MIC7111YM5 MICREL [Micrel Semiconductor], MIC7111YM5 Datasheet - Page 7

• Manufacturer Part Number: MIC7111YM5
• Description: 1.8V IttyBitty Rail-to-Rail Input/Output Op Amp
• Manufacturer: MICREL [Micrel Semiconductor]

change when changing from a breadboard to the final circuit
layout.
Typical Circuits
Some single-supply, rail-to-rail applications for which the
MIC7111 is well suited are shown in the circuit diagrams of
Figures 3 through 7.
January 2005
MIC7111
Figure 3b. Noninverting Amplifier Behavior
Figure 3a. Noninverting Amplifier
Figure 4. Voltage Follower/Buffer
0V to
0V to V+
V
100
V+
IN
V
0
IN
0
V +
A
V
3
4
1.8V to 10V
3
4
R1
100k
1.8V to 10V
A
V+
910k
V+
V
V
R2
2
5
IN
= +
2
5
1
(V)
MIC7111
MIC7111
R2
R1
1
1
≈ 10
V
OUT
0V to V+
100
0V to V+
V
= V
V
OUT
OUT
IN
7
0V to 2V
V
IN
0.001µF
V+
Figure 5. Voltage-Controlled Current Sink
Figure 7. AC-Coupled Inverting Amplifier
C
IN
V+
Change Q1 and R
for higher current
and/or different gain.
I
33k
OUT
C1
R1
330k
Figure 6. Square Wave Oscillator
R3
3
4
1.8V to 10V
100k
R2
=
V+
V
R
4
3
IN
2
5
C1
1µF
S
MIC7111
4
3
R3
100k
=
330k
R2
100mA/V as shown
V+
0.5V to Q1 V
1
2
5
100k
100k
330k
R4
R4
S
V+
R4
MIC7111
2
5
1
MIC7111
V
A
S
1
R
10Ω
1
V
⁄
Q1
2N3904
I
2
OUT
S
CEO(sus)
W
= −
0V to V+
C
R2
R1
OUT
V
V+
R
0V
OUT
{
=
L
V
I
C(max)
CEO
330k
33k
V
V
0V
OUT
OUT
= 40V
= 200mA
= −
MIC7111
10
Micrel