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LTC2489 Datasheet(PDF) 7 Page - Linear Technology

Part # LTC2489
Description  16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2489 Datasheet(HTML) 7 Page - Linear Technology

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LTC2489
7
2489f
VREF (V)
0
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
123
4
2489 G10
5
VCC = 5V
REF – = GND
VIN = 0V
VIN(CM) = GND
TA = 25°C
FO = GND
TEMPERATURE (
°C)
–45 –30
300
304
310
–15
30
45
2489 G11
302
308
306
15
0
60
75
90
VCC = 4.1V
VREF = 2.5V
VIN = 0V
VIN(CM) = GND
FO = GND
VCC (V)
2.7
300
302
304
306
308
310
3.0
3.5
4.0
4.5
2489 G12
5.0
5.5
VREF = 2.5V
VIN = 0V
VIN(CM) = GND
FO = GND
TA = 25°C
TYPICAL PERFORMANCE CHARACTERISTICS
Offset Error vs VREF
On-Chip Oscillator Frequency
vs Temperature
On-Chip Oscillator Frequency
vs VCC
FREQUENCY AT VCC (Hz)
1
0
–20
–40
–60
–80
–100
–120
–140
1k
100k
2489 G13
10
100
10k
1M
VCC = 4.1V DC ±0.7V
VREF = 2.5V
IN+ = GND
IN– = GND
FO = GND
TA = 25°C
FREQUENCY AT VCC (Hz)
0
–140
–120
–80
–60
–40
0
20
100
140
2489 G14
–100
–20
80
180
220
200
40 60
120
160
VCC = 4.1V DC ±1.4V
VREF = 2.5V
IN+ = GND
IN– = GND
FO = GND
TA = 25°C
FREQUENCY AT VCC (Hz)
30600
–60
–40
0
30750
2489 G15
–80
–100
30650
30700
30800
–120
–140
–20
VCC = 4.1V DC ±0.7V
VREF = 2.5V
IN+ = GND
IN– = GND
FO = GND
TA = 25°C
TEMPERATURE (
°C)
–45
100
120
160
180
200
–15
15
30
90
2489 G16
140
–30
0
45
60
75
VCC = 5V
VCC = 2.7V
FO = GND
TEMPERATURE (
°C)
–45
0
0.2
0.6
0.8
1.0
2.0
1.4
–15
15
30
90
2489 G17
0.4
1.6
1.8
1.2
–30
0
45
60
75
VCC = 5V
VCC = 2.7V
FO = GND
OUTPUT DATA RATE (READINGS/SEC)
0
500
450
400
350
300
250
200
150
100
80
2489 G18
20
40
60
100
70
10
30
50
90
VCC = 5V
VCC = 3V
VREF = VCC
IN+ = GND
IN– = GND
TA = 25°C
PSRR vs Frequency at VCC
PSRR vs Frequency at VCC
PSRR vs Frequency at VCC
Conversion Current
vs Temperature
Sleep Mode Current
vs Temperature
Conversion Current
vs Output Data Rate



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