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CAT524 Folha de dados(PDF) 3 Page - Catalyst Semiconductor

Nome de Peças. CAT524
descrição  Configured Digitally Programmable Potentiometer
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Fbricantes  CATALYST [Catalyst Semiconductor]
Página de início  http://www.catalyst-semiconductor.com
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CAT524 Folha de dados(HTML) 3 Page - Catalyst Semiconductor

 
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CAT524
3
Doc. No. 2006, Rev. E
Symbol
Parameter
Conditions
Min
Typ
Max
Units
tCSMIN
Minimum CS Low Time
150
ns
tCSS
CS Setup Time
100
ns
tCSH
CS Hold Time
0
ns
tDIS
DI Setup Time
50
ns
tDIH
DI Hold Time
50
ns
tDO1
Output Delay to 1
150
ns
tDO0
Output Delay to 0
150
ns
tHZ
Output Delay to High-Z
400
ns
tLZ
Output Delay to Low-Z
400
ns
tBUSY
Erase/Write Cycle Time
4
5
ms
tPS
PROG Setup Time
150
ns
tPROG
Minimum Pulse Width
700
ns
tCLKH
Minimum CLK High Time
500
ns
tCLKL
Minimum CLK Low Time
300
ns
fC
Clock Frequency
DC
1
MHz
tDS
DPP Settling Time to 1 LSB
CLOAD = 10 pF, VDD = +5V
3
10
µs
CLOAD = 10 pF, VDD = +3V
6
10
µs
NOTES: 1. All timing measurements are defined at the point of signal crossing VDD / 2.
2. These parameters are periodically sampled and are not 100% tested.
3. The 24k
Ω +20% resistors are configured as 4 resistors in parallel which would provide a measured value between VREFH and
VREFL of 6kΩ +20%. The individual 24kΩ resistors are not measurable but guaranteed by design and verification of the 6kΩ
+20% value.
AC ELECTRICAL CHARACTERISTICS:
VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified
CL=100pF,
see note 1
Digital
Analog
POTENTIOMETER CHARACTERISTICS
VDD = +2.7V to +5.5V, VREFH = VDD, VREFL = 0V, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
RPOT
Potentiometer Resistance
See Note 3
24
k
RPOT to RPOT Match
+0.5
+1
%
Pot Resistance Tolerance
+20
%
Voltage on VREFH pin
2.7
VDD
V
Voltage on VREFL pin
0V
VDD - 2.7
V
Resolution
0.4
%
INL
Integral Linearity Error
0.5
1
LSB
DNL
Differential Linearity Error
0.25
0.5
LSB
ROUT
Buffer Output Resistance
10
IOUT
Buffer Output Current
3
mA
TCRPOT
TC of Pot Resistance
300
ppm/˚C
CH/CL
Potentiometer Capacitances
8/8
pF


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