LTC6800 データシートの表示（PDF） - Linear Technology
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LTC6800 Datasheet PDF : 14 Pages
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LTC6800
Electrical Characteristics
Note 3: If the total source resistance is less than 10k, no DC errors result
from the input bias currents or the mismatch of the input bias currents or
the mismatch of the resistances connected to –IN and +IN.
Note 4: The CMRR with a voltage gain, AV, larger than 10 is 120dB (typ).
Note 5: At temperatures above 70°C, the common mode rejection ratio
lowers when the common mode input voltage is within 100mV of the
supply rails.
Note 6: The power supply rejection ratio (PSRR) measurement accuracy
depends on the proximity of the power supply bypass capacitor to the
device under test. Because of this, the PSRR is 100% tested to relaxed
limits at final test. However, their values are guaranteed by design to meet
the data sheet limits.
Note 7: The LTC6800H is guaranteed functional over the operating
temperature range of –40°C to 125°C. Specifications over the –40°C to
125°C range (denoted by l) are assured by design and characterization
but are not tested or QA sampled at these temperatures.
Typical Performance Characteristics
Input Offset Voltage vs Input
Common Mode Voltage
15
VS = 3V
VREF = 0V
10 TA = 25°C
5
0
–5
–10
–15
0
G = 1000
G = 100
G = 10
G=1
0.5 1.0 1.5 2.0 2.5 3.0
INPUT COMMON MODE VOLTAGE (V)
6800 G01
Input Offset Voltage vs Input
Common Mode Voltage
20
VS = 5V
15 VREF = 0V
G = 10
10
5
0
TA = 70°C
–5
TA = 25°C
–10
–15
–20
0
TA = –55°C
1
2
3
4
5
INPUT COMMON MODE VOLTAGE (V)
6800 G04
Input Offset Voltage vs Input
Common Mode Voltage
15
VS = 5V
VREF = 0V
10 TA = 25°C
G = 1000
5
0
–5
G = 100
G = 10
G=1
–10
–15
0
1
2
3
4
5
INPUT COMMON MODE VOLTAGE (V)
2053 G02
Input Offset Voltage vs Input
Common Mode Voltage,
85°C ≤ TA ≤ 125°C
60
VS = 3V
VREF = 0V
40 G = 10
20
0
TA = 85°C
–20
–40
TA = 125°C
–60
0
0.5 1.0 1.5 2.0 2.5 3.0
INPUT COMMON MODE VOLTAGE (V)
6800 G05
Input Offset Voltage vs Input
Common Mode Voltage
20
VS = 3V
15 VREF = 0V
G = 10
10
5
0
–5
TA = 25°C
–10
TA = 70°C
–15
TA = –55°C
–20
0
0.5 1.0 1.5 2.0 2.5 3.0
INPUT COMMON MODE VOLTAGE (V)
6800 G03
Input Offset Voltage vs Input
Common Mode Voltage,
85°C ≤ TA ≤ 125°C
60
VS = 5V
VREF = 0V
40 G = 10
20
0
TA = 85°C
–20
–40
TA = 125°C
–60
0
1
2
3
4
5
INPUT COMMON MODE VOLTAGE (V)
6800 G06
6800fb
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