AD5381 Datasheet PDF

Part Number : AD5381

Function : 40-Channel, 3 V/5 V, Single-Supply, 12-Bit, denseDAC

Manufacturers : Analog Devices

Pinouts :

AD5381 datasheet

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. The AD5381 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, which allows optimization of the amplifier slew rate. The AD5381 contains a double-buffered parallel interface featuring 20 ns WR pulse width, an SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface with interface speeds in excess of 30 MHz, and an I2C compatible interface that supports a 400 kHz data transfer rate. An input register followed by a DAC register provides double buffering, allowing the DAC outputs to be updated independently or simultaneously using the LDAC input. Each channel has a programmable gain and offset adjust register that allows the user to fully calibrate any DAC chan nel. Power consumption is typically 0.25 mA/channel with boost mode disabled.

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
Package type: 100-lead LQFP (14 mm × 14 mm)
User interfaces
Serial (SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible,
featuring data readback)
Robust 6.5 kV HBM and 2 kV FICDM ESD rating

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

Variable optical attenuators (VOAs)
Level setting (ATE)
Optical micro-electro-mechanical systems (MEMs)
Control systems

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 TMINto TMAX,
unless otherwise noted.

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AD5381 pdf

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