32-Channel 14-Bit 3 V/5 V Single-Supply Voltage-Output DAC

The AD5382 is a 32-channel, 14-Bit DAC and is available in a 14 mm × 14 mm 100-lead LQFP package. It operates from a single 3 V or 5 V supply. Programmable gain (m) and offset (c) are provided per channel to facilitate system calibration. Each DAC channel is double-buffered which allows all DAC outputs to be updated simultaneously via an LDAC pin. Each channel has an on-chip output amplifier which allows rail-to-rail operation. The AD5382 includes an internal 1.25 V/2.5 V low-drift reference. The AD5382 contains a parallel interface with a WR pulse width of 20 ns, a 30 MHz SPI interface and a 400 kHz I2C-compatible interface.

This device is pin-to-pin compatible with the AD5380 (40-ch 14-bit DAC), the AD5381 (40-ch 12-bit DAC) and the AD5383 (32-ch 12-bit DAC).

APPLICATIONS

* Variable optical attenuators (VOAs)

* Level setting (ATE)

* Optical micro-electro-mechanical systems (MEMS)

* Control systems

* Instrumentation

* Guaranteed Monotonic To 14-Bits

* User Programmable Offset And Gain For System Calibration

* On-Chip 1.25 V/2.5 V Reference With 10 ppm/ºC TempCo

* On-Chip Output Amplifier With Rail-To-Rail Operation