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Categories: Converters, D/A converters
Manufacturer: Keysight Technologies (Agilent HP)
Model: 44727A
Condition: Used
Keysight (formerly Agilent T&M) 44727A Digital-to-Analog Converter
The 44727AT Digital-to-Analog Converter provides 4 channels. Each channel can be configured using finger-movable jumpers to output either unipolar or bipolar voltage, or unipolar current. Channels are isolated and can be connected in parallel for current or in series for voltage to expand the usable ranges. Each channel configured for voltage has remote sense capabilities to ensure accurate voltages at the device. Used in 3852A Control Unit. Outputs directly DC voltage and current.
The HP 44727A (as well as the 44727B and 44727C) is one of the 4-channel Voltage/Current DAC plug-in accessories for the 3852A mainframe.
The 44727A has all four channels configured for voltage outputs. Each channel has remote sense capability for accurate outputs at the test point. The channels can float up to 170 volts peak above ground.
The 44727A consists of a component module and a terminal module. The component module contains both analog and digital sections. The digital section consists of a local controller to interface with the backplane and channel drivers. The analog section is identical for each channel and consists of error amplifiers, sense amplifiers, output buffers, and potentiometers for calibration. The terminal module contains jumpers to configure and calibrate the output channels. The module also contains terminal strips for user connections and calibration resistors for current.
An important feature of the 44727A is monotonicity, which guarantees that the output will never change in a direction other than that programmed. For example, if a voltage channel is set for 5 mV output and then programmed for a 10 mV output, the actual output will never be less than 5 mV.
Because the 44727A consumes a relatively large amount of power, a limited number of accessories can be installed in the 3852A.
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Product Specs
(From Used-Line T&M Specifications)
Keysight formerly Agilent T&M 44727A
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