LTC2485 LINER [Linear Technology], LTC2485 Datasheet - Page 8

• Manufacturer Part Number: LTC2485
• Description: 24-Bit ?? ADC with Easy Drive Input Current Cancellation and I2C Interface
• Manufacturer: LINER [Linear Technology]

LTC2485
TYPICAL PERFOR A CE CHARACTERISTICS
8
–100
–120
–140
0.40
0.35
0.30
0.20
0.25
310
302
300
308
306
304
–20
–60
–40
–80
30600
0
–60
2.5
Temperature Sensor
vs Temperature
On-Chip Oscillator Frequency
vs V
PSRR vs Frequency at V
V
V
IN
IN
T
V
V
A
CC
REF
CC
REF
+
–
= 25°C
= GND
= GND
CC
= 4.1V DC ±0.7V
–30
= 5V
3.0
= 2.5V
= 1.4V
30650
FREQUENCY AT V
TEMPERATURE (°C)
3.5
0
V
30700
CC
30
4.0
(V)
CC
60
4.5
V
V
V
(Hz)
30750
REF
IN
IN(CM)
CC
W
= 0V
= 2.5V
90
5.0
= GND
2485 G19
2485 G22
2485 G25
120
U
30800
5.5
–100
–120
–140
–20
–40
–60
–80
200
180
160
140
100
120
–1
–2
–3
–4
–5
5
4
3
2
1
0
0
–60
–45
PSRR vs Frequency at V
1
Conversion Current
vs Temperature
Temperature Sensor Error
vs Temperature
V
V
V
IN
IN
T
CC
A
CC
REF
–30
+
–
= 25°C
= GND
= GND
= 5V
= 4.1V DC
–30
10
= 2.5V
–15
FREQUENCY AT V
TEMPERATURE (°C)
TEMPERATURE (°C)
100
0
0
V
V
15
CC
V
CC
30
REF
1k
= 2.7V
= 5V
30
= 1.4V
CC
60
10k
45
(Hz)
CC
60
90
100k
75
2485 G20
2485 G23
2485 G26
120
1M
90
–100
–120
–140
–20
–60
310
308
306
304
302
300
–40
–80
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
–45 –30
–45
PSRR vs Frequency at V
On-Chip Oscillator Frequency
vs Temperature
Sleep Mode Current
vs Temperature
0
V
V
IN
IN
T
V
V
V
V
A
CC
REF
CC
REF
IN
IN(CM)
+
–
20
–30
= 25°C
= GND
= GND
= 0V
= 4.1V DC ±1.4V
= 4.1V
= 2.5V
= 2.5V
40 60
–15
–15
= GND
FREQUENCY AT V
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
80
V
V
CC
100
15
15
CC
= 2.7V
= 5V
120
30
30
140
CC
45
45
(Hz)
160
CC
60
60
180
75
75
200
2485 G21
2485 G24
2485 G27
2485fa
220
90
90