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BH2228FV-E2

P1-P3P4-P6P7-P9
BH2227FV, BH2228FV
Technical Note
4/8
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●Terminal Description / Block Diagrams
(BH2227FV)
Terminal Terminal name Function
1 AO1
Analog output terminal
2 AO2
3 TESTMONI1
Test terminal
(OPEN at normal use)
4 TESTMONI2
5 AO3
Analog output terminal
6 AO4
7 NC
Internally not connected yet
8 NC
9 VDD
Power source terminal
(AO3, 4 full scale voltage
use in common)
10 CSB
Chip select signal input terminal
11 CLK
Serial clock input terminal
12 DI
Serial data input terminal
13 VFS
AO1,2 full scale
Voltage setting terminal
14 VSS
Ground terminal
Fig.2
(BH2228FV)
Terminal Terminal name Function
1 AO1
Analog output terminal
2 AO2
3 AO3
4 AO4
5 AO5
6 AO6
7 NC
Internally not connected yet
8 NC
9 VDD
Power source terminal
(AO4~6 full scale voltage use
in common)
10 CSB
Chip select signal input terminal
11 CLK
Serial clock input terminal
12 DI
Serial data input terminal
13 VFS
AO1,2,3 full scale
Voltage setting terminal
14 VSS
Ground terminal
Fig.3
●Equivalent Circuits
Terminal Equivalent circuit Terminal Equivalent circuit
AO1
AO2
AO3
AO4
AO5
AO6
DI
CLK
CSB
Fig.4 Equivalent circuit
AO3
AO4
2
AO2
Serial
Interface
VDD
PowerOn
Reset
VDD
R2R REG
VFS
VDD
1
AO1
5
AO5
6
AO6
7
NC
R2R REG
VFS
VDD
R2R REG
VDD
VDD
R2R REG
VDD
VDD
14
VSS
13
VFS
12
DI
11
CLK
10
CSB
9
VDD
8
NC
4
VFS
VDD
3
R2R REG
VFS
VDD
R2R REG
VDD
VDD
VSSVSS
VDDVDD
VSS VSS
VDD VDD
6
TEST
MONI1
TEST
MONI2
2
AO2
Serial
Interface
PowerOn
Reset
R2R REG
VFS
VDD
1
AO1
5
AO3
AO4
7
NC
R2R REG
VFS
VDD
R2R REG
VDD
VDD
R2R REG
VDD
VDD
14
VSS
13
VFS
12
DI
11
CLK
10
CSB
9
VDD
8
NC
4
3
BH2227FV, BH2228FV
Technical Note
5/8
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●Operation Description
Command Transmission
The Control command consists of 3-lines of 12bit serial input data (MSB first).
Data is read at the rise edge of CLK, and data becomes valid in the CSB Low area (before the CSB rise for 12bit data).
Fig.5
Data Settings
D0 D1 D2 D3 D4 D5 D6 D7 Setting
0 0 0 0 0 0 0 0 GND
1 0 0 0 0 0 0 0 (VDD or VFS-GND)/256x1
0 1 0 0 0 0 0 0 (VDD or VFS-GND)/256x2
1 1 0 0 0 0 0 0 (VDD or VFS-GND)/256x3
0 0 1 0 0 0 0 0 (VDD or VFS-GND)/256x4
~ ~
0 1 1 1 1 1 1 1 (VDD or VFS-GND)/256x254
1 1 1 1 1 1 1 1 (VDD or VFS-GND)/256x255
Note: Initial status D[7:0]=00h
Channel Settings
D8 D9 D10 D11 BH2227FV BH2228FV
0 0 0 0 Inconsequential Inconsequential
0 0 0 1 AO1 AO1
0 0 1 0 AO2 AO2
0 0 1 1 Inconsequential AO3
0 1 0 0 Inconsequential AO4
0 1 0 1 AO3 AO5
0 1 1 0 AO4 AO6
0 1 1 1 Inconsequential Inconsequential
1 0 0 0 Inconsequential Inconsequential
1 0 0 1 Inconsequential Inconsequential
1 0 1 0 Inconsequential Inconsequential
1 0 1 1 Inconsequential Inconsequential
1 1 0 0 Inconsequential Inconsequential
1 1 0 1 Inconsequential Inconsequential
1 1 1 0 Inconsequential Inconsequential
1 1 1 1 Inconsequential Inconsequential
D0 D1
CSB
CLK
DI
D2D3D4D5D6D7D8 D9 D10 D11 X X
1 23456789 10 11 12
BH2227FV, BH2228FV
Technical Note
6/8
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●Electrical Characteristics Curves
Fig.6 VDD current
consumption
Fig.7 VFS current
consumption
Fig.8 Output voltage
characteristic
Fig.9 Differential non linearity
error
Fig.10 Integral non linearity
error
Fig.11 Power source voltage to
differential non linearity error
Fig.12 Power source voltage
to integral non linearity error
Fig.13 Output zero scale
voltage
Fig.14 Output full scale
voltage
Fig.15 Reset release voltage
Fig.16 Settling time
Fig.17 Input voltage
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VDD[V]
CIRCUIT CURRENT:IDD[mA]
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VFS[V]
CIRCUIT CURRENT:IFS[mA]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-50 -25 0 25 50 75 100
TEMPARATURE:Ta[
℃
]
RESET VOLTAGE:VPOR[V]
0
20
40
60
80
100
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
SETTLING TIME:tOUT[µs]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
INPUT VOLTAGE:VIL,VIH[V]
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
INL [LSB]
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
ZERO SCALE VOLTAGE:ZS[mV]
-140
-120
-100
-80
-60
-40
-20
0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
FULL SCALE VOLTAGE:FS[mV]
-0.4
-0.3
-0.2
-0.1
0.0
0.1
0.2
0.3
0.4
0 64 128 192 256
INPUT CODE [dec]
DNL [LSB]
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
0 64 128 192 256
INPUT CODE [dec]
INL [LSB]
0.00
0.05
0.10
0.15
0.20
0.25
0.0 1.0 2.0 3.0 4.0 5.0 6.0
SUPPLY VOLTAGE:VCC[V]
DNL [LSB]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 64 128 192 256
INPUT CODE [dec]
OUTPUT VOLTAGE:Vo[V]
85℃
25℃
-20℃
-20℃
25℃
85℃
-20℃
25℃
85℃
85℃
25℃
-20℃
85℃
25℃
-20℃
VDD=3.0V
VDD=3.0V VDD=3.0V
IL=1.0mA IL=1.0mA
VIH
VIL
P1-P3P4-P6P7-P9

BH2228FV-E2

Mfr. #:
Buy BH2228FV-E2
Manufacturer:
ROHM Semiconductor
Description:
Digital to Analog Converters - DAC TUNING D/A CONVERTER
Lifecycle:
New from this manufacturer.
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