參數(shù)資料
型號: 2495
廠商: Linear Technology Corporation
英文描述: 16-Bit 8-/16-Channel ツヒ ADC with PGA, Easy Drive and I2C Interface
中文描述: 16位8-/16-ChannelツヒADC,帶PGA巡回賽,輕松驅(qū)動和I2C接口
文件頁數(shù): 6/32頁
文件大小: 558K
代理商: 2495
LTC2495
6
2495f
TYPICAL PERFORMANCE CHARACTERISTICS
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 5V)
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 2.5V)
Integral Nonlinearity
(V
CC
= 2.7V, V
REF
= 2.5V)
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 5V)
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 2.5V)
Total Unadjusted Error
(V
CC
= 2.7V, V
REF
= 2.5V)
Noise Histogram (6.8sps)
Noise Histogram (7.5sps)
Long-Term ADC Readings
INPUT VOLTAGE (V)
–3
I
R
)
–1
1
3
–2
0
2
–1.5
–0.5
0.5
1.5
2495 G01
2.5
–2
–2.5
–1
0
1
2
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
F
O
= GND
85
°
C
–45
°
C
25
°
C
INPUT VOLTAGE (V)
–3
I
R
)
–1
1
3
–2
0
2
–0.75
–0.25
0.25
0.75
2495 G02
1.25
–1.25
V
CC
= 5V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
F
O
–45
°
C, 25
°
C, 85
°
C
INPUT VOLTAGE (V)
–3
I
R
)
–1
1
3
–2
0
2
–0.75
–0.25
0.25
0.75
2495 G03
1.25
–1.25
V
CC
= 2.7V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
F
O
–45
°
C, 25
°
C, 85
°
C
INPUT VOLTAGE (V)
–12
T
R
)
–4
4
12
–8
0
8
–1.5
–0.5
0.5
1.5
2495 G04
2.5
–2
–2.5
–1
0
1
2
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
F
O
= GND
85
°
C
25
°
C
–45
°
C
INPUT VOLTAGE (V)
–12
T
R
)
–4
4
12
–8
0
8
–0.75
–0.25
0.25
0.75
2495 G05
1.25
–1.25
V
CC
= 5V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
F
O
= GND
85
°
C
25
°
C
–45
°
C
INPUT VOLTAGE (V)
–12
T
R
)
–4
4
12
–8
0
8
–0.75
–0.25
0.25
0.75
2495 G06
1.25
–1.25
V
CC
= 2.7V
V
REF
= 2.5V
V
IN(CM)
= 1.25V
F
O
= GND
85
°
C
25
°
C
–45
°
C
OUTPUT READING (
μ
V)
–3
N
8
10
12
0.6
2495 G07
6
4
–1.8
–0.6
–2.4
1.2
–1.2
0
1.8
2
0
14
10,000 CONSECUTIVE
READINGS
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
T
= 25
°
C
GAIN = 256
RMS = 0.60
μ
V
AVERAGE = –0.69
μ
V
OUTPUT READING (
μ
V)
–3
N
8
10
12
0.6
2495 G08
6
4
–1.8
–0.6
–2.4
1.2
–1.2
0
1.8
2
0
14
10,000 CONSECUTIVE
READINGS
V
CC
= 2.7V
V
REF
= 2.5V
V
IN
= 0V
T
= 25
°
C
GAIN = 256
RMS = 0.59
μ
V
AVERAGE = –0.19
μ
V
TIME (HOURS)
0
–5
A
μ
V
–3
–1
1
10
20
30
40
2495 G09
50
3
5
–4
–2
0
2
4
60
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
IN(CM)
= 2.5V
T
A
= 25
°
C
RMS NOISE = 0.60
μ
V
GAIN = 256
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