Part Number: AD5381
Function: 40-Channel, 3 V/5 V, Single-Supply, 12-Bit, denseDAC
Package: 100-lead LQFP (14 mm × 14 mm) Type
Manufacturer: Analog Devices
Pinouts:
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.
Features
1. Guaranteed monotonic
2. INL error: ±1 LSB max
3. On-chip 1.25 V/2.5 V, 10 ppm/°C reference
4. Temperature range: –40°C to +85°C
5. Rail-to-rail output amplifier
6. Power-down
7. Robust 6.5 kV HBM and 2 kV FICDM ESD rating
INTEGRATED FUNCTIONS
1. Channel monitor
2. Simultaneous output update via LDAC
3. Clear function to user-programmable code
4. Amplifier boost mode to optimize slew rate
5. User-programmable offset and gain adjust
6. Toggle mode enables square wave generation
7. Thermal monitors
Applications:
1. Variable optical attenuators (VOAs)
2. Level setting (ATE)
3. Optical micro-electro-mechanical systems (MEMs)
4. Control systems
5. Instrumentation
Other data sheets are available within the file:
AD5381BSTZ-3, AD5381BSTZ-3-REEL, AD5381BSTZ-5, AD5381BSTZ-5-REEL
AD5381 Datasheet PDF Download
