LTC2492 Linear Technology, LTC2492 Datasheet - Page 6

• Manufacturer Part Number: LTC2492
• Description: 24-Bit 2-/4-Channel ADC
• Manufacturer: Linear Technology

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LTC2492
TYPICAL PERFORMANCE CHARACTERISTICS
6
–12
–4
–8
14
12
–1
–2
–3
12
10
0
8
6
4
3
2
1
0
8
4
0
2
–2.5
–2.5
–3
Integral Nonlinearity
(V
Total Unadjusted Error
(V
Noise Histogram (6.8sps)
10,000 CONSECUTIVE
READINGS
V
V
V
T
V
V
V
F
V
V
V
F
A
CC
REF
IN
O
O
CC
CC
REF
IN(CM)
CC
CC
REF
IN(CM)
–2.4
–2
–2
–45°C
= 25°C
= GND
= GND
85°C
= 0V
= 5V
= 5V
= 5V
= 5V
= 5V, V
= 5V, V
= 5V
= 5V
–1.5
–1.5
–1.8
= 2.5V
= 2.5V
OUTPUT READING (μV)
–1
–1
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
–1.2
REF
–0.5
REF
–0.5
25°C
–0.6
= 5V)
= 5V)
0
0
AVERAGE = –0.69μV
RMS = 0.60μV
0.5
25°C
0.5
0
1
1
0.6
–45°C
85°C
1.5
1.5
1.2
2492 G07
2492 G01
2492 G04
2
2
1.8
2.5
2.5
–12
–4
–8
–1
–2
–3
12
14
12
10
3
2
1
0
–1.25
8
4
0
–1.25
8
0
6
4
2
–3
Integral Nonlinearity
(V
Total Unadjusted Error
(V
Noise Histogram (7.5sps)
10,000 CONSECUTIVE
READINGS
V
V
V
T
V
V
V
F
V
V
V
F
O
O
CC
REF
IN
A
CC
REF
IN(CM)
CC
REF
IN(CM)
CC
CC
–2.4
= 25°C
= GND
= GND
= 0V
= 2.7V
= 5V
= 5V
–0.75
–0.75
= 2.5V
= 2.5V
= 2.5V
= 5V, V
= 5V, V
= 1.25V
= 1.25V
–1.8
OUTPUT READING (μV)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
–1.2
–0.25
–0.25
REF
REF
–45°C, 25°C, 90°C
–0.6
= 2.5V)
= 2.5V)
25°C
AVERAGE = –0.19μV
0.25
0.25
RMS = 0.59μV
0
0.6
85°C
–45°C
0.75
0.75
1.2
2492 G02
2492 G05
2492 G08
1.25
1.25
1.8
–12
–4
–8
–1
–2
–4
–5
–1
–2
–3
12
–3
3
2
1
0
8
4
0
5
4
3
2
1
0
–1.25
–1.25
0
Integral Nonlinearity
(V
Total Unadjusted Error
(V
Long-Term ADC Readings
V
T
V
V
V
F
V
V
V
F
A
CC
O
O
CC
CC
REF
IN(CM)
CC
CC
REF
IN(CM)
= 25°C, RMS NOISE = 0.60μV
= GND
= GND
= 5V, V
= 2.7V
= 2.7V
–0.75
–0.75
= 2.7V, V
= 2.5V
= 2.7V, V
= 2.5V
10
= 1.25V
= 1.25V
REF
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
20
–0.25
–0.25
TIME (HOURS)
= 5V, V
REF
REF
30
IN
= 2.5V)
= 2.5V)
–45°C, 25°C, 90°C
0.25
25°C
0.25
= 0V, V
40
IN(CM)
0.75
0.75
85°C
–45°C
50
= 2.5V
2492 G03
2492 G06
2492 G09
2492fb
1.25
1.25
60