AD7302:  2.7 V to 5.5 V, Parallel Input Dual Voltage Output 8-Bit DAC

The AD7302 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. The AD7302 has a ...More

AD7302:  2.7 V to 5.5 V, Parallel Input Dual Voltage Output 8-Bit DAC

Product Description

The AD7302 is a dual, 8-bit voltage out DAC that operates from a single +2.7 V to +5.5 V supply. Its on-chip precision output buffers allow the DAC outputs to swing rail to rail. The AD7302 has a parallel microprocessor and DSP-compatible interface with high speed registers and double buffered interface logic. Data is loaded to the registers on the rising edge of CS or WR and the A/B pin selects either DAC A or DAC B.

Reference selection for AD7302 can be either an internal reference derived from the VDD or an external reference applied at the REFIN pin. Both DACs can be simultaneously updated using the asynchronous LDAC input and can be cleared by using the asynchronous CLR input.

The low power consumption of this part makes it ideally suited to portable battery operated equipment. The power consumption is less than 10 mW at 3.3 V, reducing to 3 µW in powerdown mode.

The AD7302 is available in a 20-pin plastic dual-in-line package, 20-lead SOIC and a 20-lead TSSOP package.

Features

  • Two 8-Bit DACs in One Package
  • 20-Lead DIP/SOIC/TSSOP Package
  • +2.7 V to +5.5 V Operation
  • Internal and External Reference Capability
  • DAC Power-Down Function
  • Parallel Interface
  • On-Chip Output Buffer Rail-to-Rail Operation
  • Low power Operation 3 mA max @ 3.3 V
  • Power-Down to 1 µA max @ 25°C

Diagrams

AD7302 Diagram
Functional Block Diagram for AD7302

Specifications

Resolution (Bits) 8bit
DAC Update Rate 833kSPS
DAC Settling Time 1.2µs
# DAC Outputs 2
DAC Type Voltage Out
DAC Input Format Par
Output FSR (Uni Vdd),(Uni Vdd/2),(Uni Vref)
Ref Int/Ext Int/Ext
Supply Vnom Single(+3),Single(+3.3),Single(+5)
Pwr Diss 24.8mW
Package DIP,SOIC,SOP

AD5412 - Single Channel, 12-Bit, Serial Input, Current Source & Voltage Output DAC

AD5765 - Complete Quad, 16-Bit, High Accuracy, Serial Input, ±5 V DAC

AD5422 - Single Channel, 16-Bit, Serial Input, Current Source & Voltage Output DAC

AD5763 - Complete Dual, 16-Bit High Accuracy, Serial Input, ±5 V DAC

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Part# Bits Update Rate Settling Time # Outputs
AD5428 8 21.3MSPS 30ns 2
AD5429 8 2.47MSPS 30ns 2
AD7528 8 5.6MSPS 180ns 2
AD7628 8 2.9MSPS 350ns 2
AD7302 8 833KSPS 1.2µs 2
AD9709 8 125MSPS 35ns 2
AD7303 8 833KSPS 1.2µs 2
AD5424 8 20.4MSPS 30ns 1
AD5425 8 2.47MSPS 100ns 1
AD5426 8 2.47MSPS 50ns 1
AD5450 8 2.7MSPS 100ns 1
Pricing, Packaging & Availability

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  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
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Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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