LMC660EM National Semiconductor, LMC660EM Datasheet

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LMC660EM

Manufacturer Part Number
LMC660EM
Description
Manufacturer
National Semiconductor
Datasheet
© 2000 National Semiconductor Corporation
LMC660
CMOS Quad Operational Amplifier
General Description
The LMC660 CMOS Quad operational amplifier is ideal for
operation from a single supply. It operates from +5V to +15V
and features rail-to-rail output swing in addition to an input
common-mode range that includes ground. Performance
limitations that have plagued CMOS amplifiers in the past
are not a problem with this design. Input V
broadband noise as well as voltage gain into realistic loads
(2 k
cepted bipolar equivalents.
This chip is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.
See the LMC662 datasheet for a dual CMOS operational
amplifier with these same features.
Features
n Rail-to-rail output swing
n Specified for 2 k
n High voltage gain:
n Low input offset voltage: 3 mV
n Low offset voltage drift: 1.3 µV/˚C
Connection Diagram
and 600 ) are all equal to or better than widely ac-
and 600
14-Pin DIP/SO
126 dB
loads
DS008767
OS
DS008767-1
, drift, and
n Ultra low input bias current: 2 fA
n Input common-mode range includes V
n Operating range from +5V to +15V supply
n I
n Low distortion: 0.01% at 10 kHz
n Slew rate: 1.1 V/µs
n Available in extended temperature range (−40˚C to
n Available to Standard Military Drawing specification
Applications
n High-impedance buffer or preamplifier
n Precision current-to-voltage converter
n Long-term integrator
n Sample-and-Hold circuit
n Peak detector
n Medical instrumentation
n Industrial controls
n Automotive sensors
+125˚C); ideal for automotive applications
SS
= 375 µA/amplifier; independent of V
LMC660 Circuit Topology (Each Amplifier)
+
DS008767-4
www.national.com
August 2000

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LMC660EM Summary of contents

Page 1

... Low input offset voltage Low offset voltage drift: 1.3 µV/˚C Connection Diagram 14-Pin DIP/SO © 2000 National Semiconductor Corporation n Ultra low input bias current Input common-mode range includes V n Operating range from +5V to +15V supply 375 µA/amplifier; independent Low distortion: 0 ...

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 Supply Voltage + Output Short Circuit to V − Output Short Circuit to V Lead Temperature (Soldering, 10 sec.) Storage Temp. Range ...

Page 3

DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T − 1.5V 2.5V and Parameter Conditions + Output Swing ...

Page 4

AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T − 1.5V 2.5V and Parameter Total Harmonic Distortion Note 1: Applies to both single supply and split supply ...

Page 5

Typical Performance Characteristics CMRR vs Frequency DS008767-30 Non-Inverting Large Signal Pulse Response DS008767-33 Note: Avoid resistive loads of less than 500 , as they may cause instability. Application Hints Amplifier Topology The topology chosen for the LMC660, shown in Figure ...

Page 6

Application Hints (Continued) Every amplifier has some capacitance between each input and AC ground, and also some differential capacitance be- tween the inputs. When the feedback network around an amplifier is resistive, this input capacitance (along with any additional capacitance ...

Page 7

Application Hints (Continued) FIGURE 3. Rx, Cx Improve Capacitive Load Tolerance Capacitive load driving capability is enhanced by using a pull + up resistor Figure 4 ). Typically a pull up resistor con- ducting 500 µA or ...

Page 8

Application Hints (Continued) (a) Inverting Amplifier (b) Non-Inverting Amplifier (c) Follower (d) Howland Current Pump FIGURE 6. Guard Ring Connections The designer should be aware that when it is inappropriate to lay out a PC board for the sake of ...

Page 9

Typical Single-Supply Applications Additional single-supply applications ideas can be found in the LM324 datasheet. The LMC660 is pin-for-pin compatible with the LM324 and offers greater bandwidth and input resis- tance over the LM324. These features will improve the per- formance ...

Page 10

Typical Single-Supply Applications ( 5.0 VDC) (Continued Bandpass Filter 2.1 Gain = −8 High-Pass Filter 0.895 Gain = 1 2 ...

Page 11

Physical Dimensions inches (millimeters) unless otherwise noted Order Number LMC660AIM, LMC660CM or LMC660AIMX Order Number LMC660AIN, LMC660CN or LMC660CNX Small Outline Dual-In-Line Pkg. (M) NS Package Number M14A Molded Dual-In-Line Pkg. (N) NS Package Number N14A 11 www.national.com ...

Page 12

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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