GENERAL DESCRIPTION

The AD5381 is a complete, single-supply, 40-channel, 12-bit denseDAC® available in a 100-lead LQFP package. All 40 channels have an on-chip output amplifier with rail-to-rail operation.

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

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 monitors

APPLICATIONS

Variable optical attenuators (VOAs)

Level setting (ATE)

Optical micro-electro-mechanical systems (MEMs)

Control systems

Instrumentation