Datasheet
LTC2203/LTC2202
3
22032fd
CONVERTER CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No missing codes) 16
Integral Linearity Error Differential Analog Input (Note 5) T
A
= 25°C ±1.2 ±4.0 LSB
Integral Linearity Error Differential Analog Input (Note 5)
l
±1.5 ±4.5 LSB
Differential Linearity Error Differential Analog Input
l
±0.3 ±1 LSB
Offset Error (Note 6)
l
±2 ±10 mV
Offset Drift ±10 μV/°C
Gain Error External Reference
l
±0.2 ±1.5 %FS
Full-Scale Drift Internal Reference
External Reference
±30
±15
ppm/°C
ppm/°C
Transition Noise External Reference (2.5V Range, PGA = 0) 1.92
LSB
RMS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (A
IN
+
– A
IN
–
)
3.135V ≤ V
DD
≤ 3.465V 1.667 or 2.5 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
(Note 9)
l
–1 1 μA
I
SENSE
SENSE Input Leakage Current 0V ≤ SENSE
≤ V
DD
(Note 10)
l
–3 3 μA
I
MODE
MODE Pin Pull-Down Current to GND 10 μA
I
OE
OE Pin Pull-Down Current to GND 10 μA
C
IN
Analog Input Capacitance Sample Mode CLK = 0
Hold Mode CLK = 0
10.5
1.4
pF
pF
t
AP
Sample-and-Hold
Acquisition Delay Time
0.9 ns
t
JITTER
Sample-and-Hold
Acquisition Delay Time Jitter
200 f
SRMS
CMRR Analog Input
Common Mode Rejection Ratio
1V < (A
IN
+
= A
IN
–
) <1.5V 80 dB
BW-3dB Full Power Bandwidth Rs < 20Ω
380 MHz
SYMBOL PARAMETER CONDITIONS MIN
LTC2203
TYP MAX MIN
LTC2202
TYP MAX UNITS
SNR Signal-to-Noise Ratio 1MHz Input (2.25V Range, PGA = 0)
1MHz Input (1.667V Range, PGA = 1)
81.6
79.4
81.6
79.4
dBFS
dBFS
5MHz Input (2.5V Range, PGA = 0)
5MHz Input (1.667V Range, PGA = 1)
l
80 81.6
79.4
80 81.6
79.4
dBFS
dBFS
12.5MHz Input (2.5V Range, PGA = 0)
12.5MHz Input (1.667V Range, PGA = 1)
81.4
79.3
81.4
79.3
dBFS
dBFS
30MHz Input (2.5V Range, PGA = 0)
30MHz Input (1.667V Range, PGA = 1)
l
77.5
80.8
78.9 77.5
80.8
78.9
dBFS
dBFS
70MHz Input (2.5V Range, PGA = 0)
70MHz Input (1.667V Range, PGA =1 )
78.3
77.2
78.3
77.2
dBFS
dBFS
ANALOG INPUT
DYNAMIC ACCURACY
The l 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)
The l denotes the specifi cations which apply over the full operating temperature range, otherwise
specifi cations are at T
A
= 25°C. (Note 4)
The
l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)