ca3094a Intersil Corporation, ca3094a Datasheet

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ca3094a

Manufacturer Part Number
ca3094a
Description
30mhz, High Output Current Operational Transconductance Amplifier
Manufacturer
Intersil Corporation
Datasheet

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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 (I
variation of the integrated circuit sensitivity with either digital
and/or analog programming signals. For example, at an I
of 100 A, a 1mV change at the input will change the output
from 0 to 100 A (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
Pinouts
CA3094AT, BT
CA3094E, AE
CA3094M, BM
PART NUMBER
SUPPLY OPERATION)
(BRAND)
EXT. FREQUENCY
OR INHIBIT INPUT
VOLTAGE INPUTS
COMPENSATION
GND (V- IN DUAL
DIFFERENTIAL
RANGE (
-55 to 125
-55 to 125
-55 to 125
CA3094 (PDIP, SOIC)
TEMP.
ABC
1
2
3
4
3-12
TOP VIEW
), permitting programmable
o
C)
8 Pin Metal Can
8 Ld PDIP
8 Ld SOIC
Data Sheet
PACKAGE
8
7
6
5
SINK OUTPUT
(COLLECTOR)
V+
DRIVE OUTPUT
(EMITTER)
I
ABC
PROGRAMMABLE
INPUT
(STROBE OR AGC)
CURRENT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
T8.C
E8.3
M8.15
PKG.
NO.
ABC
NOTE: Pin 4 is connected to case.
VOLTAGE INPUTS
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
• Can Deliver 3W (Average) or 10W (Peak) to External Load
• High Power, Single Ended Class A Amplifier will Deliver
• Total Harmonic Distortion (THD) at 0.6W in Class A
Applications
• Error Signal Detector: Temperature Control with
• 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
COMPENSATION OR
DIFFERENTIAL
1-888-INTERSIL or 321-724-7143
Capabilities
(in Switching Mode)
Power Output of 0.6W (1.6W Device Dissipation)
Operation 1.4% (Typ)
Thermistor Sensor; Speed Control for Shunt Wound DC
Motor
EXT. FREQUENCY
CA3094, CA3094A, CA3094B
INHIBIT INPUT
April 1999
GND (V- IN DUAL
SUPPLY OPERATION)
CA3094 (METAL CAN)
2
1
3
SINK OUTPUT
(COLLECTOR)
TOP VIEW
8
4
|
Copyright
5
TAB
7
File Number
6
I
PROGRAMMABLE INPUT
(STROBE OR AGC)
V+
ABC
©
DRIVE OUTPUT
(EMITTER)
CURRENT
Intersil Corporation 1999
598.7

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ca3094a Summary of contents

Page 1

... SUPPLY OPERATION) 3-12 CA3094, CA3094A, CA3094B Features • CA3094E, M for Operation Up to 24V • CA3094AT 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) • ...

Page 2

... Absolute Maximum Ratings Supply Voltage (Between V+ and V- Terminals) CA3094 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V CA3094A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36V CA3094B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44V Differential Input Voltage (Terminals 2 and 3, Note Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input Current (Terminals 2 and 1mA Amplifier Bias Current (Terminal 2mA Average Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA Operating Conditions Temperature Range ...

Page 3

... DIFFERENTIAL VOLTAGE 1 2 INPUT DIFFERENTIAL VOLTAGE 3 INPUT AMPLIFIER 5 BIAS INPUT ABC D 1 3-14 CA3094, CA3094A, CA3094B o C for Equipment Design. Single Supply V+ = 30V, Dual Supply V SYMBOL TEST CONDITIONS 30V GND 15V -15V ...

Page 4

... I OS DISSIPATION FIGURE 2. INPUT OFFSET CURRENT TEST CIRCUIT 3-15 CA3094, CA3094A, CA3094B 1/F Noise Measurement Circuit When using the CA3094 audio amplifier circuits frequently necessary to consider the noise performance of the device. Noise measurements are made in the circuit shown in Figure 20. This circuit is a 30dB, non-inverting amplifier with emitter follower output and phase compensation from Terminal 2 to ground ...

Page 5

... FIGURE 5. 1/F NOISE TEST CIRCUIT +15V I ABC CA3094A 13k 3 + 15k 4 -15V FIGURE 7. OPEN LOOP SLEW RATE vs I 3-16 CA3094, CA3094A, CA3094B 10k 8 NOTES 10k 10. Input Voltage Range for CMRR = 1V to 27V. E OUT 11. +15V 500 8 6 100 OUTPUT (RMS) 3k -15V FIGURE 6 ...

