LTC6802IG-2 LINER [Linear Technology], LTC6802IG-2 Datasheet - Page 5

• Manufacturer Part Number: LTC6802IG-2
• Description: Multicell Addressable Battery Stack Monitor
• Manufacturer: LINER [Linear Technology]

Typical perForMance characTerisTics
–0.5
–1.0
–1.5
–2.0
–10
2.0
1.5
1.0
0.5
10
–2
–4
–6
–8
20
18
16
14
12
10
8
6
4
2
0
8
6
4
2
0
0
–250
0
0
Cell Measurement Total
Unadjusted Error
Measurement Gain Error
Hysteresis
ADC INL
T
A
–200
0.5
= –45°C TO 25°C
CHANGE IN GAIN ERROR (ppm)
T
T
T
1.0
–150
T
1
A
A
A
A
= –40°C
= 25°C
= 85°C
= 125°C
1.5
–100
CELL VOLTAGE (V)
2.0
2
INPUT (V)
–50
2.5
0
3.0
3
50
3.5
100
4.0
4
150
4.5
68022 G09
68022 G21
68022 G05
200
5.0
5
–0.2
–0.4
–0.6
–0.8
–1.0
–10
–20
–30
–40
–50
–60
–70
–80
–10
–20
–30
–40
–50
–60
–70
1.0
0.8
0.6
0.4
0.2
10
0
0
0
10
0
0
Cell Measurement Common Mode
Rejection
Cell Measurement Total
Unadjusted Error vs Input
Resistance
ADC DNL
R
NO EXTERNAL CAPACITANCE ON
Cn AND Cn – 1
V
72dB REJECTION
CORRESPONDS TO
LESS THAN 1 BIT
AT ADC OUTPUT
CM(IN)
S
0.5
IN SERIES WITH Cn AND Cn – 1
100
1.0
1
= 5V
R
R
R
R
S
S
S
S
1.5
= 1k
= 2k
= 5k
= 10k
P-P
CELL VOLTAGE (V)
1k
FREQUENCY (Hz)
2.0
2
INPUT (V)
10k
2.5
3.0
3
100k
3.5
4.0
4
1M
4.5
68022 G06
68022 G10
68022 G15
10M
5.0
5
–10
–10
–20
–30
–40
–50
–60
–70
25
20
15
10
50
40
30
20
10
5
0
–250
0
0
–40
10
Measurement Gain Error
Hysteresis
ADC Normal Mode Rejection vs
Frequency
Cell Input Bias Current in Standby
T
A
–200
= 85°C TO 25°C
–20
CHANGE IN GAIN ERROR (ppm)
–150
100
0
–100
TEMPERATURE (°C)
FREQUENCY (Hz)
20
LTC6802-2
–50
40
1k
0
60
50
C12
C2 TO C11
80 100
10k
100
150
C1
68022 G20
68022 G03
68022 G14
68022fa

120
100k
200