MAX1227_12 Datasheet, PDF (21/22 Pages) Maxim Integrated Products – 12-Bit 300ksps ADCs with FIFO,Temp Sensor, Internal Reference

12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Pin Configurations (continued)
TOP VIEW
+
AIN0 1
AIN1 2
AIN2 3
AIN3 4
AIN4 5
MAX1231
AIN5 6
AIN6 7
AIN7 8
AIN8 9
AIN9 10
AIN10 11
AIN11 12
QSOP
24 EOC
23 DOUT
22 DIN
21 CS
20 SCLK
19 V_DD
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 V_DD
17 N.C.
16 GND
15 REF+
TQFN
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
⎞
⎠
⎤
/ V_{1⎦⎥⎥}
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.
PROCESS: BiCMOS
Chip Information
Ordering Information (continued)
PART
TEMP RANGE
PIN-PACKAGE
MAX1231BCEG+
0°C to +70°C
24 QSOP
MAX1231BEEG+
-40°C to +85°C
24 QSOP
MAX1231BCTI+
0°C to +70°C
28 TQFN-EP*
MAX1231BETI+
-40°C to +85°C
28 TQFN-EP*
*EP = Exposed pad. (Connect to GND.)
+Denotes a lead(Pb)-free/RoHS-compliant package.
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE OUTLINE
LAND
CODE
NO.
PATTERN NO.
16 QSOP
20 QSOP
24 QSOP
28 TQFN-EP
E16+1
E20+1
E24+1
T2855+6
21-0055
21-0055
21-0055
21-0140
90-0167
90-0168
90-0172
90-0026
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