LTC1290C 查看數據表（PDF） - Linear Technology
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LTC1290C Datasheet PDF : 32 Pages
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LTC1290
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
26
ACLK = 4MHz
22 TA = 25°C
18
14
10
6
2
4
6
8
10
SUPPLY VOLTAGE, VCC (V)
1290 • TPC01
Change in Linearity vs Reference
Voltage
1.25
VCC = 5V
1.00
0.75
Supply Current vs Temperature
10
ACLK = 4MHz
9 VCC = 5V
8
7
6
5
4
3
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE, TA (°C)
LT1290 • TPC02
Change in Gain vs Reference
Voltage
0
– 0.1
– 0.2
Unadjusted Offset Voltage vs
Reference Voltage
0.9
VCC = 5V
0.8
0.7
0.6
0.5
VOS = 0.25mV
0.4
0.3
VOS = 0.125mV
0.2
0.1
1
2
3
4
5
REFERENCE VOLTAGE, VREF (V)
1290 • TPC03
Change in Offset vs Temperature
0.5
ACLK = 4MHz
VCC = 5V
0.4 VREF = 5V
0.3
0.50
–0.3
0.2
0.25
0
0
1
2
3
4
5
REFERENCE VOLTAGE, VREF (V)
1290 • TPC04
Change in Linearity Error vs
Temperature
0.6
ACLK = 4MHz
0.5 VCC = 5V
VREF = 5V
0.4
0.3
0.2
0.1
0
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE, TA (°C)
1290 • TPC07
–0.4
VCC = 5V
–0.5
1
2
3
4
5
REFERENCE VOLTAGE, VREF (V)
1290 • TPC05
Change in Gain Error vs
Temperature
0.5
ACLK = 4MHz
VCC = 5V
0.4 VREF = 5V
0.3
0.2
0.1
0
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE, TA (°C)
1290 • TPC08
6
0.1
0
–50 –30 –10 10 30 50 70 90 110 130
AMBIENT TEMPERATURE, TA (°C)
1290 • TPC06
Maximum ACLK Frequency vs
Source Resistance
5
VCC = 5V
VREF = 5V
4
TA = 25°C
3
VIN
+ INPUT
RSOURCE–
– INPUT
2
1
0
100
1k
10 k
100k
RSOURCE (Ω)
1290 • TPC09
* MAXIMUM ACLK FREQUENCY REPRESENTS THE
ACLK FREQUENCY AT WHICH A 0.1LSB SHIFT IN
THE ERROR AT ANY CODE TRANSITION FROM ITS
4MHz VALUE IS FIRST DETECTED.
1290fe
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