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MAX1188数据手册封面

MAX1188 Datasheet

  • MAX1188

  • " 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog In...

  • 337.78KB

  • Maxim   Maxim

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16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
MAX1177/MAX1178/MAX1188
MAX1178
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
REF
MAX1177
MAX1178
MAX1188
ANALOG
INPUT
**
ANALOG INPUT CURRENT (mA)
1.5
1.0
0.5
0
-0.5
-1.0
*MAX1177 ONLY.
**MAX1178/MAX1188 ONLY.
-1.5
-5.0
-2.5
0
2.5
5.0
ANALOG INPUT VOLTAGE (V)
STANDBY
MODE
SHUTDOWN
MODE
MAX427
*
AIN
Figure 11. MAX1177/MAX1178/MAX1188 Fast-Settling Input
Buffer
Figure 12a. MAX1178 Analog Input Current
The ADC is sensitive to high-frequency noise on the
AV
DD
supply. Bypass AV
DD
to AGND with a 0.1碌F
capacitor in parallel with a 1碌F to 10碌F low-ESR capac-
itor with the smallest capacitor closest to the device.
Keep capacitor leads short to minimize stray induc-
tance.
MAX1188
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
1.5
ANALOG INPUT CURRENT (mA)
1.0
0.5
0
-0.5
-1.0
-1.5
-10
-5
0
5
10
ANALOG INPUT VOLTAGE (V)
STANDBY
MODE
SHUTDOWN
MODE
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values
on an actual transfer function from a straight line. This
straight line can be either a best-straight-line fit or a line
drawn between the end points of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1177/MAX1178/
MAX1188 are measured using the end-point method.
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step width and the ideal value of 1 LSB. A
DNL error specification of 1 LSB guarantees no missing
codes and a monotonic transfer function.
Figure 12b. MAX1188 Analog Input Current
12
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