LM399 5 ½ or 6 ½ Digit High Precision Voltage Reference for Multimeter Calibration

Description:

The voltage standard uses the LM399 for Linear Technology as the reference element, with two sets of voltage outputs 6.95V/10V. 6.95V is the direct output of LM399. 10V is 6.95V outputted to 10V after being boosted by a precision op amp.

The LM399 reference IC is used as a reference IC in many 6 ½ digit multimeters and is a constant temperature reference. Compared with 4 ½ digit references such as AD584 and BQ588, its temperature coefficient is much smaller, and basically does not exceed 0.5PPM/°C. It can be used as a 5 ½ digit or 6 ½ digit voltage reference.

Features:

 USB 5V power supply: convenient for power supply

 Small size and light weight: convenient for transfer between reference branches

 <0.5PPM/°C for 6.95V; <1PPM/°C for 10V

 Output adopts 4mm standard safety banana socket

 Maximum noise level: 7uVRMS

 Product size: 93x70x28mm

 Net weight: 84g

Electrical Performance Parameters:

 Power supply voltage: 5V 1A

 Power supply interface: Type-C

 6 ½ digit precision warm-up time: more than 1 hour

 Output voltage: 6.95V/10V

 Voltage calibration instrument: DMM7510 7 ½ digit multimeter for KEITHELY

Package Included:

 1 x Voltage Reference Standard