40通道， 3V / 5V单电源， 14位电压输出DAC 40-Channel, 3V/5V Single Supply, 14-Bit, Voltage-Output DAC
Product Details
The is a complete, single-supply, 40-channel, 14-bit DAC available in a 100-lead LQFP package. All 40 channels have an on-chip output amplifier with rail-to-rail operation. The AD5380 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 AD5380 contains a double-buffered parallel interface that features a 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 indepen-dently 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 off.
**Applications**
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- Variable optical attenuators VOA
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- Level setting ATE
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- Optical micro-electro-mechanical systems MEMS
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- Control systems
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- Instrumentation
### Features and Benefits
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- Chinese data sheet available
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- Guaranteed Monotonic
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- INL error: ±4 LSB max
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- On-Chip 1.25 V/2.5 V Reference
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- With 10 ppm/ºC reference
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- Temperature range: –40°C to +85°C
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- Rail-to-rail output amplifier
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- Power down
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- Robust 6.5 kV HBM and 2 kV FICDM ESD rating
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- User interfaces: Parallel Serial
SPI®-, QSPI™-, MICROWIRE™-, DSP-compatible, featuring data readback
I2C®-compatible
INTEGRATED FUNCTIONS
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- Channel monitor
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- Simultaneous output update via LDAC
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- Clear function to user programmable code
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- Amplifier boost mode to optimize slew rate
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- User programmable offset and gain adjust
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- Toggle mode enables square wave generation
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- Thermal monitor
