MAS9187 MAS, MAS9187 Datasheet

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MAS9187

Manufacturer Part Number
MAS9187
Description
12 X 8-bit D to A Converter
Manufacturer
MAS
Datasheet
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.
FEATURES
BLOCK DIAGRAM
CLK
SDI
XCS
Twelve 8-bit DACs on a single monolithic chip
Voltage level output
TSSOP 20 package
Single, low +1.8 V supply
Power-on reset
VREFH VREFL
Register
Address
Decoder
12-bit
Shift
VDD
8-bit data
GND
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
APPLICATIONS
• 3-pin Serial Data Interface
• Low Voltage Output Buffer
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.
12 X 8-bit D to A Converter
High resolution monitors
Automatic gain control
Trimmer replacement
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
O10
O9
O12
O11
O8
O7
O6
O4
O3
O2
O1
O5
MAS9187
29 January, 2004
DA9187.002
1 (7)

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MAS9187 Summary of contents

Page 1

... 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. FEATURES • Twelve 8-bit DACs on a single monolithic chip • ...

Page 2

... O12 19 XRESET 20 VDD 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 VDD VREFH 20 O1 XRESET O12 ...

Page 3

... Continuous Power Dissipation Storage Temperature Range RECOMMENDED OPERATION CONDITIONS Parameter Supply Voltage Range Operating Temperature 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, -40°C ≤ Parameters ◆ Digital Inputs Parameter DAC Resolution ...

Page 4

... Digital Input Current ◆ Power Supplies Parameter Power Supply Range Supply Current Supply Current Shutdown Current Note 1: MAS9187Axx3 and MAS9187Axx4 minimum supply voltage 1 Parameters ◆ AC Characteristics Dynamic Performance Parameter Power Supply Sensitivity (100Hz) Vout Settling time (±1/2 LSB error band) ...

Page 5

... 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. ...

Page 6

PACKAGE (TSSOP-20) OUTLINES INDEX AREA Symbol Dimensions do not include mold or interlead flash, ...

Page 7

... Product Code Product MAS9187AUA1 12 x 8-bit Converter MAS9187AUA2 12 x 8-bit Converter MAS9187AUA3 12 x 8-bit Converter MAS9187AUA4 12 x 8-bit Converter LOCAL DISTRIBUTOR MICRO ANALOG SYSTEMS OY CONTACTS Micro Analog Systems Oy Kamreerintie 2, P.O. Box 51 FIN-02771 Espoo, FINLAND 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 ...

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