AD5625R/AD5645R/AD5665, AD5625/AD5665 are Analog Devices' 12-/14-/16-bit nanoDACs with low power, smallest pin compatibility, external reference and three I2C interfaces. They are suitable for process control, data acquisition systems, portable battery-powered instruments, digital gain and offset adjustment.
The AD5625R, AD5645R, AD5665R and AD5625, AD5665 are low‑power quad nano‑DACs offered by Analog Devices. They provide 12‑, 14‑ or 16‑bit resolution, optional on‑chip reference, and a I²C‑compatible serial interface that supports standard (100 kHz), fast (400 kHz) and high‑speed (3.4 MHz) modes. The devices operate from a single 2.7 V to 5.5 V supply and feature guaranteed monotonicity, per‑channel power‑down, and hardware LDAC/CLR functions.
The datasheet includes detailed electrical specifications such as resolution, relative accuracy, differential non‑linearity, power‑up time, output voltage range, and reference characteristics. It also provides functional block diagrams, pin configurations, timing specifications for the serial interface, and absolute maximum ratings. This information helps designers integrate the nanoDACs into process‑control, data‑acquisition, portable instruments, and programmable voltage/current source applications.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Resolution (AD5625R) | 12 bits |
| Resolution (AD5645R) | 14 bits |
| Resolution (AD5665R) | 16 bits |
| Differential Nonlinearity (AD5625R) | +1 LSB |
| Output Voltage Range (internal reference disabled) | 0 V to Vop |
They operate from a single 2.7 V to 5.5 V supply.
The AD5665R provides 16‑bit resolution.
The output swings from 0 V to Vop when the internal reference is disabled.