BH2221FV Datasheet, PDF (1/6 Pages) Rohm – 8bit 12ch D/A converter

Standard ICs
8bit 12ch D/A converter
BH2221FV
BH2221FV
BH2221FV is an 8bit D/A converter for electronic adjustment. The 12-channel DC output voltage can be independently
controlled by three-wire serial interface from micro-controller. The D/A converter can generate without loss by Rail-to-Rail
output within the setting voltage. The built-in power ON reset circuit keeps the output state Low after the power is ON and
prevents the unstable output state.
!Applications
The voltage adjustment for DVC, DSC etc.
!Features
1) 8bit 12-channel D/A converters adopting R-2R system.
2) The full scale output voltage range : 2.7V∼5.5V.
3) 3-wire 12-bit serial interface.
4) POWER ON RESET circuit.
5) SSOP-B20 package.
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
−0.3~+7.0
Maximum output voltage
VIN
−0.3~VCC
Storage temperature
Tstg
Power dissipation
Pd
−55~+125
400 ^∗
∗Reduced by 4mW for each increase in Ta of 1°C over 25°C.
This product is not designed for protection against radioactive rays.
V
V
°C
mW
!Recommended operating conditions (Ta=25°C)
Parameter
Symbol
Min.
VCC supply voltage
VCC
2.7
VDD supply voltage
VDD
2.7
Analog output source current
IOL
−
Analog output sink current
IOH
−
Operating temperature range
Topr
−20
Clock frequency
FSCLK
−
Limit load capacitance
CL
−
Typ.
−
−
−
−
−
1.0
−
Please set to VCC ≥ VDD.
Max.
5.5
VCC
1.0
1.0
85
−
0.1
Unit
V
V
mA
mA
°C
MHz
µF
1/6