MAS9181BN Micro Analog Systems Oy, MAS9181BN Datasheet

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MAS9181BN

Manufacturer Part Number
MAS9181BN
Description
Manufacturer
Micro Analog Systems Oy
Datasheet

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DESCRIPTION
The MAS9181 comprises eight digital to analog
converters (DACs) each controlled by a two-wire I
bus. The DACs are individually programmed using an 8-
bit word to select an output from one of 256 voltage
steps. The maximum output voltage of all DACs is set
FEATURES
· Rail to rail output stages
· Octal 8-bit DACs on a single monolithic chip
· Power supply range from +5 V to +12 V
· -20°C to +85°C temperature range
· 16-pin PDIL and SO package
· Power-up reset
BLOCK DIAGRAM
Vmax
SDA
SCL
A1
A2
A0
VDD
Reference
Generator
Voltage
I C Bus
Receiver
2
Slave
GND
2
C
8-BIT DAC
8-BIT DAC
8-BIT DAC
· Eight discrete DACs
· I
· Voltage output
2
by Vmax and the resolution is Vmax/256. At power-on all
outputs are set to their lowest value. The I
receiver has 3 programmable address pins (2 for
MAS9181 CS).
APPLICATION
· Trimmer replacement
· AGC/AFT or TVs and VCRs
· Graphic equalizers
· High resolution monitors
C-bus slave receiver
OCTAL 8-BIT TRIMMER IC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
8-BIT DAC
MAS9181B/C
DAC7
DAC6
DAC4
DAC3
DAC2
DAC1
DAC0
DAC5
13 October, 1999
2
C-bus slave
DA9181.006
1

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MAS9181BN Summary of contents

Page 1

DESCRIPTION The MAS9181 comprises eight digital to analog converters (DACs) each controlled by a two-wire I bus. The DACs are individually programmed using an 8- bit word to select an output from one of 256 voltage steps. The maximum output ...

Page 2

... SCL GND 8 DAC0 9 DAC1 10 DAC2 11 DAC3 12 DAC4 13 DAC5 14 DAC6 15 DAC7 16 *1 MAS9181BN (PDIP16) *2 MAS9181CS (SO16) SO16 16 DAC7 VDD 15 DAC6 Vmax 14 DAC5 SDA 13 DAC4 SCL NC 12 DAC3 A0 11 DAC2 A1 10 DAC1 GND 9 DAC0 I Positive supply voltage ...

Page 3

ABSOLUTE MAXIMUM RATINGS Parameter Supply Voltage Supply current 2 I C-bus line voltage Input voltage Output voltage Maximum current on any pin total power dissipation Operating ambient temperature range Storage temperature range RECOMMEDED OPERATION CONDITIONS Parameter Supply Voltage Supply current ...

Page 4

ELECTRICAL CHARACTERISTICS Address Input (pins (All voltages are with respect to GND; Tamb = -20 Parameter Input voltage range Input low voltage Input high voltage Input current low Input current high Vmax Control Input for DAC maximum ...

Page 5

FUNCTIONS bus 2 The MAS9181 I C-bus interface is a receiver- only slave. Data is accepted from the I format Address byte S Start condition P Stop ...

Page 6

FUNCTIONS Address Byte Valid addresses are 40, 42, 44, 46, 48, 4A, 4C, 4E(hex), depending on the programming of bits A2, A1 and A0. With these addresses eight MAS9181 ICs can be operated independently from one I addresses ...

Page 7

APPLICATION INFORMATION 5k Micro Controller +12v VDD 100nF GND + Clock 4 SCL 3 SDA Data 13 October, 1999 16 DAC7 15 DAC6 14 DAC5 13 DAC4 12 DAC3 11 DAC2 10 DAC1 ...

Page 8

PACKAGE OUTLINES 16 LEAD PDIP OUTLINE (300 MIL BODY) 6.10 7.11 5-7° 7.62 BSC 16 LEAD SO OUTLINE (300 MIL BODY) 0.33 x 45° 5° TYP. 5° TYP. 5° TYP. 18.93 21.33 0.36 1.15 1.77 0.56 1 PIN 1.27 5° ...

Page 9

... ORDERING INFORMATION Product Code Product MAS9181BN OCTAL 8-BIT TRIMMER-IC MAS9181CS OCTAL 8-BIT TRIMMER-IC 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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