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PDF CA3094B Data sheet ( Hoja de datos )
| Número de pieza | CA3094B | |
| Descripción | 30MHz / High Output Current Operational Transconductance Amplifier | |
| Fabricantes | Intersil | |
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Data Sheet
CA3094, CA3094A, CA3094B
April 1999
File Number 598.7
30MHz, High Output Current Operational
Transconductance Amplifier (OTA)
The CA3094 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 CA3094 to provide an on-off signal or
proportional control output signal up to 100mA. This signal is
sufficient to directly drive high current thyristors, relays, DC
loads, or power transistors. The CA3094 has the generic
characteristics of the CA3080 operational amplifier directly
coupled to an integral Darlington power transistor capable of
sinking or driving currents up to 100mA.
The gain of the differential input stage is proportional to the
amplifier bias current (IABC), permitting programmable
variation of the integrated circuit sensitivity with either digital
and/or analog programming signals. For example, at an IABC
of 100µA, a 1mV change at the input will change the output
from 0 to 100µA (typical).
The CA3094 is intended for operation up to 24V and is
especially useful for timing circuits, in automotive equipment,
and in other applications where operation up to 24V is a
primary design requirement (see Figures 28, 29 and 30 in
Typical Applications text). The CA3094A and CA3094B are
like the CA3094 but are intended for operation up to 36V and
44V, respectively (single or dual supply).
Ordering Information
PART NUMBER
(BRAND)
CA3094AT, BT
CA3094E, AE
TEMP.
RANGE (oC)
PACKAGE
-55 to 125 8 Pin Metal Can
-55 to 125 8 Ld PDIP
CA3094M, BM
-55 to 125 8 Ld SOIC
PKG.
NO.
T8.C
E8.3
M8.15
Pinouts
CA3094 (PDIP, SOIC)
TOP VIEW
EXT. FREQUENCY
COMPENSATION
OR INHIBIT INPUT
DIFFERENTIAL
VOLTAGE INPUTS
1
2
3
GND (V- IN DUAL 4
SUPPLY OPERATION)
SINK OUTPUT
8 (COLLECTOR)
7 V+
6
DRIVE OUTPUT
(EMITTER)
5 IABC CURRENT
PROGRAMMABLE
INPUT
(STROBE OR AGC)
Features
• CA3094E, M for Operation Up to 24V
• CA3094AT, E, M for Operation Up to 36V
• CA3094BT, M for Operation Up to 44V
• Designed for Single or Dual Power Supply
• Programmable: Strobing, Gating, Squelching, AGC
Capabilities
• Can Deliver 3W (Average) or 10W (Peak) to External Load
(in Switching Mode)
• High Power, Single Ended Class A Amplifier will Deliver
Power Output of 0.6W (1.6W Device Dissipation)
• Total Harmonic Distortion (THD) at 0.6W in Class A
Operation 1.4% (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 CA3085
• Wide Frequency Range Oscillator
• Analog Timer
• Level Detector
• Alarm Systems
• Voltage Follower
• Ramp Voltage Generator
• High Power Comparator
• Ground Fault Interrupter (GFI) Circuits
CA3094 (METAL CAN)
TOP VIEW
EXT. FREQUENCY
COMPENSATION OR
INHIBIT INPUT
SINK OUTPUT
(COLLECTOR)
8 TAB
1 7 V+
DIFFERENTIAL
VOLTAGE INPUTS
2
6
DRIVE OUTPUT
(EMITTER)
35
4
GND (V- IN DUAL
SUPPLY OPERATION)
IABC CURRENT
PROGRAMMABLE INPUT
(STROBE OR AGC)
NOTE: Pin 4 is connected to case.
3-12
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
1 page  
CA3094, CA3094A, CA3094B
Test Circuits (Continued)
100Ω
100Ω
VCMR
0.8V TO 27.2V
15V
2
3
9.9kΩ
200Ω
30V 4.7kΩ
7
8
-
CA3094
+4
1
1kΩ
100pF
6
10kΩ
10kΩ
EOUT
NOTES:
9. CMRR = E-----2---O-1----U0---0-T----×–-----2E---6-1---V-O----U----T-- .
10. Input Voltage Range for CMRR = 1V to 27V.
11. CMRR (dB) = 20log E-----2---O-1----U0---0-T----×–-----2E---6-1---V-O----U----T-- .
FIGURE 4. COMMON MODE RANGE AND REJECTION RATIO TEST CIRCUIT
IABC
+15V
500Ω
3.6kΩ
RS
(NOTE)
2
5
7
-8
CA3094A
120Ω
3
RS
(NOTE)
+
4
1
CC
6
3kΩ
-15V
OUTPUT
(RMS)
IABC
(µA)
5
50
500
CCOMP
(pF)
0
50
500
NOTE:
RS = 1MΩ
(1/F Noise Current Test).
