TLC7226

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8-Bit, 5 us Quad DAC, Parallel Input, Single / Dual Supply

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Product details

Parameters

Resolution (Bits) 8 DAC channels 4 Interface type Parallel Output type Buffered Voltage Settling time (µs) 5 Features Reference: type Ext Architecture R-2R Rating Catalog Output range (Max) (mA/V) 10 Output range (Min) (mA/V) -5 Operating temperature range (C) 0 to 70, -40 to 85 open-in-new Find other Precision DACs (<=10MSPS)

Package | Pins | Size

PDIP (N) 20 229 mm² 24.33 x 9.4 SOIC (DW) 20 132 mm² 12.8 x 10.3 open-in-new Find other Precision DACs (<=10MSPS)

Features

  • Four 8-Bit D/A Converters
  • Microprocessor Compatible
  • TTL/CMOS Compatible
  • Single Supply Operation Possible
  • CMOS Technology
  • Applications
    • Process Control
    • Automatic Test Equipment
    • Automatic Calibration of Large System Parameters, e.g. Gain/Offset

LinBiCMOS is a trademark of Texas Instruments.

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Description

The TLC7226C, TLC7226I, and TLC7226M consist of four 8-bit voltage-output digital-to-analog converters (DACs) with output buffer amplifiers and interface logic on a single monolithic chip.

Separate on-chip latches are provided for each of the four DACs. Data is transferred into one of these data latches through a common 8-bit TTL/CMOS-compatible 5-V input port. Control inputs A0 and A1 determine which DAC is loaded when WR goes low. The control logic is speed compatible with most 8-bit microprocessors.

Each DAC includes an output buffer amplifier capable of sourcing up to 5 mA of output current.

The TLC7226 performance is specified for input reference voltages from 2 V to VDD – 4 V with dual supplies. The voltage mode configuration of the DACs allows the TLC7226 to be operated from a single power supply rail at a reference of 10 V.

The TLC7226 is fabricated in a LinBiCMOS™ process that has been specifically developed to allow high-speed digital logic circuits and precision analog circuits to be integrated on the same chip. The TLC7226 has a common 8-bit data bus with individual DAC latches. This provides a versatile control architecture for simple interface to microprocessors. All latch-enable signals are level triggered.

Combining four DACs, four operational amplifiers, and interface logic into either a 0.3-inch wide, 20-terminal dual-in-line IC (DIP) or a small 20-terminal small-outline IC (SOIC) allows a dramatic reduction in board space requirements and offers increased reliability in systems using multiple converters. The Leadless Ceramic Chip Carrier (LCCC) package provides for operation at military temperature range. The pinout is aimed at optimizing board layout with all of the analog inputs and outputs at one end of the package and all of the digital inputs at the other.

The TLC7226C is characterized for operation from 0°C to 70°C. The TLC7226I is characterized for operation from –25°C to 85°C. The TLC7226M is characterized for operation from –55°C to 125°C.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet Quadruple 8-Bit Digital-to-Analog Converters datasheet (Rev. F) Apr. 27, 2009

Design & development

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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
  • (...)
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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
  • (...)

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Package Pins Download
PDIP (N) 20 View options
SOIC (DW) 20 View options

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