LTC2440 Linear Technology, LTC2440 Datasheet - Page 6

• Manufacturer Part Number: LTC2440
• Description: 24-Bit High Speed Differential delta-sigma ADC
• Manufacturer: Linear Technology

LTC2440
TYPICAL PERFOR A CE CHARACTERISTICS
6
–20
–10
–10
–10
10
–5
–5
10
20
10
–1.25
5
0
0
5
0
–2.5
0
Integral Nonlinearity f
Integral Nonlinearity
vs Temperature
+Full-Scale Error vs V
V
V
V
V
V
V
V
V
CC
REF
REF
REF
CC
REF
REF
REF
–2
= 5V
= 5V
+
–
+
–
= 5V
T
= 2.5V
–0.75
= 5V
= GND
–1.5
= 2.5V
= GND
A
T
1
= –55°C
A
= 25°C
–1
–0.25
V
F
T
–0.5 0
V
OSR = 32768
F
O
A
O
INCM
INCM
2
= GND
V
= 25°C
= GND
V
V
REF
IN
T
IN
A
= 2.5V
= 1.25V
(V)
(V)
= 125°C
(V)
0.25
0.5
3
OUT
REF
1
W
= 6.875Hz
0.75
1.5
4
2440 G10
2440 G13
2440 G16
2
U
1.25
2.5
5
10.0
–10
2.5
7.5
5.0
–5
10
10
0
0
9
8
7
6
5
4
3
2
1
0
5
–2.5
4.5
0
Integral Nonlinearity
vs Conversion Rate
Integral Nonlinearity
vs Temperature
–Full-Scale Error vs V
V
V
V
V
V
V
V
V
V
V
V
V
CC
REF
REF
REF
REF
REF
REF
INCM
CC
REF
REF
REF
–2
500 1000 1500 2000
= 5V
= 5V
+
–
+
–
+
–
T
= 5V
= 2.5V
= 5V
A
–1.5
= 5V
= GND
= 2.5V
= GND
= 5V
= GND
= 1.25V
4.7
= –25°C
T
A
CONVERSION RATE (Hz)
= 125°C
–1
V
OSR = 32768
F
–0.5 0
–2.5V ≤ V
V
F
T
OSR = 32768
F
T
4.9
O
INCM
O
A
INCM
O
A
= GND
= GND
= 25°C
V
V
= GND
= 25°C
CC
IN
= 2.5V
= 2.5V
(V)
(V)
T
IN
0.5
5.1
A
= 25°C
≤ 2.5V
CC
2500 3000 3500
1
1.5
5.3
2440 G11
2440 G14
2440 G17
2
2.5
5.5
–20
–10
–10
–10
–5
–1
–2
–3
–4
–5
–6
–7
–8
–9
10
20
10
–1.25
0
0
0
5
4.5
0
Integral Nonlinearity vs V
–Full-Scale Error vs V
+Full-Scale Error vs V
V
V
V
V
V
V
V
V
CC
REF
REF
REF
REF
REF
REF
INCM
V
V
= 5V
+
–
+
–
= 2.5V
= 2.5V
–0.75
INCM
INCM
= 2.5V
= GND
= 2.5V
= GND
= 1.25V
4.7
1
= 3.75V
= 1.25V
–0.25
OSR = 32768
F
T
OSR = 32768
F
T
4.9
O
A
2
O
A
V
= GND
= 25°C
V
V
= GND
= 25°C
REF
CC
IN
V
INCM
(V)
(V)
(V)
0.25
5.1
3
= 2.5V
REF
CC
sn2440, 2440fas
INCM
0.75
5.3
4
2440 G12
2440 G15
2440 G18
1.25
5.5
5