Datasheet

LTC2369-18
3
236918fa
DYNAMIC ACCURACY
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio f
IN
= 2kHz, V
REF
= 5V
l
92.2 96.5 dB
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
l
91.7 96.5 dB
SNR Signal-to-Noise Ratio f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 2.5V
l
l
92.6
87
96.5
90.7
dB
dB
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
f
IN
= 2kHz, V
REF
= 2.5V, (H-Grade)
l
l
92
86.4
96.5
90.7
dB
dB
THD Total Harmonic Distortion f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 2.5V
l
l
–120
–107
–103
–103
dB
dB
SFDR Spurious Free Dynamic Range f
IN
= 2kHz, V
REF
= 5V
l
103 122 dB
–3dB Input Bandwidth 34 MHz
Aperture Delay 500 ps
Aperture Jitter 4ps
Transient Response Full-Scale Step 200 ns
The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C and A
IN
= –1dBFS. (Notes 4, 8)
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
+ Absolute Input Range (IN
+
) (Note 5)
l
–0.1 V
REF
+ 0.1 V
V
IN
– Absolute Input Range (IN
–
) (Note 5)
l
–0.1 0.1 V
V
IN
+ – V
IN
– Input Differential Voltage Range V
IN
= V
IN
+ – V
IN
–
l
0V
REF
V
I
IN
Analog Input Leakage Current
l
±1 μA
C
IN
Analog Input Capacitance Sample Mode
Hold Mode
45
5
pF
pF
CMRR Input Common Mode Rejection Ratio f
IN
= 800kHz 80 dB
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONVERTER CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution
l
18 Bits
No Missing Codes
l
18 Bits
Transition Noise 1.3 LSB
RMS
INL Integral Linearity Error (Note 6)
l
–2.5 ±0.5 2.5 LSB
DNL Differential Linearity Error
l
–0.5 ±0.1 0.5 LSB
ZSE Zero-Scale Error (Note 7)
l
–11 0 11 LSB
Zero-Scale Error Drift 0.04 LSB/°C
FSE Full-Scale Error (Note 7)
l
–50 ±5 50 LSB
Full-Scale Error Drift ±0.15 ppm/°C
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)