R2A20154NS Datasheet, PDF (1/9 Pages) Renesas Technology Corp – 8-bit 4ch D/A Converter with Buffer Amplifiers for I2C BUS (Corresponds to Fast mode)

New Product
R2A20154NS/SP
8-bit 4ch D/A Converter with Buffer Amplifiers for I²C BUS (Corresponds to Fast mode)
R03DS0014EJ0100
Rev.1.00
2011.09.05
Description
The R2A20154 is an integrated circuit semiconductor of CMOS structure with 4 channels of built in D/A
converters with output buffer operational amplifiers. It is the electrical characteristic improvement version of
the M62334.
The input is 2-wires serial method is used for the transfer format of digital data to allow connection with a
microcomputer with minimum wiring. This IC corresponds to Fast mode of I²C BUS standard.
The output buffer operational amplifier employs AB class output circuit with sync and source drive capacity of
1.0mA or more, and it operates in the whole voltage range from Vcc to ground.
Features
 Guarantee Differential nonlinearity error : +/-0.7LSB, Nonlinearity error : +/-1.0LSB
 Digital data transfer format: I²C BUS serial data method (Corresponds to Fast mode: 400kHz)
 Output buffer operational amplifier
It operates in the whole range from Vcc to ground.
 High output current drive capacity: 1mA over
 The very small size SON-8 package is added to the lineup.
Application
Conversion from digital data to analog control data for home-use and industrial equipment.
Signal gain control or automatic adjustment of LCD-TV, PDP-TV or LCD display-monitor.
Blurring correction control or various control of the interchangeable lens of digital camera
Block Diagram
Vcc
SCL
SDA
GND
8
7
6
5
Power on
reset
I²C BUS transceiver
Channel
8
decoder
8-bit latch
8-bit latch
8-bit latch
8-bit latch
8-bit upper
8-bit upper
8-bit upper
8-bit upper
segment R-2R segment R-2R segment R-2R segment R-2R
+-
+-
+-
+-
1
Ao1
R03DS0014EJ0100 Rev.1.00
2011.09.05
2
Ao2
3
Ao3
4
Ao4
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