The DAC8574 is a low-power, quad channel, 16-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC8574 utilizes an I²C compatible two wire serial interface supporting high-speed interface mode with address support of up to sixteen DAC8574’s for a total of 64 channels on the bus.

The DAC8574 requires an external reference voltage to set the output range of the DAC. The DAC8574 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place to the device. The DAC8574 contains a power-down feature, accessed via the internal control register, that reduces the current consumption of the device to 200nA at 5V.

The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment. The power consumption is less than 5mW at V_DD = 5V reducing to 1µW in power-down mode.

The DAC8574 is available in an 16-lead TSSOP package.

• MicroPower Operation: 950 μA at 5 V VDD
• Power-On Reset to Zero
• +2.7 V to +5.5 V Analog Power Supply
• 16-Bit Monotonic
• Settling Time: 10μs to ±0.003% FSR
• I2C? Interface Up to 3.4 Mbps
• Data Transmit Capability
• On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
• Double-Buffered Input Register
• Address Support for up to Sixteen DAC8574s
• Synchronous Update Support for up to 64 Channels
• Operation From –40°C to 105°C
• Small 16 Lead TSSOP Package
• APPLICATIONS
  • Process Control
  • Data Acquistion Systems
  • Closed-Loop Servo Control
  • PC Peripherals
  • Portable Instrumentation

I2C is a trademark of Philips Corporation.

• Resolution (Bits)
• 16
• Number of DAC channels (#)
• 4
• Interface type
• I2C
• Output type
• Buffered Voltage
• Settling time (μs)
• 10
• Features
• —
• Reference type
• Ext
• Architecture
• String
• Rating
• Catalog
• Output range (Max) (mA/V)
• 6
• Output range (Min) (mA/V)
• 0
• Operating temperature range (C)
• -40 to 105

DAC8574的完整型号有：DAC8574IPW、DAC8574IPWR，以下是这些产品的关键参数及官网采购报价：

DAC8574IPW，工作温度：-40 to 105，封装：TSSOP (PW)-16，包装数量MPQ：90个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网DAC8574IPW的批量USD价格：9.176（1000+）

DAC8574IPWR，工作温度：-40 to 105，封装：TSSOP (PW)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网DAC8574IPWR的批量USD价格：7.647（1000+）

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