MAX1027 Datasheet, PDF (21/23 Pages) Maxim Integrated Products – 10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference

10-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
Effective Number of Bits
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:
ENOB = (SINAD - 1.76) / 6.02
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.
Ordering Information (continued)
PART
TEMP
RANGE
PIN-
PACKAGE
MAX1027BCEE-T 0°C to +70°C 16 QSOP
MAX1027BEEE-T -40°C to +85°C 16 QSOP
MAX1029ACEP-T 0°C to +70°C 20 QSOP
MAX1029AEEP-T -40°C to +85°C 20 QSOP
MAX1029BCEP-T 0°C to +70°C 20 QSOP
MAX1029BEEP-T -40°C to +85°C 20 QSOP
MAX1031ACEG-T 0°C to +70°C 24 QSOP
MAX1031AEEG-T -40°C to +85°C 24 QSOP
MAX1031BCEG-T 0°C to +70°C 24 QSOP
MAX1031BEEG-T -40°C to +85°C 24 QSOP
MAX1031BCTI-T 0°C to +70°C 28 QFN-EP*
MAX1031BETI-T -40°C to +85°C 28 QFN-EP*
*EP = Exposed paddle (connect to GND).
PKG
CODE
E16-1
E16-1
E20-1
E20-1
E20-1
E20-1
E24-1
E24-1
E24-1
E24-1
T2855-6
T2855-6
Chip Information
TRANSISTOR COUNT: 30,889
PROCESS: BiCMOS
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
MAX1031
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
Pin Configurations (continued)
21 20 19 18 17 16 15
DIN 22
DOUT 23
EOC 24
N.C. 25
AIN0 26
AIN1 27
AIN2 28
MAX1031
14 CNVST/AIN15
13 REF-/AIN14
12 AIN13
11 AIN12
10 AIN11
9 AIN10
8 AIN9
1 234567
TQFN
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