Datasheet

R03DS0020EJ0300

Rev.3.00

Jul 25, 2013

Page 1 of 9

R03DS0020EJ0300 Rev.3.00

Jul 25, 2013

8-bit 12ch D/A Converter with Buffer Amplifiers

R2A20169NP/SA/SP

Application

· Conversion from digital data to analog control data for home-use and industrial equipment.

Block Diagram

20

11

15

16

17

8

GND

CLK

LD

DI

Vcc

Ao1

18

14

DO

Ao12

13

12

Ao2

19

Ao11

12

D/A

8-bit latch

8-bit upper

segment R-2R

D/A converter

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

D0 1 2 3 4 5 6 7

8 9 10 11

Features

18

17

16

15

14

13

12

11

10

Serial data transfer type input can easily be used through a combination of three lines: DI, CLK, and LD.

Very small QFN package is added to lineup. It is suitable for a small mounting and reduces the mounting area.

Description

· Guarantee Nonlinearity error : +/-1.0LSB, Differential nonlinearity error : +/-0.7LSB

· Data transfer format: 12-bit serial data input type by 3 wire ( DI, SCK, LD )

· Output buffer op-amps: Operable over entire voltage range from almost ground to Vcc ( 0 to 5V )

· High output current capacity: +/-1mA or Higher

· Very small size package line-up: QFN-20 (pin pitch: 0.5mm), TSSOP-20 (pin pitch 0.65mm)

Number for TSSOP/SOP package

Number for QFN package

Power on

reset

12-bit shift register

D/A

8-bit latch

8-bit upper

segment R-2R

D/A converter

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

D/A

8-bit latch

9

3

2

Ao4

Ao3

1

4

Ao5

5

Ao6

6

Ao7

7

Ao8

8

9

10

Ao9

Ao10

19

20

1

2

3

4

5

6

7

8

Outputs incorporate buffer op-amps that have a drive capacity of 1 mA or above for both sink source, and

can operate over the entire voltage range from almost ground to Vcc ( 0 to 5V ), making peripheral elements

unnecessary and enabling configuration of a system with few component parts.

The R2A20169 is an integrated circuit semiconductor of CMOS structure with 12 channels of built in D/A

unnecessary and enabling configuration of a system with few component parts.

Channel

decoder