D/A Converter Series for Electronic Adjustments
Standard 8bit 2ch・3ch Type
D/A Converters
BH2219FVM, BH2220FVM
No.09052EAT01
●Description
The BH2219FVM and BH2220FVM are 8bit R-2R-type D/A converters with 2 and 3 channels, respectively. A compact
package allows adjacent placement, thereby eliminating deterioration of the D/A converter due to wire pattern. Furthermore,
a built-in RESET function ensures that the output voltage at all channels is Low during power up. A broad power supply
voltage range (2.7V-5.5V) is available, providing design flexibility.
●Features
1) Compact package enabling adjacent placement
2) Built-in RESET function
3) High speed output response characteristics
4) 3-line serial interface
5) Broad power supply voltage range: 2.7V-5.5V
●Applications
DVCs, DSCs, DVDs, CD-Rs, CD-RWs
●Lineup
Parameter
Power source voltage range
Number of channels
Current consumption
Differential non linearity error
Integral non linearity error
Output current performance
Settling time
Maximum data transfer frequency
Input method
Data latch method
Package
●Absolute
Maximum Ratings(Ta=25℃)
Parameter
Power source voltage
Terminal voltage
Storage temperature range
Power dissipation
*1 Derated at 4.7mW/C at Ta>25℃
*2 These products are not robust against radiation
BH2219FVM
2.7V to 5.5V
2ch
0.6mA
±1.0LSB
±1.5LSB
±1.0mA
100µs
10MHz
CMOS
LD method
MSOP8
BH2220FVM
2.7V to 5.5V
3ch
0.6mA
±1.0LSB
±1.5LSB
±1.0mA
100µs
10MHz
CMOS
LD method
MSOP8
Symbol
VCC
VIN
TSTG
PD
Limits
-0.3 to 7.0
-0.3 to VCC
-55 to 125
470
*1
Unit
V
V
℃
mW
Remarks
-
-
-
-
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1/7
2009.06 - Rev.A
BH2219FVM, BH2220FVM
●Recommended
Operating Conditions(Ta=25℃)
Parameter
VCC power source voltage
Terminal input voltage range
Analog output current
Action temperature range
Serial clock frequency
Limit load capacity
Symbol
VCC
VIN
IO
TOPR
FSCLK
CL
MIN.
2.7
0
-1.0
-30
-
-
Limits
TYP.
-
-
-
-
1.0
-
MAX.
5.5
VCC
1.0
85
10.0
0.1
Unit
V
V
mA
℃
MHz
µF
Technical Note
Remarks
-
-
-
-
-
-
●Electrical
Characteristics(Unless otherwise specified, VCC=3.0V, RL=OPEN, CL=0pF, Ta=25℃)
Limits
Parameter
Symbol
Unit
MIN.
TYP.
MAX.
<Current consumption>
VCC system
ICC
-
0.4
0.8
mA
<Logic interface>
L input voltage
VIL
GND
-
0.2VCC
V
H input voltage
VIH
0.8VCC
-
VCC
V
Input current
IIN
-10
-
10
µA
<Buffer amplifier>
ZS1
GND
-
0.1
V
Output zero scale voltage
ZS2
GND
-
0.3
V
FS1
VCC-0.1
-
VCC
V
Output full scale voltage
FS2
VCC-0.3
-
VCC
V
<D/A converter precision>
Differential non linearity error
DNL
-1.0
-
1.0
LSB
Integral non linearity error
INL
-1.5
-
1.5
LSB
VCC power source voltage rise time
trVCC
100
-
-
µs
Power ON reset release voltage
VPOR
-
1.9
-
V
●Timing
Chart(Unless otherwise specified, VCC = 3.0V, Ta = 25℃)
Parameter
CLK L level time
CLK H level time
DI setup time
DI hold time
LD setup time
LD hold time
LD H level time
Output settling time
Symbol
tCLKL
tCLKH
tsDI
thDI
tsLD
thLD
tLDH
tOUT
MIN.
50
50
20
40
50
50
50
-
Limits
TYP.
-
-
-
-
-
-
-
-
MAX.
-
-
-
-
-
-
-
100
Unit
ns
ns
ns
ns
ns
ns
ns
µs
Conditions
CLK=1MHz, 80H setting
-
-
-
00H setting, at no load
00H setting, IOH=1.0mA
FFH setting, at no load
FFH setting, IOL=1.0mA
Input code 02H to FDH
Input code 02H to FDH
VCC=0→2.7V
-
Conditions
-
-
-
-
-
-
-
CL=50pF, RL=10kΩ
tCLKL
CLK
tCLKH
0.8VCC
0.2VCC
LAST DATA
0.8VCC
0.2VCC
tLDH
thLD
0.8VCC
0.2VCC
90%
10%
tOUT
DI
tsDI
LD
thDI
tsLD
Analog output
Fig.1
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© 2009 ROHM Co., Ltd. All rights reserved.
