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具有串行接口和轨到轨电压输出的 16 位、双通道、低功耗数模转换器
Resolution (Bits) 16
Number of DAC channels (#) 2
Interface type SPI
Output type Buffered Voltage
Settling time (μs) 10
Reference type Ext
Architecture String
Rating Catalog
Output range (Max) (mA/V) 5.5
Output range (Min) (mA/V) 0
Operating temperature range (C) -40 to 105
  • 16-Bit Monotonic Over Temperature
  • MicroPower Operation: 500 μA at 5 V
  • Power-On Reset to Zero-Scale
  • Power Supply: 2.7 V to 5.5 V
  • Settling Time: 10 μs to ±0.003% FSR
  • Ultra-Low AC Crosstalk: –100 dB Typ
  • Low-Power Serial Interface With
    Schmitt-Triggered Inputs
  • On-Chip Output Buffer Amplifier With Rail-to-Rail
    Operation
  • Double-Buffered Input Architecture
  • Simultaneous or Sequential Output Update
    and Powerdown
  • Available in a Tiny VSSOP-8 Package

The DAC8532 is a dual channel, 16-bit digital-to-analog converter (DAC) offering low power operation and a flexible serial host interface. Each on-chip precision output amplifier allows rail-to-rail output swing to be achieved over the supply range of 2.7 V to 5.5 V. The device supports a standard 3-wire serial interface capable of operating with input data clock frequencies up to 30 MHz for VDD = 5 V.

The DAC8532 requires an external reference voltage to set the output range of each DAC channel. The device incorporates a power-on reset circuit which ensures that the DAC outputs power up at zero-scale and remain there until a valid write takes place. The DAC8532 provides a flexible power-down feature, accessible over the serial interface, that reduces the current consumption of the device to 200 nA at 5 V.

The low-power consumption of the device in normal operation makes it ideally suited to portable battery-operated equipment and other low-power applications. The ?power? consumption ?is 2.5 mW at? 5 V, reducing to 1 μW in power-down mode.

The DAC8532 is available in a VSSOP-8 package with a specified operating temperature range of –40°C to 105°C.