Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
GND 13
GND 14
GND 15
V
CC
16
V
EE
17
GND 18
REFIN 19
GND 20
REFBUF 21
PD 22
LVDS/CMOS 23
CNV 24
235318f
2
For more information
www.linear.com/LTC2353-18
LTC2353-18
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 6)
SYMBOL
V
IN
+
V
IN
–
PARAMETER
Absolute Input Range
(IN0
+
, IN1
+
)
Absolute Input Range
(IN0
–
, IN1
–
)
CONDITIONS
(Note 7)
(Note 7)
SoftSpan 7: ±2.5 • V
REFBUF
Range (Note 7)
SoftSpan 6: ±2.5 • V
REFBUF
/1.024 Range (Note 7)
SoftSpan 5: 0V to 2.5 • V
REFBUF
Range (Note 7)
SoftSpan 4: 0V to 2.5 • V
REFBUF
/1.024 Range (Note 7)
SoftSpan 3: ±1.25 • V
REFBUF
Range (Note 7)
SoftSpan 2: ±1.25 • V
REFBUF
/1.024 Range (Note 7)
SoftSpan 1: 0V to 1.25 • V
REFBUF
Range (Note 7)
(Note 7)
(Note 8)
V
IN
+ > V
CC
, V
IN
– > V
CC
(Note 8)
V
IN
+ < V
EE
, V
IN
– < V
EE
(Note 8)
C-Grade and I-Grade
H-Grade
V
IN
+ = V
IN
–
V
IN
+ = V
IN
–, C-Grade and I-Grade
V
IN
+ = V
IN
–, H-Grade
For Each Pin
V
IN
+ = V
IN
− = 18V
P-P
200Hz Sine
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
V
EE
+ 4
V
EE
+ 4
TYP
MAX
V
CC
– 4
V
CC
– 4
2.5 • V
REFBUF
2.5 • V
REFBUF
/1.024
2.5 • V
REFBUF
2.5 • V
REFBUF
/1.024
1.25 • V
REFBUF
1.25 • V
REFBUF
/1.024
1.25 • V
REFBUF
V
CC
– 4
(V
CC
− V
EE
)
10
UNITS
V
V
V
V
V
V
V
V
V
V
V
mA
mA
pA
pA
nA
pA
pA
nA
GΩ
pF
dB
V
V
IN
+ – V
IN
– Input Differential Voltage
Range
l
–2.5 • V
REFBUF
l
–2.5 • V
REFBUF
/1.024
l
0
l
0
l
–1.25 • V
REFBUF
l
–1.25 • V
REFBUF
/1.024
l
0
l
l
l
l
l
l
l
l
V
CM
Input Common Mode
Voltage Range
V
EE
+ 4
−(V
CC
− V
EE
)
0
5
±1
>1000
3
103
1.3
124
V
IN
+ – V
IN
– Input Differential Overdrive
Tolerance
I
OVERDRIVE
I
IN
I
IN
+ – I
IN
–
R
IN
C
IN
CMRR
V
IHCNV
V
ILCNV
I
INCNV
Input Overdrive
Current Tolerance
Analog Input Leakage
Current
Analog Input Leakage
Offset Current
Analog Input Resistance
Analog Input Capacitance
Input Common Mode
Rejection Ratio
CNV High Level Input
Voltage
CNV Low Level Input Voltage
CNV Input Current
500
12
100
1.2
–100
–1.2
0.5
–10
10
V
μA
V
IN
= 0V to V
DD
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 9)
SYMBOL
PARAMETER
Resolution
No Missing Codes
Transition Noise
SoftSpans 7 and 6: ±10.24V and ±10V Ranges
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges
SoftSpans 3 and 2: ±5.12V and ±5V Ranges
SoftSpan 1: 0V to 5.12V Range
SoftSpans 7 and 6: ±10.24V and ±10V Ranges (Note 10)
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges (Note 10)
SoftSpans 3 and 2: ±5.12V and ±5V Ranges (Note 10)
SoftSpan 1: 0V to 5.12V Range (Note 10)
(Note 12)
V
REFBUF
= 4.096V (REFBUF Overdriven) (Note 12)
V
REFBUF
= 4.096V (REFBUF Overdriven) (Note 12)
l
l
l
l
l
l
CONVERTER CHARACTERISTICS
CONDITIONS
MIN
l
l
TYP
MAX
UNITS
Bits
Bits
18
18
1.4
2.8
2.1
4.2
–3.5
–5
–4
–6
−0.9
−700
−0.07
±1
±1.5
±1
±1
±0.3
±50
±4
±0.025
±2.5
3.5
5
4
6
0.9
700
0.07
LSB
RMS
LSB
RMS
LSB
RMS
LSB
RMS
LSB
LSB
LSB
LSB
LSB
μV
μV/°C
%FS
ppm/°C
235318f
INL
Integral Linearity Error
DNL
ZSE
FSE
Differential Linearity Error (Note 11)
Zero-Scale Error
Zero-Scale Error Drift
Full-Scale Error
Full-Scale Error Drift
l
For more information
www.linear.com/LTC2353-18
3
LTC2353-18
DYNAMIC ACCURACY
SYMBOL PARAMETER
SINAD
Signal-to-(Noise +
Distortion) Ratio
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. A
IN
= –1dBFS. (Notes 9, 13)
CONDITIONS
SoftSpans 7 and 6: ±10.24V and ±10V Ranges, f
IN
= 2kHz
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges, f
IN
= 2kHz
SoftSpans 3 and 2: ±5.12V and ±5V Ranges, f
IN
= 2kHz
SoftSpan 1: 0V to 5.12V Range, f
IN
= 2kHz
SoftSpans 7 and 6: ±10.24V and ±10V Ranges, f
IN
