ADC reference circuit power-up time4
參數(shù)資料
型號: MC56F8156VFVE
廠商: Freescale Semiconductor
文件頁數(shù): 71/178頁
文件大?。?/td> 0K
描述: IC DSP 16BIT 40MHZ 144-LQFP
標準包裝: 60
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 40MHz
連通性: EBI/EMI,SCI,SPI
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 62
程序存儲器容量: 256KB(128K x 16)
程序存儲器類型: 閃存
RAM 容量: 8K x 16
電壓 - 電源 (Vcc/Vdd): 2.25 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 外部
工作溫度: -40°C ~ 105°C
封裝/外殼: 144-LQFP
包裝: 托盤
56F8356 Technical Data, Rev. 13
162
Freescale Semiconductor
Preliminary
ADC reference circuit power-up time4
tVREF
——
25
ms
Conversion time
tADC
—6
tAIC cycles
3
Sample time
tADS
—1
tAIC cycles
3
Input capacitance
CADI
—5
pF
Input injection current5, per pin
IADI
——
3
mA
Input injection current, total
IADIT
——
20
mA
VREFH current
IVREFH
—1.2
3
mA
ADC A current
IADCA
—25
mA
ADC B current
IADCB
—25
mA
Quiescent current
IADCQ
—0
10
μA
Uncalibrated Gain Error (ideal = 1)
EGAIN
+/- .004
+/- .015
Uncalibrated Offset Voltage
VOFFSET
—+/- 15
+/- 35
mV
Calibrated Absolute Error6
AECAL
LSBs
Calibration Factor 17
CF1
0.010380
Calibration Factor 27
CF2
-31.7
Crosstalk between channels
-60
dB
Common Mode Voltage
Vcommon
—(VREFH - VREFLO) / 2
V
Signal-to-noise ratio
SNR
64.6
db
Signal-to-noise plus distortion ratio
SINAD
59.1
db
Total Harmonic Distortion
THD
60.6
db
Spurious Free Dynamic Range
SFDR
61.1
db
Effective Number Of Bits8
ENOB
9.6
Bits
1. INL measured from Vin = .1VREFH to Vin = .9VREFH
10% to 90% Input Signal Range
2. LSB = Least Significant Bit
3. ADC clock cycles
4. Assumes each voltage reference pin is bypassed with 0.1
μF ceramic capacitors to ground
5. The current that can be injected or sourced from an unselected ADC signal input without impacting the performance of
the ADC. This allows the ADC to operate in noisy industrial environments where inductive flyback is possible.
6. Absolute error includes the effects of both gain error and offset error.
7. Please see the 56F8300 Peripheral User’s Manual for additional information on ADC calibration.
8. ENOB = (SINAD - 1.76)/6.02
Table 10-24 ADC Parameters (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
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