參數(shù)資料
型號： MAX1449EHJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： Analog-to-Digital Converter， 10-Bit
中文描述： 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP32
封裝： 5 X 5 MM, 1 MM HEIGHT, MS-026, TQFP-32
文件頁數(shù)： 9/18頁
文件大小： 603K
代理商： MAX1449EHJ
M
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
_______________________________________________________________________________________
9
Pin Description
PIN
NAME
FUNCTION
1
REFN
Lower Reference. Conversion range is
±
(V
REFP
- V
REFN
).
Bypass to GND with a > 0.1
μ
F capacitor.
Common-Mode Voltage Output. Bypass to GND with a > 0.1
μ
F capacitor.
Analog Supply Voltage. Bypass to GND with a capacitor combination of 2.2
μ
F in parallel with 0.1
μ
F.
2
COM
V
DD
3, 9, 10
4, 5, 8, 11,
14, 30
GND
Analog Ground
6
7
12
IN+
IN-
CLK
Positive Analog Input. For single-ended operation connect signal source to IN+.
Negative Analog Input. For single-ended operation connect IN- to COM.
Conversion Clock Input
13
PD
Power Down Input.
High: Power-down mode
Low: Normal operation
15
OE
Output Enable Input.
High: Digital outputs disabled
Low: Digital outputs enabled
16
–
20
D9
–
D5
Three-State Digital Outputs D9
–
D5. D9 is the MSB.
21
OV
DD
Output Driver Supply Voltage. Bypass to GND with a capacitor combination of 2.2
μ
F in parallel with
0.1
μ
F.
Test Point.
Do not connect.
Output Driver Ground
22
23
T.P.
OGND
24
–
28
D4
–
D0
Three-State Digital Outputs D4
–
D0. D0 is the LSB.
29
REFOUT
Internal Reference Voltage Output. May be connected to REFIN through a resistor or a resistor-
divider.
31
32
REFIN
REFP
Reference Input. V
REFIN
= 2
(V
REFP
- V
REFN
). Bypass to GND with a > 0.1
μ
F capacitor.
Upper Reference. Conversion range is
±
(V
REFP
- V
REFN
). Bypass to GND with a > 0.1
μ
F capacitor.
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