32通道， 3 V / 5 V单电源， 14位电压输出DAC 32-Channel, 3 V/5 V, Single-Supply, 14-Bit, Voltage Output DAC
Product Details
The is a 32-channel, 14-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 AD5382 includes an internal 1.25 V/2.5 V low-drift reference. The AD5382 contains a parallel interface with a WR pulsewidth of 20 ns, a 30 MHz SPI interface and a 400 kHz I2C-compatible interface.
This device is pin-to-pin compatible with the AD5380 40-ch 14-bit DAC, the AD5381 40-ch 12-bit DAC and the AD5383 32-ch 12-bit DAC.
**Applications**
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- Variable optical attenuators VOAs
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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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- Guaranteed Monotonic To 14-Bits
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- High Accuracy INL = ±4 LSB
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- User Programmable Offset And Gain For System Calibration
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- On-Chip 1.25 V/2.5 V Reference With 10 ppm/ºC TempCo
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- On-Chip Output Amplifier With Rail-To-Rail Operation
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- Optional Boost Mode For Faster Slew Rate 8 µs typ.
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- Serial SPI, I2C and Parallel Interfaces
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- Simultaneous Update Of DAC Outputs Via Pin
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- Clear Function To User-Programmable Code
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- Low Power 300 µA/channel
