Document
Data Sheet AD5672R/AD5676R
Octal, 12-/16-Bit nanoDAC+ with 2 ppm/°C Reference, SPI Interface
FEATURES
► High performance ► High relative accuracy (INL): ±3 LSB maximum at 16 bits ► Total unadjusted error (TUE): ±0.14% of FSR maximum ► Offset error: ±1.5 mV maximum ► Gain error: ±0.06% of FSR maximum ► Low drift 2.5 V reference: 2 ppm/°C typical
► Wide operating ranges ► −40°C to +125°C temperature range ► 2.7 V to 5.5 V power supply range
► Simplified implementation ► User selectable gain of 1 or 2 (GAIN pin/gain bit) ► 1.8 V logic compatibility
► 50 MHz SPI with readback or daisy chain ► 20-lead, RoHS compliant TSSOP and LFCSP ► 16-ball, RoHS compliant WLCSP (AD5676R)
APPLICATIONS
► Optical transceivers ► Base station power amplifiers ► Process control (PLC input/output cards) ► Industrial automation ► Data acquisition systems
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
The AD5672R/AD5676R are low power, octal, 12-/16-bit buffered voltage output digital-to-analog converters (DACs). They include a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design. The AD5672R/AD5676R are available in a 20-lead TSSOP and in a 20-lead LFCSP and incorporate a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remains there until a valid write. The AD5672R/AD5676R contain a power-down mode, reducing the current consumption to 1 µA typical while in power-down mode. The AD5676R is also available in a 16-ball WLCSP.
Table 1. Octal nanoDAC+® Devices
Interface
Reference
16-Bit
12-Bit
SPI
Internal
AD5676R
AD5672R
External
AD5676
Not applicable
I2C
Internal
AD5675R
AD5671R
PRODUCT HIGHLIGHTS
1. High Relative Accuracy (INL). AD5672R (12-bit): ±1 LSB maximum. AD5676R (16-bit): ±3 LSB maximum.
2. Low Drift, 2.5 V On-Chip Reference. 3. High Channel Density.
Eight channels in 2.5 mm × 2.4 mm WLCSP (AD5676R).
Figure 1.
Rev. E DOCUMENT FEEDBACK TECHNICAL SUPPORT
Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog 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 change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
Data Sheet
TABLE OF CONTENTS
Features................................................................ 1 Applications........................................................... 1 General Description...............................................1 Product Highlights................................................. 1 Functional Block Diagram................................