lmc6081imx National Semiconductor Corporation, lmc6081imx Datasheet

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lmc6081imx

Manufacturer Part Number
lmc6081imx
Description
Precision Cmos Single Operational Amplifier
Manufacturer
National Semiconductor Corporation
Datasheet

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© 2004 National Semiconductor Corporation
LMC6081
Precision CMOS Single Operational Amplifier
General Description
The LMC6081 is a precision low offset voltage operational
amplifier, capable of single supply operation. Performance
characteristics include ultra low input bias current, high volt-
age gain, rail-to-rail output swing, and an input common
mode voltage range that includes ground. These features,
plus its low offset voltage, make the LMC6081 ideally suited
for precision circuit applications.
Other applications using the LMC6081 include precision full-
wave rectifiers, integrators, references, and sample-and-
hold circuits.
This device is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.
For designs with more critical power demands, see the
LMC6061 precision micropower operational amplifier.
For a dual or quad operational amplifier with similar features,
see the LMC6082 or LMC6084 respectively.
PATENT PENDING
Connection Diagram
8-Pin DIP/SO
Top View
DS011423
01142301
Features
(Typical unless otherwise stated)
n Low offset voltage:
n Operates from 4.5V to 15V single supply
n Ultra low input bias current: 10 fA
n Output swing to within 20 mV of supply rail, 100k load
n Input common-mode range includes V
n High voltage gain: 130 dB
n Improved latchup immunity
Applications
n Instrumentation amplifier
n Photodiode and infrared detector preamplifier
n Transducer amplifiers
n Medical instrumentation
n D/A converter
n Charge amplifier for piezoelectric transducers
Low-Leakage Sample and Hold
150 µV
www.national.com
August 2000
01142312

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lmc6081imx Summary of contents

Page 1

... For a dual or quad operational amplifier with similar features, see the LMC6082 or LMC6084 respectively. PATENT PENDING Connection Diagram 8-Pin DIP/SO Top View © 2004 National Semiconductor Corporation Features (Typical unless otherwise stated) n Low offset voltage: n Operates from 4.5V to 15V single supply n Ultra low input bias current ...

Page 2

Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Differential Input Voltage Voltage at Input/Output Pin + − Supply Voltage (V − Output Short Circuit ...

Page 3

DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for 1.5V 2.5V and Symbol Parameter V Output Swing Output ...

Page 4

AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for 1.5V 2.5V and Symbol Parameter SR Slew Rate GBW Gain-Bandwidth Product φ Phase Margin m e Input-Referred n Voltage Noise ...

Page 5

Typical Performance Characteristics specified (Continued) Distribution of LMC6081 Input Offset Voltage (T = +125˚C) A Supply Current vs Supply Voltage Common Mode Rejection Ratio vs Frequency ± 7.5V 25˚C, Unless otherwise S A 01142317 01142319 01142321 ...

Page 6

Typical Performance Characteristics specified (Continued) Input Voltage Noise vs Frequency Output Characteristics Sinking Current Gain and Phase Response vs Capacitive Load with R = 600Ω L www.national.com ± 7.5V 25˚C, Unless otherwise S A Output Characteristics ...

Page 7

Typical Performance Characteristics specified (Continued) Open Loop Frequency Response Inverting Large Signal Pulse Response Non-Inverting Large Signal Pulse Response ± 7.5V 25˚C, Unless otherwise S A 01142329 01142331 01142333 7 Inverting Small Signal Pulse Response 01142330 ...

Page 8

Typical Performance Characteristics specified (Continued) Stability vs Capacitive Load MΩ L Applications Hints AMPLIFIER TOPOLOGY The LMC6081 incorporates a novel op-amp design topology that enables it to maintain rail-to-rail output swing even when driving a large load. ...

Page 9

Applications Hints (Continued) FIGURE 2. LMC6081 Noninverting Gain of 10 Amplifier, Compensated to Handle Capacitive Loads In the circuit of Figure 2, R1 and C1 serve to counteract the loss of phase margin by feeding the high frequency compo- nent ...

Page 10

Applications Hints (Continued) Inverting Amplifier Non-Inverting Amplifier Follower FIGURE 5. Typical Connections of Guard Rings The designer should be aware that when it is inappropriate to lay out a PC board for the sake of just a few circuits, there ...

Page 11

Typical Single-Supply Applications (Continued and then ≈ 100 for circuit shown ( 9.822k FIGURE 7. Instrumentation Amplifier ...

Page 12

... Molded DIP 8-Pin Small Outline www.national.com FIGURE Square Wave Oscillator Temperature Range Industrial −40˚C to +85˚C LMC6081AIN LMC6081IN LMC6081AIM, LMC6081AIMX LMC6081IM, LMC6081IMX 12 01142313 NSC Transport Drawing Media N08E Rail M08A Rail Tape and Reel ...

Page 13

... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LMC6081AIM, LMC6081AIMX, LMC6081IM or LMC6081IMX 8-Pin Small Outline Package NS Package Number M08A 8-Pin Molded Dual-In-Line Package Order Number LMC6081AIN or LMC6081IN NS Package Number N08E 13 www.national.com ...

Page 14

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information ...

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