ltc2493 Linear Technology Corporation, ltc2493 Datasheet - Page 9

• 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

Typical perForMance characTerisTics
1.0
0.8
0.2
0.6
0.4
–1
–2
–3
3
2
1
0
–1.25
0
0
Integral Nonlinearity (2x Speed
Mode; V
RMS Noise vs V
(2x Speed Mode)
V
V
V
F
V
V
V
F
T
O
CC
REF
IN(CM)
O
CC
IN
IN(CM)
A
= GND
= GND
= 25°C
= 0V
= 5V
= 5V
–0.75
= 2.5V
1
= 1.25V
= GND
–45°C, 25°C
CC
85°C
INPUT VOLTAGE (V)
= 5V, V
–0.25
2
V
REF
REF
REF
(V)
0.25
3
= 2.5V)
0.75
4
2493 G28
2493 G31
1.25
5
200
198
196
194
192
190
188
186
184
182
180
–1
–2
–3
3
2
1
0
–1.25
–1
Integral Nonlinearity (2x Speed
Mode; V
Offset Error vs V
(2x Speed Mode)
V
V
V
F
V
V
V
F
T
O
O
CC
REF
IN(CM)
CC
REF
IN
A
= GND
= GND
= 25°C
= 0V
–45°C, 25°C
= 2.7V
= 5V
–0.75
0
= 2.5V
= 5V
85°C
= 1.25V
CC
1
INPUT VOLTAGE (V)
= 2.7V, V
–0.25
V
IN(CM)
2
IN(CM)
0.25
(V)
3
REF
= 2.5V)
4
0.75
5
2493 G29
2493 G32
1.25
6
220
210
190
160
240
230
200
180
170
16
14
12
10
0
8
6
4
2
179
–45
Noise Histogram
(2x Speed Mode)
Offset Error vs Temperature
(2x Speed Mode)
10,000 CONSECUTIVE
READINGS
V
V
V
T
V
V
V
V
F
CC
REF
IN
A
O
CC
REF
IN
IN(CM)
–30
= 25°C
= GND
= 0V
= 5V
= 0V
= 5V
= 5V
= 5V
–15
181.4
= GND
OUTPUT READING (µV)
TEMPERATURE (°C)
0
15
183.8
LTC2493
AVERAGE = 0.184mV
30
RMS = 0.85µV
45
186.2
60
75
2493 G30
2493 G33
2493fa

188.6
90