Datasheet
LTC2205-14
3
220514fb
ANALOG INPUT
DYNAMIC ACCURACY
The ● denotes the specifi cations which apply over the full operating temperature range, otherwise
specifi cations are at T
A
= 25°C. (Note 4)
The ● denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. A
IN
= –1dBFS. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
78.3
76.0
dBFS
dBFS
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (1.5V Range, PGA = 1)
l
76.8
77.2
78.2
78.2
76.0
dBFS
dBFS
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
70MHz Input (1.5V Range, PGA = 1)
l
74.2
74.7
77.7
75.7
dBFS
dBFS
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
76.4
74.9
dBFS
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
75.6
74.2
dBFS
dBFS
SFDR Spurious Free Dynamic Range
2
nd
or 3
rd
Harmonic
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
98
98
dBc
dBc
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (2.25V Range, PGA = 0
15MHz Input (1.5V Range, PGA = 1)
l
85
86
98
98
98
dBc
dBc
dBc
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
70MHz Input (1.5V Range, PGA = 1)
l
82
83
90
92
92
dBc
dBc
dBc
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
88
90
dBc
dBc
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
80
82
dBc
dBc
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (A
IN
+
– A
IN
–
)
3.135V ≤ V
DD
≤ 3.465V
l
1.5 to 2.25 V
P-P
V
IN, CM
Analog Input Common Mode Differential Input (Note 7)
l
1 1.25 1.5 V
I
IN
Analog Input Leakage Current
0V ≤ A
IN
+
, A
IN
–
≤ V
DD
l
–1 1 μA
I
SENSE
SENSE Input Leakage Current 0V ≤ SENSE
≤ V
DD
l
–3 3 μA
I
MODE
MODE Pin Pull-Down Current to GND 10 μA
C
IN
Analog Input Capacitance Sample Mode ENC
+
< ENC
–
Hold Mode ENC
+
> ENC
–
6.5
1.8
pF
pF
t
AP
Sample-and-Hold
Aperature Delay Time
0.7 ns
t
JITTER
Sample-and-Hold
Aperature Delay Time Jitter
90 fs
RMS
CMRR Analog Input
Common Mode Rejection Ratio
1V < (A
IN
+
= A
IN
–
) <1.5V 60 dB
BW-3dB Full Power Bandwidth 700 MHz