DAC8560 Datasheet, PDF (1/29 Pages) Burr-Brown (TI) – 16-Bit, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/°C Internal Reference

BurrĆBrown Products
from Texas Instruments
DAC8560
DAC8560
16-Bit, Ultra-Low Glitch, Voltage Output
DIGITAL-TO-ANALOG CONVERTER
with 2.5V, 2ppm/°C Internal Reference
SLAS464 – DECEMBER 2006
FEATURES
• Relative Accuracy: 4LSB
• 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
• 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
• Low-Power Serial Interface with
Schmitt-Triggered Inputs
• On-Chip Output Buffer Amplifier with
Rail-to-Rail Operation
• Power-Down Capability
• Drop-In Compatible With DAC8531/01 and
DAC8550/51
• Temperature Range: –40°C to +105°C
• Available in a Tiny MSOP-8 Package
APPLICATIONS
• Process Control
• Data Acquisition Systems
• Closed-Loop Servo-Control
• PC Peripherals
• Portable Instrumentation
DESCRIPTION
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 V_REF 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.
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
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.
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.
The DAC8560 is available in an MSOP-8 package.
FUNCTIONAL BLOCK DIAGRAM
V_DD
V_FB
V_REF
2.5V
Reference
Ref (+)
16-Bit DAC
16
V_OUT
DAC Register
SYNC
SCLK
D_IN
16
Shift Register
PWD
Control
Resistor
Network
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