Re: 請問有沒有什麼OP......
|
||||
---|---|---|---|---|
版主
|
因為輸入條件為0V~5V @5Vdd,所以你需要一個具有 Rail-to-Rail 輸入及輸出的 OP AMP 且具有Chip Select功能。
MCP6043 是 8-pin 的 OP AMP,工作電壓1.4V~5.5V 單電源,可以直接上 sample.microchip 申請樣品。 Data Sheet : http://www.microchip.com/stellent/idc ... Id=1335&dDocName=en010445 The MCP6043 is a single amplifier with a chip select (CS) option. When CS is pulled high, the supply current drops to 20 pA (typ) and goes through the CS pin to VSS. When this happens, the amplifier is put into a high impedance state. By pulling CS low, the amplifier is enabled. If the CS pin is left floating, the amplifier will not operate properly. Figure 3-3 shows the output voltage and supply current response to a CS pulse.
發表於: 2006/6/20 10:13
|
|||
|