MAX1227(2003) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1227 Datasheet PDF : 24 Pages
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12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the RMS
sum of the first five harmonics of the input signal to the
fundamental itself. This is expressed as:
( ) THD
=
20 x log
V22 + V32 + V42 + V52
/ V1
where V1 is the fundamental amplitude, and V2–V5 are
the amplitudes of the first five harmonics.
Spurious-Free Dynamic Range
Spurious-free dynamic range (SFDR) is the ratio of the
RMS amplitude of the fundamental (maximum signal
component) to the RMS value of the next-largest distor-
tion component.
Ordering Information (continued)
PART
TEMP RANGE
PIN-PACKAGE
MAX1227BCEE-T
0°C to +70°C
16 QSOP
MAX1227BEEE-T
-40°C to +85°C
16 QSOP
MAX1229ACEP-T*
0°C to +70°C
20 QSOP
MAX1229AEEP-T* -40°C to +85°C
20 QSOP
MAX1229BCEP-T
0°C to +70°C
20 QSOP
MAX1229BEEP-T
-40°C to +85°C
20 QSOP
MAX1231ACEG-T*
0°C to +70°C
24 QSOP
MAX1231AEEG-T* -40°C to +85°C
24 QSOP
MAX1231BCEG-T
0°C to +70°C
24 QSOP
MAX1231BEEG-T -40°C to +85°C
24 QSOP
MAX1231BCGI-T*
0°C to +70°C
28 QFN-EP**
MAX1231BEGI-T* -40°C to +85°C
28 QFN-EP**
*Future product—contact factory for availability.
**EP = Exposed paddle (connect to GND).
Chip Information
TRANSISTOR COUNT: 30,889
PROCESS: BiCMOS
Pin Configurations (continued)
TOP VIEW
AIN0 1
AIN1 2
AIN2 3
AIN3 4
AIN4 5
AIN5 6
AIN6 7
AIN7 8
AIN8 9
AIN9 10
AIN10 11
AIN11 12
MAX1231
QSOP
24 EOC
23 DOUT
22 DIN
21 CS
20 SCLK
19 VDD
18 GND
17 REF+
16 CNVST/AIN15
15 REF-/AIN14
14 AIN13
13 AIN12
N.C. 1
AIN3 2
AIN4 3
AIN5 4
AIN6 5
AIN7 6
AIN8 7
MAX1231
21 CS
20 SCLK
19 N.C.
18 VDD
17 N.C.
16 GND
15 REF+
QFN
______________________________________________________________________________________ 21
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