AD5677R

RECOMMENDED FOR NEW DESIGNS

16-Channel, 12-/16-Bit nanoDAC+ with 2 ppm/°C Voltage Reference TC, I2C Interface

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Overview

  • High relative accuracy (INL): ±4 LSB maximum at 16 bits (AD5677R only)
    • TUE: ±0.14% of FSR maximum
    • Offset error: ±1.5 mV maximum
    • Gain error: ±0.06% of FSR maximum
    • Low drift, 2.5 V voltage reference TC: 2 ppm/°C typical
    • 40 mA short-circuit current
  • Wide operating ranges
    • −40°C to +125°C temperature range
    • 2.7 V to 5.5 V power supply range
  • Simplified implementation
    • User selectable gain of 1 or 2 (GAIN pin)
    • 1.8 V logic compatibility
  • 400 kHz I2C-compatible serial interface
  • 28-lead, 4 mm × 4 mm, RoHS compliant LFCSP

The AD5673R/AD5677R are low power, 16-channel, 12-/16-bit, buffered voltage output, digital-to-analog converters (DACs) that include a 2.5 V, 2 ppm/°C internal reference (enabled by default), and a gain select pin, resulting in a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The devices operate from a single, 2.7 V to 5.5 V supply range and are guaranteed monotonic by design. The AD5673R/AD5677R are available in a 28-lead lead frame chip scale package (LFCSP) and incorporate a power-on reset (POR) circuit that ensures that the DAC outputs power up to and remain at zero scale or midscale until a valid write. The AD5673R/AD5677R contain a power-down mode that reduces the current consumption to 2 µA typical.

Applications

  • Optical transceivers
  • Base station power amplifiers
  • Process control (programmable logic controller (PLC) input/output cards)
  • Industrial automation
  • Data acquisition systems

Product Highlights

  1. High channel density: 16 channels in 4 mm × 4 mm LFCSP.
  2. High relative accuracy (INL).
    AD5673R (12-bit): ±1 LSB maximum.
    AD5677R (16-bit): ±4 LSB maximum.
  3. Low drift, 2.5 V, on-chip reference.

AD5677R
16-Channel, 12-/16-Bit nanoDAC+ with 2 ppm/°C Voltage Reference TC, I2C Interface
AD5673R-AD5677R Functional Block Diagram AD5673R-AD5677R Pin Configuration
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Software Resources


Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • AD5677R

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-AD5677R

AD5677R Evaluation Board

Features and Benefits

  • Full featured evaluation board for the AD5677R
  • Compatible with the AD5673R
  • Various link options
  • PC control in conjunction with the Analog Devices, Inc., SDP-B board

Product Details

This user guide describes the operation of the EVALAD5677RSDZ for the AD5677R 16-bit, 16-channel, voltage output, digital-to-analog converter (DAC). The EVALAD5677RSDZ is also compatible with the AD5673R.

The EVAL-AD5677RSDZ allows users to quickly prototype AD5673R/AD5677R circuits and reduce design time. The AD5673R/AD5677R operates from a single 2.7 V to 5.5 V supply range. The AD5673R/AD5677R incorporates an internal 2.5 V reference to provide an output voltage of 2.5 V or 5 V. The EVAL-AD5677RSDZ also incorporates an additional on-board voltage reference.

The EVAL-AD5677RSDZ interfaces to the USB port of a PC via a system demonstration platform (SDP-B) board. The Analysis | Control | Evaluation (ACE) software is available for download from the EVAL-AD5677RSDZ product page. Use this software with the evaluation board to program the AD5673R/AD5677R. A peripheral module interface (PMOD) connection is also available to allow the connection of microcontrollers to the evaluation board without the SDP-B board. When a microcontroller is used through the PMOD connection, the SDP-B board must be disconnected, and the user is unable to operate the ACE software.

The EVAL-AD5677RSDZ is compatible with any Analog Devices SDP-B board, which can be purchased separately. A typical connection between the EVAL-AD5677RSDZ and the SDP-B controller board is shown in Figure 1.

For full details, see the AD5673R/AD5677R data sheet, which must be used in conjunction with this user guide when using the EVAL-AD5677RSDZ.

EVAL-AD5677R
AD5677R Evaluation Board
AD5677R Evaluation Board AD5677R Evaluation Board AD5677R Evaluation Board

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