Datasheet

LTC2376-18
3
237618f
DYNAMIC ACCURACY
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio f
IN
= 2kHz, V
REF
= 5V
l
98.5 102 dB
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
l
98 102 dB
SNR Signal-to-Noise Ratio f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 5V, REF/DGC = GND
f
IN
= 2kHz, V
REF
= 2.5V
l
l
l
99.3
97.5
94.1
102
100
97
dB
dB
dB
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
f
IN
= 2kHz, V
REF
= 5V, REF/DGC = GND, (H-Grade)
f
IN
= 2kHz, V
REF
= 2.5V, (H-Grade)
l
l
l
98.8
97.1
93.6
102
100
97
dB
dB
dB
THD Total Harmonic Distortion f
IN
= 2kHz, V
REF
= 5V
f
IN
= 2kHz, V
REF
= 5V, REF/DGC = GND
f
IN
= 2kHz, V
REF
= 2.5V
l
l
l
–126
–127
–124
–106
–103
–106
dB
dB
dB
f
IN
= 2kHz, V
REF
= 5V, (H-Grade)
f
IN
= 2kHz, V
REF
= 5V, REF/DGC = GND, (H-Grade)
f
IN
= 2kHz, V
REF
= 2.5V, (H-Grade)
l
l
l
–126
–127
–124
–104
–100
–104
dB
dB
dB
SFDR Spurious Free Dynamic Range f
IN
= 2kHz, V
REF
= 5V
l
105 127 dB
–3dB Input Bandwidth 34 MHz
Aperture Delay 500 ps
Aperture Jitter 4ps
Transient Response Full-Scale Step 3.460 µs
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
–0.05 V
REF
+ 0.05 V
V
IN
– Absolute Input Range (IN
–
) (Note 5)
l
–0.05 V
REF
+ 0.05 V
V
IN
+ – V
IN
– Input Differential Voltage Range V
IN
= V
IN
+ – V
IN
–
l
–V
REF
+V
REF
V
V
CM
Common-Mode Input Range
l
V
REF
/2–
0.1
V
REF
/2 V
REF
/2+
0.1
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
= 125kHz 86 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 0.7 LSB
RMS
INL Integral Linearity Error (Note 6)
l
–1.75 ±0.5 1.75 LSB
DNL Differential Linearity Error
l
–0.5 ±0.1 0.5 LSB
BZE Bipolar Zero-Scale Error (Note 7)
l
–8 0 8 LSB
Bipolar Zero-Scale Error Drift 3 mLSB/°C
FSE Bipolar Full-Scale Error (Note 7)
l
–40 ±7 40 LSB
Bipolar Full-Scale Error Drift ±0.05 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)