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Product details

Parameters

Resolution (Bits) 12 DAC channels 1 Interface Parallel Output type Unbuffered Current Settling time (µs) 0.2 Features Reference: type Ext Architecture Multiplying DAC Rating Catalog Output range (Max) (mA/V) 1 Output range (Min) (mA/V) 0 Operating temperature range (C) -40 to 125 open-in-new Find other Precision DACs (<=10MSPS)

Package | Pins | Size

TSSOP (PW) 20 42 mm² 6.5 x 6.4 open-in-new Find other Precision DACs (<=10MSPS)

Features

  • 2.5V to 5.5V Supply Operation
  • Fast Parallel Interface: 17ns Write Cycle
  • Update Rate of 20.4MSPS
  • 10MHz Multiplying Bandwidth
  • ±10V Reference Input
  • Low Glitch Energy: 5nV-s
  • Extended Temperature Range:-40°C to +125°C
  • 20-Lead TSSOP Packages
  • 12-Bit Monotonic
  • ±1LSB INL
  • 4-Quadrant Multiplication
  • Power-On Reset with Brownout Detection
  • Readback Function
  • Industry-Standard Pin Configuration
  • APPLICATIONS
    • Portable Battery-Powered Instruments
    • Waveform Generators
    • Analog Processing
    • Programmable Amplifiers and Attenuators
    • Digitally-Controlled Calibration
    • Programmable Filters and Oscillators
    • Composite Video
    • Ultrasound

All trademarks are the property of their respective owners.

open-in-new Find other Precision DACs (<=10MSPS)

Description

The DAC7821 is a CMOS 12-bit current output digital-to-analog converter (DAC). This device operates from a single 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications.

This DAC operates with a fast parallel interface. Data readback allows the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7821 offers excellent 4-quadrant multiplication characteristics, with a large signal multiplying bandwidth of 10MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

The DAC7821 is available in a 20-lead TSSOP package.

open-in-new Find other Precision DACs (<=10MSPS)
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Technical documentation

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Type Title Date
* Datasheet 12-Bit, Parallel Input, Multiplying Digital-to-Analog Converter datasheet (Rev. B) Jul. 05, 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
MikroElektronika ASLKPRO University Kit
Provided by MikroElektronika
$99.00
Description
ASLK PRO comes with three general-purpose operational amplifiers (TL082) and three wide-bandwidth precision analog multipliers (MPY634) from Texas Instruments. We have also included two 12-bit parallel-input multiplying digital-to-analog converters DAC7821, a wide-input non-synchronous buck-type (...)
Features

ASLK PRO Kit comes in/with:

    • Damage resistant protective box
    • ASLK PRO board in antistatic bag
    • Manual, Schematic and Graph paper book
    • Wire jumpers, transistors and diodes
    • 14 Lab experiments* catered towards Analog Circuits

* Lab experiments may be supplemented with SPICE simulation software (not included in (...)

Design tools & simulation

SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 20 View options

Ordering & quality

Support & training

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