CAT5121_13 Datasheet, PDF (3/11 Pages) ON Semiconductor – 16‐tap Digital Potentiometers (POTs)

CAT5120, CAT5121, CAT5122
Table 3. ELECTRICAL CHARACTERISTICS
(V_DD = 2.7 V to 5.5 V, V_H = V_DD, V_L = 0, T_A = −40C to +85C. Typical values are at V_DD = 2.7 V, T_A = 25C, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
DC PERFORMANCE
Resolution
16
Taps
End-to-End Resistance (−50)
37.5
50
62.5
kW
End-to-End Resistance (−10)
7.5
10
12.5
End-to-End Resistance Tempco
TC_R
Ratiometric Resistance Tempco
200
ppm/C
5
ppm/C
Integral Non-linearity
INL
0.5
LSB
Differential Non-linearity
DNL
0.5
LSB
Zero/Full-Scale Error
0.1
0.5
LSB
Wiper Resistance
R_W
DIGITAL INPUTS
200
600
W
Input High Voltage
V_IH
Input Low Voltage
V_IL
TIMING CHARACTERISTICS (Figures 7, 8)
0.7 x V_DD
V
0.3 x V_DD
V
U/D Mode to CS Setup
CS to U/D Step Setup
CS to U/D Step Hold
U/D Step Low Period
U/D Step High Period
Up/Down Toggle Rate (Note 2)
Output Settling Time (Note 3)
t_CU
t_CI
t_IC
t_IL
t_IH
f_TOGGLE
t_SETTLE
50 kW variable resistor
configuration, C_L = 10 pF
50 kW potentiometer
configuration, C_L = 10 pF
25
50
25
25
25
1
1
0.25
ns
ns
ns
ns
ns
MHz
ms
POWER SUPPLY
Supply Voltage
V_DD
Active Supply Current (Note 4)
I_DD
Standby Supply Current (Note 5)
I_SB
V_DD = +5 V
2. Up/Down Toggle Rate: f_TOGGLE = 1 / t_SETTLE
3. Typical settling times are dependent on end-to-end resistance.
4. Supply current measured while changing wiper tap, f_TOGGLE = 1 MHz.
5. Supply current measured while wiper position is fixed.
2.7
5.5
V
25
mA
0.3
1
mA
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