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LTC1992 数据表(PDF) 3 Page - Linear Technology

部件名 LTC1992
功能描述  18-Bit, 1.6Msps, Pseudo-Differential Unipolar SAR
PDF  24 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1992 数据表(HTML) 3 Page - Linear Technology

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LTC2369-18
3
236918fa
DYNAMIC ACCURACY
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SINAD
Signal-to-(Noise + Distortion) Ratio
fIN = 2kHz, VREF = 5V
l
92.2
96.5
dB
fIN = 2kHz, VREF = 5V, (H-Grade)
l
91.7
96.5
dB
SNR
Signal-to-Noise Ratio
fIN = 2kHz, VREF = 5V
fIN = 2kHz, VREF = 2.5V
l
l
92.6
87
96.5
90.7
dB
dB
fIN = 2kHz, VREF = 5V, (H-Grade)
fIN = 2kHz, VREF = 2.5V, (H-Grade)
l
l
92
86.4
96.5
90.7
dB
dB
THD
Total Harmonic Distortion
fIN = 2kHz, VREF = 5V
fIN = 2kHz, VREF = 2.5V
l
l
–120
–107
–103
–103
dB
dB
SFDR
Spurious Free Dynamic Range
fIN = 2kHz, VREF = 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 TA = 25°C and AIN = –1dBFS. (Notes 4, 8)
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN+
Absolute Input Range (IN+)
(Note 5)
l
–0.1
VREF + 0.1
V
VIN–
Absolute Input Range (IN–)
(Note 5)
l
–0.1
0.1
V
VIN+ – VIN– Input Differential Voltage Range
VIN = VIN+ – VIN–
l
0VREF
V
IIN
Analog Input Leakage Current
l
±1
μA
CIN
Analog Input Capacitance
Sample Mode
Hold Mode
45
5
pF
pF
CMRR
Input Common Mode Rejection Ratio
fIN = 800kHz
80
dB
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 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
LSBRMS
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 TA = 25°C. (Note 4)



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