Datasheet

6
LTC1666/LTC1667/LTC1668
Integral Nonlinearity
DIGITAL INPUT CODE
–5
INTEGRAL NONLINEARITY (LSB)
–4
–2
–1
0
5
2
16384
32768
1666/7/8 G18
–3
3
4
1
49152
65535
TYPICAL PERFOR A CE CHARACTERISTICS
UW
SFDR vs Digital Amplitude (dBFS)
and f
CLOCK
at f
OUT
= f
CLOCK
/11
Single-Ended Outputs
Full-Scale Transition
Differential Output
Full-Scale Transition
Single-Ended Output
Full-Scale Transition
Differential Output
Full-Scale Transition
Differential Midscale
Glitch Impulse
Single-Ended Midscale
Glitch Impulse
DIGITAL AMPLITUDE (dBFS)
100
95
90
85
80
75
70
65
60
55
50
SFDR (dB)
1666/7/8 G10
–20 –15 –10 –5 0
455kHz AT 5MSPS
4.55MHz AT 50MSPS
2.277MHz AT 25MSPS
DIGITAL AMPLITUDE (dBFS)
100
95
90
85
80
75
70
65
60
55
50
SFDR (dB)
1666/7/8 G11
–20 –15 –10 –5 0
1MHz AT 5MSPS
10MHz AT 50MSPS
5MHz AT 25MSPS
100mV
/DIV
CLK IN
5V/DIV
1666/7/8 G12
5ns/DIV
V(I
OUTB
)
V(I
OUTA
)
FFFF
0000
CLOCK INPUT
SFDR vs Digital Amplitude (dBFS)
and f
CLOCK
at f
OUT
= f
CLOCK
/5
100mV
/DIV
CLK IN
5V/DIV
1666/7/8 G13
5ns/DIV
V(I
OUTA
) – V(I
OUTB
)
FFFF
0000
100mV
/DIV
CLK IN
5V/DIV
1666/7/8 G14
5ns/DIV
V(I
OUTA
)
V(I
OUTB
)
FFFF
0000
CLOCK INPUT
100mV
/DIV
CLK IN
5V/DIV
1666/7/8 G15
5ns/DIV
V(I
OUTA
) – V(I
OUTB
)
FFFF
0000
1mV/DIV
CLK IN
5V/DIV
1666/7/8 G16
5ns/DIV
V(I
OUTA
), V(I
OUTB
)
7FFF
8000
1mV/DIV
CLK IN
5V/DIV
1666/7/8 G17
5ns/DIV
V(I
OUTA
) – V(I
OUTB
)
7FFF
8000
(LTC1668)