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LT6237 Datasheet(PDF) 3 Page - Linear Technology

Part # LT6237
Description  18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR
PDF  50 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT6237 Datasheet(HTML) 3 Page - Linear Technology

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LTC2373-18
3
237318f
For more information www.linear.com/LTC2373-18
elecTrical characTerisTics
converTer characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
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
VIN+
Absolute Input Range (CH0 to CH7)
(Note 5)
l
–0.1
VREFBUF + 0.1
V
VIN–
Absolute Input Range
(CH0 to CH7, COM)
Fully Differential (Note 5)
Pseudo-Differential Unipolar (Note 5)
Pseudo-Differential Bipolar (Note 5)
l
l
l
–0.1
–0.1
VREFBUF/2 – 0.1
0
VREFBUF/2
VREFBUF + 0.1
0.1
VREFBUF/2 + 0.1
V
V
V
VIN+ – VIN– Input Differential Voltage Range
Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
l
l
l
–VREFBUF
0
–VREFBUF/2
VREFBUF
VREFBUF
VREFBUF/2
V
V
V
VCM
Common Mode Input Range
Pseudo-Differential Bipolar and
Fully Differential (Note 6)
l
–VREFBUF/2 – 0.1 VREFBUF/2 VREFBUF/2 + 0.1
V
IIN
Analog Input Leakage Current
l
–1
1
µA
CIN
Analog Input Capacitance
Sample Mode
Hold Mode
75
5
pF
pF
CMRR
Input Common Mode Rejection Ratio Fully Differential, fIN = 500kHz
Pseudo-Differential Unipolar, fIN = 500kHz
Pseudo-Differential Bipolar, fIN = 500kHz
67
66
66
dB
dB
dB
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution
l
18
Bits
No Missing Codes
l
18
Bits
Transition Noise
Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
0.85
1.5
1.5
LSBRMS
LSBRMS
LSBRMS
INL
Integral Linearity Error
Fully Differential (Note 7)
Pseudo-Differential Unipolar (Note 7)
Pseudo-Differential Bipolar (Note 7)
l
l
l
–2
–2.75
–2.75
±0.5
±0.8
±0.8
2
2.75
2.75
LSB
LSB
LSB
DNL
Differential Linearity Error
Fully Differential (Note 6)
Pseudo-Differential Unipolar (Note 6)
Pseudo-Differential Bipolar (Note 6)
l
l
l
–0.9
–0.9
–0.9
±0.25
±0.25
±0.25
0.9
0.9
0.9
LSB
LSB
LSB
ZSE
Zero-Scale Error
Fully Differential (Note 8)
Pseudo-Differential Unipolar (Note 8)
Pseudo-Differential Bipolar (Note 8)
l
l
l
–15
–30
–30
±2
±2
±2
15
30
30
LSB
LSB
LSB
Zero-Scale Error Drift
Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
20
30
30
mLSB/°C
mLSB/°C
mLSB/°C
Zero-Scale Error Match
Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
l
l
l
–18
–24
–28
±2
±4
±4
18
24
28
LSB
LSB
LSB
FSE
Full-Scale Error
Fully Differential
REFBUF = 4.096V (REFBUF Overdriven) (Notes 8, 9)
REFIN = 2.048V (REFIN Overdriven) (Note 8)
Pseudo-Differential Unipolar
REFBUF = 4.096V (REFBUF Overdriven) (Notes 8, 9)
REFIN = 2.048V (REFIN Overdriven) (Note 8)
Pseudo-Differential Bipolar
REFBUF = 4.096V (REFBUF Overdriven) (Notes 8, 9)
REFIN = 2.048V (REFIN Overdriven) (Note 8)
l
l
l
l
l
l
–50
–100
–75
–200
–50
–120
±7
±11
±5
±14
±8
±12
50
100
75
200
50
120
LSB
LSB
LSB
LSB
LSB
LSB



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