D/A Converter. DAC7811 Datasheet

DAC7811 Converter. Datasheet pdf. Equivalent

Part DAC7811
Description 12-Bit D/A Converter
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DAC7811
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Technical
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Tools &
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Support &
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Reference
Design
DAC7811
SBAS337E – APRIL 2005 – REVISED MARCH 2018
DAC7811 12-Bit, Serial Input, Multiplying Digital-to-Analog Converter
1 Features
1 2.7-V to 5.5-V Supply Operation
• 50-MHz Serial Interface
• 10-MHz Multiplying Bandwidth
• ±15-V Reference Input
• Low Glitch Energy: 5 nV-s
• Extended Temperature Range:
–40°C to +125°C
• 10-Pin VSSOP Package
• 12-Bit Monotonic
• 4-Quadrant Multiplication
• Power-On Reset With Brownout Detection
• Daisy-Chain Mode
• Readback Function
• Industry-Standard Pin Configuration
2 Applications
• Portable Battery-Powered Instruments
• Waveform Generators
• Analog Processing
• Programmable Amplifiers and Attenuators
• Digitally Controlled Calibration
• Programmable Filters and Oscillators
• Composite Video
• Ultrasound
3 Description
The DAC7811 is a CMOS, 12-bit, current output
digital-to-analog converter (DAC). This device
operates from a 2.7-V to 5.5-V power supply, making
it suitable for battery-powered and many other
applications.
This DAC uses a double-buffered 3-wire serial
interface that is compatible with SPI, QSPI™,
MICROWIRE, and most DSP interface standards. In
addition, a serial data out pin (SDO) allows for daisy-
chaining when multiple devices are used. Data
readback allows the user to read the contents of the
DAC register via the SDO pin. On power-up, the
internal shift register and latches are filled with zeroes
and the DAC outputs are at zero scale.
The DAC7811 offers excellent 4-quadrant
multiplication characteristics, with large signal
multiplying bandwidth of 10 MHz. The applied
external reference input voltage (VREF) determines
the full-scale output current. An integrated feedback
resistor (RFB) provides temperature tracking and full-
scale voltage output when combined with an external
current-to-voltage precision amplifier.
The DAC7811 is available in a 10-lead VSSOP
package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC7811
VSSOP (10)
3.00 mm 3.00 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Block Diagram
VDD
VREF
DAC7811
12-Bit
R-2R DAC
R
RFB
IOUT1
IOUT2
Power-On
Reset
DAC Register
Input Latch
SYNC
SCLK
SDIN
Control Logic and
Input Shift Register
SDO
GND
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



DAC7811
DAC7811
SBAS337E – APRIL 2005 – REVISED MARCH 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics: VDD = 5 V............................ 6
6.7 Typical Characteristics: VDD = 2.7 V......................... 9
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 12
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Application .................................................. 19
9 Power Supply Recommendations...................... 20
10 Layout................................................................... 21
10.1 Layout Guidelines ................................................. 21
10.2 Layout Example .................................................... 21
11 Device and Documentation Support ................. 22
11.1 Documentation Support ........................................ 22
11.2 Receiving Notification of Documentation Updates 22
11.3 Community Resource............................................ 22
11.4 Trademarks ........................................................... 22
11.5 Electrostatic Discharge Caution ............................ 22
11.6 Glossary ................................................................ 22
12 Mechanical, Packaging, and Orderable
Information ........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (March 2016) to Revision E
Page
• Changed Figure 28 SDO pin timing to remove Hi-Z ............................................................................................................ 14
Changes from Revision C (July 2007) to Revision D
Page
• 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 ................................................................................................. 1
2
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