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參數(shù)資料
| 型號(hào)： | CAT525 |
| 元件分類(lèi)： | 數(shù)字電位計(jì) |
| 英文描述： | Configured Digitally Programmable Potentiometer (DPP⑩): Programmable Voltage Applications |
| 中文描述： | 配置數(shù)字可編程電位（民進(jìn)黨⑩）：可編程電壓應(yīng)用 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 82K |
| 代理商： | CAT525 |
CAT525
3
Doc. No. 25078-00 4/01 - A M-1
DC ELECTRICAL CHARACTERISTICS
(Cont.)
:
V
DD
= +2.7V to +5.5V, V
REF
H = V
DD
, V
REF
L = 0V
, unless otherwise specified
Symbol
Analog Output
FSO
ZSO
I
L
R
OUT
Parameter
Conditions
Min
Typ
Max
Units
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
DAC 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
Pin Capacitance
C
IN
C
OUT
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.
Input Capacitance
Output Capacitance
V
IN
= 0V, f = 1 MHz
(2)
V
OUT
= 0V, f = 1 MHz
(2)
—
—
8
6
—
—
pF
pF
C
L
= 100 pF,
see note 1
AC ELECTRICAL CHARACTERISTICS:
V
DD
= +2.7V to +5.5V, V
REF
H = V
DD
, V
REF
L = 0V
, unless otherwise specified
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
k
k
0.01 V
R
1
1
1
1
V
DD
= V
REF
H = +5V
V
DD
= V
REF
H = +3V
I
LOAD
= 1
μ
A
PSSR
Temperature
TC
O
Power Supply Rejection
LSB / V
V
OUT
Temperature Coefficient
V
DD
= +5V, I
LOAD
= 250nA
V
REF
H= +5V, V
REF
L = 0V
V
REF
H to V
REF
L
—
—
200
μ
V/
°
C
TC
REF
Temperature Coefficient of
V
REF
Resistance
—
700
—
ppm /
°
C
Power Supply
I
DD1
I
DD2
Supply Current (Read)
Supply Current (Write)
Normal Operating
Programming, 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
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