DAC8552 Datasheet, PDF (1/22 Pages) Burr-Brown (TI) – 16-BIT, DUAL CHANNEL, ULTRA-LOW GLITCH VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER

BurrĆBrown Products
from Texas Instruments
DAC8552
DAC8552
SLAS430 – JULY 2006
16-BIT, DUAL CHANNEL, ULTRA-LOW GLITCH VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
• Relative Accuracy: 4LSB
• Glitch Energy: 0.15nV-s
• MicroPower Operation:
155µA per Channel at 2.7V
• Power-On Reset to Zero-Scale
• Power Supply: 2.7V to 5.5V
• 16-Bit Monotonic Over Temperature
• Settling Time: 10µs to ±0.003% FSR
• Ultra-Low AC Crosstalk: –100dB Typ
• Low-Power Serial Interface With
Schmitt-Triggered Inputs
• On-Chip Output Buffer Amplifier With
Rail-to-Rail Operation
• Double-Buffered Input Architecture
• Simultaneous or Sequential Output Update
and Powerdown
• Available in a Tiny MSOP-8 Package
APPLICATIONS
• Portable Instrumentation
• Closed-Loop Servo Control
• Process Control
• Data Acquisition Systems
• Programmable Attenuation
• PC Peripherals
V_DD
DESCRIPTION
The DAC8552 is a 16-bit, dual channel, voltage
output digital-to-analog converter (DAC) offering low
power operation and a flexible serial host interface.
Each on-chip precision output amplifier allows
rail-to-rail output swing to be achieved over the
supply range of 2.7V to 5.5V. The device supports a
standard 3-wire serial interface capable of operating
with input data clock frequencies up to 30MHz for
V_DD = 5V.
The DAC8552 requires an external reference voltage
to set the output range of each DAC channel. Also
incorporated into the device is a power-on reset
circuit which ensures that the DAC outputs power up
at zero-scale and remain there until a valid write
takes place. The DAC8552 provides a flexible
power-down feature, accessed over the serial
interface, that reduces the current consumption of
the device to 700nA at 5V.
The low-power consumption of this device in normal
operation makes it ideally suited for portable
battery-operated equipment and other low-power
applications. The power consumption is 0.5mW per
channel at 2.7V, reducing to 1µW in power-down
mode.
The DAC8552 is available in a MSOP-8 package
with a specified operating temperature range of
–40°C to +105°C.
V_REF
Data
Buffer A
DAC
Register A
DAC A
V_OUTA
SYNC
SCLK
D_IN
Data
Buffer B
DAC
Register B
16
24-Bit,
Serial-to-
Parallel
Shift ⁸
Register
Channel
Select
Load
Control
Control Logic
GND
DAC B
2
Power-Down
Control Logic
Resistor
Network
V_OUTB
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, QSP are trademarks of Motorola.
Microwire is a trademark of National Semiconductor.
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