AD5681R

PRODUCTION

Tiny 12-Bit SPI nanoDAC+, with ±1 LSB INL and 2 ppm/°C Reference

Part Models
4
1ku List Price
Starting From $2.24
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Part Details

  • Ultrasmall package: 2 mm × 2 mm, 8-lead LFCSP
  • High relative accuracy (INL): ±2 LSB maximum at 16 bits
  • AD5683R/AD5682R/AD5681R
    • Low drift, 2.5 V reference: 2 ppm/°C typical
    • Selectable span output: 2.5 V or 5 V
  • Total unadjusted error (TUE): 0.06% of FSR maximum
    • Offset error: ±1.5 mV maximum
    • Gain error: ±0.05% of FSR maximum
  • Low glitch: 0.1 nV-sec
  • High drive capability: 20 mA
  • Low power: 1.2 mW at 3.3 V
  • Independent logic supply: 1.62 V logic compatible
  • Wide operating temperature range: −40°C to +105°C
  • Robust 4 kV HBM ESD protection
AD5681R
Tiny 12-Bit SPI nanoDAC+, with ±1 LSB INL and 2 ppm/°C Reference
AD5683R/AD5682R/AD5681R Functional Block Diagram AD5683R/AD5682R/AD5681R Functional Block Diagram AD5681R/AD5682R/AD5683R/AD5683 Pin Configuration AD5683R-1/AD5681R-1 Pin Configuration AD5683R-1/AD5681R-1 Pin Configuration
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Documentation

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Software Resources


Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • AD5681R

Precision DAC Error Budget Tool

The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.

Open Tool

IBIS Model 1

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-AD5683RARDZ

Evaluation Board for AD5683R (SPI, MSOP)

Features and Benefits

  • Full-featured evaluation boards for the AD5683R (SPI, MSOP)
  • On-board reference
  • Various link options
  • PC control in conjunction with the Analog Devices, Inc., EVALSDP-CK1Z (SDP-K1) controller board

Product Details

This user guide details the operation of the EVAL-AD5683RARDZ (serial peripheral interface (SPI)) evaluation board and the EVALAD5693RARDZ (I2C) evaluation board for the AD5683R (SPI) and the AD5693R (I2C), respectively, which are both single-channel, serial voltage output digital-to-analog converters (DACs).

The EVAL-AD5683RARDZ and the EVAL-AD5693RARDZ are designed to facilitate quick prototyping of the AD5683R and AD5693R circuits, thereby reducing design time. Both devices operate from a single 2.7 V to 5.5 V supply. Additionally, these devices also incorporate an internal 2.5 V on-board reference. A different reference voltage can be applied via the EXT_REF SMB connector, if required. While sharing common features, the two DACs differ in their digital interface protocols. The AD5683R employs SPI, while the AD5693R employs I2C.

The EVAL-AD5683RARDZ and the EVAL-AD5693RARDZ interface with the USB port of a PC via the System Demonstration Platform (SDP) controller board (EVAL-SDP-CK1Z (SDP-K1)). The Analysis | Control | Evaluation (ACE) software is available for download from both the EVAL-AD5683RARDZ product page and the EVALAD5693RARDZ product page. This software can be used with either evaluation board to allow the user to program the AD5683R and AD5693R, respectively. A PMOD connection is also available to allow the connection of a microcontroller to either evaluation board. Note that when a microcontroller is used through the PMOD connection, the EVAL-SDP-CK1Z (SDP-K1) must be disconnected, and the user cannot use the ACE software.

The EVAL-AD5683RARDZ and the EVAL-AD5693RARDZ both require the EVAL-SDP-CK1Z (SDP-K1) controller board, which is available for purchase from Analog Devices.

For full details on the AD5683R and the AD5693R, see the AD5683R and AD5693R data sheets, which must be consulted in conjunction with this user guide when using either of the EVALAD5683RARDZ or the EVAL-AD5693RARDZ evaluation boards.

eval board
EVAL-AD5683R

AD5683R Evaluation Board

Product Details

The Analog Devices, Inc., AD5683R evaluation board (EVAL-AD5683RSDZ) is designed to help customers quickly prototype new AD5683R circuits and reduce design time. The AD5683R operates from a single 2.7 V to 5.5 V supply. The part incorporates an internal 2.5 V on-board reference to give an output voltage span of 2.5 V or 5 V.

The evaluation board interfaces to the USB port via the SDP board. Software is available with the evaluation board, which allows the user to easily program the AD5683R.


This evaluation board requires the EVAL-SDP-CB1Z board. This is available on the Analog Devices website.


Full data on the AD5683R may be found in the AD5683R data sheet available from Analog Devices and should be consulted in conjunction with this user guide when using the evaluation board.

EVAL-AD5683RARDZ
Evaluation Board for AD5683R (SPI, MSOP)
EVAL-AD5683RARDZ Board Photo Angle View EVAL-AD5683RARDZ Board Photo Top View EVAL-AD5683RARDZ Board Photo Bottom View
EVAL-AD5683R
AD5683R Evaluation Board

Reference Designs

Simplified Schematic of the Analog Output Circuit
CN0229 Circuits from the lab

4-Channel, Flexible, Configurable, Voltage, and Current Output Circuit for I/O Card and PLC Applications

Features and Benefits

  • Quad channel Current and Voltage Outputs
  • 16-bit Resolution for PLC Systems
  • Digitally Isolated from Application
CN0229
4-Channel, Flexible, Configurable, Voltage, and Current Output Circuit for I/O Card and PLC Applications
Simplified Schematic of the Analog Output Circuit

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