參數(shù)資料
型號(hào)： MAX1282
廠商： Maxim Integrated Products, Inc.
英文描述： 300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference
中文描述： 300ksps/400ksps、單電源、4通道、串行12位ADC，內(nèi)置電壓基準(zhǔn)
文件頁(yè)數(shù)： 5/24頁(yè)
文件大?。?/td> 310K
代理商： MAX1282
M
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS—MAX1283 (continued)
(V
DD1
= V
DD2
= +2.7V to +3.6V, COM = GND, f
OSC
= 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external
+2.5V at REF, REFADJ = V
DD1
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Normal operating mode
Normal operating mode
Normal operating mode
CONDITIONS
MHz
%
0.5
40
4.8
60
f
SCLK
Serial Clock Frequency
Duty Cycle
ANALOG INPUTS
(CH3–CH0, COM)
ps
<50
Aperture Jitter
ns
10
Aperture Delay
ns
625
t
ACQ
Track/Hold Acquisition Time
μs
3.3
t
CONV
Conversion Time (Note 5)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
To power down the internal reference
For small adjustments, from 1.22V
0 to 0.75mA output load
On/off leakage current, V
CH_
= 0 or V
DD1
T
A
= +25°C
Bipolar, V
COM
or V
CH_
= V
REF
/2,
referenced to COM or CH_
Unipolar, V
COM
= 0
V/V
2.05
Buffer Voltage Gain
EXTERNAL REFERENCE
(reference buffer disabled, reference applied to REF)
V
1.4
V
DD1
- 1.0
REFADJ Buffer Disable
Threshold
mV
±100
REFADJ Input Range
V
1.22
REFADJ Output Voltage
μF
0.01
10
Capacitive Bypass at REFADJ
μF
4.7
10
Capacitive Bypass at REF
mV/mA
0.1
2.0
Load Regulation (Note 7)
ppm/°C
±15
TC V
REF
REF Output Temperature
Coefficient
mA
15
REF Short-Circuit Current
V
2.480
2.500
2.520
V
REF
REF Output Voltage
pF
18
Input Capacitance
INTERNAL REFERENCE
μA
±0.001
±1
Multiplexer Leakage Current
±V
REF
/2
V
V
REF
V
CH_
Input Voltage Range, Single
Ended and Differential (Note 6)
V
IN
= 0 or V
DD2
In full power-down mode, f
SCLK
= 0
V
REF
= 2.500V, f
SCLK
= 0
V
REF
= 2.500V, f
SCLK
= f
MAX
(Note 8)
pF
15
C
IN
Input Capacitance
μA
±1
I
IN
Input Leakage
V
0.2
V
HYST
Input Hysteresis
V
0.8
V
INL
Input Low Voltage
V
2.0
V
INH
Input High Voltage
5
REF Input Current
320
μA
200
350
V
1.0
V
DD1
+
50mV
REF Input Voltage Range
V/V
2.05
Buffer Voltage Gain
CONVERSION RATE
DIGITAL INPUTS
(DIN, SCLK,
CS
,
SHDN
)
相關(guān)PDF資料
PDF描述
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