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参数资料
| 型号： | MAX187 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | ADC |
| 英文描述： | +5V, Low-Power, 12-Bit Serial ADCs(8.5μs转换时间，单通道，串行12位A/D转换器) |
| 中文描述： | +5V、低功耗、12位串行ADC |
| 文件页数： | 2/20页 |
| 文件大小： | 177K |
| 代理商： | MAX187 |
M
+5V, Low-Power, 12-Bit S erial ADCs
2
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V ±5%; GND = 0V; unipolar input mode; 75ksps, f
CLK
= 4.0MHz, external clock (50% duty cycle); MAX187—internal
reference: V
REF
= 4.096V, 4.7μF capacitor at REF pin, or MAX189—external reference: V
REF
= 4.096V applied to REF pin, 4.7μF
capacitor at REF pin; T
A
= T
MIN
to T
MAX
; unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY
(Note 1)
Resolution
12
±
1
2
Bits
MAX18_A
Relative Accuracy (Note 2)
MAX18_B
±1
LSB
MAX18_C
±2
Differential Nonlinearity
DNL
No missing codes over temperature
±1
±1
1
2
LSB
Offset Error
MAX18_A
LSB
MAX18_B/C
±3
Gain Error (Note 3)
MAX187
±3
LSB
MAX189A
±1
MAX189B/C
±3
Gain Temperature Coefficient
DYNAMIC SPECIFICATIONS
(10kHz sine wave input, 0V to 4.096V
p-p
, 75ksps)
External reference, 4.096V
±0.8
ppm/°C
Signal-to-Noise plus
Distortion Ratio
SINAD
70
dB
Total Harmonic Distortion
(up to the 5th harmonic)
THD
-80
dB
Spurious-Free Dynamic Range
SFDR
80
dB
Small-Signal Bandwidth
Rolloff -3dB
4.5
MHz
Full-Power Bandwidth
0.8
MHz
V
DD
to GND.............................................................-0.3V to +6V
AIN to GND................................................-0.3V to (V
DD
+ 0.3V)
REF to GND ...............................................-0.3V to (V
DD
+ 0.3V)
Digital Inputs to GND.................................-0.3V to (V
DD
+ 0.3V)
Digital Outputs to GND..............................-0.3V to (V
DD
+ 0.3V)
SHDN
to GND.............................................-0.3V to (V
DD
+ 0.3V)
REF Load Current (MAX187) .........................4.0mA Continuous
REF Short-Circuit Duration (MAX187)................................20sec
DOUT Current..................................................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)..500mW
16-Pin Wide SO (derate 8.70mW/°C above +70°C) ...478mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C) ......440mW
Operating Temperature Ranges:
MAX187_C_ _/MAX189_C_ _.............................0°C to +70°C
MAX187_E_ _/MAX189_E_ _ ..........................-40°C to +85°C
MAX187_MJ A/MAX189_MJ A .......................-55°C to +125°C
Storage Temperature Range............................-60°C to +150°C
Lead Temperature (soldering, 10sec)............................+300°C
ABSOLUTE MAXIMUM RATINGS
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.
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