LTC2311-16
DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C and AIN = –1dBFS (Notes 4, 8).
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
l
l
SINAD
Signal-to-(Noise + Distortion) Ratio f = 2.2MHz, V
= 4.096V, Internal Reference
= 5V, External Reference
76
81
dB
dB
IN
f
REFOUT
REFOUT
= 2.2MHz, V
81.5
IN
SNR
Signal-to-Noise Ratio
f
f
= 2.2MHz, V
= 2.2MHz, V
= 4.096V, Internal Reference
= 5V, External Reference
76.5
78
81.6
82.3
dB
dB
IN
IN
REFOUT
REFOUT
THD
Total Harmonic Distortion
Spurious Free Dynamic Range
f
f
= 2.2MHz, V
= 2.2MHz, V
= 4.096V, Internal Reference
= 5V, External Reference
–90
–88
–79
dB
dB
IN
IN
REFOUT
REFOUT
SFDR
f
f
= 2.2MHz, V
= 2.2MHz, V
= 4.096V, Internal Reference
= 5V, External Reference
95
90
dB
dB
IN
IN
REFOUT
REFOUT
–3dB Input Bandwidth
Aperture Delay
100
500
1
MHz
ps
Aperture Jitter
ps
RMS
Transient Response
Full-Scale Step
3
ns
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C (Note 4).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
V
REFOUT Output Voltage
4.75V < V < 5.25V
4.082
2.042
4.096
2.048
4.110
2.054
V
V
REFOUT
DD
3.13V < V < 3.47V
DD
l
l
REFOUT Input Voltage
4.75V < V < 5.25V, REFIN = 0V (Note 5)
0.5
0.5
V
V
V
V
DD
DD
DD
3.13V < V < 3.47V, REFIN = 0V (Note 5)
DD
l
l
REFOUT Temperature Coefficient
REFOUT Short-Circuit Current
REFOUT Line Regulation
(Note 14)
3
20
ppm/°C
mA
V
V
= 5.25V, Forcing Output to GND
= 4.75V to 5.25V
30
DD
0.3
0.5
60
mV/V
mV/mA
kΩ
DD
REFOUT Load Regulation
I
< 2mA
REFOUT
REFOUT Input Resistance (External Reference REFIN = 0V
Mode)
I
REFOUT Input Current (External Reference
Mode)
REFIN = 0V, REFOUT = 4.096V
(Notes 9, 10)
700
µA
V
REFOUT
l
V
REFIN Output Voltage
3.13V < V < 3.47V
1.245
1.25
1.255
REFIN
DD
4.75V < V < 5.25V
DD
l
l
REFIN Input Voltage
3.13V < V < 3.47V (Note 5)
1
1
1.85
1.45
V
V
DD
4.75V < V < 5.25V (Note 5)
DD
l
REFIN Short-Circuit Current
V
DD
= 5.25V, Forcing Output to GND
250
µA
l
l
V
(V
)
REFIN Low Level Input Voltage (External
Reference Mode)
3.13V < V < 3.47V
0.5
0.5
V
V
IL REFIN
DD
4.75V < V < 5.25V
DD
Rev. B
4
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