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LTC2480 Datasheet(PDF) 32 Page - Linear Technology

Part # LTC2480
Description  16-Bit ADC with Easy Drive
PDF  40 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2480 Datasheet(HTML) 32 Page - Linear Technology

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LTC2480
2480f
APPLICATIO S I FOR ATIO
Figure 23. Resolution (NoiseRMS ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 24. Resolution (INLMAX ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 25. Offset Error vs Output
Data Rate and Reference Voltage
Figure 26. Resolution (NoiseRMS ≤ 1LSB)
vs Output Data Rate and Reference Voltage
Figure 27. Resolution (INLMAX ≤ 1LSB) vs
Output Data Rate and Reference Voltage
OUTPUT DATA RATE (READINGS/SEC)
0
10
12
16
18
20
24
10
50
70
2480 F23
14
22
40
90 100
20 30
60
80
VIN(CM) = VREF(CM)
VCC = VREF = 5V
VIN = 0V
FO = EXT CLOCK
RES = LOG 2 (VREF/NOISERMS)
TA = 85°C
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
10
12
16
18
22
10
50
70
2480 F24
14
20
40
90 100
20 30
60
80
TA = 85°C
TA = 25°C
VIN(CM) = VREF(CM)
VCC = VREF = 5V
FO = EXT CLOCK
RES = LOG 2 (VREF/INLMAX)
OUTPUT DATA RATE (READINGS/SEC)
0
–10
–5
5
10
20
10
50
70
2480 F25
0
15
40
90 100
20 30
60
80
VCC = 5V, VREF = 2.5V
VCC = VREF = 5V
VIN(CM) = VREF(CM)
VIN = 0V
FO = EXT CLOCK
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
10
12
16
18
20
24
10
50
70
2480 F26
14
22
40
90 100
20 30
60
80
VIN(CM) = VREF(CM)
VIN = 0V
FO = EXT CLOCK
TA = 25°C
RES = LOG 2 (VREF/NOISERMS)
VCC = 5V, VREF = 2.5V
VCC = VREF = 5V
OUTPUT DATA RATE (READINGS/SEC)
0
10
12
16
18
22
10
50
70
2480 F27
14
20
40
90 100
20 30
60
80
VCC = 5V, VREF = 2.5V
VCC = VREF = 5V
VIN(CM) = VREF(CM)
VIN = 0V
REF– = GND
FO = EXT CLOCK
TA = 25°C
RES = LOG 2 (VREF/INLMAX)
temperature. In certain circumstances, a reduction of the
differential reference voltage may be beneficial.
Input Bandwidth
The combined effect of the internal SINC4 digital filter and
of the analog and digital autocalibration circuits deter-
mines the LTC2480 input bandwidth. When the internal
oscillator is used with the notch set at 60Hz, the 3dB input
bandwidth is 3.63Hz. When the internal oscillator is used
with the notch set at 50Hz, the 3dB input bandwidth is
3.02Hz. If an external conversion clock generator of fre-
quency fEOSC is connected to the FO pin, the 3dB input
bandwidth is 11.8 • 10–6 • fEOSC.



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