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AD5621:  2.7 V to 5.5 V, <100 µA, 12-Bit nanoDAC®, SPI Interface in LFCSP and SC70

Product Details


The AD5601/AD5611/AD5621, members of the nanoDAC® family, are single, 8-/10-/12-bit, buffered voltage output DACs that operate from a single 2.7 V to 5.5 V supply, consuming typically 75 μA at 5 V. The parts come in a tiny LFCSP and SC70 packages. Their on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The AD5601/AD5611/AD5621 utilize a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards.

The reference for the AD5601/AD5611/AD5621 is derived from the power supply inputs and, therefore, gives the widest dynamic output range. The parts incorporate a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write to the device takes place.

The AD5601/AD5611/AD5621 contain a power-down feature that reduces current consumption to typically 0.2 μA at 3 V. They also provide software-selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface.

The low power consumption of these parts in normal operation makes them ideally suited to portable battery-operated equipment. The combination of small package and low power makes these nanoDAC devices ideal for level-setting requirements, such as generating bias or control voltages in space-constrained and power-sensitive applications.

Product Highlights

  1. Available in 6-lead LFCSP and SC70 packages.
  2. Low power, single-supply operation. The AD5601/ AD5611/AD5621 operate from a single 2.7 V to 5.5 V supply with a maximum current consumption of 100 μA, making them ideal for battery-powered applications.
  3. The on-chip output buffer amplifier allows the output of the DAC to swing rail-to-rail with a typical slew rate of 0.5 V/μs.
  4. Reference is derived from the power supply.
  5. High speed serial interface with clock speeds up to 30 MHz. Designed for very low power consumption. The interface powers up only during a write cycle.
  6. Power-down capability. When powered down, the DAC typically consumes 0.2 μA at 3 V. Power-on reset with brownout detection.

Applications

  • Voltage level setting
  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage and current sources
  • Programmable attenuators

FEATURES and BENEFITS

  • 6-lead LFCSP and SC70 packages
  • Micropower operation: 100 μA maximum at 5 V
  • Power-down typically to 0.2 μA at 3 V
  • 2.7 V to 5.5 V power supply
  • Guaranteed monotonic by design
  • Power-on reset to 0 V with brownout detection
  • 3 power-down functions
  • See Data Sheet for Additional Information

Functional Block Diagram for AD5621

Similar Products

  • AD5040: Full Accurate 3 V/5 V 14-Bit VOUT nanoDAC® Converter, Output Buffered, in a Sot 23
  • AD5060: Full Accurate 3 V/5 V 16-Bit VOUT nanoDAC® Converter, Output Buffered, in a Sot 23
  • AD5061: 16-Bit VOUT nanoDAC® SPI Interface 2.7 V to 5.5 V, in an SOT-23
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Design Tools,Models,Drivers & Software

Title Content Type File Type
AD5621 IBIS Model  (ibs) IBIS Models IBS
AD5446 IIO DAC Linux Driver (Wiki Site) Device Drivers HTML
AD5791 IIO DAC Linux Driver (Wiki Site) Device Drivers HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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.

Product Recommendations & Reference Designs

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Companion Products

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Recommended Power Supply References for the AD5621

  • For very low power, low noise, we recommend the ADR395 reference.
  • For low power, low noise in space saving applications, we recommend the ADR02.
  • For low power, LDO voltage in battery powered applications, we recommend the ADR125.
Recommended Amplifiers for the AD5621
  • For bipolar output applications, we recommend the AD820, OP295 or the ADA4096-2 rail-to-rail amplifiers.
  • For low power, V-I amplifier in process control applications, we recommend the AD8657.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD5621 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD5621ACPZ-RL7 Status: Production 6 ld LFCSP (3x2 w/1.6x1.4ep) 6 Ind Reel, 3000 - $0.89 Y  Material Info PCN Purchase Sample
AD5621AKSZ-500RL7 Status: Production 6 ld SC70 6 Ind Reel, 500 - $0.89 Y  Material Info PCN Purchase Sample
AD5621AKSZ-REEL7 Status: Production 6 ld SC70 6 Ind Reel, 3000 - $0.89 Y  Material Info PCN Purchase Sample
AD5621BKSZ-500RL7 Status: Production 6 ld SC70 6 Ind Reel, 500 - $1.02 Y  Material Info PCN Purchase Sample
AD5621BKSZ-REEL7 Status: Production 6 ld SC70 6 Ind Reel, 3000 - $1.02 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.

AD5621 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-AD5621EBZ Status: Production Evaluation Board $99.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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