABC = µa (from Figure ) I I =µa can be determined by drawing a line on Figure through I ABC = µa and I B = na parallel to the typical T A = o C curve. Then: I I = na at I ABC = µa V V MAX = = MΩ at T na A = o C MAX = MΩ = MΩ at T A = o C TIME DELAY (s) = C (APPOX.) atio of I I at T A = o CtoI I at T A = o C for any given value of I ABC FIGUE. C TIME A V V.µF INPUT A V DC kω B kω N9 kω kω C kω MΩ D.MΩ MΩ CA9 kω C.µF E LOAD kω B C D V E / V On a negative going transient at input (A), a negative pulse at C will turn on the CA9, and the output (E) will go from a low to a high level. At the end of the time constant determined by C,,,, the CA9 will return to the off state and the output will be pulled low by LOAD. This condition will be independent of the interval when input (A) returns to a high level. FIGUE. C TIME TIGGEED BY EXTENAL NEGATIVE PULSE

8 CA9, CA9A, CA9B Typical Applications (Continued) V DC.MΩ CA9 kω MIN MΩ MAX TYPE N9 Ω kω kω kω V kω C C.µF PAPE O MYLA kω kω N9 C CA9 LINE ms s. = MΩ, C = µf.. Time Constant: t C x.. Pulse Width: ω K(C /C). CUENT INPUT O VOLTAGE INPUT FIGUE. FEE UNNING PULSE GENEATO FIGUE. CUENT O VOLTAGE CONTOLLED OSCILLATO V kω kω kω P kω C kω pf kω CA9A V Ω LED NOTE: kω.kω C kω If: =., pf kω f OUT = ( C) ln CA9A f OUT = C V kω f OUT khz FIGUE. SINGLE SUPPLY ASTABLE MULTIVIBATO FIGUE. DUAL SUPPLY ASTABLE MULTIVIBATO 9 Mylar is a trademark of E.I. Dupont de Nemours

9 CA9, CA9A, CA9B Typical Applications (Continued) V kω INPUT (NOTE ) kω kω kω V INPUT kω A kω B kω CA9 kω CA9A kω kω kω V B 9. Upper Threshold = [ V ]. A B A. =.. ± Threshold = [ ± Supply]. B. B Lower Threshold = [ V ]. B A B FIGUE A. DUAL SUPPLY FIGUE B. SINGLE SUPPLY FIGUE. COMPAATOS (THESHOLD DETECTOS) DUAL AND SINGLE SUPPLY TYPES TYPE DF.MΩ N9 Ω µf V PTC TEMP. SENSO kω kω.kω HEATE MT kω V Hz V Hz kω kω TEMP. SET N9 CA9 G MT.µF kω kω FO NTC SENSO, INTECHANGE POSITION OF SENSO AND. NOTE: All esistors are /W. FIGUE 9. TEMPEATUE CONTOLLE

10 CA9, CA9A, CA9B Typical Applications (Continued) V INPUT (NOTE ) CAA VOLTAGE EG. NOTE.Ω V EG. EF..V.µF kω V INPUT (NOTE ).µf.kω Ω kω CA9A kω.kω kω ±%.µf COMMON ETUN V EG.. V Input ange = 9V to V for V output.. V Input ange = V to V for V output.. Max I OUT = ±ma.. egulation: Max Line = V OUT [ V OUT ( Initial) ] V =.% V IN Max Load = V OUT V OUT ( Initial) =.% V OUT (I L from ma to ma) kω ±% FIGUE. DUAL VOLTAGE TACKING EGULATO TIP mv ANGE ma kω V Ω. kω I ABC µa.mω V I A µa Ω I LOAD VOLTS mv TYPICAL CICUIT TIPS ON POSITIVE PEAKS WILL SWITCH WITHIN. CYCLES GOUND FAULT SIGNAL Hz VOLTAGE BETWEEN TEMINALS AND VOLTAGE BETWEEN TEMINALS AND (ADJUSTABLE WITH TIP ) kω (NOTE ) L C.µF C.µF (NOTE ) kω kω CA9B kω.µf CICUIT BEAKE CONTOL SOLENOID t. Differential current sensor provides mv signal ma of unbalance (Trip) current.. All esistors are / Watt, ±%.. C selected for db point at Hz.. C = AC bypass. 9. Offset adj. included in TIP.. Input impedance from to = kω.. With no input signal Terminal (output) at V. FIGUE. GOUND FAULT INTEUPTE (GFI) AND WAVEFOMS PETINENT TO GOUND FAULT DETECTO

