View MAS9187_733635.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

DA9187.002 29 January, 2004
MAS9187
12 X 8-bit D to A Converter
* 3-pin Serial Data Interface * Low Voltage Output Buffer
DESCRIPTION
MAS9187 is 12-channel 8-bit DAC, designed primarily for trimmer replacement. Device is controlled by a simple 3-line input. The output buffers operate in the entire voltage range from ground to the positive power supply rail. DAC is selected with four first bits in serial input data (SDI-pin) and the DAC output value is set according to the last 8 bits in serial input data.
FEATURES
* * * * * Twelve 8-bit DACs on a single monolithic chip Voltage level output TSSOP 20 package Single, low +1.8 V supply Power-on reset
APPLICATIONS
* * * High resolution monitors Automatic gain control Trimmer replacement
BLOCK DIAGRAM
SDI CLK
12-bit Shift Register
8-bit data
8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC
O12 O11 O10 O9 O8 O7
XCS
Address Decoder
8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC 8-BIT DAC
O6 O5 O4 O3 O2 O1
VREFHVREFL
VDD
GND
1 (7)
DA9187.002 29 January, 2004
PIN CONFIGURATION
VREFH O1 O2 O3 O4 O5 O6 XSHDN XCS GND
1 2 3 4 20 19 18 17
VDD XRESET O12 O11 O10 O9 O8 O7 SDI CLK
VREFH 1 O1 2
20 VDD 19 O12 18 O11 17 O10 16 O9 15 O8 14 O7 13 SDI 12 CLK 11 VREFL
O2 3 O3 4 O4 5 O5 6 O6 7 XSHDN 8 XCS 9 GND 10
MAS9187A1 YYWW
5 6 7 8 9 10
16 15 14 13 12 11
MAS9187A2 YYWW
Top view YYWW = year, week
PIN DESCRIPTION
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 MAS9187 A1 VREFH O1 O2 O3 O4 O5 O6 XSHDN XCS GND CLK SDI O7 O8 O9 O10 O11 O12 XRESET VDD MAS9187 A2 VREFH O1 O2 O3 O4 O5 O6 XSHDN XCS GND VREFL CLK SDI O7 O8 O9 O10 O11 O12 VDD Function DAC output reference high voltage DAC 1, address 0x0 DAC 2, address 0x1 DAC 3, address 0x2 DAC 4, address 0x3 DAC 5, address 0x4 DAC 6, address 0x5 Device analog part power-down signal (active low) Device enable signal (rising edge loads data to DAC) Device ground-pin Data clock / DAC output low reference voltage Serial input data / Data clock DAC 7, address 0x6 / Serial input data DAC 8, address 0x7 / DAC 7, address 0x6 DAC 9, address 0x8 / DAC 8, address 0x7 DAC 10, address 0x9 / DAC 9, address 0x8 DAC 11, address 0xA / DAC 10, address 0x9 DAC 12, address 0xB / DAC 11, address 0xA Device Digital part reset - middle code preset pin/DAC 12, address 0xB Device power supply pin
MAS9187 has two bonding options available:
* *
MAS9187A1, where VREFL pin is bonded to GND pin and XRESET pin can be used MAS9187A2, where XRESET pin is bonded to VDD pin and VREFL pin can be used
2 (7)
DA9187.002 29 January, 2004
ABSOLUTE MAXIMUM RATINGS
Parameter Power Supply (VDD to GND) Input Voltage Range (any other pin) Continuous Power Dissipation Storage Temperature Range -65 Symbol VDD Conditions Min -0.3 -0.3 Max +6.0 VDD + 0.3 1000 +150 Unit V V mW C
RECOMMENDED OPERATION CONDITIONS
Parameter Symbol Conditions Min Typ 3.6 Max 5.5 +85 Unit V C Note 1)
Supply Voltage Range VDD 2.7 Operating Temperature Temp -40 Range Note 1: MAS9187Axx3 and MAS9187Axx4 minimum supply voltage 1.8 V
ELECTRICAL CHARACTERISTICS
(VDD = 3.0 V 10% or 5.0 V 10%, VREFH = VDD, VREFL = 0V, -40C TA +85C unless otherwise noted)
DC Parameters
Digital Inputs
Parameter DAC Resolution DAC Differential Nonlinearity Error DAC Integral Nonlinearity Error DAC Full-scale Error DAC Zero Code Error DAC Output Resistance Reference Input Parameter REFH Voltage Range
Symbol N DNL INL GFSE BZSE ROUT
Conditions
Min -1 -1 -1 -1
Typ 8
Max +1 +1 +1 +1
Unit Bits LSB LSB LSB LSB
30
60
Symbol VREFH VREFL RREFH RREFL
Conditions VREFH > VREFL VREFH > VREFL
Min 0 0 5
Typ
Max VDD VDD
Unit
