LTC2411 LINER [Linear Technology], LTC2411 Datasheet - Page 6

• Manufacturer Part Number: LTC2411
• Description: 24-Bit No Latency ADC with Differential Input and Reference in MSOP
• Manufacturer: LINER [Linear Technology]

LTC2411/LTC2411-1
TYPICAL PERFOR A CE CHARACTERISTICS
6
–1
–2
–3
–1
–2
–3
16
14
12
10
3
2
1
0
3
2
1
0
–2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5
–2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5
8
6
4
0
2
–2.0
Total Unadjusted Error
(V
Integral Nonlinearity
(V
Noise Histogram
V
REF
REF
V
F
V
REF
REF
V
F
10,000 CONSECUTIVE
READINGS
V
V
V
V
F
T
O
O
O
CC
CC
INCM
CC
CC
INCM
A
CC
REF
IN
INCM
= GND
= GND
= GND
= 25 C
= 0V
+
–
+
–
= 5V
= 5V
= 5V
–1.5
= 5V, V
= 5V, V
= 5V
= 5V
= GND
= 5V
= GND
= 2.5V
= 2.5V
= 2.5V
OUTPUT CODE (ppm OF V
–1.0
REF
REF
V
V
IN
IN
= 5V)
= 5V)
–0.5
(V)
(V)
T
T
A
A
T
T
A
A
= 25 C
= –45 C
= 90 C
= –45 C
GAUSSIAN
DISTRIBUTION
m = –0.647ppm
0
= 0.287ppm
REF
W
T
T
A
A
0.5
)
= 90 C
= 25 C
2411 G01
2411 G04
2411 G07
U
1
–0.5
–1.0
–1.5
–0.5
–0.5
–1.0
–1.5
–2.0
–1.0
–1.5
1.5
1.0
0.5
1.0
0.5
1.5
1.0
0.5
0
–1.25
0
–1.25
0
0
Total Unadjusted Error
(V
Integral Nonlinearity
(V
Long Term ADC Readings
V
F
V
REF
REF
V
F
V
REF
REF
V
F
O
CC
O
CC
CC
INCM
CC
O
CC
INCM
5 10 15 20
= GND, T
= GND
= GND
= 5V, V
+
–
= 5V
= 5V
+
–
–0.75
–0.75
= 5V, V
= 5V, V
= 2.5V
= GND
= 2.5V
= GND
= 2.5V
= 2.5V
REF
A
= 25 C, RMS NOISE = 0.29ppm
TIME (HOURS)
–0.25
–0.25
= 5V, V
REF
REF
25 30 35 40 45 50 55 60
V
V
IN
IN
= 2.5V)
= 2.5V)
IN
(V)
(V)
T
T
0.25
T
= 0V, V
0.25
A
A
T
A
= –45 C
A
= 90 C
= –45 C
= 90 C
INCM
0.75
T
0.75
T
A
A
= 2.5V,
= 25 C
= 25 C
2411 G08
2411 G02
2411 G01
1.25
1.25
–10
–10
0.5
0.4
0.3
0.2
0.1
–2
–4
–6
–8
10
10
–2
–4
–6
–8
8
6
4
2
0
–1.25
0
–1.25
8
6
4
2
0
–2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5
Total Unadjusted Error
(V
Integral Nonlinearity
(V
RMS Noise
vs Input Differential Voltage
V
REF
REF
V
F
T
V
V
V
F
V
REF
REF
V
F
O
O
CC
O
CC
CC
INCM
A
CC
REF
INCM
CC
INCM
= GND
= 25 C
= GND
= GND
+
–
= 2.7V
INPUT DIFFERENTIAL VOLTAGE (V)
+
–
= 5V
= 2.7V
– 0.75
= 2.7V, V
– 0.75
= 2.7V, V
= 5V
= 2.5V
= GND
= 2.5V
= GND
= 1.25V
= 2.5V
= 1.25V
– 0.25
– 0.25
REF
REF
V
V
T
IN
T
IN
A
T
A
T
A
(V)
(V)
= –45 C
= 2.5V)
= –45 C
= 2.5V)
A
= 25 C
0.25
0.25
= 25 C
T
A
= 90 C
T
0.75
0.75
A
= 90 C
2411 G06
2411 G09
2411 G03
1.25
1.25