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 datatransfer 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
●AD5383-5 SPECIFICATIONS
●AVDD = 4.5 V to 5.5 V; DVDD = 2.7 V to 5.5 V, AGND = DGND = 0 V; external REFIN = 2.5 V; all specifications TMIN to TMAX, unless otherwise noted.
