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DA9184A.001 September 7, 1998
MAS9184A
12 X 8-bit D to A Converter
* 12-bit serial data input * Highly stable output buffer * Serial data output for Daisy-Chaining
DESCRIPTION
The MAS9184 is a CMOS structured integrated circuit with 12 built-in D to A converter channels and 12 corresponding output buffer operational amplifiers. A simple 3-wire serial interface transfers digital data from the micro controller. The output buffers operate in the entire voltage range from ground to the positive power supply rail.
FEATURES
* * * * * Twelve 8-bit DACs on a single monolithic chip Voltage level output SO 20 package Single +5V supply Power-on reset
APPLICATION
* * * High resolution monitors Automatic gain control Trimmer replacement
BLOCK DIAGRAM
D0
DI CLK
12-bit Shift Register
8-bit data
8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC
DAC11 DAC10 DAC9 DAC8 DAC7 DAC6
LD
Address Decoder
8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC
DAC5 DAC4 DAC3 DAC2 DAC1 DAC0
VDD GND
VCC VSS
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DA9184A.001 September 7, 1998
PIN CONFIGURATION
SO20
Vss 1 2 3 4 5 6 7 20 GND 19 DAC1 18 DAC0 17 DI 16 CLK 15 LD 14 DO 13 DAC10 12 DAC11 11 Vcc
DAC2 DAC3 DAC4 DAC5 DAC6 DAC7
DAC8 8 DAC9 9 VDD 10
PIN DESCRIPTION
Pin name VSS DAC2 DAC3 DAC4 DAC5 DAC6 DAC7 DAC8 DAC9 VDD VCC DAC10 DAC11 DO LD CLK DI DAC0 DAC1 GND SO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Function D/A converter low level reference voltage input terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal D-A converter high level reference voltage input terminal Power supply terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal Serial data output terminal Latch data terminal Serial clock input terminal Serial data input terminal 8-bit D/A converter output terminal 8-bit D/A converter output terminal Digital and analog ground
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DA9184A.001 September 7, 1998
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage High level reference voltage Digital input voltage Output voltage Power dissipation Operating temperature Storage temperature Symbol VCC VDD Vin Vout PD Tamb TS Conditions Min -0.3 -0.3 -0.3 -0.3 -20 -55 Max 7.0 7.0 VCC+0.3 VCC+0.3 150 +85 +125 Unit V V V V mW o C o C
RECOMMENDED OPERATION CONDITIONS
(VCC =VDD = 5V10%, GND = VSS = 0V, Ta = -20 C to +85 C, unless otherwise noted)
o o
Parameter Supply Voltage Supply current Input leakage current
Symbol VCC ICC IILK
Conditions CLK = 1MHz Vin = 0V to VCC
Min 4.5 -10
Typ 5.0 2.5
Max 5.5 10
Unit V mA uA
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DA9184A.001 September 7, 1998
ELECTRICAL CHARACTERISTICS
Digital inputs
(VCC =VDD = 5V10%, GND = VSS = 0V, Ta = -20 C to +85 C, unless otherwise noted)
o o
Parameter Input low voltage Input high voltage Digital outputs
Symbol VIL VIH
Conditions
Min 0.7VCC
Typ
Max 3.0VCC
Unit V V
(VCC =VDD = 5V10%, GND = VSS = 0V, Ta = -20 C to +85 C, unless otherwise noted)
o
o
Parameter Output low voltage Output high voltage Analog outputs
Symbol VOL VOH
Conditions IOL = 400uA IOH = -400uA
Min VCC-0.4
Typ
Max 0.4
Unit V V
(VCC =VDD = 5V10%, GND = VSS = 0V, Ta = -20 C to +85 C, unless otherwise noted)
o
o
Parameter Reference voltage pin current D/A high level reference voltage range D/A low level reference voltage range Buffer amplifier output voltage range Buffer amplifier output drive range Differential nonlinearity Nonlinearity Zero code error Full scale error Output capacitive load Buffer amplifier output impedance
