參數(shù)資料
型號： MCP3208-BI/ST
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO14
封裝： 4.4 MM, PLASTIC, TSSOP-14
文件頁數(shù)： 23/40頁
文件大?。?/td> 722K
代理商： MCP3208-BI/ST
2008 Microchip Technology Inc.
DS21298E-page 3
MCP3204/3208
Input Voltage Range for IN- in
pseudo-differential Mode
VSS-100
—
VSS+100
mV
Leakage Current
—
0.001
±1
A
Switch Resistance
—
1000
—
Sample Capacitor
—
20
—
pF
Digital Input/Output
Data Coding Format
Straight Binary
High Level Input Voltage
VIH
0.7 VDD
——
V
Low Level Input Voltage
VIL
—
0.3 VDD
V
High Level Output Voltage
VOH
4.1
—
V
IOH = -1 mA, VDD = 4.5V
Low Level Output Voltage
VOL
——
0.4
V
IOL = 1 mA, VDD = 4.5V
Input Leakage Current
ILI
-10
—
10
A
VIN = VSS or VDD
Output Leakage Current
ILO
-10
—
10
A
VOUT = VSS or VDD
Pin Capacitance
(All Inputs/Outputs)
CIN,COUT
——
10
pF
VDD = 5.0V (Note 1)
TA = 25°C, f = 1 MHz
Timing Parameters
Clock Frequency
fCLK
—
2.0
1.0
MHz
VDD = 5V (Note 3)
VDD = 2.7V (Note 3)
Clock High Time
tHI
250
—
ns
Clock Low Time
tLO
250
—
ns
CS Fall To First Rising CLK
Edge
tSUCS
100
—
ns
Data Input Setup Time
tSU
50
—
ns
Data Input Hold Time
tHD
50
—
ns
CLK Fall To Output Data Valid
tDO
—
200
ns
See Figures 1-2 and 1-3
CLK Fall To Output Enable
tEN
—
200
ns
See Figures 1-2 and 1-3
CS Rise To Output Disable
tDIS
—
100
ns
See Figures 1-2 and 1-3
CS Disable Time
tCSH
500
—
ns
D
OUT Rise Time
tR
—
100
ns
See Figures 1-2 and 1-3 (Note 1)
D
OUT Fall Time
tF
—
100
ns
See Figures 1-2 and 1-3 (Note 1)
Power Requirements
Operating Voltage
VDD
2.7
—
5.5
V
Operating Current
IDD
—
320
225
400
—
A
VDD=VREF = 5V, DOUT unloaded
VDD=VREF = 2.7V, DOUT unloaded
Standby Current
IDDS
—0.5
2.0
A
CS = VDD = 5.0V
ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics:
Unless otherwise noted, all parameters apply at VDD = 5V, VSS = 0V, VREF = 5V,
TA = -40°C to +85°C,fSAMPLE = 100 ksps and fCLK = 20*fSAMPLE
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
This parameter is established by characterization and not 100% tested.
2:
See graphs that relate linearity performance to VREF levels.
3:
Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity
performance, particularly at elevated temperatures. See Section 6.2 “Maintaining Minimum Clock
Speed”
, “Maintaining Minimum Clock Speed”, for more information.
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