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AD5686/AD5684: Quad, 16-/12-Bit nanoDAC+ with SPI Interface Data Sheet (Rev. C)7/23/2012PDF739 K
Overview
Features and Benefits
- High relative accuracy (INL): ±2 LSB maximum @ 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
- 50 MHz SPI with readback or daisy chain
- 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 Details
The AD5686, 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 2.5 V (gain = 1) or 5 V (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 and a TSSOP package.
The AD5686 also incorporates a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place. Each part contains a per-channel power-down feature that reduces the current consumption of the device to 4 μA at 3 V while in power-down mode.
The AD5686 employs a versatile SPI interface that operates at clock rates up to 50 MHz, and all devices contain a VLOGIC pin intended for 1.8 V/3 V/5 V logic.
Product Highlights
- High Relative Accuracy (INL): ±2 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 and 16-lead TSSOP
Applications
- Digital gain and offset adjustment
- Programmable attenuators
- Process control (PLC I/O 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)
Documentation & Resources
Software & Systems Requirements
Mbed Support
WIKI
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Tools & Simulations
LTspice
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:
AD5686R
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.
IBIS Models
IBS
AD5686R IBIS Model
54.11 K
Reference Designs (1)
Design Resources
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD5686ACPZ-RL7 | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm w/ EP) | |
| AD5686ARUZ | Material Declaration | Reliability Data | 16-Lead TSSOP | |
| AD5686ARUZ-RL7 | Material Declaration | Reliability Data | 16-Lead TSSOP | |
| AD5686BCPZ-RL7 | Material Declaration | Reliability Data | 16-Lead LFCSP (3mm x 3mm w/ EP) | |
| AD5686BRUZ | Material Declaration | Reliability Data | 16-Lead TSSOP | |
| AD5686BRUZ-RL7 | Material Declaration | Reliability Data | 16-Lead TSSOP | |
| Wafer Fabrication Data |
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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.