CA3440 HARRIS | Alldatasheet
Document overview
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Technical content
Features
- Supply Current, BW, Slew Rate Programmable Using External Resistor
- 5V to 15V Supply
- Output Drives Typical Bipolar Type Loads
Description
The CA3440 is an integrated circuit operational amplifier that combines the advantages of MOS and bipolar transistors on a single monolithic chip. The CA3440 BiMOS op amp features gate protected PMOS transistors in the input circuit to provide very high input impedance, very low input currents (less than 10pA). This device operates at total supply voltages from 5V to 15V and can be operated over the temperature range from -55 oC to 125oC. The virtues are programmability and very low standby power consumption (300nW). This operational amplifier is internally phase compensated to achieve stable operation in the unity gain follower configuration. Terminals are also provided for use in applications requiring input offset voltage nulling. The use of PMOS in the input stage results in common mode input voltage capability down to 0.5V below the negative supply terminals, an important attribute for single supply applications. The output stage uses MOS complementary source follower form which permits moderate load driving capability (10kΩ ) at very low standby currents (50nA). The CA3440 has the same 8 lead pinout as the “741” and other industry standard op amps with two exceptions: terminals one and five must be connected to the negative supply or to a potentiometer if nulling is required. Terminal 8 must be programmed through an external resistor returned to the negative supply. Pinout CA3440 (SOIC) TOP VIEW Part Number Information PART NUMBER (BRAND) TEMP. RANGE ( oC) PACKAGE PKG. NO. CA3440M (3440) -55 to 125 8 Ld SOIC M8.15 V-/OFFSET NULL INV. INPUT NON-INV. INPUT ISET OUTPUT V-/OFFSET NULL CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1999 File Number 1318.5 CA3440 63kHz, Nanopower, BiMOS Operational Amplifiers OBSOLETE PRODUCT POSSIBLE SUBSTITUTE PR ODUCT ICL7611, ICL7612
Absolute Maximum Ratings Thermal Information Operating Conditions Thermal Resistance (Typical, Note 2) θJA (oC/W) (SOIC - Lead Tips Only) 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. θ JA is measured with the component mounted on an evaluation PC board in free air. Electrical SpecificationsTypical Values Intended Only for Design Guidance, VSUPPL Y =±5V, RSET = 10MΩ , TA = 25oC PARAMETER SYMBOL TEST CONDITIONS CA3440 UNITS Input Resistance R I 2T Ω Input Capacitance C I 3.5 pF Output Resistance R O 450 Ω Equivalent Input e N f = 1kHz R S = 100Ω 110 nV/ √Hz Noise Voltage f = 10kHz 110 nV/ √Hz Short-Circuit Current Source I OM +1 5 m A To Opposite Supply Sink I OM - 4.5 mA Gain Bandwidth Product f T 63 kHz Slew Rate SR 0.03 V/ µs Transient Response R L = 10kΩ , CL = 100pF Rise Time t R 5.6 µs Overshoot OS 10 % Electrical SpecificationsFor Equipment Design, At VSUPPL Y =±5V; RSET = 10MΩ , TA = 25oC, Unless Otherwise Specified PARAMETER SYMBOL TEST CONDITIONS CA3440 UNITSMIN TYP MAX Input Offset Voltage |V IO| - 5 10 mV Input Offset Current | I IO | - 2.5 30 pA Input Current | I I | - 10 50 pA Large Signal Voltage Gain A OL R L = 10kΩ 10 100 - kV/V 80 100 - dB Common Mode Rejection Ratio CMRR - 100 320 µV/V 70 80 - dB Common Mode Input Voltage Range V lCR+ +3.5 +3.7 - V VlCR- -5.0 -5.3 - V Power Supply Rejection Ratio PSRR - 32 320 µV/V 70 90 - dB Max Output Voltage V OM + +3 +3.2 - V VOM - -3 -3.2 - V Supply Current I+ - 10 17 µA Device Dissipation P D - 100 170 µW Input Offset Voltage Temperature Drift ΔVlO/ΔT- 4 - µV/oC CA3440