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Product details

Parameters

Resolution (Bits) 12 DAC channels 1 Interface type 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

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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

= Top documentation for this product selected by TI
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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
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
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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

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