LTC2487 Linear Technology, LTC2487 Datasheet - Page 8

• Manufacturer Part Number: LTC2487
• Description: 16-Bit 2-/4-Channel ADC
• Manufacturer: Linear Technology

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LTC2487
Typical perForMance characTerisTics

–100
–140
–120
–60
–20
–40
–80
306
300
310
308
304
302
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
0
On-Chip Oscillator Frequency
vs Temperature
PSRR vs Frequency at V
Sleep Mode Current
vs Temperature
V
V
IN
IN
F
T
F
V
V
V
V
F
O
CC
REF
A
O
O
CC
REF
IN
IN(CM)
+
–
20
–30
= GND
= 25°C
= GND
= GND
= GND
= GND
= 4.1V DC ±1.4V
= 0V
= 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
200
75
2487 G22
2487 G19
2487 G25
220
90
90
–100
–120
–140
500
450
400
350
300
250
200
150
100
310
308
306
304
302
300
–20
–40
–60
–80
30600
0
2.5
0
On-Chip Oscillator Frequency
vs V
PSRR vs Frequency at V
Conversion Current
vs Output Data Rate
V
IN
IN
F
T
V
V
IN
IN
F
T
V
V
V
F
T
O
O
REF
A
CC
REF
A
O
A
REF
IN
IN(CM)
+
–
+
–
10
= GND
= EXT OSC
= 25°C
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
= GND
= 25°C
= GND
= GND
= GND
= GND
= 0V
= 4.1V DC ±0.7V
CC
3.0
= 2.5V
= V
= 2.5V
20
30650
CC
= GND
FREQUENCY AT V
30
3.5
40
V
30700
CC
4.0
50
(V)
60
V
CC
CC
4.5
V
70
(Hz)
= 5V
CC
30750
CC
= 3V
80
5.0
90
2487 G20
2487 G26
2487 G23
30800
100
5.5
–100
–120
–140
–20
–40
–60
–80
180
160
140
100
200
120
–1
–2
–3
0
3
2
1
0
–2.5
–45
1
PSRR vs Frequency at V
Conversion Current
vs Temperature
Integral Nonlinearity (2x Speed
Mode; V
F
V
V
IN
IN
F
T
O
O
A
CC
REF
+
–
–30
–2
= GND
= 25°C
= GND
= GND
= GND
= 4.1V DC ±0.7V
10
= 2.5V
–1.5
–15
FREQUENCY AT V
CC
–1
INPUT VOLTAGE (V)
TEMPERATURE (°C)
100
0
= 5V, V
–0.5
V
V
15
CC
CC
1k
0
= 2.7V
= 5V
30
REF
25°C, 85°C
0.5
CC
10k
45
= 5V)
V
V
V
F
(Hz)
1
O
–45°C
CC
REF
IN(CM)
CC
= GND
60
= 5V
1.5
= 5V
100k
= 2.5V
75
2487 G21
2487 G27
2487 G24
2
2487fa
1M
2.5
90