MAS8444AN Micro Analog Systems Oy, MAS8444AN Datasheet

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MAS8444AN

Manufacturer Part Number
MAS8444AN
Description
Manufacturer
Micro Analog Systems Oy
Datasheet

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Part Number:
MAS8444AN
Manufacturer:
N/A
Quantity:
20 000
DESCRIPTION
The MAS8444a comprises eight digital to analog
converters (DACs) each controlled by a two-wire I
bus. The DACs are individually programmed using an
6-bit word to select an output from one of 64 voltage
FEATURES
• Rail to rail output stages
• Octal 6-bit DACs on a single monolithic chip
• Power supply range from +5V to +12V
• -25 C to +85 C temperature range
• 16-pin PDIL and SO package
• pin to pin compatibility with TDA8444
BLOCK DIAGRAM
Vmax 2
SDA 3
SCL 4
A0 5
A1 6
A2 7
VDD
Reference
Generator
Voltage
1
I C Bus
Receiver
2
GND
Slave
8
2
C
6-BIT DAC
6-BIT DAC
6-BIT DAC
• Eight discrete DACs
• I
• Voltage output
APPLICATION
• Trimmer replacement
• Automatic gain control
• High resolution monitors
2
C-bus slave receiver
steps. The maximum output voltage of all DACs is set
by Vmax. At power-on all outputs are set to their lowest
value. The I
address pins (2 in the SO16 package).
OCTAL 6-BIT TRIMMER IC
2
C-bus slave receiver has 3 programmable
6-BIT DAC
6-BIT DAC
6-BIT DAC
6-BIT DAC
6-BIT DAC
MAS8444A
DAC7
DAC6
DAC4
DAC3
DAC2
DAC1
DAC0
DAC5
DA8444A.005
May 31, 1996
1

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MAS8444AN Summary of contents

Page 1

DESCRIPTION The MAS8444a comprises eight digital to analog converters (DACs) each controlled by a two-wire I bus. The DACs are individually programmed using an 6-bit word to select an output from one of 64 voltage FEATURES • Rail to rail ...

Page 2

... PIN CONFIGURATION PDIP 16 MAS8444AN 1 VDD Vmax 2 SDA 3 4 SCL GND 8 PIN DESCRIPTION Pin name Pin no. PDIP1 6 VDD 1 Vmax 2 SDA 3 SCL GND 8 DAC0 9 DAC1 10 DAC2 11 DAC3 12 DAC4 13 DAC5 14 DAC6 15 DAC7 16 16 DAC7 15 DAC6 14 DAC5 ...

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 (except pins 1 and 8) Total power dissipation Operating ambient temperature range Storage temperature range Parameter Supply Voltage ...

Page 4

ELECTRICAL CHARACTERISTICS Address Input (pins Parameter Input voltage range Input low voltage Input high voltage Input current low Input current high Parameter Input current Effective voltage range DAC Outputs (pin 9 to 16) Parameter Output voltage range ...

Page 5

ELECTRICAL CHARACTERISTICS Linearity Parameter Differential nonlinearity Integral nonlinearity FUNCTIONS bus 2 The MAS8444A I C-bus interface is a receiver-only slave. Data is accepted from the Address ...

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 MAS8444A ICs can be operated independently from one I No ...

Page 7

APPLICATION INFORMATION Micro Controller +12v 100nF + Clock 4 3 Data 16 DAC7 DAC6 14 DAC5 DAC4 12 DAC3 11 DAC2 10 DAC1 DAC0 A 1 ...

Page 8

PACKAGE OUTLINES 16 LEAD TLIN E (300 6.10 7.11 5-7° 7. LEAD SO OUTLINE (300 MIL BODY) 0.33 x 45° 5° TYP. 5° TYP. 5° TYP. ...

Page 9

... ORDERING INFORMATION Product Code Product MAS8444AN OCTAL 6-BIT TRIMMER-IC MAS8444AS OCTAL 6-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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