DAC8551IADGKRG4 Datasheet, PDF (1/26 Pages) Texas Instruments – 16-BIT, ULTRA-LOW GLITCH, VOLTAGE OUTPUT

BurrĆBrown Products
from Texas Instruments
DAC8551
DAC8551
SLAS429B – APRIL 2005 – REVISED OCTOBER 2006
16-BIT, ULTRA-LOW GLITCH, VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
• Relative Accuracy: 3LSB
• Glitch Energy: 0.1nV-s
• MicroPower Operation:
140µA at 2.7V
• Power-On Reset to Zero
• Power Supply: +2.7V to +5.5V
• 16-Bit Monotonic Over Temperature
• 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
• Binary Input
• SYNC Interrupt Facility
• Drop-In Compatible With DAC8531/01
and DAC8550 (2's Complement Input)
• Available in a Tiny MSOP-8 Package
APPLICATIONS
• Process Control
• Data Acquisition Systems
• Closed-Loop Servo-Control
• PC Peripherals
• Portable Instrumentation
• Programmable Attenuation
DESCRIPTION
The DAC8551 is a small, low-power, voltage output,
16-bit digital-to-analog converter (DAC). It is
monotonic, provides good linearity, and minimizes
undesired code-to-code transient voltages. The
DAC8551 uses a versatile 3-wire serial interface that
operates at clock rates to 30MHz and is compatible
with standard SPI™, QSPI™, Microwire™, and
digital signal processor (DSP) interfaces.
The DAC8551 requires an external reference voltage
to set its output range. The DAC8551 incorporates a
power-on-reset circuit that ensures the DAC output
powers up at 0V and remains there until a valid write
takes place to the device. The DAC8551 contains a
power-down feature, accessed over the serial
interface, that reduces the current consumption of
the device to 200nA at 5V.
The low-power consumption of this device in normal
operation makes it ideally suited for portable, battery-
operated equipment. The power consumption is
0.38mW at 2.7V, reducing to less than 1µW in
power-down mode.
The DAC8551 is available in an MSOP-8 package.
For additional flexibilty, see the DAC8550, a 2's
complement-input counterpart to the DAC8551.
FUNCTIONAL BLOCK DIAGRAM
V_DD
V_FB
V_REF
Ref (+)
16-Bit DAC
V_OUT
SYNC
SCLK
D_IN
16
DAC Register
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 © 2005–2006, Texas Instruments Incorporated