Features and Benefits
- High relative accuracy (INL): ±2 LSB maximum at 16 bits
- Tiny package: 3 mm × 3 mm, 16-lead LFCSP
- Total unadjusted error (TUE): ±0.1% of FSR maximum
- Offset error: ±1.5 mV maximum
- Gain error: ±0.1% of FSR maximum
- High drive capability: 20 mA, 0.5 V from supply rails
- User-selectable gain of 1 or 2 (GAIN pin)
- Reset to zero scale or midscale (RSTSEL pin)
- 1.8 V logic compatibility
- 400 kHz I2C-compatible serial interface
- 4 I2C addresses available
- Low glitch: 0.5 nV-sec
- Low power: 1.8 mW at 3 V
- 2.7 V to 5.5 V power supply
- −40°C to +105°C temperature range
Product DetailsThe AD5694, a member of the nanoDAC+™ family, is a low power, quad, 16-bit buffered voltage output DAC. The device includes a gain select pin giving a full-scale output of 0V to VREF (gain = 1) or 0V to 2.VREF (gain = 2). The device operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design, and exhibits less than 0.1% FSR gain error and 1.5 mV offset error performance. The device is available in a 3 mm × 3 mm LFCSP package and in a TSSOP package.
The AD5696 incorporates a power-on reset circuit and a RSTSEL pin; the RSTSEL pin ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place. The part contains a per-channel power-down feature that reduces the current consumption of the device in power-down mode to 4 µA at 3 V.
The AD5696 uses a versatile 2-wire serial interface that operates at clock rates up to 400 kHz and includes a VLOGIC pin intended for 1.8 V/3 V/5 V logic.Product Highlights
- High Relative Accuracy (INL). (12-bit): ±1 LSB maximum
- Excellent DC Performance.
Total unadjusted error: ±0.1% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.1% of FSR maximum
- Two Package Options.
3 mm × 3 mm, 16-lead LFCSP
- Digital gain and offset adjustment
- Programmable attenuators
- Process control (PLC I/O cards)
- Industrial automation
- Data acquisition systems
Evaluation Kits (2)
This Evaluation Board is no longer available for ordering. Please see the AD5696R Evaluation Board.
The Evaluation board for the AD5694R contains a SDP connection and software allowing the AD5694R to be controlled from a SDP board.
The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CB1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.
The EVAL-AD5696RSDZ evaluation board is designed to help users quickly prototype AD5696R circuits and reduce design time. The AD5696R operates from a single 2.7 V to 5.5 V supply. The AD5696R incorporates an internal 2.5 V reference to give an output voltage of 2.5 V or 5 V. The EVAL-AD5696RSDZ evaluation board also incorporates additional voltage references.
The EVAL-AD5696RSDZ interfaces to the USB port of a PC via a system demonstration platform (SDP) board. The analysis control evaluation (ACE) software is available for download from the EVAL-AD5696RSDZ product page to use with the evaluation board to allow the user to program the AD5696R. A PMOD connection is also available to allow the connection of microcontrollers to the evaluation board without the SDP board. Note that when a microcontroller is used through the PMOD connection, the SDP board must be disconnected, and the user is unable to operate the ACE software.
The EVAL-AD5696RSDZ evaluation board is compatible with any Analog Devices SDP board, which can be purchased separately.
For full details, see the AD5696R data sheet, which must be used in conjunction with UG-726 when using the EVAL-AD5696RSDZ evaluation board.
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.
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.