ATS2000C Series High Precision Current Source

Output current up to ±3A (ATS-2420C), resolution down to 20pA (ATS-2401C), four-quadrant precision current source

Current-based measurements — photodiode characterisation, low-current sensor calibration, semiconductor parameter testing — often need a source capable of extremely fine current steps, well beyond what a general-purpose current source can deliver. Aigtek's ATS-2000C Series addresses this specifically: a high-precision current source with resolution down to 20pA, built for general-purpose precision current sourcing rather than power delivery.

The range is split across three models: the ATS-2401C reaches ±1A with resolution down to 20pA, the ATS-2420C extends to ±3A with resolution down to 500pA, and the ATS-2100CF covers ±100mA with resolution down to 10nA and the tightest accuracy specification of the three. Each model steps through multiple output ranges, with Aigtek publishing resolution and one-year accuracy for every range.

The straightforward LCD panel operation keeps the instrument accessible for routine lab use, while the underlying precision specification supports the kind of exacting current-source applications — device characterisation, precision calibration, low-current reference generation — that a general bench current source isn't built to handle.

ATS2000C Series High Precision Current Source

General-purpose high precision current sources, output up to ±3A (ATS-2420C) and resolution down to 20pA (ATS-2401C). Simple LCD-based operation.

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Model	Output Current	Resolution	Digits
ATS-2401C	1A	20pA	5½	Enquire
ATS-2420C	3A	500pA	5½	Enquire
ATS-2100CF	±100mA	10nA		Enquire

Model Details

ATS-2401C: Introduction, Full Specifications & Datasheet

Product Introduction

The ATS-2401C is a four-quadrant high-precision current source with a maximum output current of ±1A and a minimum current resolution of 20pA. Output is numerically adjustable to suit the test, and the LCD panel shows device status and parameters.

OutputMaximum output current ±1A, minimum resolution 20pA, adjustable numerically.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.

ApplicationsChip and sensor testing, electronic test and design validation, calibration of instruments and meters.

Specifications

Model	ATS-2401C
Output Ranges (accuracy within 1 year, 25°C ±5°C, ± (% of output + offset))
Range ±1.00000μA	Resolution 20pA; accuracy ±(0.035% + 600pA)
Range ±10.0000μA	Resolution 200pA; accuracy ±(0.033% + 2nA)
Range ±100.000μA	Resolution 2nA; accuracy ±(0.031% + 20nA)
Range ±1.00000mA	Resolution 20nA; accuracy ±(0.034% + 200nA)
Range ±10.0000mA	Resolution 200nA; accuracy ±(0.045% + 2μA)
Range ±100.000mA	Resolution 2μA; accuracy ±(0.066% + 20μA)
Range ±1.00000A	Resolution 20μA; accuracy ±(0.27% + 900μA)

Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.

Technical Documentation

Download the full technical datasheet for the ATS-2401C, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATS-2401C →

ATS-2420C: Introduction, Full Specifications & Datasheet

Product Introduction

The ATS-2420C is a four-quadrant high-precision current source with a maximum output current of ±3A and a minimum current resolution of 500pA. Output is numerically adjustable to suit the test, and the LCD panel shows device status and parameters.

OutputMaximum output current ±3A, minimum resolution 500pA, adjustable numerically.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.

ApplicationsChip and sensor testing, electronic test and design validation, calibration of instruments and meters.

Specifications

Model	ATS-2420C
Output Ranges (accuracy within 1 year, 25°C ±5°C, ± (% of output + offset))
Range ±10.0000μA	Resolution 500pA; accuracy ±(0.033% + 2nA)
Range ±100.000μA	Resolution 5nA; accuracy ±(0.03% + 20nA)
Range ±1.00000mA	Resolution 50nA; accuracy ±(0.034% + 200nA)
Range ±10.0000mA	Resolution 500nA; accuracy ±(0.045% + 2μA)
Range ±100.000mA	Resolution 5μA; accuracy ±(0.066% + 20μA)
Range ±1.00000A	Resolution 50μA; accuracy ±(0.067% + 900μA)
Range ±3.00000A	Resolution 200μA; accuracy ±(0.059% + 2.7mA)

Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.

Technical Documentation

Download the full technical datasheet for the ATS-2420C, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATS-2420C →

ATS-2100CF: Introduction, Full Specifications & Datasheet

Product Introduction

The ATS-2100CF is a four-quadrant high-precision current source with a maximum output current of ±100mA and a minimum current resolution of 10nA. Output is numerically adjustable to suit the test, and the LCD panel shows device status and parameters.

OutputMaximum output current ±100mA, minimum resolution 10nA, adjustable numerically.

LCD Panel DisplayDynamically shows device status and parameters with a clear, intuitive interface.

ApplicationsChip and sensor testing, electronic test and design validation, calibration of instruments and meters.

Specifications

Model	ATS-2100CF
Output Ranges (accuracy within 1 year, 25°C ±5°C, ± (% of output + offset))
Range ±1mA	Resolution 10nA; accuracy ±(0.003% + 0.05μA)
Range ±10mA	Resolution 100nA; accuracy ±(0.005% + 0.5μA)
Range ±100mA	Resolution 1μA; accuracy ±(0.01% + 5μA)

Full specification table as published by Aigtek. Contact Finch to confirm current specifications before ordering.

Technical Documentation

Download the full technical datasheet for the ATS-2100CF, published by Aigtek.

⬇ Download Datasheet (PDF) Enquire About ATS-2100CF →

Related Series

ATS1000V Series

Reference voltage source, up to 13V

ATS2000V Series

High precision voltage source, up to 200V

Frequently Asked Questions

What applications actually need picoamp-level current resolution?

Photodiode and other low-current sensor characterisation, semiconductor leakage current testing, and precision calibration of sensitive current-measurement instruments all operate at current levels where coarse resolution would swamp the actual signal being characterised — 20pA resolution lets the ATS-2000C source current accurately at this scale.

How do the three ATS-2000C models differ?

Each model steps through multiple output ranges, from microamps to its full-scale current, with finer resolution on the lower ranges. No single model covers the whole span: choose the ATS-2401C for the finest resolution (20pA, up to ±1A), the ATS-2420C for the highest current (up to ±3A, from 500pA resolution), or the ATS-2100CF for the tightest accuracy up to ±100mA.

Is the ATS-2000C suited to production testing or is it primarily a lab reference instrument?

Its precision-first specification and general-purpose current-sourcing design make it well suited to both lab characterisation work and calibration tasks; its straightforward panel operation also supports it being used in a more repetitive production or QA testing context where operator simplicity matters alongside accuracy.

See Aigtek's technical documentation for the ATS-2000C series →

ATS2000C Series High Precision Current Source

Frequently Asked Questions

What applications actually need picoamp-level current resolution?

How do the three ATS-2000C models differ?

Is the ATS-2000C suited to production testing or is it primarily a lab reference instrument?

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