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LTC2756 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC2756
Description  Octal, 18-Bit, 200ksps Differential 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

LTC2756 Datasheet(HTML) 6 Page - Linear Technology

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LTC2345-18
6
234518f
For more information www.linear.com/LTC2345-18
power requireMenTs
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CMOS I/O Mode
VDD
Supply Voltage
l
4.75
5.00
5.25
V
OVDD
Supply Voltage
l
1.71
5.25
V
IVDD
Supply Current
200ksps Sample Rate, 8 Channels Enabled
200ksps Sample Rate, 8 Channels Enabled, VREFBUF = 5V (Note 14)
Acquisition Mode
Power Down Mode (C-Grade and I-Grade)
Power Down Mode (H-Grade)
l
l
l
l
l
15.3
13.7
1.3
65
65
17.6
15.8
2.1
225
500
mA
mA
mA
μA
µA
IOVDD
Supply Current
200ksps Sample Rate, 8 Channels Enabled (CL = 25pF)
Acquisition Mode
Power Down Mode
l
l
l
1.8
1
1
2.6
20
20
mA
μA
μA
PD
Power Dissipation
200ksps Sample Rate, 8 Channels Enabled
Acquisition Mode
Power Down Mode (C-Grade and I-Grade)
Power Down Mode (H-Grade)
l
l
l
l
81
6.5
0.33
0.33
95
11
1.2
2.6
mW
mW
mW
mW
LVDS I/O Mode
VDD
Supply Voltage
l
4.75
5.00
5.25
V
OVDD
Supply Voltage
l
2.375
5.25
V
IVDD
Supply Current
200ksps Sample Rate, 8 Channels Enabled
200ksps Sample Rate, 8 Channels Enabled, VREFBUF = 5V (Note 14)
Acquisition Mode
Power Down Mode (C-Grade and I-Grade)
Power Down Mode (H-Grade)
l
l
l
l
l
17.9
16.2
2.8
65
65
20.6
18.6
3.8
225
500
mA
mA
mA
μA
µA
IOVDD
Supply Current
200ksps Sample Rate, 8 Channels Enabled (RL = 100Ω)
Acquisition or (RL = 100Ω)
Power Down Mode
l
l
l
7
7
1
8.5
8.0
20
mA
mA
μA
PD
Power Dissipation
200ksps Sample Rate, 8 Channels Enabled
Acquisition Mode
Power Down Mode (C-Grade and I-Grade)
Power Down Mode (H-Grade)
l
l
l
l
107
32
0.33
0.33
125
39
1.2
2.6
mW
mW
mW
mW
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSMPL
Maximum Sampling Frequency
8 Channels Enabled
7 Channels Enabled
6 Channels Enabled
5 Channels Enabled
4 Channels Enabled
3 Channels Enabled
2 Channels Enabled
1 Channels Enabled
l
l
l
l
l
l
l
l
200
225
266
300
375
450
625
1000
ksps
ksps
ksps
ksps
ksps
ksps
ksps
ksps
tCYC
Time Between Conversions
8 Channels Enabled, fSMPL = 200ksps
7 Channels Enabled, fSMPL = 225ksps
6 Channels Enabled, fSMPL = 266ksps
5 Channels Enabled, fSMPL = 300ksps
4 Channels Enabled, fSMPL = 375ksps
3 Channels Enabled, fSMPL = 450ksps
2 Channels Enabled, fSMPL = 625ksps
1 Channels Enabled, fSMPL = 1000ksps
l
l
l
l
l
l
l
l
5000
4444
3750
3333
2666
2222
1600
1000
ns
ns
ns
ns
ns
ns
ns
ns
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 8)
aDc TiMing characTerisTics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 8)



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