LMC7101AIM5 datasheet(10/12 Pages) MICREL

10 / 12 page

LMC7101

Micrel

LMC7101

September 1999

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.

900k

100k

VOUT

0V to V+

V+

VIN

LMC7101

0V to

V+

Figure 3a. Noninverting Amplifier

100

IN (V)

V+

= 1 +

≈

Figure 3b. Noninverting Amplifier Behavior

VOUT

0V to V+

V+

VIN

0V to V+

LMC7101

VOUT = VIN

Figure 4. Voltage Follower

VOUT

0V to V+

V+

VIN

0V to 2V

LMC7101

Ω

1⁄2W

0.5V to Q1 VCEO(sus)

IOUT

2N3904

VCEO = 40V

IC(max) = 200mA

{

Change Q1 and RS

for higher current

and/or different gain.

100mA/V as shown

OUT

Figure 5. Voltage-Controlled Current Sink

V+

100k

VOUT

V+

LMC7101

0.001µF

100k

V+

Figure 6. Square Wave Oscillator

330k

33k

330k

1µF

VOUT

V+

LMC7101

CIN

V+

COUT

330k

33k

V =−

= −

Figure 7. AC-Coupled Inverting Amplifier

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