11 CA9, CA9A, CA9B Typical Applications (Continued) TEBLE BOOST (CW) kω CUT (CCW).µF Ω D D N9 V.µF Ω Ω INPUT.µF C (NOTES, ).µf.µf VOLUME Ω µf kω CA9B. µf.pf Ω LEAD TO Ω W Ω W Ω Ω µf Q N9 Q Q THEMAL COMPENSATION NETWOK N9.Ω.Ω N µf µf Ω Ω V D D D D µh Ω L Ω.MΩ (NOTES, ) V Hz STANCO NO. P9 O EQUIVALENT (VAC TO.VCT AT A) OPTIONAL THEMAL COMPENSATION NETWOK µf kω.µf C.µF.Ω BOOST kω CUT (CW) (CCW) BASS kω JUMPE (NOTES, ) N9 Power Output (Ω load, Tone Control Set at Flat ) Music (at % THD, egulated Supply) W Continuous (at.% IMD, Hz and khz Mixed in a : atio, Unregulated Supply) See Figure in AN W Total Harmonic Distortion At W, Unregulated Supply % At W, Unregulated Supply % Voltage Gain dB Hum and Noise (Below Continuous Power Output) dB TYPICAL PEFOMANCE DATA FO W AUDIO AMPLIFIE CICUIT Input esistance kω Tone Control ange see Figure 9 in AN. For standard input: Short C ; = kω,c =.µf; remove.. For ceramic cartridge input: C =.µf, =.MΩ, remove jumper from C ; leave. FIGUE. W AUDIO AMPLIFIE CICUIT FEATUING TUE COMPLEMENTAY SYMMETY STAGE WITH CA9 IN DIVE STAGE

12 CA9, CA9A, CA9B Typical Performance Curves INPUT OFFSET VOLTAGE (mv) V = V, V = V o C 9 o C o C o C o C 9 o C o C o C o C o C. AMPLIFIE BIAS CUENT (µa) INPUT OFFSET CUENT (na). V = V, V = V o C o C o C... AMPLIFIE BIAS CUENT (µa) FIGUE. INPUT OFFSET VOLTAGE vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL ) FIGUE. INPUT OFFSET CUENT vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL ) V = V, V = V T A = o C INPUT BIAS CUENT (na)..µa o C o C o C DEVICE DISSIPATION (µw) V = V, V = V V = V, V = V V = V, V = V.. AMPLIFIE BIAS CUENT (µa) FIGUE. INPUT BIAS CUENT vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL ).. AMPLIFIE BIAS CUENT (µa) FIGUE. DEVICE DISSIPATION vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL ) AMPLIFIE SUPPLY CUENT (µa). V = V, V = V o C o C o C T A = o C o C AMPLIFIE BIAS CUENT (µa) o C... COMMON MODE INPUT VOLTAGE (V) V = V, V = V T A = o C V CM V CM... AMPLIFIE BIAS CUENT (µa) FIGUE. AMPLIFIE SUPPLY CUENT vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL ) FIGUE. COMMON MODE INPUT VOLTAGE vs AMPLIFIE BIAS CUENT (I ABC, TEMINAL )

13 CA9, CA9A, CA9B Typical Performance Curves (Continued) /F NOISE VOLTAGE (nv/ Hz) V = V, V = V S = Ω, T A = o C FO TEST CICUIT, SEE FIGUE µa µa I ABC = µa /F NOISE CUENT (pa/ Hz). V = V, V = V S = MΩ, T A = o C FO TEST CICUIT, SEE FIGUE µa I ABC = µa µa FEQUENCY (Hz) FIGUE 9. /F NOISE VOLTAGE vs FEQUENCY. FEQUENCY (Hz) FIGUE. /F NOISE CUENT vs FEQUENCY COLLECTOTOEMITTE SATUATION VOLTAGE (mv) FOCED BETA = T A = o C COMPOSITE DC BETA (Q, Q) V = V, V CE = V T A = o C COLLECTO CUENT (ma) COLLECTO CUENT (ma) FIGUE. COLLECTO EMITTE SATUATION VOLTAGE vs COLLECTO CUENT OF TANSISTO (Q ) FIGUE. COMPOSITE DC BETA vs COLLECTO CUENT OF DALINGTON CONNECTED TANSISTOS (Q, Q ) OPEN LOOP VOLTAGE GAIN (db) 9 µa µa PHASE ANGLE (I ABC = µa) FEQUENCY (Hz) I ABC = µa V = V, V = V, L = kω (TEMINAL TO V), T A = o C FO TEST CICUIT, SEE FIGUE PHASE ANGLE (DEGEES) FOWAD TANSCONDUCTANCE (µs) V = V, V = V o C o C o C.. AMPLIFIE BIAS CUENT (µa) FIGUE. OPEN LOOP VOLTAGE GAIN vs FEQUENCY FIGUE. FOWAD TANSCONDUCTANCE vs AMPLIFIE BIAS CUENT

14 CA9, CA9A, CA9B Typical Performance Curves (Continued) V = V, V = V, T A = o C FO TEST CICUIT, SEE FIGUE V = V, V = V, I ABC = µa, T A = o C FO TEST CICUIT, SEE FIGUE SLEW ATE (V/µs). SLEW ATE (V/µs).. AMPLIFIE BIAS CUENT (µa). CLOSED LOOP VOLTAGE GAIN (db) FIGUE. SLEW ATE vs AMPLIFIE BIAS CUENT FIGUE. SLEW ATE vs CLOSED LOOP VOLTAGE GAIN PHASE COMPENSATION CAPACITANCE (pf) V = V, V = V, I ABC = ma, T A = o C mv SIGNAL WITH % OVESHOOT FO PHASE COMPENSATION TEST CICUIT, SEE FIGUE C CLOSED LOOP VOLTAGE GAIN (db) C C PHASE COMPENSATION ESISTANCE (Ω) FIGUE. PHASE COMPENSATION CAPACITANCE AND ESISTANCE vs CLOSED LOOP VOLTAGE GAIN