RS = 0Ω
(1/F Noise Voltage Test).
-15V 10kΩ +15V
RS
+15V
91Ω
100Ω
10kΩ
10Ω
IABC 5
7
2-
8
10Ω CA3094A
3+
6
4
OUTPUT
RL = 2kΩ
RS
(Ω)
56K
560K
56M
IABC
(µA)
500
50
5
-15V
FIGURE 5. 1/F NOISE TEST CIRCUIT
+15V
FIGURE 6. OPEN LOOP GAIN vs FREQUENCY TEST CIRCUIT
+15V
IABC
5
7
2V 8
0V 2 -
13kΩ
CA3094A
6
3+
15kΩ
4
2kΩ EOUT
-15V
FIGURE 7. OPEN LOOP SLEW RATE vs IABC TEST CIRCUIT
±10V
56kΩ
2
10kΩ
3
5
7
-8
CA3094A
+
4
1
220Ω
0.001µF
-15V
10kΩ
6
2kΩ
EOUT
FIGURE 8. SLEW RATE vs NON-INVERTING UNITY GAIN
TEST CIRCUIT
3-16
5 Page 
CA3094, CA3094A, CA3094B
Typical Applications (Continued)
TREBLE
“BOOST”
“CUT”
(CW) 15kΩ (CCW)
0.01µF
820Ω
D1 - D4 1N5391
V+
0.12µF
1800Ω
68Ω
0.001µF
0.001µF
5600Ω
5µF+
220Ω
1W
220Ω
1W
15µF
+
Q2
2N6292
INPUT
C1 R1
(NOTES
32, 33)
7
VOLUME
2+
6.8pF
1
30Ω †
27Ω
Q1
Q3
CA3094B
8
3-
8 LEAD
6 TO-5
5
680
kΩ
4
0.47
µF
1Ω
THERMAL
COMPENSATION
NETWORK †
+
4700µF
2N6292
+
V-
4700
µF
0.47Ω
0.47Ω
2N6107
330Ω
47Ω
0.2µF
D1
D2
D3
D4
3µH
120V
60Hz
STANCOR
NO. P-8609
OR EQUIVALENT
(120VAC TO
26.8VCT AT 1A)
22Ω
RL
8Ω
R2
1.8MΩ
(NOTES 32, 33)
†OPTIONAL THERMAL
COMPENSATION
NETWORK
25µF 1kΩ
0.02µF
+ “BOOST”100kΩ “CUT” 10kΩ
(CW)
(CCW)
BASS
C2
0.47µF
JUMPER (NOTES 32, 33)
8.2Ω
1N5391
TYPICAL PERFORMANCE DATA FOR 12W AUDIO AMPLIFIER CIRCUIT
Power Output (8Ω load, Tone Control Set at “Flat”)
Music (at 5% THD, Regulated Supply). . . . . . . . . . . . . . . . . . 15W
Continuous (at 0.2% IMD, 60Hz and 2kHz
Mixed in a 4:1 Ratio, Unregulated Supply)
See Figure 8 in AN6048 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
Total Harmonic Distortion
At 1W, Unregulated Supply . . . . . . . . . . . . . . . . . . . . . . . . .0.05%
At 12W, Unregulated Supply . . . . . . . . . . . . . . . . . . . . . . . .0.57%
Voltage Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40dB
Hum and Noise (Below Continuous Power Output) . . . . . . . . . .83dB
Input Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250kΩ
Tone Control Range. . . . . . . . . . . . . . . . . . .See Figure 9 in AN6048
NOTES:
32. For standard input: Short C2; R1 = 250kΩ, C1 = 0.047µF; remove
R2.
33. For ceramic cartridge input: C1 = 0.0047µF, R1 = 2.5MΩ, remove
jumper from C2; leave R2.
FIGURE 22. 12W AUDIO AMPLIFIER CIRCUIT FEATURING TRUE COMPLEMENTARY SYMMETRY OUTPUT STAGE WITH CA3094 IN
DRIVER STAGE
3-22
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CA3094B.PDF ] | |
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