LTC1285CN8-PBF Ver la hoja de datos (PDF) - Linear Technology
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LTC1285CN8-PBF Datasheet PDF : 24 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LTC1285/LTC1288
Reference Current vs
Sample Rate (LTC1285)
50
45
TA = 25°C
VCC = 2.7V
40
VREF = 2.5V
fCLK = 120kHz
35
30
25
20
15
10
5
0
01 2 34 56 7 8
SAMPLE RATE (kHz)
LTC1285/88 • TPC04
Change in Offset vs Temperature
0.20
VCC = 2.7V
0.15 VREF = 2.5V
fCLK = 120kHz
0.10 fSMPL = fSMPL(MAX)
0.05
0
– 0.05
– 0.10
– 0.15
– 0.20
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
LTC1285/88 • TPC07
Reference Current vs Temperature
53
52
VCC = 2.7V
VREF = 2.5V
51
fCLK = 120kHz
fSMPL = 7.5kHz
50
49
48
47
46
45
44
43
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
LTC1285/88 • TPC05
Change in Linearity
vs Reference Voltage
0.50
0.45
TA = 25°C
VCC = 2.7V
0.40 fCLK = 120kHz
fSMPL = 7.5kHz
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
REFERENCE VOLTAGE (V)
LTC1285/88 • TPC08
Change in Offset
vs Reference Voltage
3.0
TA = 25°C
VCC = 2.7V
2.5 fCLK = 120kHz
fSMPL = 7.5kHz
2.0
1.5
1.0
0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
REFERENCE VOLTAGE (V)
LTC1285/88 • TPC06
Change in Gain
vs Reference Voltage
–10
–9
TA = 25°C
VCC = 2.7V
– 8 fCLK = 120kHz
fSMPL = 7.5kHz
–7
–6
–5
–4
–3
–2
–1
0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
REFERENCE VOLTAGE (V)
LTC1285/88 • TPC09
Differential Nonlinearity vs Code
1
TA = 25°C
VCC = 2.7V
VREF = 2.5V
0.5 fCLK = 120kHz
0
– 0.5
–1
0 512 1024 1536 2048 2560 3072 3584 4096
CODE
LTC1285/88 • TPC11
Effective Bits and S/(N + D)
vs Input Frequency
12
74
11
68
10
62
9
56
8
50
7
6
5
4
3
2 TA = 25°C
1
VCC = 2.7V
fCLK = 120kHz
0
1
10
100
INPUT FREQUENCY (kHz)
LTC1285/88 • TPC12
5
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