LMC6035/LMC6036

Low Power 2.7V Single Supply CMOS Operational

Amplifiers

General Description

The LMC6035/6 is an economical, low voltage op amp ca-

pable of rail-to-rail output swing into loads of 600

Ω.

LMC6035 is available in a chip sized package (8-Bump

micro SMD) using National’s micro SMD package technol-

ogy. Both allow for single supply operation and are guaran-

teed for 2.7V, 3V, 5V and 15V supply voltage. The 2.7 supply

voltage corresponds to the End-of-Life voltage (0.9V/cell) for

three NiCd or NiMH batteries in series, making the

LMC6035/6 well suited for portable and rechargeable sys-

tems. It also features a well behaved decrease in its speci-

fications at supply voltages below its guaranteed 2.7V op-

eration. This provides a “comfort zone” for adequate

operation at voltages significantly below 2.7V. Its ultra low

input currents (I

filter application, because it allows the use of higher resistor

values and lower capacitor values. In addition, the drive

capability of the LMC6035/6 gives these op amps a broad

range of applications for low voltage systems.

Features

(Typical Unless Otherwise Noted)

n

LMC6035 in micro SMD Package

n

Guaranteed 2.7V, 3V, 5V and 15V Performance

n

Specified for 2 k

Ω and 600Ω Loads

n

Wide Operating Range:

2.0V to 15.5V

n

Ultra Low Input Current:

20fA

n

Rail-to-Rail Output Swing

Ω: 200mV from either rail at 2.7V

Ω: 5mV from either rail at 2.7V

n

High Voltage Gain:

126dB

n

Wide Input Common-Mode Voltage Range

-0.1V to 2.3V at V

n

Low Distortion:

0.01% at 10kHz

n

LMC6035 Dual LMC6036 Quad

n

See AN-1112 for micro SMD considerations

Applications

n

Filters

n

High Impedance Buffer or Preamplifier

n

Battery Powered Electronics

n

Medical Instrumentation

Connection Diagram

8-Bump microSMD

01283065

Top View

(Bump Side Down)

microSMD Connection Table

Bump Number

LM6035IBP

LMC6035IBPX

LMC6035ITL

LMC6035ITLX

A1

OUTPUT A

OUTPUT B

B1

IN A

−

V

+

C1

IN A

+

OUTPUT A

C2

V

−

IN A

−

C3

IN B

+

IN A

+

B3

IN B

−

V

−

A3

OUTPUT B

IN B

+

A2

V

+

IN B

−

October 2002

© 2002 National Semiconductor Corporation

DS012830

www.national.com