CA3060 Intersil, CA3060 Datasheet

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CA3060

Manufacturer Part Number
CA3060
Description
110kHz / Operational Transconductance Amplifier Array
Manufacturer
Intersil
Datasheet

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CA3060E
Manufacturer:
UMC
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Part Number:
CA3060E
Manufacturer:
HARRIS
Quantity:
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Part Number:
CA3060E
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January 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Features
• Low Power Consumption as Low as 100mW Per
• Independent Biasing for Each Amplifier
• High Forward Transconductance
• Programmable Range of Input Characteristics
• Low Input Bias and Input Offset Current
• High Input and Output Impedance
• No Effect on Device Under Output Short-Circuit
• Zener Diode Bias Regulator
Applications
• For Low Power Conventional Operational Amplifier
• Active Filters
• Comparators
• Gyrators
• Mixers
• Modulators
• Multiplexers
• Multipliers
• Strobing and Gating Functions
• Sample and Hold Functions
Pinout
NON-INV. INPUT NO. 3
Amplifier
Conditions
Applications
REGULATOR OUT
INV. INPUT NO. 3
©
REGULATOR IN
OUTPUT NO. 3
Harris Corporation 1999
BIAS NO. 3
Semiconductor
V+
V-
1
2
3
4
5
6
7
8
AMP 1
AMP
TOP VIEW
BIAS
REG.
CA3060
3
(PDIP)
AMP
2
16
15
14
13
12
11
10
9
OUTPUT NO. 1
BIAS NO. 1
NON-INV. INPUT NO. 1
INV. INPUT NO. 1
INV. INPUT NO. 2
NON-INV. INPUT NO. 2
BIAS NO. 2
OUTPUT NO. 2
3-1
Description
The CA3060 monolithic integrated circuit consists of an array of
three independent Operational Transconductance Amplifiers
(see Note). This type of amplifier has the generic characteris-
tics of an operational voltage amplifier with the exception that
the forward gain characteristic is best described by transcon-
ductance rather than voltage gain (open-loop voltage gain is the
product of the transconductance and the load resistance,
g
provisions for feedback, these amplifiers are well suited for a
wide variety of operational-amplifier and related applications. In
addition, the extremely high output impedance makes these
types particularly well suited for service in active filters.
The three amplifiers in the CA3060 are identical push-pull
Class A types which can be independently biased to achieve a
wide range of characteristics for specific application. The elec-
trical characteristics of each amplifier are a function of the
amplifier bias current (I
designer maximum flexibility with regard to output current capa-
bility, power consumption, slew rate, input resistance, input bias
current, and input offset current. The linear variation of the
parameters with respect to bias and the ability to maintain a
constant DC level between input and output of each amplifier
also makes the CA3060 suitable for a variety of nonlinear appli-
cations such as mixers, multipliers, and modulators.
In addition, the CA3060 incorporates a unique Zener diode
regulator system that permits current regulation below sup-
ply voltages normally associated with such systems.
NOTE: Generic applications of the OTA are described in AN-6668.
For improved input operating ranges, refer to CA3080 and CA3280
data sheets (File Nos. 475 and 1174) and application notes AN6668
and AN6818.
Part Number Information
CA3060E
M
PART NUMBER
R
L
). When operated into a suitable load resistor and with
Transconductance Amplifier Array
RANGE (
-40 to 85
TEMP.
ABC
CA3060
). This feature offers the system
o
C)
110kHz, Operational
16 Ld PDIP
PACKAGE
File Number
E16.3
PKG.
NO.
537.4

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CA3060 Summary of contents

Page 1

... The linear variation of the parameters with respect to bias and the ability to maintain a constant DC level between input and output of each amplifier also makes the CA3060 suitable for a variety of nonlinear appli- cations such as mixers, multipliers, and modulators. In addition, the CA3060 incorporates a unique Zener diode regulator system that permits current regulation below sup- ply voltages normally associated with such systems ...

