Add to Signal Chain Designer

AD7245A:  12-Bit DACPORT with Double-Buffered Parallel Input

Product Details


The AD7245A/AD7248A is an enhanced version of the industry standard AD7245/AD7248. Improvements include operation from 12 V to 15 V supplies, a ±1/2 LSB linearity grade, faster interface times and better full scale and reference variations with VDD. Additional features include extended temperature range operation for commercial and industrial grades.

The AD7245A/AD7248A is a complete, 12-bit, voltage output, digital-to-analog converter with output amplifier and Zener voltage reference on a monolithic CMOS chip. No external user trims are required to achieve full specified performance.

Both parts are microprocessor compatible, with high speed data latches and double-buffered interface logic. The AD7245A accepts 12-bit parallel data which is loaded into the input latch on the rising edge of CS or WR. The AD7248A has an 8-bit wide data bus with data loaded to the input latch in two write operations. For both parts, an asynchronous LDAC signal transfers data from the input latch to the DAC latch and updates the analog output. The AD7245A also has a CLR signal on the DAC latch which allows features such as power-on reset to be implemented.

The on-chip 5 V buried Zener diode provides a low noise, temperature compensated reference for the DAC. For single supply operation, two output ranges of 0 V to +5 V and 0 V to +10 V are available, while these two ranges plus an additional ±5 V range are available with dual supplies. The output amplifiers are capable of developing +10 V across a 2 kOhm load to GND.

The AD7245A/AD7248A is fabricated in linear compatible CMOS (LC2MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic. The AD7245A is available in a small, 0.3" wide, 24-pin DIP and SOIC and in 28-terminal surface mount packages. The AD7248A is packaged in a small, 0.3" wide, 20-pin DIP SOIC and in 20-terminal surface mount packages.

Functional Block Diagram for AD7245A

AD7245A Diagram
Functional Block Diagram for AD7245A

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD7245A Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD7245AAN Status: Production 24 ld PDIP 24 Ind Tube, 15 $11.71 $10.40 N  Material Info PCN Purchase
AD7245AANZ Status: Production 24 ld PDIP 24 Ind Tube, 15 $9.65 $8.57 Y  Material Info PCN Purchase
AD7245AAP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $14.49 $12.32 N  Material Info PCN Purchase
AD7245AAPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $12.54 $10.67 Y  Material Info PCN Purchase
AD7245AAQ Status: Production 24 ld CerDIP(300 Mil) 24 Ind Tube, 15 $17.16 $17.16 N  Material Info PCN Purchase
AD7245AAR Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $10.83 $9.61 N  Material Info PCN Purchase
AD7245AARZ Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $9.37 $8.32 Y  Material Info PCN Purchase
AD7245AARZ-REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $8.32 Y  Material Info PCN Purchase
AD7245ABN Status: Production 24 ld PDIP 24 Ind Tube, 15 $15.18 $13.61 N  Material Info PCN Purchase
AD7245ABNZ Status: Production 24 ld PDIP 24 Ind Tube, 15 $13.15 $11.77 Y  Material Info PCN Purchase
AD7245ABR Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $14.74 $13.21 N  Material Info PCN Purchase
AD7245ABR-REEL Status: Last Time Buy 24 ld SOIC - Wide 24 Ind Reel, 1000 - $11.43 N  Material Info PCN/PDN Purchase
AD7245ABRZ Status: Production 24 ld SOIC - Wide 24 Ind Tube, 31 $12.15 $10.89 Y  Material Info PCN Purchase
AD7245ABRZ-REEL Status: Production 24 ld SOIC - Wide 24 Ind Reel, 1000 - $10.89 Y  Material Info PCN Purchase
AD7245AQ Status: Production 24 ld CerDIP(300 Mil) 24 Ind Tube, 15 $16.10 $14.47 N  Material Info PCN Purchase
AD7245ATQ Status: Production 24 ld CerDIP(300 Mil) 24 Mil Tube, 15 $36.97 $36.97 N  Material Info PCN Purchase
AD7245JNZ Status: Production 24 ld PDIP 24 Comm. Tube, 15 $10.68 $9.11 Y  Material Info PCN Purchase
AD7245JP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $14.49 $12.32 N  Material Info PCN Purchase
AD7245JP-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $12.32 N  Material Info PCN Purchase
AD7245JPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $12.54 $10.67 Y  Material Info PCN Purchase
AD7245JPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $10.67 Y  Material Info Notify Me Purchase
AD7245SQ Status: Contact ADI 24 ld CerDIP(300 Mil) 24 Mil Tube, 15 $55.16 $39.05 N  Material Info PDN Contact ADI
Price Table Help

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.


沪ICP备09046653号
content here.
content here.

Review this Product

Close