LMC7101(1999) データシートの表示（PDF） - Micrel
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LMC7101 Datasheet PDF : 12 Pages
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LMC7101
Typical Circuits
Some single-supply, rail-to-rail applications for which the
LMC7101 is well suited are shown in the circuit diagrams of
Figures 3 through 7.
V+
VIN
3
0V to V +
AV 4
2 LMC7101
1
5
VOUT
0V to V+
R2
R1 900k
100k
Figure 3a. Noninverting Amplifier
1V0+0
AV
=
1+
R2
R1
≈
10
0
0
VIN (V)
100
Figure 3b. Noninverting Amplifier Behavior
V+
VIN
3
0V to V+
4
2 LMC7101
1
5
VOUT
0V to V+
VOUT = VIN
Figure 4. Voltage Follower
Micrel
VS
0.5V to Q1 VCEO(sus)
VOUT
V+
0V to V+
VIN
3
0V to 2V
2 LMC7101
IOUT
1
4
5
{ Q1
2N3904
VCEO = 40V
IC(max) = 200mA
RS
Change Q1 and RS
for higher current
10Ω
1⁄2W
and/or different gain.
IOUT
=
VIN
RS
= 100mA/V
as
shown
Figure 5. Voltage-Controlled Current Sink
C1
0.001µF
R4
100k
V+
4
2 LMC7101
1
3
5
VOUT
V+
0V
R2
V+
100k
R4
R3 100k
100k
Figure 6. Square Wave Oscillator
CIN R1
33k
R2
330k
V+
4
2 LMC7101
1
COUT
VOUT
3
5
0V
RL
R3
V+
330k
R4
330k
C1
1µF
AV
=
−
R2
R1
=
330k
33k
=
−10
Figure 7. AC-Coupled Inverting Amplifier
LMC7101
10
September 1999
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