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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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THS7001 Arkusz danych(PDF) 12 Page - Texas Instruments |
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THS7001 Arkusz danych(HTML) 12 Page - Texas Instruments |
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12 / 32 page  THS7001, THS7002 70-MHz PROGRAMMABLE-GAIN AMPLIFIERS SLOS214B – OCTOBER 1998 – REVISED AUGUST 1999 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TYPICAL CHARACTERISTICS Figure 29 THS7002 PREAMP CHANNEL-TO-CHANNEL CROSSTALK –40 –60 100k 10M 100M –90 f – Frequency – Hz VCC = ±15 V & ±5 V G = 2 VO(PP) = 1.3 V RL = 1 kΩ RF = 499 Ω 1M Preamp–1 Input Preamp–2 Output –80 –50 –70 Preamp–2 Input Preamp–1 Output Figure 30 PREAMP-TO-PGA CROSSTALK vs FREQUENCY –40 100k f – Frequency – Hz Preamp – Input PGA – Output –50 –60 –70 –80 –90 1M 10M 100M VCC = ±15 V & ±5 V RL = 1 kΩ Preamp: G = 2 RF = 499 Ω PGA: G = +2 dB PGA – Input Preamp – Output Figure 31 PGA INPUT REFERRED VOLTAGE NOISE vs FREQUENCY 10k 1k 100 10 10 100 1k 10k 100k f – Frequency – Hz 1 G = – 22 dB G = – 10 dB G = – 16 dB G = – 4 dB G = + 2 dB G = + 8 dB G = +14 dB G = +20 dB Figure 32 PGA CHANNEL-TO-CHANNEL GAIN ACCURACY vs GAIN SETTING Gain Setting – dB 0.4 0.3 0.2 0.1 0 –0.1 –25 –20 –15 –10 –5 0 5 –0.2 –0.3 –0.4 10 15 20 VCC = 25_ C VCC = ±5 V VCC = ±15 V Figure 33 –0.4 –0.3 –0.2 –0.1 –0.0 0.1 0.2 0.3 0.4 –40 –20 0 20 40 60 80 100 NORMALIZED PGA GAIN ACCURACY vs TEMPERATURE TA – Free-AiirTemperature – °C VCC=±5 V ±15 V Typical For All Gains Figure 34 PGA FREQUENCY RESPONSE 26 2 100k 10M 100M –28 f – Frequency – Hz 1M G = 1,1,1 –22 20 –4 VCC = ±15 V RL = 1 kΩ VO(PP) = 0.4 V –16 –10 8 14 1G G = 1,1,0 G = 1,0,1 G = 1,0,0 G = 0,1,1 G = 0,1,0 G = 0,0,1 G = 0,0,0 Figure 35 PGA FREQUENCY RESPONSE 26 2 100k 10M 100M –28 f – Frequency – Hz 1M G = 1,1,1 –22 20 –4 VCC = ± 5 V RL = 1 kΩ VO(PP) = 0.4 V –16 –10 8 14 1G G = 1,1,0 G = 1,0,1 G = 1,0,0 G = 0,1,1 G = 0,1,0 G = 0,0,1 G = 0,0,0 Figure 36 PGA LARGE AND SMALL SIGNAL FREQUENCY RESPONSE 100k 10M 100M f – Frequency – Hz 1M 1G 12 VO(PP) = 3.2 V 6 VO(PP) = 1.6 V 0 VO(PP) = 0.8 V –12 VO(PP) = 0.2 V –6 VO(PP) = 0.4 V VCC = ± 5 V RL = 1 kΩ G = +2 dB –18 18 Figure 37 PGA LARGE AND SMALL SIGNAL FREQUENCY RESPONSE 100k 10M 100M f – Frequency – Hz 1M 12 VO(PP) = 3.2 V 6 VO(PP) = 1.6 V 0 VO(PP) = 0.8 V –12 VO(PP) = 0.2 V –6 VO(PP) = 0.4 V VCC = ± 15 V RL = 1 kΩ G = +2 dB –18 18 1G |
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