AD5446

PRODUCTION

12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface

Viewing:

Overview

  • 12 MHz multiplying bandwidth
  • INL of ±0.5 LSB at 12 bits
  • Pin-compatible 12-/14-bit current output DAC
  • 2.5 V to 5.5 V supply operation
  • 10-lead MSOP package
  • ±10 V reference input
  • 50 MHz serial interface
  • 2.7 MSPS update rate
  • Extended temperature range: −40°C to +125°C
  • 4-quadrant multiplication
  • Power-on reset with brownout detection
  • 0.4 µA typical current consumption
  • Guaranteed monotonic

The AD5444 / AD5446 are CMOS 12-bit and 14-bit, current output, digital-to-analog converters (DACs). Operating from a single 2.5 V to 5.5 V power supply, these devices are suited for battery-powered and other applications.

As a result of the CMOS submicron manufacturing process, these parts offer excellent 4-quadrant multiplication characteristics of up to 12 MHz.

These DACs use a double-buffered, 3-wire serial interface that is compatible with SPI®, QSPI, MICROWIRE, and most DSP interface standards. On power-up, the internal shift register and latches are filled with 0s, and the DAC output is at zero scale.

The applied external reference input voltage (VREF) determines the full-scale output current. These parts can handle ±10 V inputs on the reference, despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier. The AD5444 / AD5446 DACs are available in small 10-lead MSOP packages, which are pin-compatible with the AD5425 / AD5426 / AD5432 / AD5443 family of DACs.

The EVAL-AD5443/EVAL-AD5446/EVAL-AD5453 board is available for evaluating DAC performance.

APPLICATIONS

  • Portable, battery-powered applications
  • Waveform generators
  • Analog processing
  • Instrumentation applications
  • Programmable amplifiers and attenuators
  • Digitally controlled calibration
  • Programmable filters and oscillators
  • Composite video
  • Ultrasound
  • Gain, offset, and voltage trimming

AD5446
12-/14-Bit High Bandwidth Multiplying DACs with Serial Interface
AD5444/AD5446 Functional Block Diagram AD5444/AD5446 Pin Configuration
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources


Hardware Ecosystem

Parts Product Life Cycle Description
Operational Amplifiers (Op Amps) 9
ADA4899-1 PRODUCTION Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp
AD8021 PRODUCTION Low Noise, High Speed Amplifier for 16-Bit Systems
AD8065 PRODUCTION High Performance, 145 MHz FastFET Op Amps
AD8510 PRODUCTION

Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Single Operational Amplifier

AD8505 PRODUCTION 20 µA Maximum, RRIO, Zero Input Crossover Distortion Single Op Amp
ADA4051-1 PRODUCTION 1.8 V, µpower, Zero-Drift, RRIO Single Amplifier
ADA4528-1 PRODUCTION Precision, Ultralow Noise, RRIO, Zero-Drift Single Op Amp
OP1177 PRODUCTION Precision Low Noise, Low Input Bias Current Single Operational Amplifier
ADA4077-2 RECOMMENDED FOR NEW DESIGNS 4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Dual Amplifier
Voltage References 5
ADR431 PRODUCTION Ultralow Noise XFET® Voltage References with Current Sink and Source Capability
ADR4525 PRODUCTION Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference
ADR435 PRODUCTION Ultralow Noise XFET® Voltage References with Current Sink and Source Capability
ADR4550 PRODUCTION Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference
ADR01 PRODUCTION Ultracompact, Precision 10.0 V Voltage Reference
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

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.

Open Tool

Evaluation Kits

EVAL-AD5446

AD5446 Evaluation Board

Product Details

The Evaluation board for the AD5446 contains a SDP connection and software which allows the AD5446 to be controlled from an SDP board.

The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CS1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.

This evaluation board can be used to evaluate the AD5444 also.

EVAL-AD5446
AD5446 Evaluation Board

Reference Designs

Current Source Using a Current Output DAC
CN0151 Circuits from the lab

Versatile High Precision Programmable Current Sources Using DACs, Op Amps, and MOSFET Transistors

Features and Benefits

  • Programmable current output
  • Multiple configurations for reverse and bi-directional modes
CN0151
Versatile High Precision Programmable Current Sources Using DACs, Op Amps, and MOSFET Transistors
Current Source Using a Current Output DAC

Latest Discussions

Recently Viewed