Hello,
I'm trying to use the TLV5616 DAC ic from TI, http://www.ti.com/product/tlv5616
But I don't understand the REFIN input well.
Mine connection are as follows
When I send 0x0f 0xff
I get OUT = REFIN
But as I understand from the datasheet I should get REFIN * 2?
page 11:
The output voltage (full scale determined by external reference) is given by: 2REF * (CODE/2^n)
(code is 12 bit dac value)
Any ideas?
I'm trying to use the TLV5616 DAC ic from TI, http://www.ti.com/product/tlv5616
But I don't understand the REFIN input well.
Mine connection are as follows
Rich (BB code):
1 DIN <- MOSI
2 SCLK <- SCK
3 !CS! <- GND
4 FS <- IO OUT
5 AGND - GND
6 REFIN <- 3.3V/2
7 OUT ->
8 VDD <- 3.3V
I get OUT = REFIN
But as I understand from the datasheet I should get REFIN * 2?
page 11:
The output voltage (full scale determined by external reference) is given by: 2REF * (CODE/2^n)
(code is 12 bit dac value)
Any ideas?