Data Sheet
AD3551R
Single Channel, 16-Bit, 33 MUPS, Multispan, Multi-IO SPI DAC
FEATURES
GENERAL DESCRIPTION
► 16-bit resolution
► 33 MUPS rate in fast mode
► 22 MUPS rate in precision mode
► 65 ns small signal settling time to 0.1% accuracy
► 100 ns large signal settling time to 0.1% accuracy
► Ultra small glitch: < 50 pV×s
The AD3551R is a low drift, single channel, ultra-fast, 16-bit accu-
racy, current output digital-to-analog converter (DAC) that can be
configured in multiple voltage span ranges. The AD3551R operates
with a fixed 2.5 V reference.
Each DAC incorporates three drift compensating feedback resistors
for the required external transimpedance amplifier (TIA) that scales
the output voltage. Offset and gain scaling registers allow for
generation of multiple output span ranges, such as 0 V to 2.5 V, 0 V
to 5 V, 0 V to 10 V, −5 V to +5 V, and −10 V to +10 V, and custom
intermediate ranges with full 16-bit resolution.
► Ultra low latency: 5 ns
► THD: −105 dB at 1 kHz
► Highly configurable output voltage span and offset
► 1.2 V and 1.8 V logic level compatible
► Single (classic), dual, and quad SPI modes
► Multiple error detectors, both analog and digital domains
► 2.5 V internal voltage reference, 10 ppm/°C maximum tempera-
ture coefficient
The DAC can operate in fast mode for maximum speed or precision
mode for maximum accuracy.
The serial peripheral interface (SPI) can be configured in quad
SPI mode, dual SPI mode, and single SPI (classic SPI) mode with
single date rate (SDR) or double data rate (DDR), with logical levels
from 1.2 V to 1.8 V.
► 5 mm × 5 mm LFCSP
APPLICATIONS
The AD3551R is specified over the extended industrial temperature
range (–40°C to +105°C).
► Instrumentation
Table 1. Related Devices
► Hardware in the loop
► Process control equipment
► Medical devices
► Automated test equipment
► Data acquisition system
► Programmable voltage sources
► Optical communications
Part No.
Description
AD8675
36 V precision, 2.8 nV/√Hz rail-to-rail output operational amplifier
™
AD8065
High performance, 145 MHz FastFET operational amplifiers
ADA4807-1
LTC6655
ADR4525
3.1 nV/√Hz, 1 mA, 180 MHz, rail-to-rail input/output amplifier
0.25 ppm noise, low drift precision reference
Ultralow noise, high accuracy, 2.5 V voltage reference
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
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Rev. A
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Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to
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