BU2505FV_15 Datasheet, PDF (7/22 Pages) Rohm – 10bit 8ch/10ch D/A Converters

BU2505FV BU2506FV
D/A Converter Variable Output Range Function
BU2505FV and BU2506FV have terminals with which the upper and lower limits of the output voltage range can be changed
separately. The upper limit of the output voltage range is set with the VrefH terminal and the lower limit is set with VrefL terminal. In
general usage, the VrefH terminal is connected to the VCC terminal and the VrefL terminal is connected to the GND terminal.
When the power supply voltage on the VCC terminal is 5V, 1LSB is almost 5mV. In other cases, it is possible to achieve a
finer resolution. For example, if VrefH = 3.5V and VrefL = 1.5V, then 1LSB is almost 2mV.
VOUT
5V
0V
000h
VOUT
5V
3.5V
1024
ステsteッpプ
1.5V
0V
3FFh Input Code 000h
1024
スsテteッp プ
VrefH
VrefL
3FFh Input Code
1LSB≈5.0mV
1LSB≈2.0mV
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TSZ22111・15・001
7/18
TSZ02201-0RLR0GZ10140-1-2
11.Dec.2015 Rev.001