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IL300 Datasheet(PDF) 12 Page - Vishay Siliconix |
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IL300 Datasheet(HTML) 12 Page - Vishay Siliconix |
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12 / 15 page  www.vishay.com 12 Document Number 83622 Rev. 1.4, 26-Oct-04 VISHAY IL300 Vishay Semiconductors Table 2. Optolinear amplifiers These amplifiers provide either an inverting or non- inverting transfer gain based upon the type of input and output amplifier. Table 2 shows the various con- figurations along with the specific transfer gain equa- tions. The offset column refers to the calculation of the output offset or Vref2 necessary to provide a zero volt- age output for a zero voltage input. The non-inverting input amplifier requires the use of a bipolar supply, while the inverting input stage can be implemented with single supply operational amplifiers that permit operation close to ground. Figure 22. Non-inverting and Inverting Amplifiers iil300_22 Vcc 20pF 4 1 2 3 4 8 7 6 5 +Vref2 R5 R6 7 2 4 3 Vo R4 R3 –Vref1 Vin R1 R2 3 7 6 + +Vcc 100 Ω 6 IL 300 2 –Vcc –Vcc Vcc –Vcc + Vcc Vcc 20pF 4 1 2 3 4 8 7 6 5 +Vref2 7 2 4 3 Vout R4 R3 +Vref1 Vin R1 R2 3 7 6 + +Vcc 100 Ω 6 2 Vcc Vcc –Vcc + Vcc – – Non-Inverting Input Non-Inverting Output Inverting Input Inverting Output IL 300 – – –Vcc Amplifier Input Output Gain Offset Non-Inverting Inverting Inverting Inverting Inverting Inverting Non-Inverting Non-Inverting Non-Inverting Non-Inverting VOUT VIN = K3 R4 R2 R3 (R1 + R2) VOUT VIN = K3 R4 R2 (R5 + R6) R3 R5 (R1 + R2) VOUT VIN = -K3R4R2(R5+R6) R3 R5 (R1 + R2) VOUT VIN = K3 R4 R2 R3 (R1 + R2) - Vref2 = Vref1 R4 K3 R3 Vref2 = -Vref1 R3 R6 R4 (R5 + R6) K3 Vref2 = Vref1 R3 R6 R4 (R5 + R6) K3 Vref2 = -Vref1 R4 K3 R3 17189 |
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