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LTC1668CG PDF预览

LTC1668CG

更新时间: 2024-01-04 12:30:02
品牌 Logo 应用领域
凌特 - Linear 转换器光电二极管信息通信管理
页数 文件大小 规格书
16页 731K
描述
16-Bit, 50Msps DAC

LTC1668CG 数据手册

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LTC1668  
ELECTRICAL CHARACTERISTICS  
The denotes specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C. VDD = 5V, VSS = 5V, LADCOM = AGND = DGND = 0V, IOUTFS = 10mA.  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Reference Input  
Reference Small-Signal Bandwidth  
I
= 10mA, C  
= 0.1µF  
COMP1  
20  
kHz  
FS  
Power Supply  
V
V
Positive Supply Voltage  
Negative Supply Voltage  
Positive Supply Current  
Negative Supply Current  
Power Dissipation  
4.75  
5
–5  
3
5.25  
5.25  
5
V
V
DD  
SS  
4.75  
I
I
I
I
= 10mA, f  
= 10mA, f  
= 10mA, f  
= 25Msps, f  
= 25Msps, f  
= 25Msps, f  
= 1MHz  
= 1MHz  
= 1MHz  
mA  
mA  
DD  
SS  
FS  
FS  
CLK  
CLK  
CLK  
OUT  
OUT  
OUT  
33  
40  
P
I
I
180  
85  
mW  
mW  
DIS  
FS  
FS  
= 1mA, f  
= 25Msps, f  
= 1MHz  
CLK  
OUT  
Dynamic Performance (Differential Transformer Coupled Output, 50Double Terminated, Unless Otherwise Noted)  
f
t
t
Maximum Update Rate  
Output Settling Time  
Output Propagation Delay  
Glitch Impulse  
50  
75  
30  
8
Msps  
ns  
CLOCK  
S
To 0.1% FSR  
ns  
PD  
Single Ended  
Differential  
15  
5
pV-s  
pV-s  
t
t
Output Rise Time  
Output Fall Time  
Output Noise  
4
4
ns  
ns  
r
f
i
I
I
= 10mA  
= 1mA  
50  
30  
pA/Hz  
pA/Hz  
NO  
FS  
FS  
AC Linearity  
SFDR  
Spurious Free Dynamic Range  
to Nyquist  
f
= 25Msps, f  
= 1MHz  
CLK  
OUT  
0dB FS Output  
78  
87  
87  
86  
80  
dB  
dB  
dB  
dB  
6dB FS Output  
–12dB FS Output  
–18dB FS Output  
f
f
f
f
= 50Msps, f  
= 50Msps, f  
= 50Msps, f  
= 50Msps, f  
= 1MHz  
84  
80  
77  
65  
dB  
dB  
dB  
dB  
CLK  
CLK  
CLK  
CLK  
OUT  
OUT  
OUT  
OUT  
= 2.5MHz  
= 5MHz  
= 20MHz  
Spurious Free Dynamic Range  
Within a Window  
f
f
= 25Msps, f  
= 50Msps, f  
= 1MHz, 2MHz Span  
= 5MHz, 4MHz Span  
86  
96  
88  
dB  
dB  
CLK  
CLK  
OUT  
OUT  
THD  
Total Harmonic Distortion  
f
f
= 25Msps, f  
= 50Msps, f  
= 1MHz  
= 5MHz  
–84  
–76  
–77  
dB  
dB  
CLK  
CLK  
OUT  
OUT  
Digital Inputs  
V
V
Digital High Input Voltage  
Digital Low Input Voltage  
Digital Input Current  
Digital Input Capacitance  
Input Setup Time  
2.4  
V
V
IH  
IL  
0.8  
I
±10  
µA  
pF  
ns  
ns  
ns  
ns  
IN  
C
5
IN  
t
t
t
t
8
4
5
8
DS  
Input Hold Time  
DH  
Clock High Time  
CLKH  
CLKL  
Clock Low Time  
Note 1: Absolute Maximum Ratings are those values beyond which the life  
of the device may be impaired.  
3

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