WMS7170_05 Datasheet, PDF (12/23 Pages) Winbond – NONVOLATILE DIGITAL POTENTIOMETERS WITH UP/DOWN (3-WIRE) INTERFACE

WMS7170/1
10. ELECTRICAL CHARACTERISTICS
TABLE 12 – ELECTRICAL CHARACTERISTICS (Packaged parts)
PARAMETERS
SYMBOL MIN. TYP. MAX. UNITS
CONDITIONDS
Rheostat Mode
Nominal Resistance
Different Non Linearity ^[2]
Integral Non Linearity ^[2]
Tempo¹
Wiper Resistance ^[2]
Wiper Current
Divider Mode
R
-20
DNL
-1
+20
% T=25ºC, V_W open
+1
LSB
INL
-1
+1
LSB
ΔR_AB/ΔT
300
ppm/°C
R_W
50
Ω
V_DD=5V, I=V_DD/R_Total
80
Ω
V_DD=2.7V, I=V_DD/R_Total
I_W
-1
1
mA
Resolution
Different Non Linearity ^[2]
Integral Non Linearity ^[2]
Temperature Coefficient ^[1]
Full Scale Error
Zero Scale Error
Resistor Terminal
N
DNL
INL
ΔV_w/ΔT
V_FSE
V_ZSE
8
Bits
-1
±0.2
+1
LSB
-1
±0.1
+1
LSB
+20
ppm/°C Code = 80h
-1
0
LSB Code = Full Scale
0
1
LSB Code = Zero Scale
Voltage Range
Terminal Capacitance ^[1]
Wiper Capacitance ^[1]
V_A,V_B,B V_W
C_A, C_BB
V_SS
Dynamic Characteristics ^[1]
V_DD
V
30
pF
30
pF
BW_10K
1.5
MHz V_DD=5V, V_B=B VSS
Bandwidth –3dB
BW_50K
300
KHz Code = 80h
BW_100K
200
KHz
Settling Time to 1 LSB
T_S
80
100
uS
Analog Output (Buffer enables)
Amp Output Current
I_OUT
3
mA V_O=1/2 scale
Amp Output Resistance
Rout
1
10
Ω I_L = 100uA
Total Harmonic Distortion ^[1] THD
0.08
%
V_A=2.5V, V_DD=5V, f=1kHz,
V_IN=1V_RMS
Digital Inputs/Outputs
Input High Voltage
Input Low Voltage
V_IH
0.7V_DD
V_IL
V
0.3V_DD
V
- 12 -