LMC6001 - Ultra Ultra-Low Input Current Amplifier

Datasheet	Packaging	Samples & Pricing	Reliability	Design Tools	Models	Knowledge Base

Features

(Max limit, 25°C unless otherwise noted)

•	Input current (100% tested): 25 fA
•	Input current over temp.: 2 pA
•	Low power: 750 μA
•	Low V_OS: 350 μV
•	Low noise: 22 nV/ √ ^Hz @1 kHz Typ.

General Description

Applications

•	Electrometer amplifier
•	Photodiode preamplifier
•	Ion detector
•	A.T.E. leakage testing

Typical Application

click for larger image

Parameters Values

Supply Min 4.5 Volt

Supply Max 15.5 Volt

Gain Bandwidth 1.3 MHz

Slew Rate 1.5 Volts/usec

Offset Voltage max, 25C 1, 0.35 mV

Max Input Bias Current 0.002, 0.004 nA

Input OutputType Vcm to V-, R-R Out

Supply Current Per Channel 0.45 mA

PowerWise Rating 2 346.2 uA/MHz

Channels 1 Channels

Output Current 21 mA

Shut down No

Special Features Undefined

Voltage Noise 22 nV/root(Hz)

Temperature Max 85 deg C

Temperature Min -40 deg C

Function Op Amp

Typical Performance

click for larger image

WEBENCH Live Simulation!

LMC6001 Webench® Custom
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Inverting Amplifier

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NonInverting Amp

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Lowpass Filter 4th Order

Highpass Filter

Required Parameters

Supply voltage:

If "Other", Positive Supply is:

If "Other", Negative Supply is:

NOTE: 4.5 V <= Total Supply Voltage <= 15.5 V

What is Webench?

Also Recommended

LMP7701▲	Higher Bandwidth, Lower Voltage Offset, Better CMRR
LMP7721▲	Lower Input Current

Additional Resources

Design Tools

Connection Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LMC6001 Ultra Ultra-Low Input Current Amplifier	390 Kbytes	4-Nov-09	Download
LMC6001 Ultra Ultra-Low Input Current Amplifier (Japanese)	403 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LMC6001AIN

MDIP

NOPB
STD

1
1

NA
NA

RoHS

Download

Full production

LMC6001A.MOD

1K+

$9.46

rail
of
40

NSUZXYTTE#
LMC6001
AIN

6 weeks

500

LMC6001BIN

MDIP

NOPB
STD

1
1

NA
NA

RoHS

Download

Full production

LMC6001B.MOD

1K+

$5.76

rail
of
40

NSUZXYTTE#
LMC6001
BIN

6 weeks

LMC6001A MDC

Unpackaged Die

Full production

LMC6001A.MOD

CALL

tray
of
N/A

N/A

1000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMC6001C MDC	LMC6001AIN	NATIONAL SEMICONDUCTOR	06 Dec 2005
LMC6001CIN	NONE	NATIONAL SEMICONDUCTOR	07 Jun 2005

General Description

Featuring 100% tested input currents of 25 fA max., low operating power, and ESD protection of 2000V, the LMC6001 achieves a new industry benchmark for low input current operational amplifiers. By tightly controlling the molding compound, 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 input 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 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. Since 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.

Reliability Metrics

Part Number	Process	EFR Sample Size	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMC6001A MDC	P2CMOS	49735	1	4330000	2	556689228
LMC6001AIN	P2CMOS	49735	1	4330000	2	556689228
LMC6001BIN	P2CMOS	49735	1	4330000	2	556689228

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Design Tools

Title	Size in Kbytes	Date
Amplifiers Selection Guide software for Windows			View

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 8-Nov-2009]