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AD7846:  16-Bit Voltage Output CMOS DAC

Product Details


The AD7846 is a 16-bit DAC constructed with Analog Devices' LC2MOS process. It has VREF+ and VREF- reference inputs and an on-chip output amplifier. These can be configured to give a unipooutput range (0 V to +5 V, 0 V to +10 V) or bipolar output ranges (±5 V, ±10 V).

The DAC uses a segmented architecture. The 4 MSBs in the DAC latch select one of the segments in a 16-resistor string. Both taps of the segment are buffered by amplifiers and fed to a 12-bit DAC, which provides a further 12 bits of resolution. This architecture ensures 16-bit monotonicity. Excellent integral linearity results from tight matching between the input offset voltages of the two buffer amplifiers.

In addition to the excellent accuracy specifications, the AD7846 also offers a comprehensive microprocessor interface. There are 16 data I/O pins, plus control lines (CS, R/W, LDAC and CLR). R/W and CS allow writing to and reading from the I/O latch. This is the readback function which is useful in ATE applications. LDAC allows simultaneous updating of DACs in a multi-DAC system and the CLR line will reset the contents the DAC latch to 00 . . . 000 or 10 . . . 000 depending on the state of R/W. This means that the DAC output can be reset to 0 V in both the unipolar and bipolar configurations.

The AD7846 is available in 28-pin plastic, ceramic, LCCC and PLCC packages.

FEATURES and BENEFITS

  • 16-Bit Monotonicity over Temperature
  • ±2 LSBs Integral Linearity Error
  • Microprocessor Compatible with Readback Capability
  • Unipolar or Bipolar Output
  • Multiplying Capability
  • Low Power (100 mW Typical)

Functional Block Diagram for AD7846

Documentation

Title Content Type File Type
AD7846: LC2MOS16-Bit Voltage Output DAC Data Sheet  (Rev G, 04/2010) (pdf, 615 kB) Data Sheets PDF
AD7846: Military Data Sheet  (Rev B, 05/2000) (pdf) Data Sheets PDF
ADI Warns Against Misuse of COTS Integrated Circuits  (pdf, 13 kB)
(Revised 1/03)
Invites Customer Participation in Creative Mil/Aero System Solutions
Recommended Reading PDF
Space Qualified Parts List  (pdf, 93 kB)
This document lists 67 (240+) space level products that are available from Analog Devices. Many of the products listed are state-of-the-art data conversion and signal processing products that were previously only available as commercial or military Class B products. Through our Space Products Group and MIL-PRF-38535 certified Level V (Class S) facility, we are pleased to offer these products to the space marketplace.
Aerospace Information PDF
Digital to Analog Converters ICs Solutions Bulletin  (pdf) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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.

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Price, packaging, availability

AD7846 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
5962-89697013A Status: Production LCC:CER LEADLESS CHIP CARR 28 Mil Tube, 42 $185.72 $167.88 N  Material Info PCN Purchase
5962-8969701XA Status: Production 28 ld Side-Brazed CerDIP 28 Mil Tube, 12 $123.80 $111.91 N  Material Info PCN Purchase
AD7846AP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $46.35 $39.39 N  Material Info PCN Purchase
AD7846APZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $44.33 $37.68 Y  Material Info PCN Purchase
AD7846BP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $53.35 $45.37 N  Material Info PCN Purchase
AD7846BPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Ind Tube, 39 $48.60 $41.33 Y  Material Info PCN Purchase
AD7846JN Status: Production 28 ld PDIP 28 Comm. Tube, 13 $30.09 $27.21 N  Material Info PCN Purchase
AD7846JNZ Status: Production 28 ld PDIP 28 Comm. Tube, 13 $27.42 $24.78 Y  Material Info PCN Purchase
AD7846JP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $32.14 $29.05 N  Material Info PCN Purchase
AD7846JP-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $29.05 N  Material Info PCN Purchase
AD7846JPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $29.28 $26.46 Y  Material Info PCN Purchase
AD7846JPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $26.46 Y  Material Info PCN Purchase
AD7846KN Status: Production 28 ld PDIP 28 Comm. Tube, 13 $38.02 $34.37 N  Material Info PCN Purchase
AD7846KNZ Status: Production 28 ld PDIP 28 Comm. Tube, 13 $34.63 $31.30 Y  Material Info PCN Purchase
AD7846KP Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $36.91 $33.37 N  Material Info PCN Purchase
AD7846KP-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $30.39 N  Material Info PCN Purchase
AD7846KPZ Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Tube, 39 $33.62 $30.39 Y  Material Info PCN Purchase
AD7846KPZ-REEL Status: Production PLCC:PLASTIC LEAD CHIP CAR 28 Comm. Reel, 750 - $30.39 Y  Material Info PCN Purchase
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.


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