= 2kHz
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges, f
IN
= 2kHz
SoftSpans 3 and 2: ±5.12V and ±5V Ranges, f
IN
= 2kHz
SoftSpan 1: 0V to 5.12V Range, f
IN
= 2kHz
SoftSpans 7 and 6: ±10.24V and ±10V Ranges, f
IN
= 2kHz
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges, f
IN
= 2kHz
SoftSpans 3 and 2: ±5.12V and ±5V Ranges, f
IN
= 2kHz
SoftSpan 1: 0V to 5.12V Range, f
IN
= 2kHz
SoftSpans 7 and 6: ±10.24V and ±10V Ranges, f
IN
= 2kHz
SoftSpans 5 and 4: 0V to 10.24V and 0V to 10V Ranges, f
IN
= 2kHz
SoftSpans 3 and 2: ±5.12V and ±5V Ranges, f
IN
= 2kHz
SoftSpan 1: 0V to 5.12V Range, f
IN
= 2kHz
One Channel Converting 18V
P-P
200Hz Sine in ±10.24V Range,
Crosstalk to Other Channel
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
92.6
86.9
89.3
83.6
92.7
87.0
89.5
83.6
TYP
96.2
90.3
92.5
86.6
96.4
90.4
92.5
86.6
–110
–110
–113
–114
MAX
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
SNR
Signal-to-Noise Ratio
THD
Total Harmonic Distortion
–101
–99
–101
–99
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
ns
ps
ps
RMS
ns
SFDR
Spurious Free Dynamic
Range
101
99
101
99
112
111
113
114
−121
6
1
150
3
Channel-to-Channel
Crosstalk
–3dB Input Bandwidth
Aperture Delay
Aperture Delay Matching
Aperture Jitter
Transient Response
Full-Scale Step, 0.005% Settling
420
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 9)
SYMBOL
V
REFIN
PARAMETER
Internal Reference Output Voltage
Internal Reference Temperature Coefficient
Internal Reference Line Regulation
Internal Reference Output Impedance
V
REFIN
REFIN Voltage Range
REFIN Overdriven (Note 7)
(Note 14)
V
DD
= 4.75V to 5.25V
CONDITIONS
INTERNAL REFERENCE CHARACTERISTICS
The
l
denotes the specifications which apply over the full
MIN
2.043
l
TYP
2.048
5
0.1
20
MAX
2.053
20
UNITS
V
ppm/°C
mV/V
kΩ
1.25
2.2
V
The
l
denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 9)
SYMBOL
V
REFBUF
PARAMETER
Reference Buffer Output Voltage
REFBUF Voltage Range
REFBUF Input Impedance
I
REFBUF
REFBUF Load Current
CONDITIONS
REFIN Overdriven, V
REFIN
= 2.048V
REFBUF Overdriven (Notes 7, 15)
V
REFIN
= 0V, Buffer Disabled
V
REFBUF
= 5V, 2 Channels Enabled (Notes 15, 16)
V
REFBUF
= 5V, Acquisition or Nap Mode (Note 15)
l
l
l
REFERENCE BUFFER CHARACTERISTICS
MIN
4.091
2.5
TYP
4.096
13
1.2
0.36
MAX
4.101
5
1.3
UNITS
V
V
kΩ
mA
mA
235318f
4
For more information
www.linear.com/LTC2353-18
LTC2353-18
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 9)
SYMBOL
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
I
SOURCE
I
SINK
V
ID
R
ID
V
ICM
I
ICM
V
OD
V
OCM
I
OZ
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
Output Source Current
Output Sink Current
Differential Input Voltage
On-Chip Input Termination
Resistance
Common-Mode Input Voltage
Common-Mode Input Current
Differential Output Voltage
Common-Mode Output Voltage
Hi-Z Output Leakage Current
V
IN
+ = V
IN
– = 0V to OV
DD
R
L
= 100Ω Differential Termination
R
L
= 100Ω Differential Termination
V
OUT
= 0V to OV
DD
CS
= 0V, V
ICM
= 1.2V
CS
= OV
DD
I
OUT
= –500μA
I
OUT
= 500μA
V
OUT
= 0V to OV
DD
V
OUT
= 0V
V
OUT
= OV
DD
l
l
l
l
l
l
l
l
OV
DD
– 0.2
l
l
DIGITAL INPUTS AND DIGITAL OUTPUTS
CONDITIONS
MIN
l
0.8 • OV
DD
l
TYP
MAX
UNITS
V
CMOS Digital Inputs and Outputs
0.2 • OV
DD
–10
5
0.2
–10
–50
50
200
90
0.3
–10
275
1.1
–10
350
1.2
350
106
10
1.2
600
125
2.2
10
425
1.3
10
10
10
V
μA
pF
V
V
μA
mA
mA
mV
Ω
MΩ
V
μA
mV
V
μA
V
IN
= 0V to OV
DD
l
LVDS Digital Inputs and Outputs
The
l
denotes the specifications which apply over the full operating temperature
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