rc4200 Fairchild Semiconductor, rc4200 Datasheet
rc4200
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rc4200 Summary of contents
Page 1
... These amplifiers are frequency compensated for optimum AC response in a logging circuit, the heart of a multiplier, and can therefore provide superior AC response. The RC4200 can be used in a wide variety of applications without sacrificing accuracy. Four-quadrant multiplication, two-quadrant division, square rooting, squaring and RMS conversion can all be easily implemented with predictable accuracy ...
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... RC4200 Functional Description The RC4200 multiplier is designed to multiply two input currents (I and I ) and to divide by a third input current ( The output is also in the form of a current (I circuit diagram is shown in the Block Diagram. The nominal relationship between the three inputs and the output is: ...
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... Versus Temperature ±0.005 ±0.1 ≤ 250 µA, 1,2,4 1 150 µ 150 µ 150 µ 1.0 RC4200 Max. Unit - +125 °C +70 °C 8-Lead SOIC +125˚C 300mW — 240˚C/W 4.17mW/˚C 4200 Max. Min. Typ. Max. Units ± ...
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... If desired, the output (I 3 Dynamic Range and Stability The precision dynamic range for the RC4200 is from +50 µA to +250 µA inputs for I degrade if this range is exceeded. To improve the stability for input currents less than 50 µA, filter circuits (R ...
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... term will cancel to the REF and the result is REF = REF 1 2 ≤ V (max (min.) X ≤ V (max (min RC4200 Y ...
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... 0.1 µF RC4200 0.1 µ – 0.1 µ Figure 5. Multiplying Circuit Offset Adjust 3. Connect V wave output (adjust for 0 feedthrough). ...
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... Z Z (min.) Z ≤ V (max (min ∆V ∆V REF Z ----------------- - , ---------------- - b 4 250µA 200µA ∆ REF ( ) – 700µA V max ∆ REF ( ) – 200µA V max ------------ - , R = ------------ - RC4200 7 ...
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... /0.10 Figure 7. Divider Circuit with Offset Adjustment 8 +V REF (Offset RC4200 Multiplier R7 1 µ 0 µ 0 µ 0 Example: Two-Quad Divider ...
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... R = ----------------------- - ao 125µ max ----------------------- - 0 225µA RC4200 = N√ REF RC4200 Multiplier (Output 65-1877 Figure REF 0 0 REF ...
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... 100Ω ------ - REF RC4200 Multiplier µ 0 µ Figure 9. Square Root Circuit Offset Adjust Procedure 1. Set both trimmer pots the wiper. 2. Put in a full scale ( input ...
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... RC4200 Multiplier Figure 10. Squaring Circuit REF X REF + ------------- - + --------------------- - where K = -------------------- - REF 1 (max.) – V (min RC4200 (Output RC5534 -V S 65-1875 11 ...
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... REF RC4200 can be used to cancel all µ Multiplier linearity errors caused by input 1 offsets and resistor product mis-match (See Appendix 1 µ 0 ...
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... RC4200 is ±0.1% maximum (±0.03 maximum for the RC4200A). That is ± -------- - 0.1% F. The other system errors are caused by voltage offsets on the inputs of the RC4200 and can be as high as ±3.0% (±2.0% for RC4200A ± --------------- - ------------ - 3.0% F.S. V ...
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... RC4200 Reducing Mismatch Errors You need not use 0.01% resistors to reduce resistor product mismatch errors. Here are a couple of ways to obtain maximum accuracy out of the extended range multiplier (see Figure 4) using 1% resistors. Method 1 V feedthrough, for example, occurs when V X ≠ 0. This V V feedthrough will equal ±V ...
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... Asinω ∫ ω sin Asinωt rms Low Pass rms IN O Filter Low Pass Filter 65-4200-09 Figure 14 Avg RC4200 ...
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... Figure 15. RMS to DC Converter V Amplitude Modulator with A.G.C. In many AC modulator applications, unwanted output modulation is caused by variations in carrier input ampli- tude. The versatility of the RC4200 multiplier can be utilizes to eliminate this undesired fluctuation. The extended range multiplier circuit (Figure 4) shows an output amplitude inversely proportional to the reference voltage V ...
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... S p ω AVG A sin = * 65-1866 (max.) = 10V sinω 10V = ------------- - = 200K 50µA 10V = ------------- - = 200K 50µA 2.5V = ------------- - = 50K 50µA R × 200K 200K -------------------------------- - = 800K 50K a (max 0.2 V sinwt 40K 2 = 7.11K 0 RC4200 ω ...
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... Caution! The bandpass drops off significantly for lower currents (<50 µA) and non-symmetrical rise and fall times can cause second harmonic distortion OS1 7 RC4200 Multiplier µ 0 OS2 OS3 ...
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... - µ - µ µ - Figure 18. Outputs RC4200 Frequency (Hz Frequency (Hz ...
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... RC4200 300 250 200 150 100 1 100 150 200 µ Figure 19a. Output Noise Current (I vs. Input Currents ( for 250 200 150 100 20 250 5 nA 200 4 nA 150 3 nA 2.5 nA 100 250 300 50 ) Figure 19b. Output Noise Current ( 250µ ...
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... Terminal numbers are shown for reference only. 0. "C" dimension does not include solder finish thickness. 5. Symbol "N" is the maximum number of terminals. 4.01 2 6.20 0.50 1. 8° 0.10 α – C – ccc C RC4200 h x 45° ...
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... RC4200 Mechanical Dimensions 8-Lead Plastic DIP Package Inches Millimeters Symbol Min. Max. Min. Max. A — .210 — 5.33 A1 .015 — .38 A2 .115 .195 2.93 4.95 B .014 .022 .36 B1 .045 .070 1.14 1.78 C .008 .015 .20 D .348 .430 8.84 10.92 D1 .005 — .13 .300 .325 7.62 8.26 E .240 .280 6.10 7. .100 BSC 2 ...
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... Ordering Information Part Number RC4200N RC4200AN RC4200M RC4200AM DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...