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參數(shù)資料
| 型號： | MCP3221DM-PCTL |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 22/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DEMO FOR PICTAIL MCP3221 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | PICtail™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 22.3k |
| 數(shù)據(jù)接口： | 串行 |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | MCP3221 |
| 已供物品： | 板，纜線，CD |
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2006 Microchip Technology Inc.
DS21732C-page 3
MCP3221
TEMPERATURE SPECIFICATIONS
Power Requirements
Operating Voltage
VDD
2.7
—
5.5
V
Conversion Current
IDD
—
175
250
A
Standby Current
IDDS
—
0.005
1
A
SDA, SCL = VDD
Active bus current
IDDA
—
120
A
Conversion Rate
Conversion Time
tCONV
—8.96
—
s
Analog Input Acquisition Time
tACQ
—1.12
—
s
Sample Rate
fSAMP
—
22.3
ksps
Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5.0V, VSS = GND.
Parameters
Symbol
Min
Typ
Max
Units
Conditions
Temperature Ranges
Industrial Temperature Range
TA
-40
—
+85
°C
Extended Temperature Range
TA
-40
—
+125
°C
Operating Temperature Range
TA
-40
—
+125
°C
Storage Temperature Range
TA
-65
—
+150
°C
Thermal Package Resistances
Thermal Resistance, 5L-SOT23
θJA
—
256
—
°C/W
DC ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5.0V, VSS = GND, RPU = 2 kΩ
TAMB = -40°C to +85°C, I2C Fast Mode Timing: fSCL = 400 kHz (Note 3).
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1: “Sample time” is the time between conversions once the address byte has been sent to the converter.
Refer to Figure 5-6.
2: This parameter is periodically sampled and not 100% tested.
3: RPU = Pull-up resistor on SDA and SCL.
4: SDA and SCL = VSS to VDD at 400 kHz.
5: tACQ and tCONV are dependent on internal oscillator timing. See Figure 5-5 and Figure 5-6 for relation to
SCL.
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