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OP27AFKB 数据表(PDF) 12 Page - Texas Instruments |
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OP27AFKB 数据表(HTML) 12 Page - Texas Instruments |
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12 / 22 page ![]() OP27A, OP27C LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL-AMPLIFIER SLOS100E − FEBRUARY 1989 − REVISED FEBRUARY 2010 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TYPICAL CHARACTERISTICS EQUIVALENT INPUT NOISE VOLTAGE vs BANDWIDTH VCC ± = ± 15 V RS = 20 Ω TA = 25°C 10 1 0.1 0.01 0.1 110 100 Bandwidth − kHz (0.1 Hz to frequency indicated) TOTAL EQUIVALENT INPUT NOISE VOLTAGE vs SOURCE RESISTANCE 10 k 1 k 100 100 10 1 RS − Source Resistance − Ω − + RS = R1 + R2 R1 R2 f = 1 kHz Resistor Noise Only f = 10 Hz VCC ± = ± 15 V BW = 1 Hz TA = 25°C Figure 17 Figure 18 OP27A EQUIVALENT INPUT NOISE VOLTAGE vs TOTAL SUPPLY VOLTAGE VCC + − VCC − − Total Supply Voltage − V RS = 20 Ω BW = 1 Hz TA = 25°C f = 10 Hz 20 15 10 5 0 010 20 30 40 f = 1 kHz − 50 − 25 0 25 50 75 100 125 TA − Free-Air Temperature − °C OP27A EQUIVALENT INPUT NOISE VOLTAGE vs FREE-AIR TEMPERATURE VCC ± = ± 15 V RS = 20 Ω BW = 1 Hz 5 4 3 2 1 f = 10 Hz f = 1 kHz Figure 19 Figure 20 |
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