參數(shù)資料
型號(hào): LTNT
廠商: Linear Technology Corporation
英文描述: 24-Bit No Latency ADC with Differential Input and Reference in MSOP
中文描述: 24位不具有差動(dòng)輸入和ADC的參考延遲,采用MSOP
文件頁(yè)數(shù): 6/40頁(yè)
文件大?。?/td> 503K
代理商: LTNT
LTC2411/LTC2411-1
6
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 5V)
V
IN
(V)
–2.5 –2 –1.5 –1 –0.5 0
0.5
1
1.5
2
2.5
T
R
)
2411 G01
3
2
1
0
–1
–2
–3
T
A
= 25
°
C
V
CC
= 5V
REF
= 5V
REF
= GND
V
INCM
= 2.5V
F
O
T
A
= –45
°
C
T
A
= 90
°
C
V
IN
(V)
–1.25
–0.75
–0.25
0.25
0.75
1.25
T
R
)
2411 G02
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
V
CC
= 5V
REF
= 2.5V
REF
= GND
V
INCM
= 2.5V
F
O
= GND
T
A
= –45
°
C
T
A
= 90
°
C
T
A
= 25
°
C
V
IN
(V)
–1.25
T
R
)
2
6
10
0.75
2411 G03
–2
–6
0
4
8
–4
–8
–10
–0.75
–0.25
0.25
1.25
T
A
= 90
°
C
V
CC
= 2.7V
REF
= 2.5V
REF
= GND
V
INCM
= 1.25V
F
O
= GND
T
A
= –45
°
C
T
A
= 25
°
C
Total Unadjusted Error
(V
CC
= 5V, V
REF
= 2.5V)
Total Unadjusted Error
(V
CC
= 2.7V, V
REF
= 2.5V)
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 5V)
V
IN
(V)
–2.5 –2 –1.5 –1 –0.5 0
0.5
1
1.5
2
2.5
I
R
)
2411 G04
3
2
1
0
–1
–2
–3
T
A
= 25
°
C
T
A
= 90
°
C
V
CC
= 5V
REF
= 5V
REF
= GND
V
INCM
= 2.5V
F
O
T
A
= –45
°
C
Integral Nonlinearity
(V
CC
= 5V, V
REF
= 2.5V)
Integral Nonlinearity
(V
CC
= 2.7V, V
REF
= 2.5V)
V
IN
(V)
–1.25
–0.75
–0.25
0.25
0.75
1.25
I
R
)
2411 G01
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
V
= 5V
REF
+
= 2.5V
REF
= GND
V
INCM
= 2.5V
F
O
T
A
= 90
°
C
T
A
= –45
°
C
T
A
= 25
°
C
V
IN
(V)
–1.25
I
R
)
2
6
10
0.75
2411 G06
–2
–6
0
4
8
–4
–8
–10
–0.75
–0.25
0.25
1.25
T
A
= 90
°
C
V
= 2.7V
REF
+
= 2.5V
REF
= GND
V
INCM
= 1.25V
F
O
T
A
= –45
°
C
T
A
= 25
°
C
Noise Histogram
OUTPUT CODE (ppm OF V
REF
)
–2.0
N
6
8
10
–0.5
0.5
2411 G07
4
2
0
–1.5
–1.0
0
12
14
16
1
10,000 CONSECUTIVE
READINGS
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
INCM
= 2.5V
F
O
T
A
= 25
°
C
GAUSSIAN
DISTRIBUTION
m = –0.647ppm
σ
= 0.287ppm
TIME (HOURS)
0
–2.0
A
R
)
–1.5
–1.0
–0.5
0
1.0
5 10 15 20
2411 G08
25 30 35 40 45 50 55 60
0.5
V
CC
= 5V, V
REF
= 5V, V
= 0V, V
= 2.5V,
F
O
= GND, T
A
= 25
°
C, RMS NOISE = 0.29ppm
Long Term ADC Readings
INPUT DIFFERENTIAL VOLTAGE (V)
–2.5 –2 –1.5 –1 –0.5 0
0.5
1
1.5
2
2.5
R
R
)
2411 G09
0.5
0.4
0.3
0.2
0.1
0
T
A
= 25
°
C
V
CC
= 5V
V
REF
= 5V
V
INCM
= 2.5V
F
O
= GND
RMS Noise
vs Input Differential Voltage
TYPICAL PERFOR U
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