The LTC2629CGN-1#PBF is a 12-bit, four-channel voltage-output DAC from Analog Devices, communicating over an I2C serial interface. Each of the four DACs settles to 12-bit accuracy in 7 µs typical, which sets the per-channel update ceiling for applications like multi-point bias trimming or closed-loop setpoint control. Integral nonlinearity is ±1 LSB maximum, differential nonlinearity ±0.5 LSB maximum — the part is guaranteed monotonic, so the output code always moves in the correct direction. This matters for servo loops where a non-monotonic DAC would cause a control reversal. A single 3.3 V rail with a 2.5 V reference, for example, gives a 0 V to 2.5 V output swing with 0.61 mV per LSB.
Package, temperature grade, and board-fit note
The 0.025-inch lead pitch is standard for SSOP-16 and routes easily on a two-layer board with a 0.5 mm trace width. This part is not rated for industrial or automotive environments; if the board sees -40°C or +85°C ambient, look at the AD5325ARMZ or AD5326ARUZ which cover -40°C to +105°C.