2/7
2009.06 - Rev.A
BH2219FVM, BH2220FVM
●Terminal
Description / Block Diagrams
(BH2219FVM)
Terminal
Terminal
name
1
AO1
2
3
4
5
6
7
8
AO2
TEST
MONI
VCC
GND
DI
CLK
LD
Technical Note
Function
VCC
VCC
R2R
Analog output terminal
Test terminal
(OPEN at normal use)
Power source terminal
Ground terminal
Serial data input terminal
Serial clock input terminal
Serial data load input terminal
AO1
1
AO2
2
TEST
MONI
3
VCC
REG
VCC
R2R
REG
Serial
Interface
8
7
6
LD
CLK
DI
PowerOn
Reset
VCC
4
5
GND
Fig.2
(BH2220FVM)
Terminal
Terminal
name
1
2
3
4
5
6
7
8
AO1
AO2
AO3
VCC
GND
DI
CLK
LD
Function
AO1
1
2
3
4
VCC
VCC
VCC
R2R
R2R
R2R
REG
VCC
Analog output terminal
Power source terminal
Ground terminal
Serial data input terminal
Serial clock input terminal
Serial data load input terminal
AO2
AO3
VCC
VCC
Serial
Interface
VCC
8
7
6
5
LD
CLK
DI
GND
REG
REG
PowerOn
Reset
VCC
VCC
Fig.3
●Equivalent
Circuits
Terminal
VCC
Equivalent circuit
VCC
Terminal
VCC
Equivalent circuit
VCC
AO1
AO2
AO3
GND
GND
DI
CLK
LD
GND
GND
Fig.4 Equivalent circuit
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3/7
2009.06 - Rev.A
BH2219FVM, BH2220FVM
●Operation
Description
Serial Interface
The Control command consists of 3 lines of 12bit serial input data (MSB first).
DI data is read at the rising edge of the CLK, and is held in the LD Low area.
The output data is determined in LD High area.
Technical Note
LD
1
CLK
DI
X
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
X
2
3
4
5
6
7
8
9
10
11
12
Fig.5
Data Settings
D0
D1
0
1
0
1
0
0
1
0
0
1
1
0
1
1
D2
0
0
0
0
1
1
1
D3
0
0
0
0
0
~
1
1
D4
0
0
0
0
0
1
1
D5
0
0
0
0
0
1
1
D6
0
0
0
0
0
1
1
D7
0
0
0
0
0
1
1
GND
Setting
(VCC-GND)/256x1
(VCC-GND)/256x2
(VCC-GND)/256x3
(VCC-GND)/256x4
~
(VCC-GND)/256x254
(VCC-GND)/256x255
Channel Setting (BH2219FVM)
D8
D9
D10
D11
0
1
0
1
0
0
1
1
X
X
X
X
X
X
X
X
AO1
AO2
Setting
Inconsequential
Inconsequential
Channel setting (BH2220FVM)
D8
D9
D10
D11
0
1
0
1
0
0
1
1
X
X
X
X
X
X
X
X
AO1
AO2
AO3
Setting
Inconsequential
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© 2009 ROHM Co., Ltd. All rights reserved.
4/7
2009.06 - Rev.A
BH2219FVM, BH2220FVM
●Electrical
Characteristics Curves
0.8
0.60
3000
Technical Note
OFFSET VOLTAGE:Voff[mV]
CIRCUIT CURRENT:ICC[mA]
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
25℃
-30℃
85℃
0.40
0.20
0.00
-0.20
-0.40
-0.60
-50
-25
0
25
50
75
100
OUTPUT VOLTAGE:Vo[mV]
CODE=80H
VCC=3.0V
2500
2000
1500
1000
500
0
0
64
128
192
256
SUPPLY VOLTAGE:VCC[V]
TEMPARATURE:Ta[℃]
INPUT CODE [dec]
Fig.6 Action current
consumption
Fig.7 DC offset voltage
Fig.8 Output voltage
characteristic
0.4
0.3
0.2
VCC=3.0V
1.0
0.8
0.6
0.4
VCC=3.0V
0.25
0.20
DNL [LSB]
DNL [LSB]
INL [LSB]
0.1
0.0
-0.1
-0.2
-0.3
-0.4
0
64
128
192
256
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
64
128
192
256
0.15
0.10
0.05
0.00
0.0
1.0
2.0
3.0
4.0
5.0
6.0
INPUT CODE [dec]
INPUT CODE [dec]
SUPPLY VOLTAGE:VCC[V]
Fig.9 Differential non linearity
error
0.45
0.40
0.35
Fig.10 Integral non linearity
error
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IL=1.0mA
25℃
85℃
Fig.11 Power source voltage
to differential non linearity
0
IL=1.0mA
ZERO SCALE VOLTAGE:ZS[mV]
FULL SCALE VOLTAGE:FS[mV]
-20
-40
-30℃
INL [LSB]
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.0
1.0
2.0
3.0
4.0
5.0
6.0
-30℃
-60
25℃
-80
85℃
-100
0.0
1.0
2.0
3.0
4.0
5.0
6.0
SUPPLY VOLTAGE:VCC[V]
SUPPLY VOLTAGE:VCC[V]
SUPPLY VOLTAGE:VCC[V]
Fig.12 Power source voltage
to integral non linearity error
3.0
Fig.13 Output zero scale
voltage
100
Fig.14 Output full scale
voltage
3.0
2.0
1.5
1.0
0.5
0.0
-50
-25
0
25
50
75
100
125
SETTLING TIME:tOUT[µs]
2.5
INPUT VOLTAGE:VIL,VIH[V]
RESET VOLTAGE:VPOR[V]
80
-30℃
25℃
85℃
2.5
2.0
1.5
1.0
0.5
0.0
VIH
VIL
60
40
20
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
TEMPARATURE:Ta[℃]
SUPPLY VOLTAGE:VDD[V]
SUPPLY VOLTAGE:VDD[V]
Fig.15 Reset release voltage
Fig.16 Settling time
Fig.17 Input voltage
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5/7
2009.06 - Rev.A
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