Product details

Resolution (Bits) 16 Number of DAC channels (#) 8 Interface type Parallel Output type Buffered Voltage Settling time (µs) 15 Features On-chip Offset and Gain Calibration Reference type Ext Architecture String Rating Catalog Output range (Max) (mA/V) 33 Output range (Min) (mA/V) -16.5 Operating temperature range (C) -40 to 105
Resolution (Bits) 16 Number of DAC channels (#) 8 Interface type Parallel Output type Buffered Voltage Settling time (µs) 15 Features On-chip Offset and Gain Calibration Reference type Ext Architecture String Rating Catalog Output range (Max) (mA/V) 33 Output range (Min) (mA/V) -16.5 Operating temperature range (C) -40 to 105
TQFP (PAG) 64 144 mm² 12 x 12 VQFN (RTQ) 56 64 mm² 8 x 8
  • Bipolar Output: ±3V, up to ±16.5V
  • Unipolar Output: 0V to +33V
  • 16-Bit Resolution
  • Low Power: 13.5mW/Ch
  • Relative Accuracy: 4 LSB Max
  • Flexible User Calibration
  • Low Zero/Full-Scale Error
    • Before User Calibration: ±10 LSB Max
    • After User Calibration: ±1 LSB
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4, x6
  • Programmable Offset
  • 16-Bit Parallel Interface: 50MHz (Write Operation)
  • Packages: QFN-56 (8mm x 8mm), TQFP-64 (10mm x 10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications
  • Bipolar Output: ±3V, up to ±16.5V
  • Unipolar Output: 0V to +33V
  • 16-Bit Resolution
  • Low Power: 13.5mW/Ch
  • Relative Accuracy: 4 LSB Max
  • Flexible User Calibration
  • Low Zero/Full-Scale Error
    • Before User Calibration: ±10 LSB Max
    • After User Calibration: ±1 LSB
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4, x6
  • Programmable Offset
  • 16-Bit Parallel Interface: 50MHz (Write Operation)
  • Packages: QFN-56 (8mm x 8mm), TQFP-64 (10mm x 10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications

The DAC8728 is a low-power, octal, 16-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be a ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed to achieve ±1 LSB bipolar zero/full-scale error for a bipolar supply, or ±1 LSB zero-code/full-scale error for a unipolar supply over the entire signal chain. The output range can be offset by using the DAC Offset Register.

The DAC8728 features a standard, high-speed, 16-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).

The DAC8728 is pin-to-pin compatible with the DAC8228 (14-bit) and the DAC7728 (12-bit).

The DAC8728 is a low-power, octal, 16-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be a ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed to achieve ±1 LSB bipolar zero/full-scale error for a bipolar supply, or ±1 LSB zero-code/full-scale error for a unipolar supply over the entire signal chain. The output range can be offset by using the DAC Offset Register.

The DAC8728 features a standard, high-speed, 16-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).

The DAC8728 is pin-to-pin compatible with the DAC8228 (14-bit) and the DAC7728 (12-bit).

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* Data sheet Octal, 16-bit, Low-Power, High-Voltage Output, Parallel Input D/A Converter datasheet (Rev. A) 24 Nov 2009
Technical article How smart AFEs offer an integrated analog solution for thermoelectric cooling control 04 Jan 2022
Technical article DAC Essentials: String theory 01 May 2013
User guide DAC8728EVM User's Guide 23 Feb 2010

Design & development

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Evaluation board

DAC8728EVM — DAC8728 Evaluation Module

The DAC8728EVM is a full-featured evaluation board that features the DAC8728 device. The DAC8728 is a low-power, octal, ±15V output, parallel input, 16-bit digital-to-analog converter (DAC). This evaluation module (EVM) allows evaluation of all aspects of the DAC8728 and gives control over (...)

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Simulation model

DAC8728 IBIS Model

SBAM101.ZIP (115 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 (...)
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QFN (RTQ) 56 View options
TQFP (PAG) 64 View options

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