Advantest R6144 DC Voltage / Current Calibrator

The Advantest R6144 is a precision DC voltage and current calibrator engineered for high-accuracy evaluation and calibration of precision instruments, circuits, and components. It delivers voltage outputs up to 32 V and current outputs up to 160 mA with guaranteed accuracy of 0.03% (voltage) and 0.035% (current) over a 6-month interval. The instrument employs time-sharing D/A conversion circuitry to achieve excellent linearity and stability while minimizing settling time and output noise.

Technical Specifications

• Voltage Output: 1 V, 10 V, 30 V ranges with 1 µV resolution steps


• Current Output: 1 mA, 10 mA, 100 mA ranges with 100 nA resolution steps


• Accuracy: 0.03% (voltage, 6-month guarantee); 0.035% (current, 6-month guarantee)


• Output Noise: 3 mVp-p - one-fifth of previous generation models


• Settling Time: Maximum 50 ms to ±0.1% of expected value - one-third faster than prior models


• Line Regulation: ±0.005% of range or less at rated voltage −15% to +10%


• Load Regulation: ±0.005% of range or less at maximum load (4-wire connection, excluding 10 mV and 100 mV ranges)


• Memory: 160-step built-in memory capacity


• Sweep Function: All-digit continuous variable sweep capability


• Power Consumption: 27 VA maximum

Key Features

• Time-sharing D/A conversion circuit ensures superior linearity and output stability


• Reduced settling time enhances measurement throughput and reliability


• Low output noise improves signal integrity for precision calibration work


• Configurable voltage and current ranges accommodate diverse test requirements


• Built-in memory and sweep function support automated calibration sequences

Typical Applications

• Calibration of precision temperature controllers and measuring instruments


• Evaluation and characterization of precision analog circuits and semiconductor devices


• DC source requirements in automated test environments

Compatibility & Integration The R6144 interfaces via GPIB and BCD parallel connections for integration with external test systems and controllers. Programs developed for the TR6142 predecessor operate without modification on this platform.