DAC8x11 2-V to 5.5-V, 80-μA, 14- and 16-Bit, Low-Power, Single-Channel, Digital-to-Analog Converters in SC70 Package

1 Features

• Relative Accuracy:
  • 1 LSB INL (DAC8311: 14-bit)
  • 4 LSB INL (DAC8411: 16-bit)
• microPower Operation: 80 μA at 2 V
• Power-Down: 0.5 μA at 5 V, 0.1 μA at 2 V
• Wide Power Supply: 2 V to 5.5 V
• Power-On Reset to Zero Scale
• Straight Binary Data Format
• Low Power Serial Interface With Schmitt-Triggered Inputs: Up to 50 MHz
• On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
• SYNC Interrupt Facility
• Extended Temperature Range –40°C to 125°C
• Pin-Compatible Family in a Tiny, 6-Pin SC70 Package

2 Applications

• Portable, Battery-Powered instruments
• Process Controls
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources

Simplified Schematic

3 Description

The DAC8311 (14-bit) and DAC8411 (16-bit) devices are low-power, single-channel, voltage output digital-to-analog converters (DAC). They provide excellent linearity and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, 3-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI™, QSPI™, Microwire, and digital signal processor (DSP) interfaces.

All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that ensures the DAC output powers up at 0 V and remains there until a valid write to the device occurs. The DAC8311 and DAC8411 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device to 0.1 μA at 2 V in power down mode. The low power consumption of these devices in normal operation makes it ideally suited for portable, battery-operated equipment. The power consumption is 0.55 mW at 5 V, reducing to 2.5 μW in power-down mode.

These devices are pin-compatible with the DAC5311, DAC6311, and DAC7311, offering an easy upgrade path from 8-, 10-, and 12-bit resolution to 14- and 16-bit. All devices are available in a small, 6-pin, SC70 package. This package offers a flexible, pin-compatible, and functionally-compatible drop-in solution within the family over an extended temperature range of –40°C to 125°C.

1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Revision History

Changes from B Revision (May 2013) to C Revision

• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from A Revision (August, 2011) to B Revision

• Changed all 1.8V to 2.0V throughout data sheetGo
• Deleted 1.8-V Typical Characteristics sectionGo
• Changed X-axis for Figure 35Go
• Changed X-axis for Figure 36Go

Changes from * Revision (August, 2008) to A Revision

• Changed specifications and test conditions for input low voltage parameterGo
• Changed specifications and test conditions for input high voltage parameterGo

5 Device Comparison