Linear Technology LTC2430 Manual page 9

LTC2430/LTC2431
TYPICAL PERFOR A CE CHARACTERISTICS
Full-Scale Error vs V
REF
20
V
REF
15
F
O
V
10
T
+FS ERROR
5
0
–5
–FS ERROR
–10
–15
–20
0 0.5 1 1.5 2 2.5 3
V (V)
REF
PSRR vs Frequency at V
0
V = 4.1V
CC DC
+
REF = 2.5V
–20
–
REF = GND
+
IN = GND
–
–40
IN = GND
F = GND
O
T = 25°C
–60 A
–80
–100
–120
–140
1 10 100 1k 10k
FREQUENCY AT V
CC
Conversion Current
vs Output Data Rate
1000
V
REF
+
900 IN = GND
–
IN = GND
800
SCK = NC
SDO = NC
700
SDI = GND
CS = GND
600
F = EXT OSC
O
T = 25°C
A
500
400
300
200
100
0 10 20 30 40 50
OUTPUT DATA RATE (READINGS/SEC)
8
Full-Scale Error vs V
5
= 5V
CC
– 4
= GND
= GND
3
= 0.5V
INCM REF
= 25°C
2
A
1
0
–1
–2
–3
–4
–5
3.5 4 4.5 5 2.7 3.1
24301 G20
PSRR vs Frequency at V
CC
0
V = 4.1V
CC
+
REF
–20
–
REF
+
IN = GND
–
–40
IN = GND
F = GND
O
T = 25°C
A
–60
–80
–100
–120
–140
100k 1M 15170
(Hz)
24301 G23
= V
CC
V = 5V
CC
V = 3V
CC
100
60 70 80 90
24301 G26
CC
V = 2.5V
REF
–
REF = GND
F = GND
O
V = 0.5V
INCM REF
+FS ERROR
T = 25°C
A
–FS ERROR
3.5 3.9 4.3 4.7 5.1 5.5
V (V)
CC
24301 G21
CC
±0.7V
DC
= 2.5V
= GND
15220 15270 15320 15370
FREQUENCY AT V (Hz)
CC
24301 G24
Sleep Mode Current
vs Temperature
6
5
4
3
2
1
0
–45 –30
PSRR vs Frequency at V
0
±1.4V
V = 4.1V
CC DC
+
REF = 2.5V
–20
–
REF = GND
+
IN = GND
–
–40
IN = GND
F = GND
O
T = 25°C
A
–60
–80
–100
–120
–140
0 20 40 60 80 100 120
FREQUENCY AT V
Conversion Current vs Temperature
240
V = 5.5V
CC
230
220
V
CC
210
F = GND
O
200
CS = GND
SCK = NC
190
SDO = NC
180
V
CC
170
V = 2.7V
CC
160
–45 –30 –15 0 15
TEMPERATURE (°C)
F = GND
O
CS = V
CC
SCK = NC
SDO = NC
V = 5.5V
CC
V = 5V
CC
V = 3V
CC
V = 2.7V
CC
–15 0 15 30 45 60 75 90
TEMPERATURE (°C)
24301 G27
CC
140 160 180 200 220
(Hz)
CC
24301 G22
= 5V
= 3V
30 45 60 75 90
24301 G25
24301f