參數(shù)資料
型號: LTC1668
廠商: Linear Technology Corporation
英文描述: 16-Bit, 50Msps Differential Current OutputDAC(16位,50Msps,差分電流輸出數(shù)模轉(zhuǎn)換器)
中文描述: 16位,50 MSPS的差分電流OutputDAC(16位,50 MSPS的,差分電流輸出數(shù)模轉(zhuǎn)換器)
文件頁數(shù): 3/16頁
文件大?。?/td> 732K
代理商: LTC1668
3
LTC1668
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
DD
= 5V, V
SS
= –5V, LADCOM = AGND = DGND = 0V, I
OUTFS
= 10mA.
SYMBOL
PARAMETER
CONDITIONS
Reference Input
Reference Small-Signal Bandwidth
I
FS
= 10mA, C
COMP1
= 0.1
μ
F
Power Supply
V
DD
Positive Supply Voltage
V
SS
Negative Supply Voltage
I
DD
Positive Supply Current
I
FS
= 10mA, f
CLK
= 25Msps, f
OUT
= 1MHz
I
SS
Negative Supply Current
I
FS
= 10mA, f
CLK
= 25Msps, f
OUT
= 1MHz
P
DIS
Power Dissipation
I
FS
= 10mA, f
CLK
= 25Msps, f
OUT
= 1MHz
I
FS
= 1mA, f
CLK
= 25Msps, f
OUT
= 1MHz
Dynamic Performance (Differential Transformer Coupled Output, 50
Double Terminated, Unless Otherwise Noted)
f
CLOCK
Maximum Update Rate
t
S
Output Settling Time
To 0.1% FSR
t
PD
Output Propagation Delay
Glitch Impulse
Single Ended
Differential
t
r
Output Rise Time
t
f
Output Fall Time
i
NO
Output Noise
I
FS
= 10mA
I
FS
= 1mA
AC Linearity
SFDR
Spurious Free Dynamic Range
f
CLK
= 25Msps, f
OUT
= 1MHz
to Nyquist
0dB FS Output
–6dB FS Output
–12dB FS Output
–18dB FS Output
f
CLK
= 50Msps, f
OUT
= 1MHz
f
CLK
= 50Msps, f
OUT
= 2.5MHz
f
CLK
= 50Msps, f
OUT
= 5MHz
f
CLK
= 50Msps, f
OUT
= 20MHz
Spurious Free Dynamic Range
f
CLK
= 25Msps, f
OUT
= 1MHz, 2MHz Span
Within a Window
f
CLK
= 50Msps, f
OUT
= 5MHz, 4MHz Span
THD
Total Harmonic Distortion
f
CLK
= 25Msps, f
OUT
= 1MHz
f
CLK
= 50Msps, f
OUT
= 5MHz
Digital Inputs
V
IH
Digital High Input Voltage
V
IL
Digital Low Input Voltage
I
IN
Digital Input Current
C
IN
Digital Input Capacitance
t
DS
Input Setup Time
t
DH
Input Hold Time
t
CLKH
Clock High Time
t
CLKL
Clock Low Time
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
ELECTRICAL CHARACTERISTICS
MIN
TYP
MAX
UNITS
20
kHz
G
4.75
–4.75
5
5.25
–5.25
5
40
V
V
G
–5
3
33
180
85
G
mA
mA
mW
mW
G
G
G
G
50
75
30
8
15
5
4
4
50
30
Msps
ns
ns
pV-s
pV-s
ns
ns
pA/
Hz
pA/
Hz
78
87
87
86
80
84
80
77
65
96
88
–84
–76
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
86
–77
G
2.4
V
V
G
0.8
±
10
G
μ
A
pF
ns
ns
ns
ns
5
G
8
4
5
8
G
G
G
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