REFL Voltage Range (MAS9187A2 only) REFH Input Resistance REFL Input Resistance
10 10
k k
3 (7)
DA9187.002 29 January, 2004 Digital Input Parameter Digital Logic High Digital Logic Low Digital Input Current Power Supplies Parameter Power Supply Range Supply Current Supply Current Shutdown Current Symbol VDD IDD IDD ISHDN VDD = 3.60V VDD = 5.50V 0.5 Conditions Min 2.7 3 Typ Max 5.5 6 20 5 Unit V mA mA uA Note 1) Symbol VIH VIL IIL Conditions Min 0.7*VDD 0.3*VDD 1 uA Typ Max Unit
Note 1: MAS9187Axx3 and MAS9187Axx4 minimum supply voltage 1.8 V
AC Parameters
AC Characteristics Dynamic Performance Parameter Power Supply Sensitivity (100Hz) Vout Settling time (1/2 LSB error band) Crosstalk between adjacent outputs Switching Characteristics
(Minimum values at +25 C, VDD = 3.60 V)
o
Symbol PSRR TS CT
Conditions
Min
Typ 54 6 63
Max
Unit dB s dB
Parameter Input Clock High Pulse Width Input Clock Low Pulse Width Data Setup Time Data Hold Time XCS Fall to First Clock Pulse Fall XCS High Pulse Width RESET Pulse Width CLK Rise to XCS Rise Hold Time XCS Rise to CLOCK Rise Setup
Symbol TCH TCL TDS TDH TCLCL TCSW TRS TCSH TCS1
Conditions
Min
Typ 16 7 -5 5 16 22 28 22 -5
Max
Unit ns ns ns ns ns ns ns ns ns
4 (7)
DA9187.002 29 January, 2004
OPERATING MODES
DAC maximum output voltage is set using VREFH and VREFL pins (= 255/256 * (VREFH-VREFL)+VREFL) (note: VREFL=GND in case of MAS9187A1). XRESET pin is used for middle code preset: DAC registers are reset and middle code will appear at the DAC output. Serial input data is written to SDI while XCS is low. Data is read at CLK rising edge to on-chip shift register. Rising XCS-pin stops data reading and 12 CLK-cycles are used as the input data (4 address bits and 8 data bits). The last 12 bits before rising XCS are used as input data. Timing diagram
SDI
A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
CLK XCS VOUT
APPLICATION AND TEST CIRCUIT INFORMATION
+3.0v
DAC Register Load
20 VDD
1 VREFH
MAS9187A2
8 XSHDN O12 O11 CLK SDI XCS O10 O9 O8 9 O7 O6 O5 O4 O3 19 18 17 16 15 14 7 6 5 4 3 2
Controller
Clock Data In Latch
12 13
100 nF
GND 10
O2 O1 VREFL 11
5 (7)
DA9187.002 29 January, 2004
PACKAGE (TSSOP-20) OUTLINES
e/ 2 A VIEW B-B b
E
E1
c1
c
12 REF S
b1 INDEX AREA GAUGE PLANE e
R
A
0.25 12 REF D L1
L
A
A2
b
B B b VIEW A-A
A1
Symbol A A1 A2 b b1 c c1 D E E1 e L L1 R S
Min -0.05 0.85 0.19 0.19 0.09 0.09 6.40 4.30 0.50 0.09 --
Nom --0.90 -0.22 --6.50 6.4 BSC 4.40 0.65 BSC 0.60 1.00 REF -0.20
Max 1.10 0.15 0.95 0.30 0.25 0.20 0.16 6.60 4.50 0.75 ---
Unit mm mm mm mm mm mm mm mm mm mm mm mm mm mm
Dimensions do not include mold or interlead flash, protrusions or gate burrs. Reference Standard : JEDEC MO-153 .
SOLDERING INFORMATION
Resistance to Soldering Heat Maximum Temperature Maximum Number of Reflow Cycles Reflow profile Seating Plane Co-planarity Lead Finish According to RSH test IEC 68-2-58/20 2*220C 240C 2 Thermal profile parameters stated in JESD22-A113 should not be exceeded. http://www.jedec.org max 0.08 mm Solder plate 7.62 - 25.4 m, material Sn 85% Pb 15%
6 (7)
DA9187.002 29 January, 2004
ORDERING INFORMATION
Product Code MAS9187AUA1 MAS9187AUA2 MAS9187AUA3 MAS9187AUA4 Product 12 x 8-bit D to A Converter 12 x 8-bit D to A Converter 12 x 8-bit D to A Converter 12 x 8-bit D to A Converter Package TSSOP-20 TSSOP-20 TSSOP-20 TSSOP-20 Comments 0 V Reference Level Scalable Reference Level 0 V Reference Level, VDD min 1.8 V Scalable Reference Level, VDD min 1.8 V
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.
7 (7)

▲Up To Search▲

Price & Availability of MAS9187

	To Download MAS9187 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .