GENERAL DESCRIPTION
The AD5383 is a complete, single-supply, 32-channel, 12-bit denseDAC® available in a 100-lead LQFP package. All 32 channels have an on-chip output amplifier with rail-to-rail operation. The AD5383 includes a programmable 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 optimization of the amplifier slew rate. The AD5383 features

• Double-buffered parallel interface with a 20 ns WR pulse width.
• SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface with interface speeds in excess of 30 MHz.
• I2C-compatible interface that supports a 400 kHz data transfer rate.

FEATURES
    Guaranteed monotonic
    INL error: ±1 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 mode
    Package type: 100-lead LQFP (14 mm × 14 mm)
    User Interfaces
        Parallel
        Serial (SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible,
            featuring data readback)
        I2C-compatible
    Robust 6.5 kV HBM and 2 kV FICDM ESD rating

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 microelectro-mechanical systems (MEMS)
    Control systems
    Instrumentation