LMC6042IM National Semiconductor, LMC6042IM Datasheet

IC, OP-AMP, 100KHZ, 0.02V/µs, SOIC-8

LMC6042IM

Manufacturer Part Number
LMC6042IM
Description
IC, OP-AMP, 100KHZ, 0.02V/µs, SOIC-8
Manufacturer
National Semiconductor
Datasheet

Specifications of LMC6042IM

Op Amp Type
Low Power
No. Of Amplifiers
2
Bandwidth
100kHz
Slew Rate
0.02V/µs
Supply Voltage Range
4.5V To 15.5V
Amplifier Case Style
SOIC
No. Of Pins
8
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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© 2004 National Semiconductor Corporation
LMC6042
CMOS Dual Micropower Operational Amplifier
General Description
Ultra-low power consumption and low input-leakage current
are the hallmarks of the LMC6042. Providing input currents
of only 2 fA typical, the LMC6042 can operate from a single
supply, has output swing extending to each supply rail, and
an input voltage range that includes ground.
The LMC6042 is ideal for use in systems requiring ultra-low
power consumption. In addition, the insensitivity to latch-up,
high output drive, and output swing to ground without requir-
ing external pull-down resistors make it ideal for single-
supply battery-powered systems.
Other applications for the LMC6042 include bar code reader
amplifiers, magnetic and electric field detectors, and hand-
held electrometers.
This device is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.
See the LMC6041 for a single, and the LMC6044 for a quad
amplifier with these features.
Connection Diagram
Low-Power Two-Op-Amp Instrumental Amplifier
DS011137
8-Pin DIP/SO
Features
n Low supply current:
n Operates from 4.5V to 15V single supply
n Ultra low input current: 2 fA (typ)
n Rail-to-rail output swing
n Input common-mode range includes ground
Applications
n Battery monitoring and power conditioning
n Photodiode and infrared detector preamplifier
n Silicon based transducer systems
n Hand-held analytic instruments
n pH probe buffer amplifier
n Fire and smoke detection systems
n Charge amplifier for piezoelectric transducers
01113701
10 µA/Amp (typ)
01113713
www.national.com
August 2000

Related parts for LMC6042IM

LMC6042IM Summary of contents

Page 1

... Silicon-Gate CMOS process. See the LMC6041 for a single, and the LMC6044 for a quad amplifier with these features. Connection Diagram Low-Power Two-Op-Amp Instrumental Amplifier © 2004 National Semiconductor Corporation Features n Low supply current: n Operates from 4.5V to 15V single supply n Ultra low input current (typ) ...

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 (V − Output Short Circuit to V − Output Short Circuit to V Lead Temperature (Soldering, 10 seconds) Current at Input Pin ...

Page 3

Electrical Characteristics Unless otherwise spec ified, all limits guaranteed for T − 1.5V and Symbol Parameter V Output Swing ...

Page 4

AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T − 1.5V and Symbol Parameter T.H.D. Total Harmonic Distortion Note 1: Absolute Maximum Ratings indicate ...

Page 5

Typical Performance Characteristics Input Bias Current vs Temperature Input Bias Current Voltage Range vs Temperature Output Characteristics Current Sourcing ± 7.5V 25˚C unless otherwise specified (Continued Input Common-Mode 01113721 Output Characteristics 01113723 01113725 ...

Page 6

Typical Performance Characteristics Crosstalk Rejection vs Frequency CMRR vs Temperature Open-Loop Voltage Gain vs Temperature www.national.com ± 7.5V 25˚C unless otherwise specified (Continued 01113727 Power Supply Rejection 01113729 01113731 6 CMRR vs Frequency 01113728 ...

Page 7

Typical Performance Characteristics Gain and Phase Responses vs Load Capacitance Gain Error ( OUT Non-Inverting Slew Rate vs Temperature ± 7.5V 25˚C unless otherwise specified (Continued 01113733 Common-Mode Error vs ...

Page 8

Typical Performance Characteristics Non-Inverting Large Signal Pulse Response (A = +1) V Inverting Large-Signal Pulse Response Stability vs Capacitive Load www.national.com ± 7.5V 25˚C unless otherwise specified (Continued Signal Pulse Response 01113739 01113741 Stability ...

Page 9

Applications Hints AMPLIFIER TOPOLOGY The LMC6042 incorporates a novel op-amp design topology that enables it to maintain rail-to-rail output swing even when driving a large load. Instead of relying on a push-pull unity gain output buffer stage, the output stage ...

Page 10

Applications Hints (Continued) simple. First, the user must not ignore the surface leakage of the PC board, even though it may sometimes appear accept- ably low, because under conditions of high humidity or dust or contamination, the surface leakage will ...

Page 11

Applications Hints (Continued) 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 is another technique which is even better than a guard ring on ...

Page 12

Typical Single-Supply Applications www.national.com + ( (Continued) DC FIGURE 8. Low-Power Two-Op-Amp Instrumentation Amplifier FIGURE 9. Low-Leakage Sample and Hold FIGURE 10. Instrumentation Amplifier 12 01113713 01113714 01113715 ...

Page 13

... Typical Single-Supply Applications Ordering Information Package 8-Pin Small Outline LMC6042IM, LMC6042IMX 8-Pin Molded DIP + ( (Continued) DC FIGURE 11 Square Wave Oscillator FIGURE 12. AC Coupled Power Amplifier Temperature Range NSC Industrial Drawing −40˚C to +85˚C LMC6042AIM, LMC6042AIMX M08A LMC6042AIN N08E LMC6042IN 13 01113716 ...

Page 14

... Physical Dimensions unless otherwise noted Order Number LMC6042AIM, LMC6042AIMX, LMC6042IM or LMC6042IMX www.national.com inches (millimeters) 8-Pin Small Outline Package NS Package Number M08A 8-Pin Molded Dual-In-Line Package Order Number LMC6042AIN or LMC6042IN NS Package Number N08E 14 ...

Page 15

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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