參數(shù)資料
型號(hào): AD9048SE
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: Monolithic 8-Bit Video A/D Converter
中文描述: 1-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CQCC28
封裝: CERAMIC, LCC-28
文件頁(yè)數(shù): 3/8頁(yè)
文件大?。?/td> 109K
代理商: AD9048SE
Test
Level
AD9048JJ/JQ
Min
Typ
AD9048KJ/KQ
Min
Typ Max
AD9048SE/SQ
Min
Typ Max
AD9048TE/TQ
Min Typ Max
Parameter (Conditions)
Temp
Max
Units
AC LINEARITY
In-Band Harmonics
dc to 2.438 MHz
15
dc to 9.35 MHz
16
Signal-to-Noise Ratio (SNR)
15
1.248 MHz Input Frequency
17
2.438 MHz Input Frequency
17
1.248 MHz Input Frequency
18
2.438 MHz Input Frequency
18
Signal-to-Noise Ratio (SNR)
1.248 MHz Input Frequency
17
9.35 MHz Input Frequency
17
Noise Power Ratio (NPR)
Differential Phase
Differential Gain
20
+25
°
C
+25
°
C
I
V
47
50
48
49
55
48
47
50
48
49
55
48
dBc
dBc
+25
°
C
+25
°
C
+25
°
C
+25
°
C
I
I
I
I
43.5
43
52.5
52
44
44
53
53
45
44
54
53
46
46
55
55
43.5
43
52.5
52
44
44
53
53
45
44
54
53
46
46
55
55
dB
dB
dB
dB
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
I
V
IV
IV
IV
43.5
44
40.5
39
45
46
40.5
39
43.5
44
40.5
39
45
46
40.5
dB
dB
dB
Degree
%
36.5
36.5
36.5
36.5 39
1
2
1
2
1
2
1
2
DIGITAL OUTPUTS
Logic “1” Voltage
Logic “0” Voltage
Short Circuit Current
5
Full
Full
Full
VI
VI
VI
2.4
2.4
2.4
2.4
V
V
mA
0.5
30
0.5
30
0.5
30
0.5
30
POWER SUPPLY
Positive Supply Current
+25
°
C
Full
+25
°
C
Full
+25
°
C
+25
°
C
I
VI
I
VI
V
V
34
56
58
110
120
34
56
58
110
120
34
56
58
110
120
34
56
58
110
120
mA
mA
mA
mA
mW
mW
Negative Supply Current
90
90
90
90
Nominal Power Dissipation
Reference Ladder Dissipation
550
45
550
45
550
45
550
45
NOTES
1
Maximum ratings are limiting values to be applied individually, and beyond which
the serviceability of the device may be impaired. Functional operation under any of
these conditions is not necessarily implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect device reliability.
2
Applied voltage must be current-limited to specified range.
3
Forcing voltage must be limited to specified range.
4
Current is specified as negative when flowing into the device.
5
Output High; one pin to ground; one second duration.
6
Typical thermal impedances (no air flow) are as follows:
Ceramic DIP:
θ
JA
= 49
°
C/W;
θ
JC
= 15
°
C/W LCC:
θ
JA
= 69
°
C/W;
θ
JC
= 21
°
C/W
JLCC:
θ
= 59
°
C/W;
θ
= 19
°
C/W
To calculate junction temperature (T
J
), use power dissipation (PD) and thermal
impedance: T
= PD (
θ
) + T
= PD (
θ
) = + T
7
Measured with V
= 0 V and CONVERT low (sampling mode).
8
Determined by beat frequency testing for no missing codes.
9
V
RT
V
RB
under all circumstances.
10
Outputs terminated with 40 pF and eight 10
pull-up resistors.
11
Interval from 50% point of leading edge CONVERT pulse to change in output
data.
12
For full-scale step input, 8-bit accuracy attained in specified time.
13
Recovers to 8-bit accuracy in specified time after –3 V input overvoltage.
14
Output time skew includes high-to-low and low-to-high transitions as well as
bit-to-bit time skew differences.
15
Measured at 20 MHz encode rate with analog input 1 dB below full scale.
16
Measured at 35 MHz encode rate with analog input 1 dB below full scale.
17
RMS signal to rms noise.
18
Peak signal to rms noise.
19
DC to 8 MHz noise bandwidth with 1.248 MHz slot; four sigma loading;
20 MHz encode.
20
Clock frequency = 4
×
NTSC = 14.32 MHz. Measured with 40-IRE
modulated ramp.
Specifications subject to change without notice.
EXPLANATION OF TEST LEVELS
Test Level V
Test Level VI – All devices are 100% production tested at
+25
°
C. 100% production tested at tempera-
ture extremes for military temperature de-
vices; sample tested at temperature extremes
for commercial/industrial devices.
– Parameter is a typical value only.
Test Level I
Test Level II
– 100% production tested.
– 100% production tested at +25
°
C and
sample tested at specific temperatures.
Test Level III – Sample tested only.
Test Level IV – Parameter is guaranteed by design and
characterization testing.
AD9048
–3–
REV. C
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