cat5172 ON Semiconductor, cat5172 Datasheet - Page 3

• Manufacturer Part Number: cat5172
• Description: 256-position Spi Compatible Digital Potentiometer
• Manufacturer: ON Semiconductor

DC CHARACTERISTICS — RHEOSTAT MODE
DC CHARACTERISTICS — POTENTIOMETER DIVIDER MODE
RESISTOR TERMINALS
DIGITAL INPUTS
POWER SUPPLIES
Table 4. ELECTRICAL CHARACTERISTICS: 50 kW and 100 kW Versions
V
Resistor Differential Nonlinearity (Note 3)
Resistor Integral Nonlinearity (Note 3)
Nominal Resistor Tolerance (Note 4)
Resistance Temperature Coefficient
Wiper Resistance
Resolution
Differential Nonlinearity (Note 5)
Integral Nonlinearity (Note 5)
Voltage Divider Temperature Coefficient
Full−Scale Error
Zero−Scale Error
Voltage Range (Note 6)
Capacitance (Note 7) A, B
Capacitance (Note 7) W
Common−Mode Leakage (Note 7)
Input Logic High
Input Logic Low
Input Logic High
Input Logic Low
Input Current
Input Capacitance (Note 7)
Power Supply Range
Supply Current
Power Dissipation (Note 8)
Power Supply Sensitivity
2. Typical specifications represent average readings at +25°C and V
3. Resistor position nonlinearity error R−INL is the deviation from an ideal value measured between the maximum resistance and the minim-
4. V
5. INL and DNL are measured at VW with the DPP configured as a potentiometer divider similar to a voltage output D/A converter. V
6. Resistor terminals A, B, W have no limitations on polarity with respect to each other.
7. Guaranteed by design and not subject to production test.
8. PDISS is calculated from (I
9. All dynamic characteristics use V
DD
um resistance wiper positions. R−DNL measures the relative step change from ideal between successive tap positions. Parts are guaran-
teed monotonic.
and V
= 5 V ±10%, or 3 V ±10%; V
AB
= V
B
= 0 V. DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
DD
, Wiper (V
Parameter
W
) = no connect.
DD
A
x V
= V
DD
DD
DD
). CMOS logic level inputs result in minimum power dissipation.
= 5 V.
; V
nV
B
V
V
= 0 V; –40°C < T
DD
AB
IH
f = 1 MHz, measured to GND,
f = 1 MHz, measured to GND,
= 5 V or V
= V
R
R
= +5 V ±10%, Code = Midscale
V
WB
WB
IH
DD
Test Conditions
V
V
, V
, V
= 5 V or V
Code = 0 x 80
Code = 0 x 80
A
IN
, Wiper = no connection
Code = 0xFF
Code = 0x80
Code = 0x00
A
A
V
V
V
V
V
V
= V
T
http://onsemi.com
= 0 V or 5 V
DD
DD
DD
DD
= no connection
= no connection
A
DD
DD
IL
= 25°C
B
= 0 V, V
= 5 V
= 5 V
= 3 V
= 3 V
= 5 V
= 3 V
= V
A
IL
< +85°C; unless otherwise noted.
DD
= 0 V
3
/2
DD
DD
= 5 V.
= 5 V
V
nR
nV
Symbol
DD RANGE
R−DNL
V
V
R−INL
V
P
nR
PSS
DNL
C
V
V
I
WFSE
WZSE
A,B,W
V
V
C
INL
I
DISS
R
C
AB
I
DD
W
CM
IL
N
A,B
IH
IH
IL
IL
IL
W
W
AB
/nT
/nT
0.7 x V
0.7 x V
GND
Min
−20
2.7
−1
−2
−1
−1
−3
0
DD
DD
(Note 2)
±0.1
±0.4
±0.1
±0.4
Typ
100
100
100
0.3
50
−1
45
60
5
1
1
0.3V
0.3V
±0.05
Max
V
+20
120
250
5.5
0.2
±1
+1
+2
+1
+1
2
8
0
3
DD
DD
DD
A
ppm/°C
ppm/°C
= V
%/%
mW
Unit
LSB
LSB
LSB
LSB
LSB
LSB
Bits
mA
pF
mA
pF
pF
nA
V
V
V
V
V
%
W
V
DD