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DS1851E-010

Description
Dual Temperature-Controlled NV Digital-to-Analog Converters
CategoryAnalog mixed-signal IC    converter   
File Size199KB,17 Pages
ManufacturerDALLAS
Websitehttp://www.dalsemi.com
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DS1851E-010 Overview

Dual Temperature-Controlled NV Digital-to-Analog Converters

DS1851E-010 Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerDALLAS
Reach Compliance Codeunknown
Is SamacsysN
Converter typeD/A CONVERTER
Enter bit codeBINARY
JESD-30 codeR-PDSO-G8
JESD-609 codee0
Maximum linear error (EL)0.78%
Number of digits8
Number of functions2
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
power supply3.3/5 V
Certification statusNot Qualified
Maximum slew rate1 mA
surface mountYES
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Base Number Matches1
DS1851
Dual Temperature-Controlled NV
Digital-to-Analog Converters
www.maxim-ic.com
FEATURES
§
§
§
§
§
§
§
Two temperature-controlled 8-bit Digital-to-
Analog Converters (DACs)
DAC settings changeable every 4°C
Access to temperature data and device
control through a 2-wire interface
Operates with +3.3V or +5V supplies
Packaging: 8-pin TSSOP
Operating temperature: -40ºC to +95ºC
Programming temperature: 0ºC to +70ºC
PIN ASSIGNMENTS
SDA
SCL
V
rg
GND
1
2
3
4
8
7
6
5
V
CC
V
rc
OutV
OutG
8-Pin TSSOP (173mil)
PIN DESCRIPTIONS
V
CC
GND
SDA
SCL
OutG
V
rg
OutV
V
rc
- +3.3V or +5V Power Supply
Input
- Ground
- 2-Wire Serial Data
Input/Output
- 2-Wire Serial Clock Input
- DAC Output with Respect to
Ground
- Reference Input from Ground
- DAC Output with Respect to
V
CC
- Reference Input from V
CC
ORDERING INFORMATION
DS1851E-010
8-pin 173mil TSSOP
DS1851E-010/T&R 8-pin Tape and Reel
TSSOP
DESCRIPTION
The DS1851 dual temperature-controlled nonvolatile (NV) DACs consists of two DACs, two EEPROM
look-up tables, and a direct-to-digital temperature sensor. Both of the DACs can be programmed with any
temperature coefficient, which means that any system temperature effects can be corrected without any
additional external devices. The DS1851 provides an ideal method for setting and temperature-
compensating bias voltages and currents in control applications using a minimal amount of external
circuitry.
The user-defined settings for both DACs are stored in two EEPROM look-up tables and can be accessed
over the industry-standard 2-wire serial bus, which consists of SDA and SCL pins. These look-up tables
can assign a unique output value to each DAC for every 4°C increment over the -40°C to +95°C range.
The output of the digital temperature sensor is also available as a 12-bit, two’s complement value over the
serial bus.
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