2 Applications
Portable, Battery-Powered instruments
Process Controls
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
3 Description
The DAC5311 (8-bit), DAC6311 (10-bit), and DAC7311 (12-bit) devices
are low-power, single- channel, voltage output digital-to-analog
converters (DACs). The low power consumption of these devices in
normal operation (0.55 mW at 5 V, reducing to 2.5 μW in power-down
mode) makes it ideally suited for portable, battery-operated
applications.
These devices are monotonic by design, 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, three-wire serial interface that operates
at clock rates of up to 50 MHz and is compatible with standard
SPITM, QSPITM, 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
DAC5311, DAC6311, and DAC7311 contain a power-down feature,
accessed over the serial interface, that reduces current
consumption of the device to 0.1 μA at 2.0 V in power-down mode.
These devices are pin-compatible with the DAC8311 and DAC8411,
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 (SOT) package. This package offers a flexible, pin- and
function-compatible, drop-in solution within the family over an
extended temperature range of –40°C to +125°C.
Device Information
