Common Applications
- Whenever a regulated 2.5V or 4.1V signal is needed.
LJTick-VRef-25 Images
Figure 1: LJTick-VRef-25 | Figure 2: LJTick-VRef-25 with U3-LV |
The LJTick-VRef is a Voltage reference accessory that outputs a stable 2.5V or 4.096V signal. These ticks are commonly used as an excitation voltage for various circuits. The IOA and IOB lines are pass-through terminals, and do not interact with the accessory in any way.
- VRef-25 Specs:
- Voltage: 2.5V
- Accuracy: ±0.08%, ±2mV
- VRef-41 Specs:
- Voltage: 4.096V
- Accuracy: ±0.08%, ±3.27mV
- Common Specs:
- Maximum load: 50mA
- Short circuit current: 100mA
- Temperature coefficient: 5ppm/°C
The VRef-25 uses the voltage reference chip: LT1461CIS8-2.5#. The VRef-41 uses the voltage reference chip: LT1461CIS8-4#. Please see the LJTick-VRef datasheet for more information.
Specifications:
| Parameter | Conditions | Min | Typical | Max | Units |
| | | | | |
| Output Voltage (VRef-25) | | | 2.5 | | V |
| Output Voltage (VRef-41) | | | 4.096 | | V |
| Output Voltage Variance | | -0.08 | | 0.08 | % full scale |
| Output Voltage Temperature Coefficient | | | 5 | 12 | ppm/°C |
| Output Voltage Noise | 0.1Hz ≤ f ≤ 10Hz | | 8 | | ppmP-P |
| 10Hz ≤ f ≤ 1kHz | | 9.6 | | ppmRMS |
| Maximum Load | | | | 50 | mA |
| Short Circuit Current | | | 100 | | mA
|
