参数资料
型号: ST92E141K4D1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CDIP32
封装: WINDOWED, SHRINK, CERAMIC, DIP-32
文件页数: 81/178页
文件大小: 1097K
代理商: ST92E141K4D1
171/178
ST92141 - ELECTRICAL CHARACTERISTICS
A/D ANALOG SPECIFICATIONS
(VDD = 5V, TA = 25°C, fINTCLK = 25MHz, unless otherwise specified)
Note:
(1) “1LSBideal” has a value of AVDD/256
(2) Including sample time
(3) This is the internal series resistance before the sampling capacitor
(4) This is a typical expected value, but not a tested production parameter.
If V(i) is the value of the i-th transition level (0
≤ i ≤ 254), the performance of the A/D converter has been evaluated as follows:
OFFS ET ERROR= deviation between the actual V(0) and the ideal V(0) (=1/2 LSB)
GAIN ERROR= deviation between the actual V(254) and the ideal V(254) - V(0) (ideal V(254)=AVDD-3/2 LSB)
DNL ERROR= max {[V(i) - V(i-1)]/LSB - 1}
INL ERROR= max {[V(i) - V(0)]/LSB - i}
ABS. ACCURA CY= overall max conversion error
(5) Simulated value.
(6) The specified values are guaranteed only if an overload condition occurs on a maximum of 2 non-selected analog input pins and the
absolute sum of input overload currents on all analog input pins does not exceed
±10 mA.
Parameter
Typical
Minimum
Maximum
Units (1)
Notes
Conversion time
138
INTCLK
(2)(6)
Sample time
85
INTCLK
(6)
Power-up time
60
s
(6)
Resolution
8
bits
Monotonicity
GUARANTEED
No missing codes
GUARANTEED
Zero input reading
00
Hex
(6)
Full scale reading
FF
Hex
(6)
Offset error
1
LSBs
(1)(4)(6)
Gain error
1LSBs
(4)(6)
Diff. Non Linearity error (DNL)
1
LSBs
(4)(6)
Int. Non Linearity error (INL)
1
LSBs
(4)(6)
Absolute Accuracy
2
LSBs
(4)(6)
Input Resistance
2.7
k
(3)(5)(6)
Hold Capacitance
1.4
pF
(5)(6)
Input Leakage
±1
A
(6)
1
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