Datasheet

LTC2945
7
2945fa
For more information www.linear.com/LTC2945
Typical perForMance characTerisTics
SDAO, SDAO, ALERT Loaded
Output Low Voltage
SENSE
+
Input Current
SCL, SDAI Loaded Clamp Voltage
SENSE
–
Input Current
INTV
CC
Shunt Regulator Load
Regulation
ADRO, ADR1 Voltage with Current
Sink or Source
ADC Integral Nonlinearity
(ΔSENSE)
ADC Differential Nonlinearity
(ΔSENSE)
ADC Total Unadjusted Error
(ΔSENSE)
V
DD
= 48V, T
A
= 25°C, unless noted.
CODE
0
–0.4
ADC INL (LSB)
0.4
0.2
–0.2
0.0
3072
4096
1024 2048
2945 G10
CODE
0
–0.3
ADC DNL (LSB)
0.3
0.0
0.1
0.2
–0.2
–0.1
3072
4096
1024 2048
2945 G11
CODE
0
–0.50
ADC TOTAL UNADJUSTED ERROR (%)
0.50
0.25
–0.25
0.00
3072
4096
1024 2048
2945 G12
I
SDA
,
ALERT
(mA)
0
0.0
V
SDA
,
ALERT(OL)
(V)
0.4
0.3
0.1
0.2
8
10
2 4 6
2945 G13
I
LOAD
(mA)
0.01
6.0
V
SDA
,
SCL(CL)
(V)
6.6
6.5
6.1
6.2
6.3
6.4
10.00
0.10 1.00
2945 G14
V
SENSE
+ (V)
0
–10
I
SENSE
+ (µA)
150
110
30
70
80
20 40 60
2945 G16
V
SENSE
+ (V)
0
–2
I
SENSE
– (µA)
10
8
6
0
4
2
80
20 40 60
2945 G17
I
ADR
(µA)
–10
0.0
V
ADR
(V)
3.0
2.5
2.0
0.5
1.5
1.0
10
–5 0 5
2945 G18
V
CC
SHUNT CURRENT (mA)
0
6.0
INTV
CC
VOLTAGE (V)
6.6
6.4
6.2
30
40
10 20
2945 G15