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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 16LFCSP
- Series：nanoDAC+®
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Number of Bits：12
- Number of D/A Converters：4
- Settling Time：7µs
- 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)：±0.12, ±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 AD5684BCPZ-RL7 is a quad, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) from the nanoDAC+ family by Analog Devices. It features an SPI interface with readback capability and operates on a single 2.7 V to 5.5 V supply. The device guarantees monotonicity with a maximum Integral Nonlinearity (INL) of ±1 LSB and a Total Unadjusted Error (TUE) of ±0.1% FSR. It includes a user-selectable gain pin for full-scale outputs of 2.5 V or 5 V, a power-on reset circuit, and per-channel power-down modes reducing current consumption to 4 µA. Packaged in a compact 3 mm × 3 mm LFCSP.
Feature Summary
- Quad 12-bit resolution with ±1 LSB maximum INL
- SPI interface supporting up to 50 MHz clock rates
- User-selectable gain (×1 or ×2) via GAIN pin
- Power-on reset to zero scale or midscale via RSTSEL pin
Applications
- Digital gain and offset adjustment
- Programmable attenuators
- Process control PLC I/O cards
- Industrial automation systems
- Data acquisition systems
Procurement Notes
Verify the specific grade (A or B) required for your application, as specifications such as INL and offset error vary between grades. Confirm that the LFCSP-16 package matches your PCB footprint. Ensure the external reference voltage aligns with the device's input range requirements for the selected gain setting.
Selection Notes
Select the AD5684BCPZ-RL7 when four independent 12-bit channels are needed in a small form factor. Choose Grade A for tighter accuracy specifications (±0.12% TUE) or Grade B for standard performance (±0.1% TUE). Verify logic voltage compatibility (1.62 V to 5.5 V) if interfacing with low-voltage microcontrollers.
Part Context
This component belongs to the AD5686/AD5684 nanoDAC+ family, which shares identical pinouts and functionality but differs in resolution. The AD5686 offers 16-bit resolution, while the AD5684 provides 12-bit resolution. Both utilize the same 16-lead LFCSP and TSSOP packages and support the same SPI command set.
Replacement Considerations
The AD5686BCPZ-RL7 is a direct pin-compatible alternative offering higher 16-bit resolution. For I2C interfaces, consider the AD5694 series. Ensure any replacement maintains the same package type and voltage specifications.
