Features and Benefits
- 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
- High relative accuracy (INL):
- Wide Operating Ranges
- −40°C to +125°C temperature range
- 2.7 V to 5.5 V power supply
- Easy Implementation
- User selectable gain of 1 or 2 (GAIN pin/bit)
- 1.8 V logic compatibility
- 400 kHz I2C-compatible serial interface
- 20-lead, RoHS-compliant TSSOP and LFCSP
The AD5671R/AD5675R 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 AD5671R/AD5675R 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 the DAC outputs power up to zero scale or midscale and remain there until a valid write. The AD5671R/AD5675R contain a power-down mode, reducing the current consumption to 1 μA typical while in power-down mode.
- High Relative Accuracy (INL).
AD5671R (12-bit): ±1 LSB maximum
AD5675R (16-bit): ±3 LSB maximum
- Low Drift 2.5 V On-Chip Reference
- Optical transceivers
- Base-station power amplifiers
- Process control (PLC input/output cards)
- Industrial automation
- Data acquisition systems
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The EVAL-AD5675SDZ/EVAL-AD5675RSDZ evaluation boards help customers to quickly prototype new AD5675/AD5675R circuits and reduce design time. The AD5675/AD5675R operate from a single 2.7 V to 5.5 V supply. The AD5675R has an internal 2.5 V reference giving a maximum output voltage of 2.5 V or 5 V. The AD5675 does not have an internal reference; therefore, an ADR431 is provided on-board as a 2.5 V reference source. A different reference voltage can be applied via the EXT_REF SMB connector, if required.
Full data on the AD5675/AD5675R are available in the respective product data sheets, available from Analog Devices, which should be consulted in conjunction with UG-815 when using the evaluation boards.
The evaluation boards interface to the USB port of a PC via the SDP board. The Analysis Control Evaluation (ACE) software is available for use with the evaluation board to allow the user to program the AD5675/AD5675R.
The evaluation boards are compatible the EVAL-SDP-CB1Z Blackfin® SDP controller board (SDP-B), which is available for order on the Analog Devices website at www.analog.com.
Documentation & Resources
Software & Systems Requirements
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
AD5671R Companion Parts
Recommended Low Dropout Regulators
- For an LDO: ADP7102.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.