MC1495 ON Semiconductor, MC1495 Datasheet
MC1495
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MC1495 Summary of contents
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... The MC1495 is designed for use where the output is a linear product of two input voltages. Maximum versatility is assured by allowing the user to select the level shift method. Typical applications include: multiply, divide*, square root*, mean square*, phase detector, frequency doubler, balanced modulator/demodulator, and electronic gain control ...
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... High 6 |TC 9, BW(3dB CMV Low High for MC1495 Low = – for MC1495B http://onsemi.com 1.0 mA Min Typ Max – 1.0 1.0 RX – 2.0 2.0 RY – 1.5 2.0 RX – 3.0 4 – ...
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... Figure 1. Multiplier Transfer Characteristic This device contains 16 active transistors. Figure 3. Circuit Schematic Figure 4. Linearity (Using Null Technique) MC1495 Figure 2. Transconductance Bandwidth NOTE: Adjust “Scale Factor Adjust” for a null in V illustrative purposes only, not specified for test conditions. http://onsemi.com 3 .This schematic for ...
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... Figure 5. Linearity (Using X-Y Plotter Technique) Figure 6. Input and Output Current Figure 8. Output Resistance MC1495 Figure 7. Input Resistance Figure 9. Bandwidth (R http://onsemi.com ...
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... Figure 10. Bandwidth ( Figure 12. Power Supply Sensitivity Figure 14. Offset Adjust Circuit (Alternate) MC1495 Figure 11. Common Mode Gain and Common Mode Input Swing Figure 13. Offset Adjust Circuit http://onsemi.com 5 ...
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... Figure 15. Linearity versus Temperature Figure 17. Error Contributed by Input Differential Amplifier Figure 19. Maximum Allowable Input Voltage versus Voltage at Pin 1 or Pin 7 MC1495 Figure 16. Scale Factor versus Temperature Figure 18. Error Contributed by Input Differential Amplifier http://onsemi.com 6 ...
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... the multiplier input terminals. DESIGN CONSIDERATIONS General The MC1495 permits the designer to tailor the multiplier to a specific application by proper selection of external components. External components may be selected to optimize a given parameter (e.g. bandwidth) which may in turn restrict another parameter (e.g. maximum output voltage swing). Each important parameter is discussed in detail in the following paragraphs ...
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... Procedure for further information regarding selection of these potentials. Figure 20. Basic Multiplier Figure 21. Multiplier with Operational Amplifier Level Shift MC1495 If an operational amplifier is used for level shift, as shown in Figure 21, the output swing (of the multiplier) is greatly reduced. See Section 3 for further details. GENERAL DESIGN PROCEDURE Selection of component values is best demonstrated by the following example ...
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... Q and potential which is two 3 4 MC1495 diode-drops below the voltage at Pin 1. Thus, the voltage at Pin 1 should be about 2.0 V higher than the maximum input voltage. Therefore, to handle +5 the inputs, the voltage at Pin 1 must be at least +7.0 V. Let V Since the current flowing into Pin 1 is always equal to 2I ...
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... R decreased somewhat so as not to materially affect the X X linearity. This avoids increasing maintain 0.1. MC1495 The versatility of the MC1495 allows the user to to and I will optimize its performance for various input and output signal 2 14 levels. OFFSET AND SCALE FACTOR ADJUSTMENT ...
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... Apply +10 Vdc to both the X and Y-inputs. (b) Adjust P to achieve + the output Repeat steps 1 through 4 as necessary. MC1495 The ability to accurately adjust the MC1495 depends upon the characteristics of potentiometers P Multi-turn, infinite resolution potentiometers with low temperature coefficients are recommended. DC APPLICATIONS Multiply The circuit shown in Figure 21 may be used to multiply signals from dc to 100 kHz ...
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... In terms of percentage error, error x 100% percentage error = actual MC1495 or from Equation (5), From Equation 7, the percentage error is inversely related to voltage V percentage error decreases). (1) A circuit that performs the divide function is shown in Figure 25 ...
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... Steps 1 through 3 may be repeated as necessary to achieve desired accuracy. MC1495 Figure 25. Divide Circuit AC APPLICATIONS The applications that follow demonstrate the versatility of the monolithic multiplier potted multiplier is used for these cases, the results generally would not be as good because the potted units have circuits that, although they optimize dc multiplication operation, can hinder ac applications ...
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... Figure 27. Square Root Circuit Figure 28. Frequency Doubler MC1495 Figure 29. Balanced Modulator http://onsemi.com 14 (A) (B) ...
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... Linear Gain Control ) t To obtain linear gain control, the designer can feed to one of the two MC1495 inputs a signal that will vary the unit’s gain. The following example demonstrates the feasibility cos ( ) t ]. this application. Suppose a 200 kHz sinewave, 1.0 V ...
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... – MC1495 The 2 in the numerator of the equation is missing in this scale factor expression because the output is single-ended and ac coupled. –1 NOTE: Linear gain control 1.0 V control voltage Figure 31. Linear Gain Control http://onsemi.com ...
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... G –T– MC1495 PACKAGE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751A–03 ISSUE http://onsemi.com ...
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... –T– MC1495 PACKAGE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 646–06 ISSUE http://onsemi.com ...
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... Notes MC1495 http://onsemi.com 19 ...
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... N. American Technical Support: 800–282–9855 Toll Free USA/Canada MC1495 JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031 Phone: 81–3–5740–2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 20 MC1495/D ...