Page 2

... Slew Rate (Test Circuit) SR (See Figure 17) Open Loop (g ) Bandwidth (See Figure 13) CA3060 Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40 Thermal Information 1mA Thermal Resistance (Typical, Note 2) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package 150 Maximum Storage Temperature Range . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s 300 ...

Page 3

... Inverting Input of Amplifiers 1, 2 and Terminals 13, 12 and 4, respectively. 6. Non-inverting Input of Amplifiers 1, 2 and 3 is Terminals 14, 11 and 5, respectively. 7. Amplifier Bias Current of Amplifiers 1, 2 and Terminals 15, 10 and 6, respectively. 8. Output of Amplifiers 1, 2 and Terminals 16, 9 and 7, respectively. CA3060 15V (Continued) ...

Page 4

... FIGURE 3. INPUT BIAS CURRENT vs AMPLIFIER BIAS CURRENT 1000 100 SUPPLY VOLTAGE AMPLIFIER BIAS CURRENT ( A) FIGURE 5. PEAK OUTPUT CURRENT vs AMPLIFIER BIAS CURRENT CA3060 1000 100 o 125 - 100 1000 FIGURE 2. INPUT OFFSET CURRENT vs AMPLIFIER BIAS ...

Page 5

... FIGURE 9. AMPLIFIER SUPPLY CURRENT (EACH AMPLIFIER) vs TEMPERATURE 1000 1kHz A SUPPLY VOLTAGE 100 AMPLIFIER BIAS CURRENT ( A) FIGURE 11. FORWARD TRANSCONDUCTANCE vs AMPLIFIER BIAS CURRENT CA3060 (Continued) 10,000 (TYP 15V SUPPLY SUPPLY VOLTAGE 1000 V + (TYP SUPPLY 100 V - (TYP) ...

Page 6

... C AMPLIFIER ABC ABC FIGURE 17. SLEW RATE TEST CIRCUIT FOR AMPLIFIER 1 OF CA3060 CA3060 (Continued) 0 10,000 = 100 A -50 -100 -150 1000 -200 -250 100 -300 ABC = 1 A -350 10 100 10 1 FIGURE 14. INPUT RESISTANCE vs AMPLIFIER BIAS CURRENT 7 ...

Page 7

... Other than the difference given above, the characteristics tabulated are similar to those of any typical op amp. The OTA circuitry incorporated in the CA3060 (Figure 18) provides the equipment designer with a wider variety of circuit arrangements than does the standard op amp; ...

Page 8

... Capacitance Effects The CA3060 is designed to operate at such low power levels that high impedance circuits must be employed. In designing such circuits, particularly feedback amplifiers, stray circuit capacitance must always be considered because of its adverse effect on frequency response and stability ...

Page 9

... CA3060 Circuit Description Figure 23 shows the block diagram of a tri-level comparator using the CA3060. Two of the three amplifiers are used to compare the input signal with the upper limit and lower limit reference voltages. The third amplifier is used to compare the input signal with a selected value of intermediate limit reference voltage ...

Page 10

... FIGURE 23. FUNCTIONAL BLOCK DIAGRAM OF A TRI-LEVEL COMPARATOR The circuit diagram of a tri-level comparator appears in Figure 22. Power is provided for the CA3060 via terminal 3 and supplies and the built-in regulator provides amplifier bias current ( the three amplifiers via terminal 1. Lower ...

Page 11

... Non-Linear Applications AM Modulator (Two Quadrant Multiplier) Figure 26 shows Amplifi the CA3060 used modulator or two quadrant multiplier circuit. When modula- tion is applied to the amplifier bias input, Terminal B, and the carrier frequency to the differential input, Terminal A, the waveform, shown in Figure 26 is obtained ...

Page 12

... INPUT 1M I O(2) 1M 270 Y INPUT 51k 100 0.02 F 24k 1.1M potentiometer. 270 FIGURE 28. TYPICAL FOUR QUADRANT MULTIPLIER CIRCUIT FIGURE 29B. 3-12 CA3060 13 OUTPUT AMP 16 270 100 14 200k 270 AMP 560k 7 3 240k 5 6 ...

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