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Product Detailed Parameters
- Description：IC DAC 16BIT V-OUT 16LFCSP
- Series：nanoDAC+®
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：16
- Number of D/A Converters：4
- Settling Time：8µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：1.8V ~ 5.5V
- INL/DNL (LSB)：±2, ±1 (Max)
- Architecture：String DAC
- Operating Temperature：-40°C ~ 105°C
- Package / Case：16-WFQFN Exposed Pad, CSP
- Supplier Device Package：16-LFCSP (3x3)
- Mounting Type：Surface Mount
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Overview
The AD5686ACPZ-RL7 is a quad, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an SPI interface and operates on a single 2.7 V to 5.5 V supply. Key electrical parameters include a maximum integral nonlinearity (INL) of ±2 LSB, a total unadjusted error (TUE) of ±0.1% FSR, and a settling time of 5 µs. The device provides a high drive capability of 20 mA and supports a user-selectable gain of 1 or 2 via the GAIN pin. It includes a power-on reset circuit and per-channel power-down modes that reduce current consumption to 4 µA.
Feature Summary
- Quad 16-bit resolution with ±2 LSB maximum INL and ±0.1% FSR TUE
- High drive capability: 20 mA output current with rail-to-rail operation
- User-selectable gain (×1 or ×2) via hardware pin for flexible output ranges
- Versatile 50 MHz SPI interface with daisy-chain and readback support
Applications
- Digital gain and offset adjustment circuits
- Programmable attenuators
- Process control PLC I/O cards
- Industrial automation systems
- Data acquisition systems
Procurement Notes
Verify the package type matches the application requirements, as the AD5686 series is available in both LFCSP and TSSOP packages. Confirm the specific grade (A or B) required for accuracy specifications. Ensure the ordering suffix corresponds to the desired reel packaging format. Cross-reference the datasheet revision to confirm all timing and electrical characteristics align with the design specifications.
Selection Notes
Select the AD5686ACPZ-RL7 when four independent 16-bit channels are required in a compact form factor. Choose this part over the AD5684 if higher resolution is needed, noting the difference in INL specifications. Consider the external reference input requirement, as this model does not include an internal reference. Evaluate the thermal performance in the LFCSP package if operating near the upper temperature limits.
Part Context
The AD5686ACPZ-RL7 belongs to the AD5686/AD5684 nanoDAC+ family, which offers low-power, high-accuracy solutions. The 'ACPZ' suffix indicates the 3 mm × 3 mm, 16-lead LFCSP package option. This family shares architectural similarities with the AD569x series but utilizes an SPI interface instead of I2C. The RL7 suffix typically denotes tape and reel packaging for automated assembly.
Replacement Considerations
The AD5686ARUZ is a pin-compatible alternative in the 16-lead TSSOP package. For applications requiring an internal reference, consider the AD5686R series. The AD5684 offers similar functionality with 12-bit resolution. Verify that any substitute maintains the required 16-bit accuracy and SPI interface compatibility.
