DAC8234

ACTIVE

Quad 14-Bit High Accuracy +/-16.5 V Output Serial Input Digital-To-Analog Converter

Top

Product details

Parameters

Resolution (Bits) 14 DAC channels 4 Interface type SPI Output type Buffered Voltage Settling time (µs) 6 Features On-chip Offset and Gain Calibration, SDO Reference: type Ext Architecture R-2R Rating Catalog Output range (Max) (mA/V) 16.5 Output range (Min) (mA/V) -16.5 Operating temperature range (C) -40 to 105 open-in-new Find other Precision DACs (<=10MSPS)

Package | Pins | Size

TQFP (PFB) 48 81 mm² 9 x 9 VQFN (RHA) 40 36 mm² 6 x 6 open-in-new Find other Precision DACs (<=10MSPS)

Features

  • Bipolar Output: Up to ±16V
  • Unipolar Output: 0V to +20V
  • 14-Bit Monotonic
  • Relative Accuracy: 0.5 LSB Max
  • Low Zero and Gain Errors
    • Before User Calibration: 1 LSB
    • After User Calibration: 0.031 LSB Zero Error, 0.25 LSB Gain Error
  • Low Noise: 60nV/Hz
  • Settling Time: 6µs
  • Configurable Gain: x2/x4
  • Analog Output Monitor
  • Power-Down Mode
  • SPI: Up to 50MHz, 1.8V/3V/5V Logic
  • Daisy-Chain Mode
  • Operating Temperature: -40°C to +105°C
  • Packages: QFN-40 (6x6mm), TQFP-48 (7x7mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • Instrumentation
    • Industrial Process Control
    • Communications

All trademarks are the property of their respective owners.

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

Description

The DAC8234 is a high-accuracy, quad-channel, 14-bit digital-to-analog converter (DAC) that operates from supply voltages of ±5V to ±18V in bipolar output mode, and from ±5V to +24V/-12V in unipolar mode. With a 5V reference, the DAC8234 can be configured to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The DAC8234 provides 14-bit monotonicity, excellent integral nonlinearity (INL) error of ±0.5 LSB, low glitch, and low noise over the operating temperature range of -40°C to +105°C. This device is trimmed in production for very low zero and gain errors. In addition, the DAC8234 implements a user-programmable system-level calibration function to achieve ±0.031 LSB zero error and ±0.25 LSB gain error.

The DAC8234 has integrated reference buffers and output buffers. It features a standard high-speed 1.8V, 3V, or 5V serial peripheral interface (SPI) that operates at clock rates of up to 50MHz to communicate with a DSP or microprocessor. The four DAC channels and the auxiliary registers are addressed with four address bits. The device features double-buffered interface logic for simultaneous updates of all DACs. An asynchronous load input (LDAC) transfers data from the input data register to the DAC latch, and the contents of the DAC latch set the output voltage. The asynchronous RST input sets the output of all four DACs to 0V. The VMON pin is an analog monitor output that multiplexes the individual DAC outputs or the AIN pin.

The DAC8234 is pin-compatible with the DAC8734 (16-bit) and the DAC7716 (12-bit).

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

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet Quad, 14-Bit, High-Accuracy, ±16V Output, Serial Input D/A Converter datasheet (Rev. A) Sep. 01, 2009
User guides DAC8234EVM User Guide Oct. 14, 2009

Design & development

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

Software development

PROGRAMMING TOOLS Download
DXP DAC Exerciser Program
DXP DAC Exerciser Program (DXP)is a software tool from Texas Instruments for evaluating DACs without the requirements of expensive pattern generators or writing complex software. When used with a Texas Instruments DAC EVM and a modular motherboard, it allows for simple and easy digital signal generation (...)
Features
  • Modular design allows additional EVMs to be supported
  • Graphical user interface provides easy setup to send signals to a DAC

Design tools & simulation

SIMULATION MODELS Download
SBAM084.ZIP (84 KB) - IBIS Model
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
TQFP (PFB) 48 View options
VQFN (RHA) 40 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos