The AD5383 is a 32-channel, 12-Bit DAC and is available in a 14 mm x 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 AD5383 includes an internal 1.25 V/2.5V low-drift reference. The AD5383 contains a parallel interface with a WR pulsewidth of 20 ns, a 30 MHz SPI interface and a 400 kHz I2C-compatible interface.
- 32-channel DAC
- Guaranteed Monotonic To 12-bits
- High Accuracy (INL = ±1 LSB)
- User programmable Offset and gain for system calibration
- On-Chip 1.25 V/2.5 V Reference
- With 10 ppm/°C TempCo
- On-Chip Output Amplifier With
- Rail-To-Rail Operation
- Optional Boost Mode For Faster Settling Time (6 µs typ)
- Serial SPI, I2C and Parallel Interfaces
- Serial SPI, I2C and Parallel Interfaces
- Clear Function to user-programmable code
- Low Power (300 µA/channel)
- Applications
- Variable optical attenuators (VOA)
- Level setting (ATE)
- Optical micro-electro-mechanical systems (MEMS)
- Control systems
- Instrumentation
