LMC6001AIH NSC [National Semiconductor], LMC6001AIH Datasheet

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LMC6001AIH

Manufacturer Part Number
LMC6001AIH
Description
Ultra Ultra-Low Input Current Amplifier
Manufacturer
NSC [National Semiconductor]
Datasheet
© 1999 National Semiconductor Corporation
LMC6001
Ultra Ultra-Low Input Current Amplifier
General Description
Featuring 100% tested input currents of 25 fA max., low op-
erating power, and ESD protection of 2000V, the LMC6001
achieves a new industry benchmark for low input current op-
erational amplifiers. By tightly controlling the molding com-
pound, National is able to offer this ultra-low input current in
a lower cost molded package.
To avoid long turn-on settling times common in other low in-
put current opamps, the LMC6001A is tested 3 times in the
first minute of operation. Even units that meet the 25 fA limit
are rejected if they drift.
Because of the ultra-low input current noise of 0.13 fA/ Hz,
the LMC6001 can provide almost noiseless amplification of
high resistance signal sources. Adding only 1 dB at 100 k ,
0.1 dB at 1 M and 0.01 dB or less from 10 M to 2,000 M ,
the LMC6001 is an almost noiseless amplifier.
The LMC6001 is ideally suited for electrometer applications
requiring ultra-low input leakage such as sensitive photode-
tection transimpedance amplifiers and sensor amplifiers.
Since input referred noise is only 22 nV/ Hz, the LMC6001
Connection Diagrams
8-Pin DIP
Top View
DS011887
DS011887-1
can achieve higher signal to noise ratio than JFET input type
electrometer amplifiers. Other applications of the LMC6001
include long interval integrators, ultra-high input impedance
instrumentation amplifiers, and sensitive electrical-field mea-
surement circuits.
Features
(Max limit, 25˚C unless otherwise noted)
n Input current (100% tested): 25 fA
n Input current over temp.: 2 pA
n Low power: 750 µA
n Low V
n Low noise: 22 nV/ Hz
Applications
n Electrometer amplifier
n Photodiode preamplifier
n Ion detector
n A.T.E. leakage testing
OS
: 350 µV
8-Pin Metal Can
Top View
@
1 kHz Typ.
www.national.com
March 1995
DS011887-2

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LMC6001AIH Summary of contents

Page 1

LMC6001 Ultra Ultra-Low Input Current Amplifier General Description Featuring 100% tested input currents max., low op- erating power, and ESD protection of 2000V, the LMC6001 achieves a new industry benchmark for low input current op- erational amplifiers. ...

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... Ordering Information Package 8-Pin Molded DIP 8-Pin Metal Can www.national.com Industrial Temperature Range NSC Package −40˚C to +85˚C LMC6001AIN, LMC6001BIN, LMC6001CIN LMC6001AIH, LMC6001BIH 2 Drawing N08E H08C ...

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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 ( 0.3V − Supply Voltage (V − ...

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DC Electrical Characteristics Limits in standard typeface guaranteed for T + − 0V, V otherwise specified, V Symbol Parameter I Output Current Sourcing Sinking Sourcing Sinking, ...

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AC Electrical Characteristics Limits in standard typeface guaranteed for 5V, V − = 0V, V otherwise specified, V Symbol Parameter SR Slew Rate GBW Gain-Bandwidth Product f Phase Margin m G Gain Margin M e Input-Referred Voltage ...

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Typical Performance Characteristics Input Current vs Temperature DS011887-16 Input Voltage vs Output Voltage DS011887-19 Input Voltage Noise vs Frequency DS011887-22 www.national.com = ± = 25˚C, unless otherwise specified V 7.5V Input Current = ± ...

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Typical Performance Characteristics specified (Continued) Output Characteristics Sinking Current DS011887-25 Open Loop Frequency Response DS011887-28 Non-Inverting Small Signal Pulse Response DS011887-31 Applications Hints AMPLIFIER TOPOLOGY The LMC6001 incorporates a novel op-amp design topology that enables it to maintain rail-to-rail output ...

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Applications Hints (Continued) Although the LMC6001 is highly stable over a wide range of operating conditions, certain precautions must be met to achieve the desired pulse response when a large feedback resistor is used. Large feedback resistors with even small ...

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Applications Hints (Continued) ure have a significant effect, guard rings should be placed on both the top and bottom of the PC board. This PC foil must then be connected to a voltage which is at the ...

Page 10

Two Opamp, Temperature Compensated pH Probe Amplifier (Continued) the feedback loop. This cancels the temperature depen- dence of the probe. This resistor must be mounted where it will be at the same temperature as the liquid being mea- sured. The ...

Page 11

Ultra-Low Input Current Instrumentation Amplifier = and R ; then 9.85k). A 100 for circuit shown ( (Continued) FIGURE 8. Instrumentation ...

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12 ...

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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LMC6001AIH or LMC6001BIH Order Number LMC6001AIN, LMC6001BIN or LMC6001CIN 8-Pin Metal Can Package (H) NS Package Number H08C 8-Pin Molded Dual-In-Line Package NS Package Number N08E 13 www.national.com ...

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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR ...

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