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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 228kB) Download   E-Mail

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.

Key Features		Applications/Uses
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: -40°C to +95°C Programming temperature: 0°C to +70°C		Automated Test Equipment (ATE) Automotive Sensors Building Energy Management (HVAC) Cell Phone Base Stations Cell Phones Digital Still Cameras Industrial Sensor Transmitters/Transducers Industrial Sensor Transmitters/Transducers Sensor-Force Sensors - Accelerometers Sensors - Humidity Sensors - Piezo-Resistive transducers Sensors - Temperature Sensors-Pressure Test and Measurement Equipment

Diagram

Block Diagram

Application Notes

Application Note 166: Interfacing Digitally Controlled Potentiometers and Resistors to Laser Drivers - DS1851 Application Note 1964: DS1851 Varactor Temperature Compensation - DS1851

Design Guides

Thermal Management (PDF)

Reliability Reports

Reliability Report: DS1851.pdf

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-3 of 3

DS1851	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1851E-010+T&R				Active	TSSOP;8 pin;20 mm² Outline Drawing: 21-0175 (PDF) Land Pattern: 90-0248 (PDF) Use pkgcode/variation: H8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1851E-010	N/A			Active	TSSOP;8 pin;20 mm² Outline Drawing: 21-0175 (PDF) Land Pattern: 90-0248 (PDF) Use pkgcode/variation: H8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1851E-010+				Active	TSSOP;8 pin;20 mm² Outline Drawing: 21-0175 (PDF) Land Pattern: 90-0248 (PDF) Use pkgcode/variation: H8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes and Comments

On-Chip Temperature Sensor, Nonvolatile Lookup Tables and Dual 8-Bit DAC's in a single 8-pin TSSOP

More Information

New Product Press Release 2001-11-13  Temperature Family by Product Type

Related Products

DS1847 Dual Temperature-Controlled NV Variable Resistor DS1848 Dual Temperature-Controlled NV Variable Resistor & Memory More Like This: View Product Families for Similar Products See All Precision DACs (4-12 Bits) (261 Products)

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

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