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Z8FMC04100QKSG 参数 Datasheet PDF下载

Z8FMC04100QKSG图片预览
型号: Z8FMC04100QKSG
PDF下载: 下载PDF文件 查看货源
内容描述: Z8喝采-R电机控制闪存MCU [Z8 Encore-R Motor Control Flash MCUs]
分类和应用: 闪存微控制器和处理器外围集成电路电机时钟
文件页数/大小: 402 页 / 4558 K
品牌: ZILOG [ ZILOG, INC. ]
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Z8FMC16100 Series Flash MCU  
Product Specification  
195  
Comparator and Operational Amplifier  
The Z8FMC16100 Series Flash MCU devices feature a general-purpose comparator and  
an operational amplifier. The comparator is a moderate speed (200ns propagation delay)  
device that is designed for a maximum input offset of 5mV. The comparator can be used to  
compare two analog input signals. General-purpose input pins (CINP and CINN) provide  
the comparator inputs. The output is available as an interrupt source.  
The operational amplifier is a two-input, one-output operational amplifier with a typical  
open loop gain of 10,000 (80dB). One general-purpose input pin, OPINP, provides a non-  
inverting amplifier input, while another general-purpose input pin, OPINN, provides the  
inverting amplifier input. The output is available at the output pin, OPOUT.  
The key operating characteristics of the operational amplifier are:  
Frequency compensated for unity gain stability  
Input common-mode range from GND (0.0V) to VDD – 1V  
Input offset voltage less than 15mV  
Output voltage swing from GND + 0.1V to VDD – 0.1V  
Input bias current less than 1nA  
Operating the operational amplifier open loop (no feedback) effectively provides an-  
other on-chip comparator, if appropriate  
Comparator Operation  
The comparator output reflects the relationship between the noninverting input and the  
inverting (reference) input. If the voltage on the noninverting input is higher than the volt-  
age on the inverting input, the comparator output is at a high state. If the voltage on the  
noninverting input is lower than the voltage on the inverting input, the comparator output  
is at a low state.  
To operate, the comparator must be enabled by setting the CMPENbit in the Comparator  
and Op Amp Register to 1. In addition the CINP and CINN comparator input alternate  
functions must be enabled on their respective general-purpose I/O pins. Refer to the GPIO  
Alternate Functions section on page 36 for more information.  
The comparator does not automatically power-down. To reduce operating current when  
not in use, the comparator may be disabled by clearing the CMPENbit to 0.  
PS024604-1005  
P R E L I M I N A R Y  
Comparator Operation