cat5251 Catalyst Semiconductor, cat5251 Datasheet - Page 4

• Manufacturer Part Number: cat5251
• Description: Quad Digitally Programmable Potentiometer Dpp? With 256 Taps And Spi Interface
• Manufacturer: Catalyst Semiconductor

CAT5251
POTENTIOMETER CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Notes:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
(3) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potenti-
(4) LSB = R
(5) n = 0, 1, 2, ..., 255.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
D.C. OPERATING CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
C
Symbol Parameter
TC
TC
H
V
V
V
I
I
R
R
V
I
I
V
potentiometer.
ometer. It is a measure of the error in step size.
/C
CC1
CC2
I
R
OH1
fc
SB
LO
OL1
TERM
V
LI
I
POT
POT
RATIO
IH
RPOT
IL
W
W
N
L
/C
W
TOT
Frequency Response
Parameter
Power Supply Current
Power Supply Current
Non-volatile Write
Standby Current (V
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage (V
Output High Voltage (V
Potentiometer Resistance (-00)
Potentiometer Resistance (-50)
Potentiometer Resistance Tolerance
R
Power Rating
Wiper Current
Wiper Resistance
Voltage on any R
Noise
Resolution
Absolute Linearity
Relative Linearity
Temperature Coefficient of R
Ratiometric Temp. Coefficient
Potentiometer Capacitances
/ 255 or (R
POT
Matching
H
- R
L
) / 255, single pot
H
(3)
(2)
or R
CC
= 5.0V)
CC
CC
L
Pin
= 3V)
= 6V)
POT
Test Conditions
f
V
f
V
V
V
V
I
I
SCK
SCK
OL
OH
CC
CC
IN
IN
OUT
= 3mA
= -1.6mA
= GND or V
= GND to V
= 2.5MHz, SO Open
= 6V Inputs = GND
= 2.5MHz, SO = Open
= 6V Inputs = GND
= GND to V
R
I
I
W
W
W(n)(actual)
R
= ±3mA @ V
= ±3mA @ V
Test Conditions
W(n+1)
R
25°C, each pot
4
POT
V
SS
- [R
= 50kΩ
CC
CC
- R
(1)
(1)
(1)
(1)
CC
; SO Open
= 0V
W(n)+LSB
(n)(expected)
CC
CC
(1)
= 3V
= 5V
]
(5)
(5)
V
V
GND
CC
Min
CC
Min
-1
x 0.7
- 0.8
10/10/25
±300
0.4
Typ
100
200
100
Typ
0.4
50
V
V
CC
CC
Doc. No. MD-2017 Rev. F
Max
±0.5
Max
±20
300
150
V
0.4
50
±3
±1
20
10
10
1
1
5
1
+ 1.0
CC
x 0.3
ppm/°C
ppm/°C
nV/√Hz
LSB
LSB
Units
MHz
mW
mA
kΩ
kΩ
pF
Units
%
%
%
Ω
Ω
V
mA
mA
µA
µA
µA
V
V
V
V
(4)
(4)