DAC312
–8–
REV. C
Interfacing with Various Logic Families
Bipolar Offset (True Zero)
BASIC CONNECTIONS
MSB LSB I
O
I
O
Code Format Output Scale B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 (mA) (mA) V
OUT
Offset Binary; Positive Full-Scale 1 111111111 1 1 3.999 0.000 9.9951
True Zero Output. Positive Full-Scale –LSB 1 111111111 1 0 3.998 0.001 9.9902
+LSB 1 000000000 0 1 2.001 1.998 0.0049
Zero-Scale 1 000000000 0 0 2.000 1.999 0.000
–LSB 0 111111111 1 1 1.999 2.000 –0.0049
Negative Full-Scale +LSB 0 000000000 0 1 0.001 3.998 –9.9951
Negative Full-Scale 0 000000000 0 0 0.000 3.999 –10.000
2s Complement; Positive Full-Scale 0 111111111 1 1 3.999 0.000 9.9951
True Zero Output Positive Full-Scale –LSB 0 111111111 1 0 3.998 0.001 9.9902
MSB Complemented +1 LSB 0 000000000 0 1 2.001 1.998 0.0049
(Need Inverter at B1). Zero-Scale 0 000000000 0 0 2.000 1.999 0.000
–1 LSB 1 111111111 1 1 1.999 2.000 –0.0049
Negative Full-Scale +LSB 1 000000000 0 1 0.001 3.998 –9.9951
Negative Full-Scale 1 000000000 0 0 0.000 3.999 –10.000
