參數(shù)資料
型號(hào): CAT524P
英文描述: 64K x 16 Static RAM
中文描述: 數(shù)字電位器
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 85K
代理商: CAT524P
CAT525
3
Doc. No. 2001, Rev. A
POTENTIOMETER CHARACTERISTICS
V
DD
= +2.7V to +5.5V, V
REF
H = V
DD
, V
REF
L = 0V
, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
28k
+0.5
Max
Units
R
POT
Potentiometer Resistance
R
POT
to R
POT
Match
Pot
Resistance Tolerance
Voltage on V
REFH
pin
Voltage on V
REFL
pin
Resolution
+1
%
+15
%
2.7
V
DD
V
OV
V
DD
- 2.7
V
0.4
%
INL
Integral Linearity Error
0.5
1
LSB
DNL
Differential Linearity Error
0.25
0.5
LSB
mA
R
OUT
I
OUT
TC
RPOT
TC
RATIO
R
ISO
V
N
C
H
/C
L
fc
Buffer Output Resistance
10
Buffer Output Current
3
TC of Pot Resistance
300
ppm/C
Ratiometric TC
ppm/C
nV/
Hz
pF
Isolation Resistance
Noise
Potentiometer Capacitances
8/8
Frequency Response
Passive Attenuator
MHz
AC ELECTRICAL CHARACTERISTICS:
V
DD
= +2.7V to +5.5V, V
REF
H = V
DD
, V
REF
L = 0V
, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Digital
t
CSMIN
t
CSS
t
CSH
t
DIS
t
DIH
t
DO1
t
DO0
t
HZ
t
LZ
t
BUSY
t
PS
t
PROG
t
CLK
H
t
CLK
L
f
C
Analog
t
DS
Minimum CS Low Time
CS Setup Time
CS Hold Time
DI Setup Time
DI Hold Time
Output Delay to 1
Output Delay to 0
Output Delay to High-Z
Output Delay to Low-Z
Erase/Write Cycle Time
PROG Setup Time
Minimum Pulse Width
Minimum CLK High Time
Minimum CLK Low Time
Clock Frequency
150
100
0
50
50
150
700
500
300
DC
400
400
4
150
150
5
1
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
MHz
DPP Settling Time to 1 LSB
C
LOAD
= 10 pF, V
DD
= +5V
C
LOAD
= 10 pF, V
DD
= +3V
3
6
10
10
μ
s
μ
s
NOTES:
1. All timing measurements are defined at the point of signal crossing V
DD
/ 2.
2. These parameters are periodically sampled and are not 100% tested.
CL=100pF,
see note 1
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