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參數資料
| 型號： | MAX1205 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +5v sINGLE-sUPPLY, 1mSPS, 14-bIT sELF-cALIBRATING adc |
| 中文描述： | +5V單電源、1Msps、14位自校準ADC |
| 文件頁數： | 4/12頁 |
| 文件大?。?/td> | 127K |
| 代理商： | MAX1205 |
M
+5V S ingle-S upply, 1Msps, 14-Bit
S elf-Calibrating ADC
4
_______________________________________________________________________________________
C
L
= 20pF
CONDITIONS
ns
ns
ns
187
187
244
244
t
CLK
/ 2
301
301
t
CH
t
CL
t
ACQ
Clock High Time
Clock Low Time
Acquisition Time
ns
488
t
CLK
ns
4 / f
SAMPLE
t
CONV
Conversion Time
Clock Period
ns
16
75
t
REL
Bus Relinquish Time
ns
16
75
t
AC
Data Access Time
ns
ns
ns
70
150
t
OD
t
DAV
t
S
Output Delay
DAV Pulse Width
CLK-to-DAV Rising Edge
1 / f
CLK
65
145
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
DIGITAL INPUTS AND OUTPUTS
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
SYMBOL
PARAMETER
I
SOURCE
= 200μA
V
IN_
= 0 or DV
DD
CONDITIONS
4
Input Capacitance
CLK Input Low Voltage
DV
DD
- 0.8
V
IH
0.8
V
IL
Input Low Voltage
Input High Voltage
DV
DD
- 0.4
DV
DD
- 0.03
V
OH
Output High Voltage
0.8
CLK
VIL
AV
DD
- 0.8
CLK
VIH
CLK Input High Voltage
9
C
CLK
I
IN_
I
CLK
V
OL
CLK Input Capacitance
Digital Input Current
Clock Input Current
Output Low Voltage
±0.1
±1
70
±10
+10
400
MIN
TYP
MAX
-10
±0.1
3.5
±10
I
LEAKAGE
C
OUT
Three-State Leakage Current
Three-State Output Capacitance
μA
mV
μA
pF
pF
V
V
V
V
V
pF
μA
UNITS
TIMING CHARACTERISTICS
(AV
DD
= +5V ±5%, DV
DD
= DRV
DD
= +3.3V, f
CLK
= 2.048MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
Note 1:
Reference inputs driven by operational amplifiers for Kelvin-sensed operation.
Note 2:
For unipolar mode, the analog input voltage V
INP
must be within 0V and V
REF
, V
INN
= V
REF
/ 2; where V
REF
= V
RFPS
- V
RFNS
.
For differential mode, the analog inputs INP and INN must be within 0V and V
REF
; where V
REF
= V
RFPS
- V
RFNS
. The com-
mon mode of the inputs INP and INN is V
REF
/ 2.
Note 3:
Minimum and maximum parameters are not tested. Guaranteed by design.
Note 4:
R
I
varies inversely with sample rate.
Note 5:
Calibration remains valid for temperature changes within ±20°C and power-supply variations ±5%.
Note 6:
All AC specifications are shown for the differential mode.
ST_CAL = 1, Figure 8
f
CLK
cycles
17,400
t
CAL
Calibration Time
I
SINK
= 1.6mA
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