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參數(shù)資料
| 型號(hào)： | ML696500 |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 120 MHz, RISC MICROCONTROLLER, PBGA272 |
| 封裝： | 15 X 15 MM, 0.65 MM PITCH, PLASTIC, LFBGA-272 |
| 文件頁(yè)數(shù)： | 6/18頁(yè) |
| 文件大?。?/td> | 284K |
| 代理商： | ML696500 |
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ML696500 and ML69Q6500
14 Oki Semiconductor
January 2005, Rev 1.1b
Preliminary
Analog-to-Digital Converter Characteristics
(VDD_CORE = 1.45 to 1.55 V, VDD_IO = 2.7 to 3.6 V, TA = –30 to +70 °C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Resolution [1]
n
—
10
bit
Linearity error [2]
EL
Analog input source
impedance
Ri
≤ tbd k
—
tbd
—
lsb
Differential linearity error [3]
ED
—
tbd
—
Zero-scale error [4]
EZS
—
tbd
—
Full-scale error [5]
EFS
—
tbd
—
Conversion time
tCONV
—
6.7
—
s
Throughput rate
—
10
—
200
kHz
1.
Resolution Minimum input analog value that can be discriminated. In a 10-bit converter, the number of discrete steps is equal to 210 (= 1024), where 10 is the resolution of the converter, so the voltage from VREF to AGND can be
divided with 1024.
2.
Linearity error is the deviation between the ideal conversion characteristic and the actual conversion characteristic of a 10-bit analog-to-digital converter (not including quantization error). The ideal conversion characteristic can be
obtained by dividing the voltage from VREF to AGND into 1024 equal steps.
3.
Differential linearity error indicates the smoothness of conversion characteristics. The range of the analog input voltage that corresponds to one converted bit of digital output is ideally 1 LSB = (VREF - AGND) /1024. The differential
linearity error is the deviation between this ideal bit size and the bit size at an arbitrary point in the conversion range.
4.
Zero-scale error is the deviation between the ideal conversion characteristics and actual conversion characteristics at the point where the digital output changes from "000h" to "001h".
5.
Full-scale error is the deviation between the ideal conversion characteristics and actual conversion characteristics at the point where the digital output changes from "3FEh" to "3FFh".
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