DAC5311-Q1
www.ti.com ...................................................................................................................................................................................................... SBAS470–JUNE 2009
1.8 V to 5.5 V, 80 µA, 8 BIT, LOW POWER, SINGLE CHANNEL,
DIGITAL-TO-ANALOG CONVERTER
1
FEATURES
RELATED
DEVICES
234
•
Qualified for Automotive Applications
Relative Accuracy: 0.25 LSB INL
Micro-Power Operation: 80 µA at 1.8 V
Power-Down: 0.5 µA at 5 V, 0.1 µA at 1.8 V
Wide Power Supply: 1.8 V to 5.5 V
Power-On Reset to Zero Scale
16-BIT
14-BIT
12-BIT
10-BIT
8-BIT
•
Pin and
Function
Compatible
DAC8411 DAC8311 DAC7311 DAC6311 DAC5311
•
•
•
•
•
•
AVDD GND
Power-On
Reset
Straight Binary Data Format
Low Power Serial Interface With
Schmitt-Triggered Inputs: Up to 50 MHz
REF(+)
DAC
Register
Output
Buffer
DAC
VOUT
8-/10-/12-Bit
•
On-Chip Output Buffer Amplifier, Rail-to-Rail
Operation
•
•
SYNC Interrupt Facility
Tiny 6-Pin SC70 Package
Power-Down
Control Logic
Input Control
Logic
Resistor
Network
APPLICATIONS
•
•
•
•
Portable, Battery-Powered instruments
Process Control
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
DIN
SYNC SCLK
DESCRIPTION
The DAC5311 is an 8-bit, low-power, single-channel, voltage output, digital-to-analog converters (DAC). It is
monotonic by design and provides excellent linearity and minimizes undesired code-to-code transient voltages
while offering an easy upgrade path within a pin-compatible family. The device uses 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.
DAC5311 uses 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. It contains a power-down feature, accessed over the serial interface, that reduces
current consumption of the device to 0.1 µA at 1.8 V in power-down mode. The low power consumption of this
part 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.
DAC5311 is pin-compatible with the DAC8311 and DAC8411, offering an easy upgrade path from 8-bit resolution
to 14- and 16-bit resolution. The device is available in a small 6-pin SC70 package. This package offers a flexible
solution over the automotive temperature range of –40°C to 85°C.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
3
4
SPI, QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated
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