Symbol IDD VDD VSS VAO IAO SDL SL SZERO SFULL CL RO
Conditions
Min 30 3.0 GND
Typ 50
Max 80 VCC VCC-3.0 VCC-0.1 VCC-0.2 5.0 1.0 1.5 1.0 1.0 0.1
Unit uA V V V V mA LSB LSB LSB LSB uF
IAO = 100uA IAO = 500uA
0.1 0.2 -5.0 -1.0 -1.5 -1.0 -1.0 5
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DA9184A.001 September 7, 1998
ELECTRICAL CHARACTERISTICS
AC Characteristics
(VCC =VDD = 5V10%, GND = VSS = 0V, Ta = -20 C to +85 C, unless otherwise noted)
o o
Parameter Clock `L' pulse width Clock `H' pulse width Rise time Fall time Data setup time data hold time LD setup time LD hold time LD `H' pulse width Data output delay time D/A output settling time Power-on reset level
Symbol tCKL tCKH tCR tCF tDCH tCHD tCHL tLDC tLDH tDO tLDD VCC
Conditions
Min 100 100
Typ
Max
Unit ns ns ns ns ns ns ns ns ns ns ns V
200 200 30 70 200 100 100 70 2.4 3.0
350 300 3.3
Timing diagram
tCR tCKH
tCF
CLK
tCKL tLDC
DI
tDCH tCHD tCHL tLDO tLDH
LD
DAC OUT
tDO
DO
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DA9184A.001 September 7, 1998
TIMING
Data format Address Data
D11 D10 D9 D8
Selected
DAC D7 D6 D5
DAC Data
D4 D3 D2 D1 D0
DAC Output Level 0 0 0 0 1 1 1 : : 0 0 0 1 1 1 1 0 0 1 1 0 0 1 : : 0 1 1 0 0 1 1 0 1 0 1 0 1 0 : : 1 0 1 0 1 0 1 VSS (VDD-VSS)/256x1+VSS (VDD-VSS)/256x2+VSS (VDD-VSS)/256x3+VSS (VDD-VSS)/256x4+VSS (VDD-VSS)/256x5+VSS (VDD-VSS)/256x6+VSS : : (VDD-VSS)/256x249+VSS (VDD-VSS)/256x250+VSS (VDD-VSS)/256x251+VSS (VDD-VSS)/256x252+VSS (VDD-VSS)/256x253+VSS (VDD-VSS)/256x254+VSS (VDD-VSS)/256x255+VSS
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
X DAC0 DAC1 DAC2 DAC3 DAC4 DAC5 DAC6 DAC7 DAC8 DAC9 DAC10 DAC11 X X X
0 0 0 0 0 0 0 : : 1 1 1 1 1 1 1
0 0 0 0 0 0 0 : : 1 1 1 1 1 1 1
0 0 0 0 0 0 0 : . 1 1 1 1 1 1 1
0 0 0 0 0 0 0 : : 1 1 1 1 1 1 1
0 0 0 0 0 0 0 : : 1 1 1 1 1 1 1
X = Don't care condition
Data format Timing
MSB
LSB D10 D9 D8 D2 D1 D0
DI
D11
CLK
LD
DAC OUT
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DA9184A.001 September 7, 1998
APPLICATION AND TEST CIRCUIT INFORMATION
+5v
+5v
11 VCC
10 VDD DO 14
MAS9184
Micro Controller
5k 5k 5k
Data Out
DAC11
13 12 9 8 7 6 5 4 3 2 19 18
Clock Data In Latch
16 17 15
DAC10 CLK DI LD DAC9 DAC8 DAC7 DAC6 DAC5 DAC4 DAC3 DAC2 DAC1 DAC0 VSS 1 GND 20
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DA9184A.001 September 7, 1998
PACKAGE OUTLINES
20 LEAD SO OUTLINE (300 MIL BODY)
0.33 x 45 5 TYP. 5TYP 0.25 RAD. MIN. 0.94 1.12
1.27 5 TYP. TYP.
0.36 0.48
0-0.13 RAD.
SEATING PLANE
5 TYP.
5 TYP.
. 0.86 TYP
12.60 13.00
10.01 10.64
PIN 1
ALL MEASUREMENTS IN mm
7.39 7.59
0.10 0.30
2.36 2.64
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DA9184A.001 September 7, 1998
ORDERING INFORMATION
Product Code MAS9184AS MAS9184AS-T Product 12 x 8-bit D to A Converter 12 x 8-bit D to A Converter Package 20 Pin SO 0.3" 20 Pin SO 0.3" Comments T&R
LOCAL DISTRIBUTOR
MICRO ANALOG SYSTEMS OY CONTACTS
Micro Analog Systems Oy Kamreerintie 2, P.O. Box 51 FIN-02771 Espoo, FINLAND Tel. +358 9 80 521 Fax +358 9 805 3213 http://www.mas-oy.com
NOTICE Micro Analog Systems Oy reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products. Micro Analog Systems Oy assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights unless otherwise specified in this data sheet, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Micro Analog Systems Oy makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
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