參數(shù)資料
型號： ADC122S101
廠商： National Semiconductor Corporation
英文描述： 2 Channel, 1 MSPS 12-Bit A/D Converter
中文描述： 2通道，1 MSPS的12位A / D轉(zhuǎn)換器
文件頁數(shù)： 3/19頁
文件大小： 941K
代理商： ADC122S101
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Analog Supply Voltage V
A
Voltage on Any Pin to GND
Input Current at Any Pin (Note 3)
Package Input Current (Note 3)
Power Consumption at T
A
= 25C
ESD Susceptibility (Note 5)
Human Body Model
Machine Model
Junction Temperature
Storage Temperature
0.3V to 6.5V
0.3V to V
A
+0.3V
±
10 mA
±
20 mA
See (Note 4)
2500V
250V
+150C
65C to +150C
Operating Ratings
(Notes 1, 2)
Operating Temperature Range
V
A
Supply Voltage
Digital Input Pins Voltage Range
Clock Frequency
Analog Input Voltage
40C
≤
T
A
≤
+85C
+2.7V to +5.25V
0.3V to V
A
0.8 MHz to 16 MHz
0V to V
A
Package Thermal Resistance
Package
8-lead MSOP
θ
JA
250C / W
Soldering process must comply with National Semiconduc-
tor’s Reflow Temperature Profile specifications. Refer to
www.national.com/packaging.
(Note 6)
ADC122S101 Converter Electrical Characteristics
(Note 9)
The following specifications apply for V
A
= +2.7 V to 5.25 V, GND = 0V, f
SCLK
= 8 MHz to 16 MHz, f
SAMPLE
= 500 kSPS to 1
MSPS, C
L
= 35 pF unless otherwise noted.
Boldface limits apply for T
A
MIN
to T
MAX
: all other limits T
A
= 25C.
Symbol
Parameter
Conditions
Typical
Limits
(Note 7)
Units
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes
12
+1.6
1.2
+1.6
1.0
±
1.3
Bits
INL
Integral Non-Linearity
+0.64
0.64
+0.9
0.6
+0.44
LSB (max)
LSB (min)
LSB (max)
LSB (min)
LSB (max)
DNL
Differential Non-Linearity
V
OFF
Offset Error
Channel to Channel Offset Error
Match
Full-Scale Error
Channel to Channel Full-Scale Error
Match
DYNAMIC CONVERTER CHARACTERISTICS
OEM
±
0.1
±
1.0
LSB (max)
FSE
0.34
±
1.5
LSB (max)
FSEM
±
0.1
±
1.0
LSB (max)
SINAD
Signal-to-Noise Plus Distortion Ratio
V
A
= +2.7 to 5.25V,
f
IN
= 40.3 kHz, 0.02 dBFS
V
A
= +2.7 to 5.25V
f
IN
= 40.3 kHz, 0.02 dBFS
V
A
= +2.7 to 5.25V,
f
IN
= 40.3 kHz, 0.02 dBFS
V
A
= +2.7 to 5.25V
f
IN
= 40.3 kHz, 0.02 dBFS
V
A
= +2.7 to 5.25V
V
A
= +5.25V
f
IN
= 40.3 kHz
V
A
= +5.25V,
f
a
= 40.161 kHz, f
b
= 41.015 kHz
V
A
= +5.25V
f
a
= 40.161 kHz, f
b
= 41.015 kHz
V
A
= +5V
V
A
= +3V
72
69.2
dB (min)
SNR
Signal-to-Noise Ratio
72.4
70.6
dB (min)
THD
Total Harmonic Distortion
82
75
dB (max)
SFDR
Spurious-Free Dynamic Range
83
76
dB (min)
ENOB
Effective Number of Bits
11.7
11.2
Bits (min)
Channel-to-Channel Crosstalk
86
dB
IMD
Intermodulation Distortion, Second
Order Terms
Intermodulation Distortion, Third
Order Terms
87
dB
88
dB
FPBW
-3 dB Full Power Bandwidth
11
8
MHz
MHz
A
www.national.com
3
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