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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L6460 датащи(PDF) 87 Page - STMicroelectronics |
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L6460 датащи(HTML) 87 Page - STMicroelectronics |
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87 / 139 page  L6460 Operational amplifiers Doc ID 17713 Rev 1 87/139 17 Operational amplifiers L6460 contains two rail to rail output, high bandwidth internally compensated operational amplifiers supplied by VGPIO_SPI pin. The operative supply range is 3.3 V ± 4.5% Each operational amplifier can have all pin accessible or, to save pins, can be internally configured as a buffer. They can also be used as comparators; to do that the user must disable internal compensation by writing a logic level “1” in the OpXCompMode bit in the OpAmpXCtrl register. in Figure 26 are reported the block diagrams of the two operational amplifiers. Figure 26. Configurable 3.3 V operational amplifiers Note: Op1EnPlusRef and Op2EnPlusRef cannot be used to drive external pin so the user must be sure not to enable the path between one of these voltage references and the external pin. GPIO[10] GPIO[9] GPIO[11] To A/D System VGPIO_SPI Op1Ref[1:0] Op1BufConf Op1EnIntRef EnOp1 Op1EnMinusPin Op1EnPlusPin OpAmp 1 Op1PlusRef + - - + EnOp2 Op2EnPlusPin Op2EnMinusPin Op2BufConf Op2EnIntRef GPIO[13] GPIO[12] GPIO[14] Op1CompMode Op2CompMode Op2PlusRef Op2Ref[1:0] + - VGPIO_SPI |
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