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OPA847IDR Datasheet(PDF) 6 Page - Texas Instruments |
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OPA847IDR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 30 page OPA847 6 SBOS251E www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V (Cont.) TA = 25°C, G = +20V/V, RG = 39.2Ω, and RL = 100Ω, unless otherwise noted. 10 1 0 INPUT VOLTAGE AND CURRENT NOISE Frequency (Hz) 101 102 103 104 105 106 107 2.7pA/ √Hz Current Noise 0.85nV/ √Hz Voltage Noise 50 45 40 35 30 25 20 2-TONE, 3RD-ORDER INTERMODULATION INTERCEPT Frequency (MHz) 510 15 20 25 30 35 40 45 50 G = +20V/V 20dB to matched load. 750 Ω 50 Ω OPA847 P I P O 50 Ω 50 Ω 39.2 Ω 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 –0.5 NONINVERTING GAIN FLATNESS TUNE Frequency (MHz) 1 10 100 1000 NG = 12 NG = 14 NG = 20 NG = 18 NG = 16 V O = 200mVPP A V = +12V/V NG = Noise Gain External Compensation See Figure 8 1 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 LOW GAIN INVERTING BANDWIDTH Frequency (MHz) 1 10 100 1000 G = –8 G = –4 G = –2 G = –1 V O = 0.2VPP R F = 750Ω External Compensation See Figure 6 100 10 1 RECOMMENDED R S vs CAPACITIVE LOAD Capacitive Load (pF) 1 10 100 1000 G = +20V/V 29 26 23 20 17 14 FREQUENCY RESPONSE vs CAPACITIVE LOAD Frequency (MHz) 1 10 100 1000 C = 22pF C = 47pF C = 100pF C = 10pF R S adjusted for capacitive load. 750 Ω R S OPA847 V I V O 50 Ω 1k Ω C L 39.2 Ω (1k Ω is optional.) |
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