Datasheet

LTC2990
5
2990fc
Single-Ended Noise Single-Ended Transfer Function Single-Ended INL
LTC2990 Differential Noise Differential Transfer Function Differential INL
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
CC
= 3.3V unless otherwise noted
LSBs (305.18μV/LSB)
–3
COUNTS
3500
0
2990 G10
2000
1000
–2 –1 1
500
0
4000
4800 READINGS
3000
2500
1500
23
V
X
(V)
–1
4
5
24
2990 G11
3
2
–0 1
356
1
0
–1
6
LTC2990 VALUE (V)
V
CC
= 5V
V
CC
= 3.3V
LSBs (19.42μV/LSB)
–4
COUNTS
300
400
500
800 READINGS
–1 1
2990 G13
200
100
0
–3 –2
0
23
V1-V2 (V)
–0.4
LTC2990 V1-V2 (V)
0
0.2
0.4
2990 G14
–0.2
–0.4
–0.2
0
0.2
–0.3
–0.1
0.1
0.3
0.4
–0.1
0.1
–0.3
0.3
T
INT
Noise Remote Diode Noise POR Thresholds vs Temperature
(°C)
–0.75 –0.5
0
COUNTS
200
500
1000 READINGS
–0.25
0.25
0.5
2990 G16
100
400
300
0
0.75
(°C)
–0.75 –0.5
0
COUNTS
200
600
1000 READINGS
500
–0.25
0.25
0.5
2990 G17
100
400
300
0
0.75
T
AMB
(°C)
–50
THRESHOLD (V)
1.8
2.2
150
2990 G18
1.4
1.0
0
50
100
–25
25
75
125
2.6
1.6
2.0
1.2
2.4
V
CC
RISING
V
CC
FALLING
V
X
(V)
0
–1.0
INL (LSBs)
–0.5
0
0.5
1.0
1234
2990 G12
5
V
CC
= 5V
V
CC
= 3.3V
V
IN
(V)
–0.4
INL (LSBs)
0
1
0.4
2990 G15
–1
–2
–0.2
0
0.2
2