ltc2493 Linear Technology Corporation, ltc2493 Datasheet - Page 8

• Manufacturer Part Number: ltc2493
• Description: 24-bit 2-/4-channel Delta Sigma Adc With Easy Drive Input Current Cancellation And I2c Interface
• Manufacturer: Linear Technology Corporation

LTC2493
Typical perForMance characTerisTics

–100
–120
–140
306
300
–20
–60
310
308
304
302
–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
0
On-Chip Oscillator Frequency
vs Temperature
PSRR vs Frequency at V
Sleep Mode Current
vs Temperature
F
V
V
IN
IN
F
T
V
V
V
V
F
O
O
CC
REF
A
O
CC
REF
IN
IN(CM)
+
–
20
–30
= GND
= GND
= 25°C
= GND
= 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
2493 G19
2493 G22
2493 G25
220
90
90
–100
–120
–140
310
302
300
308
306
304
–20
–60
–40
–80
500
450
400
350
300
250
200
150
100
30600
0
2.5
0
On-Chip Oscillator Frequency
vs V
PSRR vs Frequency at V
Conversion Current
vs Output Data Rate
V
V
IN
IN
F
T
V
IN
IN
F
T
O
A
O
CC
REF
REF
A
+
–
+
–
10
= GND
= 25°C
= EXT OSC
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
= GND
= GND
= GND
= GND
= 4.1V DC ±0.7V
CC
3.0
= 2.5V
= V
20
30650
CC
FREQUENCY AT V
30
3.5
40
V
30700
CC
4.0
50
(V)
60
V
CC
CC
4.5
V
V
V
V
F
T
70
(Hz)
= 5V
O
30750
CC
REF
IN
IN(CM)
A
CC
= GND
= 25°C
= 0V
= 3V
= 2.5V
80
5.0
= GND
2493 G20
90
2493 G23
2493 G26
30800
100
5.5
–100
–120
–140
–20
–40
–60
–80
200
180
160
140
100
120
–1
–2
–3
3
2
1
0
0
–2.5
–45
1
PSRR vs Frequency at V
Conversion Current
vs Temperature
Integral Nonlinearity (2x Speed
Mode; V
V
V
IN
IN
F
T
F
O
O
A
CC
REF
–2
+
–
–30
= 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
2493 G27
2493 G21
2
2493 G24
2493fa
1M
2.5
90