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OP215AZMDA Fiches technique(PDF) 7 Page - Analog Devices |
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OP215AZMDA Fiches technique(HTML) 7 Page - Analog Devices |
7 / 8 page REV. A OP215 –7– BASIC CONNECTIONS OP215 B OP215 A 1 7 100k 200 100k 3 2 5 6 8 +15V –15V NOTES 1. TA = 125 C TO 150 C 2. RESISTORS ARE TYPE RN55D, 1% 4 Figure 5. Burn-In Circuit APPLICATIONS INFORMATION Dynamic Operating Considerations As with most amplifiers, care should be taken with lead dress, component placement, and supply de-coupling in order to ensure stability. For example, resistors from the output to an input should be placed with the body close to the input to minimize “pick up” and maximize the frequency of the feedback pole by minimizing the capacitance from the input to ground. A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input) to ac ground sets the frequency of the pole. In many instances, the frequency of this pole is much greater than the expected 3 dB frequency of the closed-loop gain and, consequently, there is negligible effect on stability margin. However, if the feedback pole is less than approximately six times the expected 3 dB frequency, a lead capacitor should be placed from the output to the negative input of the op amp. The value of the added capacitor should be such that the RC time constant of this capacitor and the resistance it parallels is greater than, or equal to, the original feedback pole time constant. OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead CERDIP (Z-Suffix) 1 4 85 0.310 (7.87) 0.220 (5.59) PIN 1 0.005 (0.13) MIN 0.055 (1.4) MAX 0.100 (2.54) BSC 15° 0° 0.320 (8.13) 0.290 (7.37) 0.015 (0.38) 0.008 (0.20) SEATING PLANE 0.200 (5.08) MAX 0.405 (10.29) MAX 0.150 (3.81) MIN 0.200 (5.08) 0.125 (3.18) 0.023 (0.58) 0.014 (0.36) 0.070 (1.78) 0.030 (0.76) 0.060 (1.52) 0.015 (0.38) 8-Lead Plastic DIP (P-Suffix) SEATING PLANE 0.060 (1.52) 0.015 (0.38) 0.210 (5.33) MAX 0.022 (0.558) 0.014 (0.356) 0.160 (4.06) 0.115 (2.93) 0.070 (1.77) 0.045 (1.15) 0.130 (3.30) MIN 8 1 4 5 PIN 1 0.280 (7.11) 0.240 (6.10) 0.100 (2.54) BSC 0.430 (10.92) 0.348 (8.84) 0.195 (4.95) 0.115 (2.93) 0.015 (0.381) 0.008 (0.204) 0.325 (8.25) 0.300 (7.62) |
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