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參數(shù)資料
型號(hào)： MCP3425EV
廠商： Microchip Technology
文件頁(yè)數(shù)： 33/38頁(yè)
文件大?。?/td> 0K
描述： EVALUATION BOARD FOR MCP3425
產(chǎn)品培訓(xùn)模塊： MCP3901 Analog Front End
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 16
采樣率（每秒）： 15 ~ 240
數(shù)據(jù)接口： I²C
輸入范圍： ±2.048 V
工作溫度： -40°C ~ 125°C
已用 IC / 零件： MCP3425
已供物品： 板
產(chǎn)品目錄頁(yè)面： 672 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： MCP3425A0T-E/CHDKR-ND - IC ADC 16BIT I2C PROGBL SOT23-6
MCP3425A0T-E/CHCT-ND - IC ADC 16BIT I2C PROGBL SOT23-6
MCP3425A0T-E/CHTR-ND - IC ADC 16BIT I2C PROGBL SOT23-6
MCP3425
DS22072B-page 4
2009 Microchip Technology Inc.
TEMPERATURE SPECIFICATIONS
Offset Error
VOS
—
30
—
V
Tested at PGA = 1
VDD = 5.0V and DR = 15 SPS
Offset Drift vs. Temperature
—
300
—
nV/°C
VDD = 5.0V
Common-Mode Rejection
—
100
—
dB
at DC and PGA =1,
—
105
—
dB
at DC and PGA =8,
TA = +25°C
Gain vs. VDD
—
5
—
ppm/V
TA = +25°C, VDD = 2.7V to 5.5V,
PGA = 1
Power Supply Rejection at DC
—
95
—
dB
TA = +25°C, VDD = 2.7V to 5.5V,
PGA = 1
Power Requirements
Voltage Range
VDD
2.7
—
5.5
V
Supply Current during
Conversion
IDDA
—
155
190
A
VDD = 5.0V
—
145
—
A
VDD = 3.0V
Supply Current during Standby
Mode
IDDS
—0.1
0.5
A
I2C Digital Inputs and Digital Outputs
High level input voltage
VIH
0.7 VDD
—VDD
V
Low level input voltage
VIL
—
0.3VDD
V
Low level output voltage
VOL
——
0.4
V
IOL = 3 mA, VDD = +5.0V
Hysteresis of Schmitt Trigger
for inputs (Note 7)
VHYST
0.05VDD
——
V
fSCL = 100 kHz
Supply Current when I2C bus
line is active
IDDB
——
10
A
Input Leakage Current
IILH
——
1
A
VIH = 5.5V
IILL
-1
—
A
VIL = GND
Pin Capacitance and I2C Bus Capacitance
Pin capacitance
CPIN
—
10
pF
I2C Bus Capacitance
Cb
—
400
pF
Electrical Characteristics: Unless otherwise indicated, TA = -40°C to +85°C, VDD = +5.0V, VSS = 0V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range
TA
-40
—
+85
°C
Operating Temperature Range
TA
-40
—
+125
°C
Storage Temperature Range
TA
-65
—
+150
°C
Thermal Package Resistances
Thermal Resistance, 6L SOT-23
θ
JA
—190.5
—
°C/W
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise specified, all parameters apply for TA = -40°C to +85°C, VDD = +5.0V, VSS = 0V,
VIN+ = VIN- = VREF/2. All ppm units use 2*VREF as full-scale range.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note
1:
Any input voltage below or greater than this voltage causes leakage current through the ESD diodes at the input pins.
This parameter is ensured by characterization and not 100% tested.
2:
This input impedance is due to 3.2 pF internal input sampling capacitor.
3:
The total conversion speed includes auto-calibration of offset and gain.
4:
INL is the difference between the endpoints line and the measured code at the center of the quantization band.
5:
Includes all errors from on-board PGA and VREF.
6:
Full Scale Range (FSR) = 2 x 2.048/PGA = 4.096/PGA.
7:
This parameter is ensured by characterization and not 100% tested.
8:
This parameter is ensured by design and not 100% tested.
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