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LTC2439-1 Datasheet(PDF) 3 Page - Linear Technology

Part No. LTC2439-1
Description  8-/16-Channel 16-Bit No Latency Delta-Sigma ADC
Download  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2439-1 Datasheet(HTML) 3 Page - Linear Technology

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LTC2439-1
3
24391f
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V
≤ REF+ ≤ VCC, REF= GND,
q
130
140
dB
GND
≤ IN= IN+ ≤ VCC (Note 5)
Input Common Mode Rejection
2.5V
≤ REF+ ≤ VCC, REF= GND,
q
140
dB
49Hz to 61.2Hz
GND
≤ IN= IN+ ≤ VCC, (Note 5)
Input Normal Mode Rejection
(Note 5)
q
87
dB
49Hz to 61.2Hz
Reference Common Mode
2.5V
≤ REF+ ≤ VCC, GND ≤ REF≤ 2.5V,
q
130
140
dB
Rejection DC
VREF = 2.5V, IN
= IN+ = GND (Note 5)
Power Supply Rejection, DC
REF+ = 2.5V, REF= GND, IN= IN+ = GND
120
dB
Power Supply Rejection,
REF+ = 2.5V, REF= GND, IN= IN+ = GND
120
dB
Simultaneous 50Hz/60Hz
±2%
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)
CO VERTER CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN+
Absolute/Common Mode IN+ Voltage
q
GND – 0.3
VCC + 0.3
V
IN
Absolute/Common Mode INVoltage
q
GND – 0.3
VCC + 0.3
V
VIN
Input Differential Voltage Range
q
–VREF/2
VREF/2
V
(IN+ – IN)
REF+
Absolute/Common Mode REF+ Voltage
q
0.1
VCC
V
REF
Absolute/Common Mode REFVoltage
q
GND
VCC – 0.1
V
VREF
Reference Differential Voltage Range
q
0.1
VCC
V
(REF+ – REF)
CS (IN+)IN+ Sampling Capacitance
18
pF
CS (IN)INSampling Capacitance
18
pF
CS (REF+)REF+ Sampling Capacitance
18
pF
CS (REF
)REFSampling Capacitance
18
pF
IDC_LEAK (IN
+)IN+ DC Leakage Current
CS = VCC = 5.5V, IN
+ = GND
q
–100
1
100
nA
IDC_LEAK (IN
)INDC Leakage Current
CS = VCC = 5.5V, IN
= 5V
q
–100
1
100
nA
IDC_LEAK (REF+)REF+ DC Leakage Current
CS = VCC = 5.5V, REF+ = 5V
q
–100
1
100
nA
IDC_LEAK (REF)REFDC Leakage Current
CS = VCC = 5.5V, REF= GND
q
–100
1
100
nA
Off Channel to On Channel Isolation
DC
140
dB
(RIN = 100Ω)
1Hz
140
dB
fS = 15,3600Hz
140
dB
tOPEN
MUX Break-Before-Make Interval
2.7V
≤ VCC ≤ 5.5V
100
ns
IS(OFF)
Channel Off Leakage Current
Channel at VCC and GND
q
–100
1
100
nA
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
A ALOG I PUT A D REFERE CE


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