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WMS7204 数据表(PDF) 21 Page - Winbond

部件名 WMS7204
功能描述  256-TAP QUAD-CHANNEL NON-VOLATILE DIGITAL POTENTIOMETER
PDF  32 Pages
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制造商  WINBOND [Winbond]
网页  http://www.winbond.com
标志 WINBOND - Winbond

WMS7204 数据表(HTML) 21 Page - Winbond

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WMS7204
Publication Release Date: January 2003
- 21 -
Revision 1.0
10. ELECTRICAL CHARACTERISTICS
TABLE 12 – ELECTRICAL CHARACTERISTICS
All Parameters apply across specified operating ranges unless noted (VDD: 2.7V~5.5V; Temp: –40°C~85°C)
Typical values: VDD=5V and T=25°C
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNITS
CONDITIONS
Rheostat Mode
Nominal Resistance
R
-20
+20
%
T=25ºC, VW open
Different Non Linearity
DNL
-1
0.3
+1
LSB
Integral Non Linearity
INL
-1
0.5
+1
LSB
Rheostat Tempco
1
∆RAB/∆T
500
ppm/
°
C
Wiper Resistance
2
RW
50
100
Ω
VDD=5V,
I=VDD/RTotal
80
120
Ω
VDD=2.7V,
I=VDD/RTotal
Potentiometer Mode
Resolution
1
N
8
Bits
Different Non Linearity
2
DNL
-1
+1
LSB
Integral Non Linearity
2
INL
-1
+1
LSB
Potentiometer Tempco
1
∆Vw/∆T
+20
ppm/
°
C
Code = 80h
Full Scale Error
VFSE
-1
0
LSB
Code = Full Scale
Zero Scale Error
VZSE
0
1
LSB
Code = Zero Scale
Resistor Terminal
Voltage Range
1
VA,VB,VW
VSS
VDD
V
Terminal Capacitance
1
CA, CB
30
pF
Wiper Capacitance
1
30
pF
Dynamic Characteristics
1
BW10K
1.5
MHz
BW50K
300
KHz
Bandwidth –3dB
BW100K
200
KHz
VDD=5V, VB=VSS
Code = 80h
CL=30pf
Settling Time to 1 LSB
TS
80
100
uS
VDD=5.5V=VA,
VB=VSS
Analog Output (Buffer enabled)
Amp Output Current
2
IOUT
3
mA
VO=1/2 scale
Amp Output Resistance
2
Rout
1
10
Ω
Total Harmonic Distortion
1
THD
0.08
%
VA=2.5V, VDD=5V,
f=1kHz, VIN=1VRMS
Digital Inputs/Outputs
Input High Voltage
VIH
0.7VDD
V
Input Low Voltage
VIL
0.3VDD
V
Output Low Voltage
VOL
0.4
V
IOL=2mA
Input Leakage Current
ILI
-1
+1
uA
CS
=VDD,Vin=Vss
~ VDD



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