AD3531

RECOMMENDED FOR NEW DESIGNS

4-Channel, 16-Bit Voltage Output DAC, SPI

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Overview

  • 16-bit resolution, ±3 LSB16 INL, ±1 LSB16 DNL
  • TUE: ±0.22% of FSR maximum
  • Offset error: ±1.5mV maximum
  • Gain error: ±0.26% of FSR maximum
  • Guaranteed sourcing current of 100 mA
  • Ultra-low headroom: 12mV at 20mA load
  • 2.5V internal voltage reference, 5ppm/°C, typical
  • 55nV/√Hz noise spectral density (external reference)
  • 96nV/√Hz noise spectral density (internal reference)
  • Output voltage, current, and die temperature monitors
  • 50MHz SPI write and read
  • 2.7V to 5.5V power supply range
  • 1.2V or 1.8V compatible digital interface
  • Operating temperature range: −40°C to +125°C
  • Small package: 2.1 mm × 2.2 mm, 25-ball WLCSP

The AD3531/AD3531R are low power, 4-channel, 16-bit, buffered voltage output, digital-to-analog converters (DACs) that include software-programmable gain controls that result in full-scale output spans of 2.5V or 5V for reference voltages of 2.5V. The devices operate from single, 2.7V to 5.5V supply ranges and are guaranteed monotonic by design. The AD3531R also offers a 2.5V, 5ppm/°C internal reference that is disabled by default.

The devices include integrated multiplexers that allow monitoring of output voltages, currents, and internal die temperature. The AD3531/AD3531R are available in 2.1 mm × 2.2 mm, 25-ball WLCSP packages. The devices incorporate power-on reset (POR) circuits that ensure that the DACs output power up to and present at 16kΩ to ground until a valid write is executed. The DACs also contain power-down modes that reduce the current consumption down to 620μA, typical.

The serial peripheral interface (SPI) and MICROWIRE®-compatible, 4-wire serial interface operates on logic levels as low as 1.08V up to 1.98V and clock rates up to 50MHz.

APPLICATIONS

  • Optical transceivers
  • Test and measurement
  • Industrial automation
  • Data acquisition systems

AD3531
4-Channel, 16-Bit Voltage Output DAC, SPI
AD3531-AD3531R Functional Block Diagram AD3531-AD3531R Pin Configuration AD3531 Chip Illustration
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Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
EVAL-AD3531R

Evaluation Board for the AD3531/AD3531R 16-Bit, 4-Channel, Voltage Output DACs

Features and Benefits

  • Full featured evaluation board for the AD3531/AD3531R
  • Various link options
  • PC control when used in conjunction with the Analog Devices, Inc., SDP board

Product Details

This user guide details the operation of the EVAL-AD3531RARDZ for the AD3531/AD3531R 16-bit, 4-channel, voltage output, digitalto- analog converters (DACs).

The EVAL-AD3531RARDZ allows users to quickly prototype the AD3531/AD3531R circuits and reduce design time. The AD3531/ AD3531R operate from single 2.7V to 5.5V supply ranges. The AD3531/AD3531R incorporate internal 2.5V references to give output voltages of 2.5V or 5V. The EVAL-AD3531RARDZ also incorporates an additional on-board voltage reference, the ADR4525.

The EVAL-AD3531RARDZ interfaces to the USB port of a PC via a system demonstration platform (SDP-K1) board. The Analysis | Control | Evaluation (ACE) software is available for download from the EVAL-AD3531RARDZ product page to use with the evaluation board to allow the user to program the AD3531/AD3531R devices. A peripheral module interface (PMOD) connection is also available to allow the connection of microcontrollers to the evaluation board without the SDP-K1 board. When a microcontroller is used through the PMOD connection, the SDP-K1 board must be disconnected, and the user is unable to operate the ACE software.

The EVAL-AD3531RARDZ is compatible with Analog Devices, Inc., SDP-K1 board, which can be purchased separately.

For full details, see the AD3531/AD3531R data sheet, which must be used in conjunction with this user guide when using the EVALAD3531RARDZ.

EVAL-AD3531R
Evaluation Board for the AD3531/AD3531R 16-Bit, 4-Channel, Voltage Output DACs
EVAL-AD3531R Evaluation Board Photo Angle View EVAL-AD3531R Evaluation Board Photo Top View EVAL-AD3531R Evaluation Board Photo Bottom View

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