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2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
D/A Converter Series for Electronic Adjustments
Standard 8bit 4ch・6ch Type
D/A Converters
BH2227FV, BH2228FV
●Description
The BH2227FV and BH2228FV ICs are 8bit R-2R-type D/A converters with 4 and 6 channels, respectively. Optimized
circuitry allows two output voltages to be supplied (3V/5V). Furthermore, the built-in RESET function ensures that the output
voltage at all channels is Low during power up. A broad power supply voltage range is available (2.7V-5.5V), providing
design flexibility.
●Features
1) Suitable for 2 independent power sources (3V/5V)
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 BH2227FV BH2228FV
Power source voltage range 2.7 to 5.5V 2.7 to 5.5V
Number of channels 4ch 6ch
Current consumption 0.9mA 0.9mA
Differential non linearity error ±1.0LSB ±1.0LSB
Integral non linearity error ±1.5LSB ±1.5LSB
Output current performance ±1.0mA ±1.0mA
Settling time 100µs 100µs
Data transfer frequency 10MHz 10MHz
Input method CMOS CMOS
Data latch method CSB method CSB method
Package SSOP-B14 SSOP-B14
●Absolute Maximum Ratings(Ta=25℃)
Parameter Symbol Limits Unit Remarks
Power source voltage VCC -0.3 to 7.0 V -
Terminal voltage VIN -0.3 to VCC V -
Storage temperature range TSTG -55 to 125 ℃ -
Power dissipation PD 400*
1
mW -
*1 Derated at 4.0mW/ ℃ at Ta>25℃
*2 This product is not robust against radiation.
No.11052EBT04