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OPA688U Datasheet(PDF) 8 Page - Texas Instruments |
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OPA688U Datasheet(HTML) 8 Page - Texas Instruments |
8 / 18 page OPA688 8 SBOS082A TYPICAL PERFORMANCE CURVES : VS = ±5V (Cont.) G = +2, RL = 500Ω, RF = 402Ω, VH = –VL = 2V (Figure 1 for AC performance only), unless otherwise noted. 60 50 40 30 20 10 0 –10 –20 OPEN-LOOP FREQUENCY RESPONSE Frequency (Hz) 10k 100k 1M 10M 100M 1G 0 –30 –60 –90 –120 –150 –180 –210 –240 Gain Phase V O = 0.2Vp-p –30 –35 –40 –45 –50 –55 –60 –65 –70 –75 –80 LIMITER FEEDTHROUGH Frequency (Hz) 1M 10M 50M 402 Ω 200 Ω 402 Ω V O 8 V H = 0.02Vp-p + 2VDC 6 3 0 –3 –6 –9 –12 –15 –18 –21 –24 LIMITER SMALL-SIGNAL FREQUENCY RESPONSE Frequency (Hz) 1M 10M 100M 1G V O = 0.02Vp-p 402 Ω 200 Ω 402 Ω V O 8 V H = 0.02Vp-p + 2.0VDC 2V DC 12 9 6 3 0 –3 –6 –9 –12 –15 –18 FREQUENCY RESPONSE vs CAPACITIVE LOAD Frequency (Hz) 1M 10M 100M 1G V O = 0.2Vp-p C L = 100pF C L = 0 C L = 10pF OPA688 R S 200 Ω 1k Ω is optional V IN V O C L 1k Ω 402 Ω 402 Ω 80 70 60 50 40 30 20 10 0 R S vs CAPACITIVE LOAD Capacitive Load (pF) 1 10 100 300 100 10 1 INPUT NOISE DENSITY Frequency (Hz) 100 1k 10k 100k 1M 10M Voltage Noise 6.3nV/ √Hz Current Noise 2.0pA/ √Hz |
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