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LMC6001 Datasheet Preview

LMC6001 Datasheet

Ultra-Low Input Current Amplifier

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LMC6001
SNOS694I – MARCH 1995 – REVISED SEPTEMBER 2015
LMC6001 Ultra, Ultra-Low Input Current Amplifier
1 Features
1 (Maximum Limit, 25°C Unless Otherwise Noted)
• Input Current (100% Tested): 25 fA
• Input Current Over Temperature: 2 pA
• Low Power: 750 μA
• Low VOS: 350 μV
• Low Noise: 22 nV/Hz at 1 kHz Typical
2 Applications
• Electrometer Amplifiers
• Photodiode Preamplifiers
• Ion Detectors
• A.T.E. Leakage Testing
3 Description
Featuring 100% tested input currents of 25 fA
maximum, low operating power, and ESD protection
of 2000 V, the LMC6001 device achieves a new
industry benchmark for low input current operational
amplifiers. By tightly controlling the molding
compound, Texas Instruments is able to offer this
ultra-low input current in a lower cost molded
package.
To avoid long turnon settling times common in other
low input current op amps, the LMC6001A is tested
three 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 kΩ, 0.1 dB at 1 MΩ and 0.01
dB or less from 10 MΩ to 2,000 MΩ, the LMC6001 is
an almost noiseless amplifier.
The LMC6001 is ideally suited for electrometer
applications requiring ultra-low input leakage such as
sensitive photodetection transimpedance amplifiers
and sensor amplifiers. Because input referred noise is
only 22 nV/Hz, the LMC6001 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 measurement circuits.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMC6001
PDIP (8)
TO-99 (8)
9.81 mm × 6.35 mm
9.08 mm × 9.08 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
R2
R1
VIN
±
LMC6001
+
VOUT
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LMC6001 Datasheet Preview

LMC6001 Datasheet

Ultra-Low Input Current Amplifier

No Preview Available !

LMC6001
SNOS694I – MARCH 1995 – REVISED SEPTEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 DC Electrical Characteristics for LMC6001AI ........... 4
6.6 DC Electrical Characteristics for LMC6001BI ........... 6
6.7 DC Electrical Characteristics for LMC6001CI ........... 7
6.8 AC Electrical Characteristics for LMC6001AIC......... 9
6.9 AC Electrical Characteristics for LM6001BI .............. 9
6.10 AC Electrical Characteristics for LMC6001CI ....... 10
6.11 Dissipation Ratings ............................................... 10
6.12 Typical Characteristics .......................................... 11
7 Detailed Description ............................................ 14
7.1 Overview ................................................................. 14
7.2 Functional Block Diagram ....................................... 14
7.3 Feature Description................................................. 14
7.4 Device Functional Modes........................................ 14
8 Applications and Implementation ...................... 15
8.1 Application Information............................................ 15
8.2 Typical Application .................................................. 16
8.3 System Example ..................................................... 18
9 Power Supply Recommendations...................... 19
10 Layout................................................................... 19
10.1 Layout Guidelines ................................................. 19
10.2 Layout Example .................................................... 20
11 Device and Documentation Support ................. 21
11.1 Documentation Support ........................................ 21
11.2 Related Links ........................................................ 21
11.3 Community Resources.......................................... 21
11.4 Trademarks ........................................................... 21
11.5 Electrostatic Discharge Caution ............................ 21
11.6 Glossary ................................................................ 21
12 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision H (March 2013) to Revision I
Page
• Added Pin Functions table ESD Ratings table, Recommended Operating Conditions table, Thermal Information
table, Timing Requirements table, Switching Characteristics table, Feature Description section, Device Functional
Modes, Parameter Measurement Information section, Detailed Description section, Register Maps section,
Application and Implementation section, Power Supply Recommendations section, Layout section, Device and
Documentation Support section, and Mechanical, Packaging, and Orderable Information section. .................................... 1
Changes from Revision F (March 2013) to Revision H
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 18
2
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Copyright © 1995–2015, Texas Instruments Incorporated


Part Number LMC6001
Description Ultra-Low Input Current Amplifier
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