BU2508FV_09 Datasheet, PDF (4/9 Pages) Rohm – High-precision 10bit 4ch-E6ch Type D/A Converters

BU2508FV,BU2507FV
Technical Note
●Terminal Description
No
Terminal
name
1
VSS
Analog /
Digital
I/O
Description of terminal
Analog - DA converter lower standard voltage (VrefL) input terminal
Equivalent
circuit
6
2
AO2
Analog O 10bit D/A output (CH2)
4
3 AO3(TEST1) Analog O 10bit D/A output (CH3) (BU2508FV : test terminal)
4
4
Reset
Digital
I All ch analog output L fixed
2
5 AO4(TEST2) Digital
I 10bit D/A output (CH4) (BU2508FV : test terminal)
4
6
AO5 (AO3) Analog O 10bit D/A output (CH5) (BU2508FV : 10bit D/A output (CH3))
4
7
VDD
Analog - DA converter upper standard voltage (VrefH) input terminal
5
8
VCC
-
- Power source terminal
-
9
AO6 (AO4) Analog O 10bit D/A output (CH6) (BU2508FV : 10bit D/A output (CH4))
4
10
LD
Digital
I
When High level is input to LD terminal, the value of 14bit shift
register is loaded to decoder and D/A output register.
1
11
CLK
Digital
I
Shift clock input terminal. At rise of shift clock, the signal from DI
terminal is input to 14bit shift register.
1
12
DI
Digital
I
Serial data input terminal. Serial data whose data length is 14bit
(address 4bit + data 10bit) is input.
1
13
AO1
Analog O 10bit D/A output (CH1)
4
14
GND
-
- GND terminal
-
*In the case of BU2508FV, be sure to open TEST1 and TEST2 terminals.
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2009.06 - Rev.A