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TL032ACD 数据表(PDF) 41 Page - Texas Instruments |
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TL032ACD 数据表(HTML) 41 Page - Texas Instruments |
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41 / 68 page  TL03x, TL03xA ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS SLOS180C – FEBRUARY 1997 – REVISED DECEMBER 2001 41 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION input characteristics The TL03x and TL03xA are specified with a minimum and a maximum input voltage that, if exceeded at either input, could cause the device to malfunction. Due to of the extremely high input impedance and resulting low bias-current requirements, the TL03x and TL03xA are well suited for low-level signal processing; however, leakage currents on printed circuit boards and sockets easily can exceed bias-current requirements and cause degradation in system performance. It is a good practice to include guard rings around inputs (see Figure 61). These guard rings should be driven from a low-impedance source at the same voltage level as the common-mode input. Unused amplifiers should be connected as grounded unity-gain followers to avoid oscillation. (c) UNITY-GAIN AMPLIFIER (b) INVERTING AMPLIFIER (a) NONINVERTING AMPLIFIER VO VI VI VO VO VI – + Figure 61. Use of Guard Rings |
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