The DAC7558 is a 12-bit, octal-channel, voltage output DAC with exceptional linearity and monotonicity. Its proprietary architecture minimizes undesired transients such as code to code glitch and channel to channel crosstalk. The low-power DAC7558 operates from a single 2.7-V to 5.5-V supply. The DAC7558 output amplifiers can drive a 2-, 200-pF load rail-to-rail with 5-µs settling time; the output range is set using an external voltage reference.

The 3-wire serial interface operates at clock rates up to 50 MHz and is compatible with SPI, QSPI, Microwire™, and DSP interface standards. The outputs of all DACs may be updated simultaneously or sequentially. The parts incorporate a power-on-reset circuit to ensure that the DAC outputs power up to zero volts and remain there until a valid write cycle to the device takes place. The parts contain a power-down feature that reduces the current consumption of the device to under 2 µA.

The small size and low-power operation makes the DAC7558 ideally suited for battery-operated portable applications. The power consumption is typically 7.5 mW at 5 V, 3.7 mW at 3 V, and reduces to 1 µW in power-down mode.

The DAC7558 is available in a 32-lead QFN package and is specified over -40°C to 105°C.

• 2.7-V to 5.5-V Single Supply
• 12-Bit Linearity and Monotonicity
• Rail-to-Rail Voltage Output
• Settling Time: 5 μs (Max)
• Ultralow Glitch Energy: 0.1 nVs
• Ultralow Crosstalk: -100 dB
• Low Power: 1.8 mA (Max)
• Per-Channel Power Down: 2 μA (Max)
• Power-On Reset to Zero Scale and Mid Scale
• SPI-Compatible Serial Interface: Up to 50 MHz
• Simultaneous or Sequential Update
• Asynchronous Clear
• Binary and Twos-Complement Capability
• Daisy-Chain Operation
• 1.8-V to 5.5-V Logic Compatibility
• Specified Temperature Range: -40°C to 105°C
• Small, 5-mm x 5-mm, 32-Lead QFN Package
• APPLICATIONS
  • Portable Battery-Powered Instruments
  • Digital Gain and Offset Adjustment
  • Programmable Voltage and Current Sources
  • Programmable Attenuators
  • Industrial Process Control

Microwire is a trademark of National Semiconductor Corp..

• Resolution (Bits)
• 12
• Number of DAC channels (#)
• 8
• Interface type
• SPI
• Output type
• Buffered Voltage
• Settling time (μs)
• 5
• Features
• Reset to Mid-Scale, SDO
• 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

DAC7558的完整型号有：DAC7558IRHBR、DAC7558IRHBT，以下是这些产品的关键参数及官网采购报价：

DAC7558IRHBR，工作温度：-40 to 105，封装：VQFN (RHB)-32，包装数量MPQ：3000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DAC7558IRHBR的批量USD价格：6.728（1000+）

DAC7558IRHBT，工作温度：-40 to 105，封装：VQFN (RHB)-32，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DAC7558IRHBT的批量USD价格：8.074（1000+）

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