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參數(shù)資料
| 型號(hào)： | MAX1185 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs |
| 中文描述： | 雙路、10位、20Msps、+3V、低功耗ADC，內(nèi)置電壓基準(zhǔn)及復(fù)用并行輸出 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大?。?/td> | 495K |
| 代理商： | MAX1185 |
M
Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3V, OV
DD
= +2.5V, 0.1μF and 1μF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a
10k
resistor, V
IN
= 2Vp-p (differential w.r.t. COM), C
L
= 10pF at digital outputs (Note 5), f
CLK
= 20MHz,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum REFP, COM Source
Current
I
SOURCE
5
mA
Maximum REFP, COM Sink
Current
I
SINK
-250
μA
Maximum REFN Source Current
Maximum REFN Sink Current
UNBUFFERED EXTERNAL REFERENCE (V
REFIN
= AGND, reference voltage applied to REFP, REFN, and COM)
R
REFP
,
R
REFN
REFN and COM
I
SOURCE
I
SINK
250
-5
μA
mA
REFP, REFN Input Resistance
Measured between REFP and COM, and
4
k
Differential Reference Input
Voltage
V
REF
V
REF
= V
REFP
- V
REFN
1.024
±10%
V
COM Input Voltage
V
COM
V
DD
/2
±
10%
V
REFP Input Voltage
V
REFP
V
COM
+
V
REF
/2
V
REFN Input Voltage
V
REFN
V
COM
-
V
REF
/2
V
DIGITAL INPUTS (CLK, PD,
OE
, SLEEP, T/B)
CLK
PD,
OE
, SLEEP, T/B
CLK
PD,
OE
, SLEEP, T/B
0.8
V
DD
0.8
OV
DD
Input High Threshold
V
IH
V
0.2
V
DD
0.2
OV
DD
Input Low Threshold
V
IL
V
Input Hysteresis
V
HYST
I
IH
I
IL
C
IN
0.1
V
V
IH
= OV
DD
or V
DD
(CLK)
V
IL
= 0
±
5
±
5
Input Leakage
μA
Input Capacitance
DIGITAL OUTPUTS (D0A/B
–
D9A/B, A/B)
Output Voltage Low
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
5
pF
V
OL
V
OH
I
LEAK
C
OUT
I
SINK
= -200μA
I
SOURCE
= 200μA
OE
= OV
DD
OE
= OV
DD
0.2
V
V
μA
pF
OV
DD
- 0.2
±
10
5
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