DAC121S101 Digital-to-Analog Converter Datasheet

DAC121S101 Datasheet, PDF, Equivalent


Part Number

DAC121S101

Description

RRO Digital-to-Analog Converter

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download DAC121S101 Datasheet


DAC121S101
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DAC121S101, DAC121S101-Q1
SNAS265J – JUNE 2005 – REVISED SEPTEMBER 2015
DAC121S101/-Q1 12-Bit Micro Power, RRO Digital-to-Analog Converter
1 Features
1 DAC121S101-Q1 is AEC-Q100 Grade 1 Qualified
and is Manufactured on an Automotive Grade
Flow.
• Ensured Monotonicity
• Low Power Operation
• Rail-to-Rail Voltage Output
• Power-on Reset to Zero Volts Output
• Wide Temperature Range of 40°C to +125°C
• Wide Power Supply Range of 2.7 V to 5.5 V
• Small Packages
• Power Down Feature
• Key Specifications
– 12-Bit Resolution
– DNL -0.15, +0.25 LSB (Typical)
– 8-µs Output Settling Time (Typical)
– 4-mV Zero Code Error (Typical)
– Full-Scale Error at 0.06 %FS (Typical)
– 0.64-mW (3.6-V) / 1.43-mW (5.5-V) Normal
Mode Power Consumption (Typical)
– 0.14-µW (3.6-V) / 0.39-µW (5.5-V) Power-
Down Mode (Typical)
2 Applications
• Battery-Powered Instruments
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources
• Programmable Attenuators
• Automotive
3 Description
The DAC121S101 device is a full-featured, general-
purpose, 12-bit voltage-output digital-to-analog
converter (DAC) that can operate from a single 2.7-V
to 5.5-V supply and consumes just 177 µA of current
at 3.6 V. The on-chip output amplifier allows rail-to-
rail output swing and the three wire serial interface
operates at clock rates up to 30 MHz over the
specified supply voltage range and is compatible with
standard SPI™, QSPI, MICROWIRE and DSP
interfaces. Competitive devices are limited to 20-MHz
clock rates at supply voltages in the 2.7 V to 3.6 V
range.
The supply voltage for the DAC121S101 serves as its
voltage reference, providing the widest possible
output dynamic range. A power-on reset circuit
ensures that the DAC output powers up to zero volts
and remains there until there is a valid write to the
device. A power-down feature reduces power
consumption to less than a microWatt.
The low power consumption and small packages of
the DAC121S101 make it an excellent choice for use
in battery operated equipment.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC121S101
SOT (6)
VSSOP (8)
2.90 mm × 1.60 mm
3.00 mm × 3.00 mm
DAC121S101-Q1 SOT (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Block Diagram
VA GND
DNL vs. Output Code
POWER-ON
RESET
DAC121S101
DAC
REGISTER
12
12
INPUT
CONTROL
LOGIC
REF(+) REF(-)
12-BIT DAC
BUFFER
POWER-DOWN
CONTROL
LOGIC
VOUT
1k 100k
SYNC SCLK DIN
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.

DAC121S101
DAC121S101, DAC121S101-Q1
SNAS265J – JUNE 2005 – REVISED SEPTEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description continued ........................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics.......................................... 5
7.6 AC and Timing Characteristics ................................ 7
7.7 Typical Characteristics ............................................ 10
8 Detailed Description ............................................ 16
8.1 Overview ................................................................. 16
8.2 Functional Block Diagram ....................................... 16
8.3 Feature Description................................................. 16
8.4 Device Functional Modes........................................ 17
8.5 Programming........................................................... 18
9 Application and Implementation ........................ 19
9.1 Application Information............................................ 19
9.2 Typical Application ................................................. 21
10 Power Supply Recommendations ..................... 23
10.1 Using References as Power Supplies................... 23
11 Layout................................................................... 25
11.1 Layout Guidelines ................................................. 25
11.2 Layout Example .................................................... 26
12 Device and Documentation Support ................. 26
12.1 Device Support .................................................... 26
12.2 Documentation Support ........................................ 27
12.3 Related Links ........................................................ 27
12.4 Community Resources.......................................... 27
12.5 Trademarks ........................................................... 27
12.6 Electrostatic Discharge Caution ............................ 27
12.7 Glossary ................................................................ 27
13 Mechanical, Packaging, and Orderable
Information ........................................................... 28
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (March 2013) to Revision J
Page
• Added Pin Configuration and Functions section, 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
Changes from Revision H (February 2010) to Revision I
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 25
2 Submit Documentation Feedback
Copyright © 2005–2015, Texas Instruments Incorporated
Product Folder Links: DAC121S101 DAC121S101-Q1


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DAC121S101, DAC121S101-Q1 SN AS265J – JUNE 2005 – REVISED SEPTEM BER 2015 DAC121S101/-Q1 12-Bit Micro Po wer, RRO Digital-to-Analog Converter 1 Features •1 DAC121S101-Q1 is AEC-Q10 0 Grade 1 Qualified and is Manufactured on an Automotive Grade Flow. • Ensur ed Monotonicity • Low Power Operation • Rail-to-Rail Voltage Output • Po wer-on Reset to Zero Volts Output • W ide Temperature Range of −40°C to +1 25°C • Wide Power Supply Range of 2. 7 V to 5.5 V • Small Packages • Pow er Down Feature • Key Specifications – 12-Bit Resolution – DNL -0.15, +0 .25 LSB (Typical) – 8-µs Output Sett ling Time (Typical) – 4-mV Zero Code Error (Typical) – Full-Scale Error at −0.06 %FS (Typical) – 0.64-mW (3.6 -V) / 1.43-mW (5.5-V) Normal Mode Power Consumption (Typical) – 0.14-µW (3. 6-V) / 0.39-µW (5.5-V) Power- Down Mod e (Typical) 2 Applications • Battery-Powered Instruments • Digital Gain and Offset Adjustment • Programmable V.
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