參數(shù)資料
型號: CAT523
元件分類: 數(shù)字電位計
英文描述: Configured Digitally Programmable Potentiometer (DPP): Programmable Voltage Applications
中文描述: 配置數(shù)字可編程電位(民進黨):可編程電壓應用
文件頁數(shù): 3/10頁
文件大?。?/td> 70K
代理商: CAT523
CAT523
3
Advance Information
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
Busy
t
LZ
t
PROG
t
PS
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
Erase/Write Cycle Time
Output Delay to Low-Z
Erase/Write Pulse Width
PROG Setup Time
Minimum CLK High Time
Minimum CLK Low Time
Clock Frequency
150
100
0
50
50
700
150
500
300
DC
400
4
400
150
150
5
1
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
ns
ns
MHz
DAC Settling Time to 1/2 LSB
C
LOAD
= 10 pF, V
DD
= +5V
C
LOAD
= 10 pF, V
DD
= +3V
3
6
10
10
μ
s
μ
s
Pin Capacitance
C
IN
C
OUT
Input Capacitance
Output Capacitance
V
IN
= 0V, f = 1 MHz
(2)
V
OUT
= 0V, f = 1 MHz
(2)
8
6
pF
pF
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.
Analog Output
FSO
ZSO
I
L
R
OUT
Temperature
TC
O
Power Supply
I
DD1
I
DD2
DC ELECTRICAL CHARACTERISTICS
(Cont.)
:
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
Full-Scale Output Voltage
Zero-Scale Output Voltage
DAC Output Load Current
DAC Output Impedance
V
R
= V
REF
H–V
REF
L
V
R
= V
REF
H–V
REF
L
0.99 V
R
0.995 V
R
0.005 V
R
V
V
μ
A
LSB / V
0.01 V
R
1
100k
150k
1
V
DD
= +5V
V
DD
= +3V
I
LOAD
= 250 nA
PSSR
Power Supply Rejection
V
OUT
Temperature Coefficient
V
REF
H = +5V, V
REF
L = 0V
V
DD
= +5V, I
LOAD
= 250nA
V
REF
H to V
REF
L
200
μ
V/
°
C
TC
REF
Temperature Coefficient of
V
REF
Resistance
700
ppm /
°
C
Supply Current (Read)
Supply Current (Write)
Normal Operating
V
DD
=5V
V
DD
=3V
2.7
400
1600
1000
600
2500
1600
5.5
μ
A
μ
A
μ
A
V
V
DD
Operating Voltage Range
C
L
= 100 pF,
see note 1
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