LTC2487 Linear Technology, LTC2487 Datasheet - Page 6

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

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LTC2487
Typical perForMance characTerisTics

–12
–1
–2
–3
12
–4
–8
14
12
10
3
2
1
0
8
4
0
8
6
4
0
2
–2.5
–2.5
–3
Integral Nonlinearity
(V
Noise Histogram (6.8sps)
Total Unadjusted Error
(V
10,000 CONSECUTIVE
READINGS
V
V
V
T
GAIN = 256
V
V
V
F
V
V
V
F
A
O
CC
REF
IN
CC
REF
IN(CM)
O
CC
CC
REF
IN(CM)
CC
–45°C
–2
–2
–2.4
= 25°C
= GND
85°C
= GND
= 0V
= 5V
= 5V
= 5V
= 5V
= 5V
= 5V, V
= 5V
–1.5
= 5V, V
–1.5
= 2.5V
= 2.5V
–1.8
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
0.5
25°C
0.5
RMS = 0.60µV
0
1
1
0.6
–45°C
85°C
1.5
1.5
1.2
2487 G01
2
2487 G04
2487 G07
2
2.5
2.5
1.8
–12
–1
–2
–3
12
–4
–8
14
12
10
3
2
1
0
8
4
0
–1.25
–1.25
8
0
6
4
2
–3
Noise Histogram (7.5sps)
Integral Nonlinearity
(V
Total Unadjusted Error
(V
10,000 CONSECUTIVE
READINGS
V
V
V
T
GAIN = 256
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
= GND
= GND
= 25°C
= 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, 85°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
2487 G02
2487 G05
2487 G08
1.25
1.25
1.8
–12
–1
–2
–3
–4
–5
–1
–2
–3
12
–4
–8
5
4
3
2
1
0
3
2
1
0
8
4
0
–1.25
–1.25
Total Unadjusted Error
(V
Long-Term ADC Readings
0
Integral Nonlinearity
(V
V
V
V
F
V
V
V
F
V
V
V
V
O
CC
O
CC
REF
IN(CM)
CC
REF
IN(CM)
CC
REF
IN
IN(CM)
CC
= GND
= GND
= 0V
= 2.7V
= 2.7V
= 5V
–0.75
= 2.7V, V
–0.75
10
= 2.5V
= 2.5V
= 5V
= 2.7V, V
= 2.5V
= 1.25V
= 1.25V
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
20
TIME (HOURS)
–0.25
–0.25
T
RMS NOISE = 0.60µV
GAIN = 256
A
REF
REF
= 25°C
30
= 2.5V)
= 2.5V)
–45°C, 25°C, 85°C
0.25
25°C
0.25
40
0.75
0.75
85°C
–45°C
50
2487 G09
2487 G06
2487 G03
2487fa
1.25
1.25
60