BH2223FV,BH2221FV
Technical Note
2/7
www.rohm.com
2010.06 - Rev.B
2010 ROHM Co., Ltd. All rights reserved.
●Recommended Operating Conditions (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Remarks
MIN.
TYP.
MAX.
VCC power source voltage
VCC
2.7
-
5.5
V
-
VDD power source voltage
VDD
2.7
-
VCC
V
-
Terminal input voltage range
VIN
0
-
VCC
V
-
Analog output current
IO
-1.0
0
1.0
mA
-
Action temperature range
TOPR
-20
-
85
-
Serial clock frequency
FSCLK
-
1.0
10.0
MHz
-
Limit load capacity
CL
-
0.1
F
-
●Electrical Characteristics (Unless otherwise specified, VCC=3.0V, VDD=3.0V, RL=OPEN, CL=0pF, Ta=25℃)
Parameter
Symbol
Limits
Unit
Conditions
MIN.
TYP.
MAX.
<Current consumption>
VCC system
ICC
-
0.6
1.5
mA
CLK=1MHz, 80H setting
VDD system
IDD
-
1.0
2.0
mA
<Logic interface>
L input voltage
VIL
GND
-
0.2VCC
V
H input voltage
VIH
0.8VCC
-
VCC
V
Input current
IIN
-10
-
10
A
<Buffer amplifier>
Output zero scale voltage
ZS1
GND
-
0.1
V
00H setting, at no load
ZS2
GND
-
0.3
V
00H setting, IOH=1.0mA
Output full scale voltage
FS1
VCC-0.1
-
VCC
V
FFH setting, at no load
FS2
VCC-0.3
-
VCC
V
FFH setting, IOL=1.0mA
<D/A converter precision>
Differential non linearity error
DNL
-1.0
-
1.0
LSB
Input code 02H to FDH
Integral non linearity error
INL
-1.5
-
1.5
LSB
Input code 02H to FDH
VCC power source voltage rise time
trVCC
100
-
s
VCC=0→2.7V
Power ON reset release voltage
VPOR
-
1.9
-
V
●Timing Chart (VCC = 3.0V, VDD = 3.0V, RL = OPEN, CL = 0pF, Ta = 25℃, unless otherwise specified.)
Parameter
Symbol
Limits
Unit
Conditions
MIN.
TYP.
MAX.
CLK L level time
tCLKL
50
-
ns
CLK H level time
tCLKH
50
-
ns
DI setup time
tsDI
20
-
ns
DI hold time
thDI
40
-
ns
LD setup time
tsLD
50
-
ns
LD hold time
thLD
50
-
ns
LD H level time
tLDH
50
-
ns
Output settling time
tOUT
-
100
s
CL=50pF, RL=10k
Fig.1
tCLKL
tCLKH
tsDI
thDI
LAST DATA
tsLD
tLDH
thLD
tOUT
CLK
DI
LD
Analog output
0.8VCC
0.2VCC
0.8VCC
0.2VCC
0.8VCC
0.2VCC
90%
10%
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