LT1819 データシートの表示（PDF） - Linear Technology
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LT1819 Datasheet PDF : 18 Pages
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LT1818/LT1819
ELECTRICAL CHARACTERISTICS
Note 5: With ±5V supplies, slew rate is tested in a closed-loop gain of –1
by measuring the rise time of the output from –2V to 2V with an output
step from –3V to 3V. With single 5V supplies, slew rate is tested in a
closed-loop gain of –1 by measuring the rise time of the output from 1.5V
to 3.5V with an output step from 1V to 4V. Falling edge slew rate is not
production tested, but is designed, characterized and expected to be within
10% of the rising edge slew rate.
Note 6: Full-power bandwidth is calculated from the slew rate:
FPBW = SR/2πVP
Note 7: This parameter is not 100% tested.
Note 8: The LT1818C/LT1818I and LT1819C/LT1819I are guaranteed
functional over the operating temperature range of –40°C to 85°C.
Note 9: The LT1818C/LT1819C are guaranteed to meet specified
performance from 0°C to 70°C and is designed, characterized and
expected to meet the extended temperature limits, but is not tested
at –40°C and 85°C. The LT1818I/LT1819I are guaranteed to meet the
extended temperature limits.
Note 10: Thermal resistance (θJA) varies with the amount of PC board
metal connected to the package. The specified values are for short
traces connected to the leads. If desired, the thermal resistance can be
significantly reduced by connecting the V– pin to a large metal area.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Temperature
12
PER AMPLIFIER
10
VS = ±5V
8
VS = ±2.5V
6
4
2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
18189 G01
Input Bias Current vs Temperature
0
VCM = 0V
–0.4
–0.8
–1.2
–1.6
VS = ±5V
–2.0
VS = ±2.5V
–2.4
–2.8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
18189 G04
Input Common Mode Range
vs Supply Current
V+
TA = 25°C
–0.5 $VOS < 1mV
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
V–
0
1 2 34 5 6 7
SUPPLY VOLTAGE (±V)
18189 G02
Input Noise Spectral Density
100
10
TA = 25°C
VS = ±5V
AV = 101
RS = 10k
in
10
1
en
1
0.1
10
100
1k
10k
100k
FREQUENCY (Hz)
18189 G05
Input Bias Current vs Common
Mode Voltage
2
TA = 25°C
VS = ±5V
0
–2
–4
–6
–8
–5
–2.5
0
2.5
5
INPUT COMMON MODE VOLTAGE (V)
18189 G03
Open-Loop Gain vs Resistive Load
80
TA = 25°C
77
74
71
68
65
62
100
VS = ±5V
VS = ±2.5V
1k
LOAD RESISTANCE (Ω)
10k
18189 G06
18189fb
6
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