DL Instruments / Ithaco 1211 Current Preamplifier
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DL Instruments / Ithaco 1211 Current Preamplifier

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Stock # 56129-1
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DL Instruments / Ithaco 1211 Current Preamplifier

  • Calibrated, Front Panel Rise Time Settings from 10µSec to 1 Second
  • 600Ω Output, 50Ω Output and Zero Ω Unity Gain (Converter) Output
  • 0-5 Volt Adjustable Detector Bias Supply
  • Runs On Batteries Only, Line Power Only, or While Recharging from the Line
  • Switch Selectable Fast Charge and Trickle Charge Rates


The DL Instruments / Ithaco 1211 Current Preamplifier measures current with full scale sensitivity ranging from 10-2 to 10-12 amperes. With a dynamic range of 96dB and output stability better than 0.003% per °C or per day plus a gain stability of 0.05% per °C of per day, its performance is unexcelled.

The classic analog design provides a clean signal without the high frequency "hash" encountered with microprocessor based designs employing multiplexed front panes displays. The wide gain bandwidth product permits calibrated, front panel rise time settings from 10µsec to 1 second. The 1211 has a 600Ω output, a 50Ω output and a zero Ω unity gain (converter) output. It may be gated off and on by a TTL Level Pulse at a rear panel connector at a rate up to 5 kHz for input overload suppression, etc.

Other convenience features include a 0-5 volt adjustable detector bias supply with 100ppm per °C stability and calibrated current suppression of 10-3 to 10-10 amperes in 8 ranges. The unit may be battery operated. This allows the unit to run on batteries only, line power only, or while recharging from the line. Fast charge and trickle charge rates are switch selectable.

Product Family: 1211, 1211-M104, 1211-10, I2II

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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DL Instruments / Ithaco 1211 Current PreamplifierDL Instruments / Ithaco 1211 Current PreamplifierDL Instruments / Ithaco 1211 Current Preamplifier
DL Instruments / Ithaco 1211 Current Preamplifier

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DL Instruments / Ithaco 1211 Datasheet (pdf) 
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