DAC081S101 Digital-to-Analog Converter Datasheet

DAC081S101 Datasheet, PDF, Equivalent


Part Number

DAC081S101

Description

8-Bit Micro Power Digital-to-Analog Converter

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download DAC081S101 Datasheet


DAC081S101
DAC081S101
www.ti.com
SNAS323C – JUNE 2005 – REVISED FEBRUARY 2013
DAC081S101 8-Bit Micro Power Digital-to-Analog Converter with Rail-to-Rail Output
Check for Samples: DAC081S101
FEATURES
1
23 Guaranteed Monotonicity
• Low Power Operation
• Rail-to-Rail Voltage Output
• Power-on Reset to Zero Volts Output
• SYNC Interrupt Facility
• Wide Power Supply Range (+2.7V to +5.5V)
• Small Packages
• Power Down Feature
APPLICATIONS
• Battery-Powered Instruments
• Digital Gain and Offset Adjustment
• Programmable Voltage & Current Sources
• Programmable Attenuators
DESCRIPTION
The DAC081S101 is a full-featured, general purpose
8-bit voltage-output digital-to-analog converter (DAC)
that can operate from a single +2.7V to 5.5V supply
and consumes just 175 µA of current at 3.6 Volts.
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 2.7V to 3.6V range.
The supply voltage for the DAC081S101 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 DAC081S101 make it an excellent choice for use
in battery operated equipment.
The DAC081S101 is a direct replacement for the
AD5300 and is one of a family of pin compatible
DACs, including the 10-bit DAC101S101 and the 12-
bit DAC121S101. The DAC081S101 operates over
the extended industrial temperature range of 40°C
to +105°C.
Resolution
DNL
Output Settling Time
Zero Code Error
Full-Scale Error
Power Consumption
Normal Mode
Pwr Down Mode
Table 1. Key Specifications
VALUE
8 bits
+0.04, -0.02 LSB (typ)
3 µs (typ)
3.8mV (typ)
0.07 %FS (typ)
0.63 mW (3.6V) / 1.41 mW (5.5V) typ
0.14 µW (3.6V) / 0.33 µW (5.5V) typ
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.
SPI is a trademark of Motorola, Inc..
2
All other trademarks are the property of their respective owners.
3
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 © 2005–2013, Texas Instruments Incorporated

DAC081S101
DAC081S101
SNAS323C – JUNE 2005 – REVISED FEBRUARY 2013
Pin Configuration
SOT
VOUT 1
GND 2
VA 3
6 SYNC
5 SCLK
4 DIN
Block Diagram
POWER-ON
RESET
VA GND
www.ti.com
VSSOP
VA
NC
NC
VOUT
1
2
3
4
8 GND
7 DIN
6 SCLK
5 SYNC
DAC081S101
DAC
REGISTER
8
INPUT
CONTROL
LOGIC
8
REF(+) REF(-)
8-BIT DAC
BUFFER
POWER-DOWN
CONTROL
LOGIC
VOUT
1k 100k
SYNC SCLK DIN
Name
VOUT
GND
VA
DIN
SCLK
SYNC
NC
SOT-23
Pin No.
1
2
3
4
5
6
Pin Descriptions
VSSOP
Pin No.
Description
4 DAC Analog Output Voltage.
8 Ground reference for all on-chip circuitry.
1 Power supply and Reference input. Should be decoupled to GND.
7
Serial Data Input. Data is clocked into the 16-bit shift register on the falling
edges of SCLK after the fall of SYNC.
6
Serial Clock Input. Data is clocked into the input shift register on the falling
edges of this pin.
Frame synchronization input for the data input. When this pin goes low, it
enables the input shift register and data is transferred on the falling edges
5 of SCLK. The DAC is updated on the 16th clock cycle unless SYNC is
brought high before the 16th clock, in which case the rising edge of SYNC
acts as an interrupt and the write sequence is ignored by the DAC.
2, 3 No Connect. There is no internal connection to these pins.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2 Submit Documentation Feedback
Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: DAC081S101


Features DAC081S101 www.ti.com SNAS323C – JUN E 2005 – REVISED FEBRUARY 2013 DAC08 1S101 8-Bit Micro Power Digital-to-Anal og Converter with Rail-to-Rail Output C heck for Samples: DAC081S101 FEATURES 1 •23 Guaranteed Monotonicity • Low Power Operation • Rail-to-Rail Volta ge Output • Power-on Reset to Zero Vo lts Output • SYNC Interrupt Facility • Wide Power Supply Range (+2.7V to + 5.5V) • Small Packages • Power Down Feature APPLICATIONS • Battery-Power ed Instruments • Digital Gain and Off set Adjustment • Programmable Voltage & Current Sources • Programmable Att enuators DESCRIPTION The DAC081S101 is a full-featured, general purpose 8-bit voltage-output digital-to-analog conve rter (DAC) that can operate from a sing le +2.7V to 5.5V supply and consumes ju st 175 µA of current at 3.6 Volts. The on-chip output amplifier allows rail-t o-rail output swing and the three wire serial interface operates at clock rate s up to 30 MHz over the specified supply voltage range and is compatible with standard SPI™,.
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