The DAC8803 is a quad, 14-bit, current-output digital-to-analog converter (DAC) designed to operate from a single +2.7-V to 5-V supply.

The applied external reference input voltage V_REF determines the full-scale output current. An internal feedback resistor (R_FB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.

A doubled buffered serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip select (CS). In addition, a serial data out pin (SDO) allows for daisy chaining when multiple packages are used. A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turn on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1.

The DAC8803 is packaged in an SSOP package.

• Relative Accuracy: 1 LSB Max
• Differential Nonlinearity: 1 LSB Max
• 2-mA Full-Scale Current with VREF = ±10 V
• 0.5-μs Settling Time
• Midscale or Zero-Scale Reset
• Four Separate 4Q Multiplying Reference Inputs
• Reference Bandwidth: 10 MHz
• Reference Dynamics: -105 dB THD
• SPI?-Compatible 3-Wire Interface: 50-MHz
• Double Buffered Registers Enable
• Simultaneous Multichannel Update
• Internal Power-On Reset
• Compact SSOP-28 Package
• Industry-Standard Pin Configuration
• APPLICATIONS
  • Automatic Test Equipment
  • Instrumentation
  • Digitally-Controlled Calibration

SPI is a trademark of Motorola, Inc. All trademarks are the property of their respective owners.

• Resolution (Bits)
• 14
• Number of DAC channels (#)
• 4
• Interface type
• SPI
• Output type
• Unbuffered Current
• Settling time (μs)
• 0.5
• Features
• Reset to Mid-Scale, SDO
• Reference type
• Ext
• Architecture
• Multiplying DAC
• Rating
• Catalog
• Output range (Max) (mA/V)
• 2
• Output range (Min) (mA/V)
• 0
• Operating temperature range (C)
• -40 to 85

DAC8803的完整型号有：DAC8803IDBR、DAC8803IDBT，以下是这些产品的关键参数及官网采购报价：

DAC8803IDBR，工作温度：-40 to 85，封装：SSOP (DB)-28，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网DAC8803IDBR的批量USD价格：12.245（1000+）

DAC8803IDBT，工作温度：-40 to 85，封装：SSOP (DB)-28，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网DAC8803IDBT的批量USD价格：14.245（1000+）

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