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)： 4/18頁
文件大小： 603K
代理商： MAX1449EHJ
Note 1:
SNR, SINAD, THD, SFDR and HD3 are based on an analog input voltage of -0.5dB FS referenced to a +1.024V full-scale
input voltage range.
Note 2:
Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is
6dB better if referenced to the two-tone envelope.
Note 3:
Digital outputs settle to V
IH
,V
IL
.
Note 4:
With REFIN driven externally, REFP, COM, and REFN are left floating while powered down.
M
10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
V
HYST
I
IH
I
IL
C
IN
CONDITIONS
MIN
TYP
0.1
MAX
UNITS
V
μ
A
Input Hysteresis
V
IH
= V
DD
= OV
DD
V
IL
= 0
±
5
±
5
Input Leakage
Input Capacitance
DIGITAL OUTPUTS (D9–D0)
Output Voltage Low
5
pF
V
OL
I
SINK
= 200
μ
A
0.2
V
Output Voltage High
V
OH
I
SOURCE
= 200
μ
A
OV
DD
- 0.2
V
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
Analog Supply Voltage
Output Supply Voltage
I
LEAK
C
OUT
OE
= OV
DD
OE
= OV
DD
±
10
μ
A
pF
5
V
DD
OV
DD
2.7
1.7
3.3
3.3
58
4
3.6
3.6
74
15
V
V
Operating, f
IN
= 20MHz at -0.5dB FS
Shutdown, clock idle, PD =
OE
= OV
DD
Operating, C
L
= 15pF , f
IN
= 20MHz at
-0.5dB FS
mA
μ
A
Analog Supply Current
I
VDD
10
mA
Output Supply Current
I
OVDD
Shutdown, clock idle, PD =
OE
= OV
DD
Offset
Gain
1
10
μ
A
mV/V
%/V
±
0.1
±
0.1
Power Supply Rejection
PSRR
TIMING CHARACTERISTICS
CLK Rise-to-Output Data Valid
OE
Fall-to-Output Enable
OE
Rise-to-Output Disable
t
DO
Figure 6 (Note 3)
Figure 5
Figure 5
5
10
15
8
ns
ns
ns
t
ENABLE
t
DISABLE
CLK Pulse Width High
t
CH
Figure 6, clock period 9.52ns
4.76
±0.47
ns
CLK Pulse Width Low
t
CL
Figure 6, clock period 9.52ns
4.76
±0.47
ns
Wake-Up Time
t
WAKE
(Note 4)
1.5
μ
s
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.3V, OV
DD
= +2.0V; 0.1μF and 1.0μF capacitors from REFP, REFN, and COM to GND; V
REFIN
= +2.048V, REFOUT
connected to REFIN through a 10k
resistor, V
IN
= 2Vp-p (differential with respect to COM), C
L
≈
10pF at digital outputs,
f
CLK
= 105MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A =
+25
°
C.)
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