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LM3046 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM3046 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 6 page Electrical Characteristics (Continued) (T A = 25˚C unless otherwise specified) Parameter Conditions Limits Units Min Typ Max Temperature Coefficient of Input Offset Voltage V CE = 3V, IC = 1 mA 1.1 µV/˚C Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: The collector of each transistor is isolated from the substrate by an integral diode. The substrate (terminal 13) must be connected to the most negative point in the external circuit to maintain isolation between transistors and to provide for normal transistor action. Electrical Characteristics Parameter Conditions Min Typ Max Units Low Frequency Noise Figure (NF) f = 1 kHz, V CE = 3V, 3.25 dB I C = 100 µA, RS = 1kΩ LOW FREQUENCY, SMALL SIGNAL EQUIVALENT CIRCUIT CHARACTERISTICS Forward Current Transfer Ratio (h fe)f = 1 kHz, VCE = 3V, 110 I C = 1mA Short Circuit Input Impednace (h ie) 3.5 k Ω Open Circuit Output Impedance (h oe) 15.6 µmho Open Circuit Reverse Voltage Transfer Ratio (h re) 1.8x10 −4 ADMITTANCE CHARACTERISTICS Forward Transfer Admittance (Y fe)f = 1 MHz, VCE = 3V, 31 − j 1.5 Input Admittance (Y ie)IC = 1 mA 0.3+J 0.04 Output Admittance (Y oe) 0.001+j 0.03 Reverse Transfer Admittance (Y re) See Curve Gain Bandwidth Product (f T)VCE = 3V, IC = 3 mA 300 550 Emitter to Base Capacitance (C EB)VEB = 3V, IE = 0 0.6 pF Collector to Base Capacitance (C CB)VCB = 3V, IC = 0 0.58 pF Collector to Substrate Capacitance (C CI)VCS = 3V, IC = 0 2.8 pF Typical Performance Characteristics Typical Collector To Base Cutoff Current vs Ambient Temperature for Each Transistor DS007950-8 Typical Collector To Emitter Cutoff Current vs Ambient Temperature for Each Transistor DS007950-9 Typical Static Forward Current-Transfer Ratio and Beta Ratio for Transistors Q 1 and Q 2 vs Emitter Current DS007950-10 www.national.com 3 |
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