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參數(shù)資料
| 型號(hào)： | WM8181 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 12-bit 2MSPS Serial Output CIS/CCD Digitiser |
| 中文描述： | 12位2MSPS串行輸出獨(dú)聯(lián)體/防治荒漠化公約數(shù)字化儀 |
| 文件頁(yè)數(shù)： | 4/14頁(yè) |
| 文件大?。?/td> | 150K |
| 代理商： | WM8181 |
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WM8181
Advanced Information
WOLFSON MICROELECTRONICS LTD
AI Rev 3.0 January 2000
4
ELECTRICAL CHARACTERISTICS
TEST CHARACTERISTICS
AVDD = DVDD = 2.97 to 3.63V and 4.5 to 5.5V, AGND1 = AGND2 = DGND = 0V, T
A
= 0 to 70
°
C, MCLK = 24MHz
unless otherwise stated.
PARAMETER
SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
ANALOGUE SPECIFICATION
12-bit ADC including Sample and Hold. No Missing Codes Guaranteed.
Maximum sample rate
Input signal voltage for
ADC full-scale (internal
reference control)
Input signal voltage for
ADC full-scale (external
reference control)
Input signal voltage for
ADC zero-scale (internal
reference control)
Input signal voltage for
ADC zero-scale (external
reference control)
Differential non-linearity
Integral non-linearity
Analogue Inputs
Input voltage limits
VINP, VINM
References: VRT, VRB
VRT (internal reference control)
MCLK:VSMP ratio = 12:1
2
MSPS
V
VINP-VINM
1.5
VINP-VINM
VREFIN
V
VINP-VINM
0
V
VINP-VINM
0
V
DNL
INL
0.5
1.5
LSB
LSB
0
AVDD
V
AVDD = 5V
AVDD = 3.3V
AVDD = 5V
AVDD = 3.3V
AVDD = 5V
2.85
1.70
1.35
0.95
2.10 +
VREFIN/2
1.35 +
VREFIN/4
2.10 -
VREFIN/2
1.35 -
VREFIN/4
<1
V
V
V
V
V
VRB (internal reference control)
VRT (external reference control)
AVDD = 3.3V
V
AVDD = 5V
VRB (external reference control)
AVDD = 3.3V
V
VRT, VRB output leakage
Clamp
VINM to VINP leakage
VINM to VINP resistance
Power down
μA
CLAMP low
<1
50
μA
CLAMP high, AVDD = 3.3V
VINP = VINM = 2V
CLAMP high, AVDD = 5V
VINP = VINM = 1.4V
VINM to VINP resistance
30
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