AD5326

PRODUCTION

+2.5V to +5.5V, 400µA, 2-Wire Interface, Quad Voltage Output 12-Bit DAC

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Overview

  • AD5306: 4 buffered, 8-bit DACs in 16-lead TSSOP
  • A version: ±1 LSB INL; B version: ±0.625 LSB INL
  • AD5316: 4 buffered, 10-bit DACs in 16-lead TSSOP
  • AD5326: 4 buffered, 12-bit DACs in 16-lead TSSOP
  • A version: ±4 LSB INL; B version: ±2.5 LSB INL
  • A version: ±16 LSB INL; B version: ±10 LSB INL
  • Low power operation: 400 μA @ 3 V, 500 μA @ 5 V
  • See datasheet for additional features

The AD5306 / AD5316 / AD5326 are quad 8-/10-/12-bit buffered voltage output DACs in 16-lead TSSOP packages that operate from a single 2.5 V to 5.5 V supply, consuming 500 μA at 3 V. Their on-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7 V/μs. A 2-wire serial interface, which operates at clock rates up to 400 kHz, is used. This interface is SMBus-compatible at VDD < 3.6 V. Multiple devices can be placed on the same bus.

Each DAC has a separate reference input that can be configured as buffered or unbuffered. The outputs of all DACs can be updated simultaneously using the asynchronous LDAC input. The parts incorporate a power-on reset circuit that ensures the DAC outputs power up to 0 V and remain there until a valid write to the device takes place. The software clear function clears all DACs to 0 V. The parts contain a power-down feature that reduces the current consumption of the device to 300 nA @ 5 V (90 nA @ 3 V).

All three parts have the same pinout, which allows users to select the amount of resolution appropriate for their application without redesigning their circuit board.

PRODUCT HIGHLIGHTS

  1. Available in a 16-lead MicroSOIC package
  2. Low power, single supply operation from 2.5 V to 5.5 V supply
  3. Consumes 1.2mW at 3 V and 2.5 mW at 5 V
  4. Rail-to-Rail output with a slew rate of 0.7 V/µs
  5. Multiple devices can share the same bus
  6. 2-wire serial interface with clock rates up to 400 kHz
  7. Pin- and Software-Compatible with the AD5306 (8-Bit) and the AD5316 (10-Bit)

APPLICATIONS

  • Portable battery-powered instruments
  • Digital gain and offset adjustment
  • Programmable voltage and current sources
  • Programmable attenuator
  • Industrial process control

AD5326
+2.5V to +5.5V, 400µA, 2-Wire Interface, Quad Voltage Output 12-Bit DAC
AD5306/AD5316/AD5326 Functional Block Diagram AD5306/AD5316/AD5326 Pin Configuration
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Tools & Simulations

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.

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Evaluation Kits

eval board
EVAL-AD5326

AD5326 Evaluation Board

Features and Benefits

  • Full featured evaluation board in conjunction with nanoDAC® motherboard (EVAL-MBnanoDAC-SDZ)
  • On-board references
  • Various link options
  • PC control in conjunction with Analog Devices, Inc., system demonstration platform (SDP)

Product Details

The AD5326 evaluation board is designed to help users quickly prototype new AD5326 circuits and reduce design time. The AD5326 operates from a single 2.5 V to 5.5 V supply.


Full data is available in the AD5326 data sheet, which must be consulted in conjunction with UG-977 when using the evaluation board.


The evaluation board interfaces to the USB port of a PC via the SDP-B controller board (EVAL-SDP-CB1Z). Software is supplied with the evaluation board to allow the user to program the AD5326.


This evaluation board requires the SDP-B controller board (EVAL-SDP-CB1Z).


EVAL-AD5326
AD5326 Evaluation Board
Eval-AD5326DBZ-Angle-web Eval-AD5326DBZ-Bottom-web Eval-AD5326DBZ-Top-web

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