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LTC2480 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC2480
Description  16-Bit ?誇 ADC with Easy Drive Input Current Cancellation
PDF  42 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2480 Datasheet(HTML) 4 Page - Linear Technology

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LTC2480
4
2480fc
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5)
l
140
dB
Input Common Mode Rejection
50Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5)
l
140
dB
Input Common Mode Rejection
60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5)
l
140
dB
Input Normal Mode Rejection
50Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 7)
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 7) (H-Grade)
l
l
110
104
120
dB
dB
Input Normal Mode Rejection
60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 8)
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 8) (H-Grade)
l
l
110
104
120
dB
dB
Input Normal Mode Rejection
50Hz/60Hz ±2%
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Notes 5, 9)
l
87
dB
Reference Common Mode
Rejection DC
2.5V ≤ VREF ≤ VCC, GND ≤ IN– = IN+ ≤ VCC (Note 5)
l
120
140
dB
Power Supply Rejection DC
VREF = 2.5V, IN– = IN+ = GND
120
dB
Power Supply Rejection, 50Hz ±2%
VREF = 2.5V, IN– = IN+ = GND (Notes 7, 9)
120
dB
Power Supply Rejection, 60Hz ±2%
VREF = 2.5V, IN– = IN+ = GND (Notes 8, 9)
120
dB
ANALOG INPUT AND REFERENCE The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
GND – 0.3V
VCC + 0.3V
V
IN–
Absolute/Common Mode IN– Voltage
GND – 0.3V
VCC + 0.3V
V
FS
Full-Scale of the Differential Input (IN+ – IN–)
l 0.5VREF/GAIN
V
LSB
Least Significant Bit of the Output Code
l
FS/216
VIN
Input Differential Voltage Range (IN+ – IN–)
l
–FS
+FS
V
VREF
Reference Voltage Range
l
0.1
VCC
V
CS (IN+)IN+ Sampling Capacitance
11
pF
CS (IN–)IN– Sampling Capacitance
11
pF
CS (VREF)VREF Sampling Capacitance
11
pF
IDC_LEAK (IN+)IN+ DC Leakage Current
Sleep Mode, IN+ = GND
l
–10
1
10
nA
IDC_LEAK (IN–)IN– DC Leakage Current
Sleep Mode, IN– = GND
l
–10
1
10
nA
IDC_LEAK (VREF)VREF DC Leakage Current
Sleep Mode, VREF = VCC
l
–100
1
100
nA
ANALOG INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage CS, fO, SDI
2.7V ≤ VCC ≤ 5.5V
l
VCC – 0.5
V
VIL
Low Level Input Voltage CS, fO, SDI
2.7V ≤ VCC ≤ 5.5V
l
0.5
V
VIH
High Level Input Voltage SCK
2.7V ≤ VCC ≤ 5.5V (Note 10)
l
VCC – 0.5
V
VIL
Low Level Input Voltage SCK
2.7V ≤ VCC ≤ 5.5V (Note 10)
l
0.5
V
IIN
Digital Input Current CS, fO, SDI
0V ≤ VIN ≤ VCC
l
–10
10
μA



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