MAX1228BCEP+ Maxim Integrated Products, MAX1228BCEP+ Datasheet - Page 21

• Manufacturer Part Number: MAX1228BCEP+
• Description: IC ADC 12-BIT 300KSPS 20-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1228BCEP+

• Number Of Bits: 12
• Sampling Rate (per Second): 300k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 727mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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:
TOP VIEW
THD
=
20 x log
AIN10
AIN11
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
______________________________________________________________________________________
⎛
⎜
⎝
10
11
12
1
2
3
4
5
6
7
8
9
Total Harmonic Distortion
(
V
+
2
2
MAX1230
QSOP
+
V
3
2
+
V
Temp Sensor, Internal Reference
24
23
22
21
20
19
18
17
16
15
14
13
4
2
12-Bit 300ksps ADCs with FIFO,
EOC
DOUT
DIN
CS
SCLK
V
GND
REF+
CNVST/AIN15
REF-/AIN14
AIN13
AIN12
DD
+
V
5
2
)
/ V
1
⎞
⎟
⎠
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.
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
N.C.
Pin Configurations (continued)
1
2
3
4
5
6
7
+
Spurious-Free Dynamic Range
MAX1230
TQFN
EP
21
20
19
18
17
16
15
CS
SCLK
N.C.
V
N.C.
GND
REF+
DD
21