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2645L8 View Datasheet(PDF) - Linear Technology

Part Name
Description
MFG CO.
'2645L8' PDF : 20 Pages View PDF
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LTC2645
Typical Performance Characteristics (TA = 25°C, unless otherwise noted.)
LTC2645-10 (Internal Reference, VFS = 2.5V)
Integral Nonlinearity (INL)
1.0
VCC = 3V
tPER = 50µs
INTERNAL REFERENCE
0.5
Differential Nonlinearity (DNL)
1.0
VCC = 3V
tPER = 50µs
INTERNAL REFERENCE
0.5
0
0
–0.5
–0.5
–1.0
0
25
50
75
DUTY CYCLE (%)
100
2645 G08
LTC2645-8 (Internal Reference, VFS = 2.5V)
Integral Nonlinearity (INL)
1.0
VCC = 3V
tPER = 10µs
INTERNAL REFERENCE
0.5
–1.0
0
25
50
75
DUTY CYCLE (%)
100
2645 G09
Differential Nonlinearity (DNL)
1.0
VCC = 3V
tPER = 10µs
INTERNAL REFERENCE
0.5
0
0
–0.5
–0.5
–1.0
0
25
50
75
100
DUTY CYCLE (%)
–1.0
0
LTC2645
2645 G10
Load Regulation
10
VCC = 5V
8 VCC = 3V
6
4
2
Current Limiting
0.20
VCC = 5V
0.15 VCC = 3V
0.10
0.05
0
0
–2
–4
–6
–8
–10
–30 –20 –10
INTERNAL REF.
CODE = MID-SCALE
0 10 20 30
IOUT (mA)
2645 G12
–0.05
–0.10
–0.15
–0.20
–30 –20 –10
INTERNAL REF.
CODE = MID-SCALE
0 10 20 30
IOUT (mA)
2645 G13
25
50
75
DUTY CYCLE (%)
100
2645 G11
Offset Error vs Temperature
3
2
1
0
–1
–2
–3
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2645 G14
2645f
8
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