MAX1031 Maxim Integrated Products, MAX1031 Datasheet - Page 21

• Manufacturer Part Number: MAX1031
• Description: (MAX1027 - MAX1031) 10-Bit 300ksps ADCs
• Manufacturer: Maxim Integrated Products

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Effective number of bits (ENOB) indicates the global
accuracy of an ADC at a specific input frequency and
sampling rate. An ideal ADC error consists of quantiza-
tion noise only. With an input range equal to the full-
scale range of the ADC, calculate the effective number
of bits as follows:
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:
where V1 is the fundamental amplitude, and V2–V5 are
the amplitudes of the first five harmonics.
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.
TOP VIEW
THD
=
20 x log
ENOB = (SINAD - 1.76) / 6.02
AIN10
AIN11
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
Spurious-Free Dynamic Range
______________________________________________________________________________________
10
11
12
⎛
⎜
⎝
1
2
3
4
5
6
7
8
9
Total Harmonic Distortion
(
V
Effective Number of Bits
2
MAX1031
2
QSOP
+
V
3
2
+
24
23
22
21
20
19
18
17
16
15
14
13
V
Temp Sensor, Internal Reference
4
2
EOC
DOUT
DIN
CS
SCLK
V
GND
REF+
CNVST/AIN15
REF-/AIN14
AIN13
AIN12
10-Bit 300ksps ADCs with FIFO,
DD
+
V
5
2
)
/ V
1
⎞
⎟
⎠
*EP = Exposed paddle (connect to GND).
TRANSISTOR COUNT: 30,889
PROCESS: BiCMOS
MAX1027BCEE-T
MAX1027BEEE-T
MAX1029ACEP-T
MAX1029AEEP-T
MAX1029BCEP-T
MAX1029BEEP-T
MAX1031ACEG-T
MAX1031AEEG-T
MAX1031BCEG-T
MAX1031BEEG-T
MAX1031BCTI-T
MAX1031BETI-T
Ordering Information (continued)
DOUT
AIN0
AIN1
AIN2
EOC
N.C.
PART
DIN
Pin Configurations (continued)
22
23
24
25
26
27
28
21
1
20
2
-40°C to +85°C 16 QSOP
-40°C to +85°C 20 QSOP
-40°C to +85°C 20 QSOP
-40°C to +85°C 24 QSOP
-40°C to +85°C 24 QSOP
-40°C to +85°C 28 QFN-EP*
19
3
0°C to +70°C 16 QSOP
0°C to +70°C 20 QSOP
0°C to +70°C 20 QSOP
0°C to +70°C 24 QSOP
0°C to +70°C 24 QSOP
0°C to +70°C 28 QFN-EP*
MAX1031
RANGE
TQFN
TEMP
18
4
17
5
Chip Information
16
6
PIN-
PACKAGE
15
7
14 CNVST/AIN15
13 REF-/AIN14
12
11
10
9
8
AIN13
AIN12
AIN11
AIN10
AIN9
T2855-6
T2855-6
CODE
E16-1
E16-1
E20-1
E20-1
E20-1
E20-1
E24-1
E24-1
E24-1
E24-1
PKG
21