DAC161S055 Voltage-Output DAC Datasheet

DAC161S055 Datasheet, PDF, Equivalent


Part Number

DAC161S055

Description

Buffered Voltage-Output DAC

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download DAC161S055 Datasheet


DAC161S055
DAC161S055
www.ti.com
SNAS503B – NOVEMBER 2010 – REVISED JANUARY 2012
DAC161S055 Precision 16-Bit, Buffered Voltage-Output DAC
Check for Samples: DAC161S055
FEATURES
1
2 16-bit DAC with a Two-buffer SPI Interface
• Asynchronous Load DAC and Reset Pins
• Compatibility with 1.8V Controllers
• Buffered Voltage Output with Rail-to-Rail
Capability
• Wide Voltage Reference Range of +2.5V to VA
• Wide Temperature Range of 40°C to +105°C
• Packaged in a 16-pin WQFN
APPLICATIONS
• Process Control
• Automatic Test Equipment
• Programmable Voltage Sources
• Communication Systems
• Data Acquisition
• Industrial PLCs
• Portable Battery Powered Instruments
KEY SPECIFICATIONS
• Resolution (Specified Monotonic) 16 bits
• INL ±3 LSB (max)
• Very Low Output Noise 120 nV/Hz (typ)
• Glitch Impulse 7 nV-s (typ)
• Output Settling Time 5 µs (typ)
• Power Consumption 5.5 mW at 5.25 V (max)
DESCRIPTION
The DAC161S055 is a precision 16-bit, buffered
voltage output Digital-to-Analog Converter (DAC) that
operates from a 2.7V to 5.25V supply with a separate
I/O supply pin that operates down to 1.7V. The on-
chip precision output buffer provides rail-to-rail output
swing and has a typical settling time of 5 µsec. The
external voltage reference can be set between 2.5V
and VA (the analog supply voltage), providing the
widest dynamic output range possible.
The 4-wire SPI compatible interface operates at clock
rates up to 20 MHz. The part is capable of Diasy
Chain and Data Read Back. An on board power-on-
reset (POR) circuit ensures the output powers up to a
known state.
The DAC161S055 features a power-up value pin
(MZB), a load DAC pin (LDACB) and a DAC clear
(CLRB) pin. MZB sets the startup output voltage to
either GND or mid-scale. LDACB updates the output,
allowing multiple DACs to update their outputs
simultaneously. CLRB can be used to reset the
output signal to the value determined by MZB.
The DAC161S055 has a power-down option that
reduces power consumption when the part is not in
use. It is available in a 16-lead WQFN package.
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.
All trademarks are the property of their respective owners.
2
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 © 2010–2012, Texas Instruments Incorporated

DAC161S055
DAC161S055
SNAS503B – NOVEMBER 2010 – REVISED JANUARY 2012
BLOCK DIAGRAM
VDDIO
CLRB
CLR
COMMAND
VA Referenced Input
MZB
VA
VREF
SDO
SDI
SCLK
CSB
LDACB
FIFO/
SPI/
INTERFACE
CLR PRE
CLR PRE
16
LOAD 16
LOAD
PRE
REG
DAC
REG
Bypass
R-DAC
WRAL
WRUP
COMMANDS
BUF
www.ti.com
VOUT
10k
GND
CONNECTION DIAGRAM
VA 1
VOUT 2
NC 3
NC 4
WQFN 16
12 CSB
11 SDI
10 SCLK
9 SDO
Pin Name
Pin #
WQFN-16
VDDIO
16
ESD Structure
PIN DESCRIPTIONS
Type
DAP
Function and Connection
ESD
Clamp
Power
SPI, CLRB, LDACB Supply Voltage.
VA 1
ESD
Clamp
Power
Analog Supply Voltage.
2 Submit Documentation Feedback
Copyright © 2010–2012, Texas Instruments Incorporated
Product Folder Links: DAC161S055


Features DAC161S055 www.ti.com SNAS503B – NOV EMBER 2010 – REVISED JANUARY 2012 DA C161S055 Precision 16-Bit, Buffered Vol tage-Output DAC Check for Samples: DAC1 61S055 FEATURES 1 •2 16-bit DAC with a Two-buffer SPI Interface • Asynchr onous Load DAC and Reset Pins • Compa tibility with 1.8V Controllers • Buff ered Voltage Output with Rail-to-Rail C apability • Wide Voltage Reference Ra nge of +2.5V to VA • Wide Temperature Range of −40°C to +105°C • Packa ged in a 16-pin WQFN APPLICATIONS • P rocess Control • Automatic Test Equip ment • Programmable Voltage Sources Communication Systems • Data Acqui sition • Industrial PLCs • Portable Battery Powered Instruments KEY SPECIF ICATIONS • Resolution (Specified Mono tonic) 16 bits • INL ±3 LSB (max) Very Low Output Noise 120 nV/√Hz (t yp) • Glitch Impulse 7 nV-s (typ) • Output Settling Time 5 µs (typ) • P ower Consumption 5.5 mW at 5.25 V (max) DESCRIPTION The DAC161S055 is a precision 16-bit, buffered voltage output Digital-to-Analog Converter (DAC) that .
Keywords DAC161S055, datasheet, pdf, etcTI, Buffered, Voltage-Output, DAC, AC161S055, C161S055, 161S055, DAC161S05, DAC161S0, DAC161S, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)