Linear Technology LTC2377-18 with LTC6655-5/LT6350: 18-Bit, 500ksps, SAR ADC with 102dB SNR. Req DC718 or DC590 DC1783A- DC1783A-G Ficha De Dados
Códigos do produto
DC1783A-G
LTC2377-18
3
237718f
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
97.5
94.1
102
100
100
97
dB
dB
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
93.5
97.1
93.5
102
100
100
97
dB
dB
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
–124
–126
–123
–126
–123
–106
–103
–105
–103
–105
dB
dB
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
–124
–126
–123
–126
–123
–104
–100
–104
–100
–104
dB
dB
dB
dB
dB
SFDR
Spurious Free Dynamic Range
f
IN
= 2kHz, V
REF
= 5V
l
105
125
dB
–3dB Input Bandwidth
34
MHz
Aperture Delay
500
ps
Aperture Jitter
4
ps
Transient Response
Full-Scale Step
1.460
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
Hold Mode
45
5
pF
pF
pF
CMRR
Input Common Mode Rejection Ratio
f
IN
= 250kHz
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)