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DAC8560
DAC8560
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SLAS464–DECEMBER 2006
16-Bit, Ultra-Low Glitch, Voltage Output
DIGITAL-TO-ANALOG CONVERTER
with 2.5V, 2ppm/°C Internal Reference
FEATURES
DESCRIPTION
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Relative Accuracy: 4LSB
The DAC8560 is a low-power, voltage output, 16-bit
digital-to-analog converter (DAC). The DAC8560
includes a 2.5V, 2ppm/°C internal reference (enabled
by default), giving a full-scale output voltage range of
2.5V. The internal reference has an initial accuracy
of 0.02% and can source up to 20mA at the VREF pin.
The device is monotonic, provides very good
linearity, and minimizes undesired code-to-code
transient voltages (glitch). The DAC8560 uses a
versatile 3-wire serial interface that operates at clock
rates up to 30MHz. It is compatible with standard
SPI™, QSPI™, Microwire™, and digital signal
processor (DSP) interfaces.
Glitch Energy: 0.15nV-s
MicroPower Operation: 510µA at 2.7V
Internal Reference:
• 2.5V Reference Voltage (enabled by default)
• 0.02% Initial Accuracy
• 2ppm/°C Temperature Drift (typ)
• 5ppm/°C Temperature Drift (max)
• 20mA Sink/Source Capability
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Power-On Reset to Zero
Power Supply: +2.7V to +5.5V
16-Bit Monotonic Over Temperature Range
Settling Time: 10µs to ±0.003% FSR
The DAC8560 incorporates a power-on-reset circuit
that ensures the DAC output powers up at zero-scale
and remains there until a valid code is written to the
Low-Power Serial Interface with
Schmitt-Triggered Inputs
device. The DAC8560 contains
a power-down
feature, accessed over the serial interface, that
reduces the current consumption of the device to
1.2µA at 5V.
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On-Chip Output Buffer Amplifier with
Rail-to-Rail Operation
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Power-Down Capability
The low-power consumption, internal reference, and
small footprint make this device ideal for portable,
battery-operated equipment. The power consumption
is 2.6mW at 5V, reducing to 6µW in power-down
mode.
Drop-In Compatible With DAC8531/01 and
DAC8550/51
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Temperature Range: –40°C to +105°C
Available in a Tiny MSOP-8 Package
The DAC8560 is available in an MSOP-8 package.
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS
VDD
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Process Control
VFB
Data Acquisition Systems
Closed-Loop Servo-Control
PC Peripherals
VREF
VOUT
Ref (+)
16-Bit DAC
2.5V
Reference
Portable Instrumentation
16
DAC Register
16
SYNC
SCLK
DIN
PWD
Control
Resistor
Network
Shift Register
GND
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, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor.
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 © 2006, Texas Instruments Incorporated