AD5382

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