Page 6

... The Desired Sensitivity - The higher the I the sensitivity, i.e., a greater drive current capability at the output for a specific voltage change at the input. 2. Required Input Resistance - The lower the I er the input resistance. 3-17 CA3094, CA3094A, CA3094B 120VAC V+ = 30V R 3 (NOTE 12) OUTPUT ...

Page 7

... C 1N914 2 12V DC 100 k 100 FIGURE 13. RC TIMER TRIGGERED BY EXTERNAL NEGATIVE PULSE 3-18 CA3094, CA3094A, CA3094B OUT (NOTE) Where E and FIGURE 11B. NON-INVERTING MODE FOLLOWER FIGURE 11. APPLICATION OF THE CA3094 Problem: To calculate the maximum value of R required to R ...

Page 8

... LINE FIGURE 14. FREE RUNNING PULSE GENERATOR 27k 300k 100k 50k 100k 2 27k 3 C 560pF FIGURE 16. SINGLE SUPPLY ASTABLE MULTIVIBRATOR 3-19 CA3094, CA3094A, CA3094B 1M MAX 510 TYPE 1N914 47k 8 E OUT 47k RC x 120. K(C /C). 1 FIGURE 15. CURRENT OR VOLTAGE CONTROLLED OSCILLATOR 30V 510 ...

Page 9

... FIGURE 18. COMPARATORS (THRESHOLD DETECTORS) DUAL AND SINGLE SUPPLY TYPES TYPE D1201F PTC TEMP. SENSOR + 50V 117V 26V 60Hz 60Hz R 75k FOR NTC SENSOR, INTERCHANGE POSITION OF SENSOR AND 3-20 CA3094, CA3094A, CA3094B +15V INPUT 2k 8 OUTPUT -15V 6 NOTES: 19. Upper Threshold 20. Lower Threshold . R 2 68k 10k 75k TEMP ...

Page 10

... 0.1 F (NOTE 28) 1k FIGURE 21. GROUND FAULT INTERRUPTER (GFI) AND WAVEFORMS PERTINENT TO GROUND FAULT DETECTOR 3-21 CA3094, CA3094A, CA3094B NOTE 23 1 5.6 +15V REG. 8 OUTPUT R 5k NOTES: 21. V+ Input Range = 19V to 30V for 15V output. 22. V- Input Range = -16V to -30V for -15V output. ...

Page 11

... 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 FIGURE 22. 12W AUDIO AMPLIFIER CIRCUIT FEATURING TRUE COMPLEMENTARY SYMMETRY OUTPUT STAGE WITH CA3094 IN DRIVER STAGE 3-22 CA3094, CA3094A, CA3094B 820 220 220 Q ...

Page 12

... C 1 -55 C 0.1 0.1 1.0 10 AMPLIFIER BIAS CURRENT ( A) FIGURE 27. AMPLIFIER SUPPLY CURRENT vs AMPLIFIER BIAS CURRENT (I , TERMINAL 5) ABC 3-23 CA3094, CA3094A, CA3094B 10 o 125 -55 C 0.1 0.01 100 1000 FIGURE 24. INPUT OFFSET CURRENT vs AMPLIFIER BIAS 10 10 ...

Page 13

... TO V-), FOR TEST CIRCUIT, SEE FIGURE 21 - FREQUENCY (Hz) FIGURE 33. OPEN LOOP VOLTAGE GAIN vs FREQUENCY 3-24 CA3094, CA3094A, CA3094B (Continued) 100 3 10 1000 100 1000 FIGURE 32. COMPOSITE DC BETA vs COLLECTOR CURRENT -50 -100 10 -150 -200 10 ...

Page 14

... FOR TEST CIRCUIT, SEE FIGURE 22 10 1.0 0 AMPLIFIER BIAS CURRENT ( A) FIGURE 35. SLEW RATE vs AMPLIFIER BIAS CURRENT 1000 FIGURE 37. PHASE COMPENSATION CAPACITANCE AND RESISTANCE vs CLOSED LOOP VOLTAGE GAIN 3-25 CA3094, CA3094A, CA3094B (Continued) 100 10 1.0 0.1 100 1000 FIGURE 36. SLEW RATE vs CLOSED LOOP VOLTAGE GAIN V+ = +15V -15V 500mA, T ...

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