MSM587 查看數據表（PDF） - Oki Electric Industry

零件编号

产品描述 (功能)

生产厂家

MSM587

Built-in 16 bit PWM and 8 bit A/D Converter, High-speed High-preformance 16 bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM66585/586/587/P587/Q587

Definition of terms

• Resolution

Resolution is the minimum input analog value that can be resolved. With 8 bits, 28=256 so

resolution can be to (VREF-AGND) ÷ 256.

• Linearity error

Linearity error is the difference between actual conversion characteristics and ideal

conversion characteristics of an 8-bit A/D converter (so this does not include quantization

error).

Ideal conversion characteristics would be to divide the voltage between VREF and AGND

into 256 equal steps.

• Differential linearity error

Differential linearity error indicates slope of conversion characteristics. The change in

analog input voltage value that would change the digital output by one bit is ideally 1 LSB

= (VREF-AGND) ÷ 256, so differential linearity error is the difference between this ideal bit

size and the actual bit size anywhere in the conversion range.

• Zero scale error

Zero scale error is the difference between actual conversion characteristics and ideal

conversion characteristics at the point where digital output switches from 00H to 01H.

• Full scale error

Full scale error is the difference between actual conversion characteristics and ideal

conversion characteristics at the point where digital output switches from FEH to FFH.

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