參數(shù)資料
型號: L6460TR
廠商: STMICROELECTRONICS
元件分類: 運動控制電子
英文描述: STEPPER MOTOR CONTROLLER, PQFP64
封裝: 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁數(shù): 126/139頁
文件大小: 3837K
代理商: L6460TR
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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