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參數(shù)資料
| 型號(hào)： | MAX148 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs(8通道，133ksps，串行10位A/D轉(zhuǎn)換器) |
| 中文描述： | +2.7V至+5.25V、低功耗、8通道、串行10位ADC |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 200K |
| 代理商： | MAX148 |
LSB
LSB
M
+2.7V, Low-Power, 8-Channel,
S erial 10-Bit ADC
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND, DGND .............................................. -0.3V to +6V
AGND to DGND.................................................... -0.3V to +0.3V
CH0–CH7, COM to AGND, DGND ............ -0.3V to (V
DD
+ 0.3V)
VREF to AGND........................................... -0.3V to (V
DD
+ 0.3V)
Digital Inputs to DGND............................................ -0.3V to +6V
Digital Outputs to DGND ........................... -0.3V to (V
DD
+ 0.3V)
Digital Output Sink Current.................................................25mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 11.11mW/°C above +70°C) ......... 889mW
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +3.6V, COM = 0V, f
CLK
= 2.0MHz, external clock (50% duty cycle), 15 clocks/conversion cycle (133ksps),
VREF = +2.500V applied to VREF pin, T
A
= T
MIN
to T
MAX,
unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
SSOP (derate 8.00mW/°C above +70°C) ................... 640mW
CERDIP (derate 11.11mW/°C above +70°C).............. 889mW
Operating Temperature Ranges
MAX148_C_P..................................................... 0°C to +70°C
MAX148_E_P .................................................. -40°C to +85°C
MAX148_MJ P ............................................... -55°C to +125°C
Storage Temperature Range............................ -60°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +300°C
6
μs
35
65
t
CONV
Conversion Time (Note 5)
5.5
7.5
MHz
1.0
Full-Power Bandwidth
MHz
2.25
Small-Signal Bandwidth
dB
-75
Channel-to-Channel Crosstalk
dB
70
SFDR
Spurious-Free Dynamic Range
dB
-70
THD
Total Harmonic Distortion
dB
66
SINAD
Signal-to-Noise + Distortion Ratio
LSB
±0.05
Channel-to-Channel Offset
Matching
ppm/°C
±0.25
Gain Temperature Coefficient
±0.5
±1.0
±1
±1
±2
Bits
10
Resolution
±1
±2
LSB
INL
Relative Accuracy (Note 2)
LSB
DNL
±0.15
±0.15
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
External clock = 2MHz, 12 clocks/conversion
Internal clock,
SHDN
= V
DD
Internal clock,
SHDN
= FLOAT
MAX148A
MAX148B
No missing codes over temperature
MAX148A
MAX148B
-3dB rolloff
65kHz, 2.500V
p-p
(Note 4)
Up to the 5th harmonic
MAX148A
MAX148B
CONDITIONS
Differential Nonlinearity
ns
ps
30
<50
Aperture Delay
Aperture J itter
MHz
1.8
0.225
SHDN
= FLOAT
SHDN
= V
DD
μs
1.5
t
ACQ
Track/Hold Acquisition Time
Internal Clock Frequency
0.1
0
2.0
2.0
LSB
Gain Error (Note 3)
MHz
External Clock Frequency
Data transfer only
Offset Error
DC ACCURACY
(Note 1)
DYNAMIC SPECIFICATIONS
(10kHz sine wave input, 0Vp-p to 2.500Vp-p, 133ksps, 2.0MHz external clock, bipolar input mode)
CONVERSION RATE
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