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R2A20154SP Datasheet(PDF) 1 Page - Renesas Technology Corp

Part # R2A20154SP
Description  8-bit 4ch D/A Converter with Buffer Amplifiers for I2C BUS (Corresponds to Fast mode)
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R2A20154SP Datasheet(HTML) 1 Page - Renesas Technology Corp

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New Product
R03DS0014EJ0100
Rev.1.00
2011.09.05
Page 1 of 8
R03DS0014EJ0100 Rev.1.00
2011.09.05
8-bit 4ch D/A Converter with Buffer Amplifiers for I2C BUS (Corresponds to Fast mode)
R2A20154NS/SP
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.
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
8
7
6
5
1
2
3
4
I2C BUS transceiver
Channel
decoder
Power on
reset
Vcc
SCL
SDA
GND
Ao1
Ao2
Ao3
Ao4
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.
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.
8-bit upper
segment R-2R
8-bit latch
+
-
8
8-bit upper
segment R-2R
8-bit latch
+
-
8-bit upper
segment R-2R
8-bit latch
+
-
8-bit upper
segment R-2R
8-bit latch
+
-


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