GENERAL DESCRIPTION
The AD5384 is a complete single-supply, 40-channel, 14-bit DAC available in a 100-lead CSPBGA package. All 40 channels have an on-chip output amplifier with rail-to-rail operation. The AD5384 includes an internal 1.25 V/2.5 V, 10 ppm/°C reference, an on-chip channel monitor function that multiplexes the analog outputs to a common MON_OUT pin for external monitoring, and an output amplifier boost mode that allows the amplifier slew rate to be optimized. The AD5384 contains a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards with interface speeds in excess of 30 MHz and an I2C-compatible interface supporting 400 kHz data transfer rate.

FEATURES
    Guaranteed monotonic
    INL error: ±4 LSB max
    On-chip 1.25 V/2.5 V, 10 ppm/°C reference
    Temperature range: –40°C to +85°C
    Rail-to-rail output amplifier
    Power-down
    Package type: 100-lead CSPBGA (10 mm × 10 mm)
    User Interfaces:
        Serial (SPI-®/QSPI-™/MICROWIRE-™/DSP-compatible,
            featuring data readback)
        I2C-®compatible

INTEGRATED FUNCTIONS
    Channel monitor
    Simultaneous output update via LDAC
    Clear function to user-programmable code
    Amplifier boost mode to optimize slew rate
    User-programmable offset and gain adjust
    Toggle mode enables square wave generation
    Thermal monitor

APPLICATIONS
    Variable optical attenuators (VOA)
    Level setting (ATE)
    Optical micro-electro-mechanical systems (MEMS)
    Control systems
    Instrumentation