Rejection Performance(1,6) Common Mode DC R" />
參數(shù)資料
型號： MCP3551DM-PCTL
廠商： Microchip Technology
文件頁數(shù)： 31/36頁
文件大小： 0K
描述： BOARD DEMO FOR MCP3551
產(chǎn)品培訓(xùn)模塊： MCP3901 Analog Front End
標準包裝： 1
系列： PICtail™
ADC 的數(shù)量： 1
位數(shù)： 22
采樣率（每秒）： 14
數(shù)據(jù)接口： 串行
輸入范圍： ±VREF
工作溫度： -40°C ~ 125°C
已用 IC / 零件： MCP3551
已供物品： 板，CD
MCP3550/1/3
DS21950E-page 4
2009 Microchip Technology Inc.
Rejection Performance(1,6)
Common Mode DC Rejection
—
-135
—
dB
VCM range from 0 to VDD
Power Supply DC Rejection
—
-115
—
dB
Common Mode 50/60 Hz Rejection
CMRR
—
-135
—
dB
VCM varies from 0V to VDD
Power Supply 50/60 Hz Rejection
PSRR
—
-85
—
dB
MCP3551 only, VDD varies from
4.5V to 5.5V
Power Supply 50/60 Hz Rejection
PSRR
—
-120
—
dB
MCP3550-50 or MCP3550-60 only
at 50 or 60 Hz respectively, VDD
varies from 4.5V to 5.5V
Normal Mode 50 and 60 Hz
Rejection
NMRR
—
-85
—
dB
MCP3551 only,
0 < VCM < VDD,
-VREF < VIN = (VIN + -VIN-) < +VREF
Normal Mode 50 or 60 Hz
Rejection
NMRR
—
-120
—
dB
MCP3550-50 or MCP3550-60 only
at 50 or 60 Hz respectively,
0 < VCM < VDD,
-VREF < VIN = (VIN + -VIN-) < +VREF
Analog Inputs
Differential Input Range
VIN+ VIN-
-VREF
—+VREF
V
Absolute/Common Mode Voltages
VSS - 0.3
—
VDD + 0.3
V
Analog Input Sampling Capacitor
—
10
—
pF
Differential Input Impedance
—
2.4
—
M
Shutdown Mode Leakage Current
—
1
—
nA
VIN+ = VIN- = VDD; CS = VDD
Reference Input
Voltage Range
0.1
—
V
DD
V
Reference Input Sampling
Capacitor
—15
—
pF
Reference Input Impedance
—
2.4
—
M
Shutdown Mode Reference
Leakage Current
—1
—
nA
VIN+ = VIN- = VSS; CS = VDD
Power Requirements
Power Supply Voltage Range
VDD
2.7
—
5.5
V
MCP3550-50, MCP3551 Supply
Current
IDD
—
120
170
A
VDD = 5V
—100
—
A
VDD = 2.7V
MCP3550-60, MCP3553 Supply
Current
IDD
—
140
185
A
VDD = 5V
—120
—
A
VDD = 2.7V
Supply Current, Sleep Mode
IDDSL
—10
A
Supply Current, Shutdown Mode
IDDS
——
1
A
CS = SCK = VDD
Serial Interface
Voltage Input High (CS, SCK)
VIH
0.7 VDD
——
V
Voltage Input Low (CS, SCK)
VIL
——
0.4
V
Voltage Output High (SDO/RDY)VOH
VDD - 0.5
—
V
VOH = 1 mA, VDD = 5.0V
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C
≤ TA ≤ +85°C, VDD = 2.7V or 5.0V.
VREF = 2.5V. VIN+ = VIN- = VCM = VREF/2. All ppm units use 2*VREF as full scale range. Unless otherwise noted, specification
applies to entire MCP3550/1/3 family.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
This parameter is established by characterization and not 100% tested.
2:
INL is the difference between the endpoints line and the measured code at the center of the quantization band.
3:
This current is due to the leakage current and the current due to the offset voltage between VIN+ and VIN-.
4:
Input impedance is inversely proportional to clock frequency; typical values are for the MCP3550/1 device. VREF =5V.
5:
Characterized by design, but not tested.
6:
Rejection performance depends on internal oscillator accuracy; see Section 4.0 “Device Overview” for more informa-
tion on oscillator and digital filter design. MCP3550/1 device rejection specifications characterized from 49 to 61 Hz.
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