Document
Semiconductor
January 1999
T UCT ROD ACEMEN 47 P E 7 T L OLE REP 00-442-7 OBS ENDED 8 110kHz, Operational M ns 1 .com COM pplicatio @harris E R NO ntral A entapp Transconductance Amplifier Array Ce : c Call or email
CA3060
Features
• Low Power Consumption as Low as 100mW Per Amplifier
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 characteristics of an operational voltage amplifier with the exception that the forward gain characteristic is best described by transconductance rather than voltage gain (open-loop voltage gain is the product of the transconductance and the load resistance, gMRL). When operated into a suitable load resistor and with 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 electrical characteristics of each amplifier are a function of the amplifier bias current (IABC). This feature offers the system designer maximum flexibility with regard to output current capability, 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 applications such as mixers, multipliers, and modulators. In addition, the CA3060 incorporates a unique Zener diode regulator system that permits current regulation below supply 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.
[ /Title (CA30 60) /Subject (110k Hz, Operational Transc onductance Amplifier Array) /Autho r () /Keywords (Harris Semiconductor, triple, transco nductance amplifier, low power op amp,
• 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 Conditions • Zener Diode Bias Regulator
Applications
• For Low Power Conventional Operational Amplifier Applications • Active Filters • Comparators • Gyrators • Mixers • Modulators • Multiplexers • Multipliers • Strobing and Gating Functions • Sample and Hold Functions
Pinout
CA3060 (PDIP) TOP VIEW
1 2 3 4 5 6 7 8 + 16 OUTPUT NO. 1 15 BIAS NO. 1 14 NON-INV. INPUT NO. 1 13 INV. INPUT NO. 1 12 INV. INPUT NO. 2 + 11 NON-INV. INPUT NO. 2 10 BIAS NO. 2 9 OUTPUT NO. 2 AMP 2 +
Part Number Information
PART NUMBER CA3060E TEMP. RANGE (oC) -40 to 85 PACKAGE 16 Ld PDIP PKG. NO. E16.3
REGULATOR OUT REGULATOR IN V+ INV. INPUT NO. 3 NON-INV. INPUT NO. 3 BIAS NO. 3 OUTPUT NO. 3 V-
BIAS REG. AMP 1
AMP 3
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright
© Harris Corporation 1999
File Number
537.4
3-1
CA3060
Absolute Maximum Ratings
Supply Voltage (Between V+ and V- Terminals) . . . . . . . 36V (±18V) Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to VDifferential Input Voltage (Each Amplifier) . . . . . . . . . . . . . . . . . . 5V Input Current (Each Amplifier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1mA Amplifier Bias Current (Each Amplifier) . . . . . . . . . . . . . . . . . . . 2mA Bias Regulator Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . -5mA Output Short Circuit Duration (Note 1) . . . . . . . . . . . . . . . . Indefinite
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Thermal Information
Thermal Resistance (Typical, Note 2) θJA (oC/W) PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” 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.
NOTES: 1. Short circuit may be applied to ground or to either supply. 2. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
TA =.