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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
Typical Operating Characteristics (continued)
(Typical
Application Circuit,
AV
DD
= DV
DD
= +5V, external reference = +4.096V, C
REF
= 10碌F, C
REFADJ
= 0.1碌F, V
REFADJ
= AV
DD
,
C
LOAD
= 20pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25掳C.)
SINAD vs. FREQUENCY
MAX1177/78/88 toc10
SFDR vs. FREQUENCY
MAX1177/78/88 toc11
THD vs. FREQUENCY
-10
-20
-30
THD (dB)
-40
-50
-60
-70
-80
-90
MAX1177/78/88 toc12
100
90
80
70
SINAD (dB)
60
50
40
30
20
10
0
1
10
FREQUENCY (kHz)
f
SAMPLE
= 131ksps
120
100
80
SFDR (dB)
60
40
20
f
SAMPLE
= 131ksps
0
1
10
FREQUENCY (kHz)
0
-100
-110
100
1
10
f
SAMPLE
= 131ksps
100
100
FREQUENCY (kHz)
Pin Description
PIN
1
2
3
4
NAME
D4/D12
D5/D13
D6/D14
D7/D15
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output. D15 is the MSB.
Read/Convert Input. Power up and put the MAX1177/MAX1178/MAX1188 in acquisition mode by
holding R/C low during the first falling edge of
CS.
During the second falling edge of
CS,
the level on
R/C determines whether the reference and reference buffer power down or remain on after
conversion. Set R/C high during the second falling edge of
CS
to power down the reference and
buffer, or set R/C low to leave the reference and buffer powered up. Set R/C high during the third
falling edge of
CS
to put valid data on the bus.
End of Conversion.
EOC
drives low when conversion is complete.
Analog Supply Input. Bypass with a 0.1碌F capacitor to AGND.
Analog Ground. Primary analog ground (star ground).
Analog Input
Analog Ground. Connect pin 10 to pin 8.
Reference Buffer Output. Bypass REFADJ with a 0.1碌F capacitor to AGND for internal reference
mode. Connect REFADJ to AV
DD
to select external reference mode.
Reference Input/Output. Bypass REF with a 10碌F capacitor to AGND for internal reference mode.
External reference input when in external reference mode.
FUNCTION
5
R/C
6
7
8
9
10
11
12
EOC
AV
DD
AGND
AIN
AGND
REFADJ
REF
6
_______________________________________________________________________________________

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