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參數(shù)資料
| 型號(hào)： | MAX149BMJP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | +2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs |
| 中文描述： | 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20 |
| 封裝： | CERDIP-20 |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 221K |
| 代理商： | MAX149BMJP |
M
+2.7V to +5.25V, Low-Power, 8-Channel,
S erial 10-Bit ADCs
16
______________________________________________________________________________________
Table 6. Hard-Wired Power-Down
and Internal Clock Frequency
PD1
PD0
DEVICE MODE
0
0
Full Power-Down
0
1
Fast Power-Down
1
1
0
1
Internal Clock
External Clock
Table 5. Software Power-Down
and Clock Mode
Figure 13. Average Supply Current vs. Conversion Rate with
External Reference
1000
10,000
0.1
0.1
AVERAGE SUPPLY CURRENT
vs. CONVERSION RATE
WITH EXTERNAL REFERENCE
100
10
1
CONVERSION RATE (Hz)
1
100
10
1k
10k
1M
100k
M
V
REF
= V
DD
= 3.0V
R
=
∞
CODE = 1010101000
1 CHANNEL
8 CHANNELS
Figure 14a. MAX149 Supply Current vs. Conversion Rate,
FULLPD
100
1
0.01
0.1
1
AVERAGE SUPPLY CURRENT
vs. CONVERSION RATE
(USING FULLPD)
10
CONVERSION RATE
(Hz)
A
μ
A
100
10
1k
M
R
LOAD
=
∞
CODE = 1010101000
8 CHANNELS
1 CHANNEL
POWER-DOWN
POWERED UP
POWERED UP
DATA VALID
DATA VALID
INTERNAL
S X X X X X 1 0
S
0 0
X
X
X
X
X
S
MODE
DOUT
DIN
CLOCK
MODE
SETS INTERNAL
CLOCK MODE
SETS
POWER-DOWN
CONVERSION
CONVERSION
SSTRB
Figure 12b. Timing Diagram Power-Down Modes, Internal Clock
N/A
N/A
Power-Down
0
1.8MHz
External
Enabled
Floating
225kHz
Internal
Enabled
1
INTERNAL
CLOCK
FREQUENCY
REFERENCE-
BUFFER
COMPENSATION
DEVICE
MODE
SHDN
STATE
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