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LTC2668 Datasheet(PDF) 12 Page - Linear Technology

Part # LTC2668
Description  Octal, 16-Bit, 200ksps Differential 짹10.24V Input SoftSpan ADC with Wide Input Common Mode Range
PDF  40 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2668 Datasheet(HTML) 12 Page - Linear Technology

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LTC2348-16
12
234816fa
For more information www.linear.com/LTC2348-16
Typical perForMance characTerisTics
Internal Reference Output
vs Temperature
Supply Current vs Sampling Rate
Step Response
(Large-Signal Settling)
Power Dissipation vs Sampling
Rate, N-Channels Enabled
Step Response
(Fine Settling)
Supply Current vs Temperature
Power-Down Current
vs Temperature
PSRR vs Frequency
Offset Error
vs Input Common Mode
IOVDD
IVDD
IVEE
IVCC
TEMPERATURE (°C)
–55 –35 –15 5
25 45 65 85 105 125
–4
–2
0
2
4
6
8
10
12
14
16
18
20
Supply Current vs Temperature
234816 G28
IOVDD
IVDD
–IVEE
IVCC
TEMPERATURE (°C)
–55 –35 –15 5
25 45 65 85 105 125
0.01
0.1
1
10
100
1000
vs Temperature
Power-Down Current
234816 G29
TA = 25°C, VCC = +15V, VEE = –15V, VDD = 5V,
OVDD = 2.5V, Internal Reference and Buffer (VREFBUF  = 4.096V), fSMPL = 200ksps, unless otherwise noted.
VCC
OVDD
VEE
VDD
IN+ = IN– = 0V
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
50
60
70
80
90
100
110
120
130
140
150
234816 G30
WITH NAP MODE
tCNVL = 420ns
N = 8
N = 1
N = 2
N = 4
SAMPLING FREQUENCY (kHz)
0
200
400
600
800
1000
0
20
40
60
80
100
120
140
160
180
234816 G34
VCC = 21.5V, VEE = –16.5V
VCM = –16.5V TO 17.5V
VCC = 38V, VEE = 0V
VCM = 0V TO 34V
±10.24V RANGE
INPUT COMMON MODE (V)
–16.5
0
17.5
34
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
1.5
2.0
234816 G31
15 UNITS
TEMPERATURE (°C)
–55 –35 –15 5
25 45 65 85 105 125
2.045
2.046
2.047
2.048
2.049
2.050
2.051
vs Temperature
Internal Reference Output
234816 G32
IOVDD
IVDD
IVEE
IVCC
WITH NAP MODE
tCNVL= 1µs
SAMPLING FREQUENCY (kHz)
0
40
80
120
160
200
–4
–2
0
2
4
6
8
10
12
14
16
18
234816 G33
±10.24V RANGE
IN+ = 200.0061kHz SQUARE WAVE
IN– = 0V
SETTLING TIME (ns)
–100 0 100 200 300 400 500 600 700 800 900
–32768
–24576
–16384
–8192
0
8192
16384
24576
32768
234816 G35
±10.24V RANGE
IN+ = 200.0061kHz
SQUARE WAVE
IN– = 0V
SETTLING TIME (ns)
–100 0 100 200 300 400 500 600 700 800 900
–100
–80
–60
–40
–20
0
20
40
60
80
100
234816 G36



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