LTC1199 查看數據表（PDF） - Linear Technology
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LTC1199 Datasheet PDF : 28 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1197/LTC1197L
LTC1199/LTC1199L
Linearity vs Temperature
0.5
VCC = 5V
VREF = 5V
0.4 fCLK = 7.2MHz
0.3
0.2
0.1
0
–55 – 30 – 5 20 45 70
TEMPERATURE (°C)
95 120
1197/99 G19
Minimum Clock Frequency for
0.1LSB Error* vs Temperature
1000
VREF = 5V
VCC = 5V
100
10
1
Offset vs Temperature
0
– 0.1 VCC = 5V
VREF = 5V
– 0.2 fCLK = 7.2MHz
– 0.3
– 0.4
– 0.5
– 0.6
– 0.7
– 0.8
– 0.9
– 1.0
–55 – 30 – 5 20 45 70
TEMPERATURE (°C)
Digital Input Threshold
vs Supply Voltage
5
TA = 25°C
95 120
1197/99 G20
4
3
2
1
Gain Error vs Temperature
0
VCC = 5V
– 0.2 VREF = 5V
fCLK = 7.2MHz
– 0.4
– 0.6
– 0.8
– 1.0
– 1.2
– 1.4
–55 – 30 – 5 20 45 70
TEMPERATURE (°C)
95 120
1197/99 G21
Input Channel Leakage Current
vs Temperature
100
VREF = 5V
VCC = 5V
10
ON CHANNEL
1
OFF CHANNEL
0.1
0.01
0.1
– 55 – 35 – 15 5 25 45 65 85 105 125
TEMPERATURE (°C)
0
0.001
0
2
4
6
8
10
0
25
50
75 100 125
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
Acquisition Time
vs Source Resistance
1197/99 G22
1197/99 G23
Maximum Clock Frequency
vs Supply Voltage
1197/99 G24
Maximum Clock Frequency†
vs Source Resistance
100
VCC = VREF = 5V
TA = 25°C
11
10
VREF = 2.5V
TA = 25°C
9
10000
VREF = VCC = 5V
TA = 25°C
8
10
RSOURCE+
7
VIN
+ INPUT
6
COM
5
1000
1
4
3
2
1
VIN
+ INPUT
– INPUT
RSOURCE–
0.1
100
1000
SOURCE RESISTANCE (Ω)
10000
0
0 1 2 3 4 5 6 7 8 9 10
SUPPLY VOLTAGE (V)
100
100
1000
SOURCE RESISTANCE (Ω)
10000
1197/99 G25
1197/99 G26
1197/99 G27
*As the CLK frequency is decreased from 2MHz, minimum CLK frequency (∆error ≤ 0.1LSB)
represents the frequency at which a 0.1LSB shift in any code translation from its 2MHz value
is first detected.
† Maximum CLK frequency represents the clock frequency at which a 0.1LSB shift in the error
at any code transition from its 3.5MHz value is first detected.
9
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