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DAC91001 現行 具有超低雜訊、低突波和優異 THD 的 18 位元單調 DAC Device with lower glitch ( 1 nV-s ), faster settling time ( 1us ), low noise and exceptional THD

產品詳細資料

Resolution (bps) 18 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 2 Settling time (µs) 5 Reference type Ext Architecture R-2R Rating Catalog Features Reset to Mid-Scale Sample/update rate (Msps) 0.2 Power consumption (typ) (mW) 6 Operating temperature range (°C) -40 to 105 Product type Precision DAC
Resolution (bps) 18 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 2 Settling time (µs) 5 Reference type Ext Architecture R-2R Rating Catalog Features Reset to Mid-Scale Sample/update rate (Msps) 0.2 Power consumption (typ) (mW) 6 Operating temperature range (°C) -40 to 105 Product type Precision DAC
VQFN (RGE) 24 16 mm² 4 x 4
  • 18-bit monotonic over temperature range
  • Relative accuracy: ±2 LSB maximum
  • Low-noise: 24 nV/√Hz
  • Fast settling: 5 µs
  • On-chip output buffer amplifier with rail-to-rail operation
  • Single power supply: 2.7 V to 5.5 V
  • DAC loading control
  • Selectable power-on reset to zero-scale or midscale
  • Power-down mode
  • Unipolar straight binary or
    two’s complement input mode
  • Fast SPI with Schmitt-triggered inputs: up to 50 MHz, 1.8-V, 3-V, and 5-V logic
  • Specified temperature range: –40°C to +105°C
  • Small package: VQFN-24, 4 mm × 4 mm
  • 18-bit monotonic over temperature range
  • Relative accuracy: ±2 LSB maximum
  • Low-noise: 24 nV/√Hz
  • Fast settling: 5 µs
  • On-chip output buffer amplifier with rail-to-rail operation
  • Single power supply: 2.7 V to 5.5 V
  • DAC loading control
  • Selectable power-on reset to zero-scale or midscale
  • Power-down mode
  • Unipolar straight binary or
    two’s complement input mode
  • Fast SPI with Schmitt-triggered inputs: up to 50 MHz, 1.8-V, 3-V, and 5-V logic
  • Specified temperature range: –40°C to +105°C
  • Small package: VQFN-24, 4 mm × 4 mm

The DAC9881 is an 18-bit, single-channel, voltage-output digital-to-analog converter (DAC). The device features 18-bit monotonicity, excellent linearity, very low-noise, and fast settling time. The on-chip precision output amplifier allows for a rail-to-rail output swing to be achieved over the full supply range of 2.7 V to 5.5 V.

The device supports a standard serial peripheral interface (SPI) capable of operating with input data clock frequencies of up to 50 MHz. The DAC9881 requires an external reference voltage to set the output range of the DAC channel. A programmable power-on reset circuit is also incorporated into the device to make sure that the DAC output powers up at zero-scale or midscale, and remains there until a valid write command.

Additionally, the DAC9881 has the capability to function in either unipolar straight binary or two’s complement mode. The DAC9881 provides low-power operation. To further save energy, power-down mode can be achieved by accessing the PDN pin, thereby reducing the current consumption to 25 µA at 5 V. Power consumption is 4 mW at 5 V, reducing to 125 µW in power-down mode.

The DAC9881 is an 18-bit, single-channel, voltage-output digital-to-analog converter (DAC). The device features 18-bit monotonicity, excellent linearity, very low-noise, and fast settling time. The on-chip precision output amplifier allows for a rail-to-rail output swing to be achieved over the full supply range of 2.7 V to 5.5 V.

The device supports a standard serial peripheral interface (SPI) capable of operating with input data clock frequencies of up to 50 MHz. The DAC9881 requires an external reference voltage to set the output range of the DAC channel. A programmable power-on reset circuit is also incorporated into the device to make sure that the DAC output powers up at zero-scale or midscale, and remains there until a valid write command.

Additionally, the DAC9881 has the capability to function in either unipolar straight binary or two’s complement mode. The DAC9881 provides low-power operation. To further save energy, power-down mode can be achieved by accessing the PDN pin, thereby reducing the current consumption to 25 µA at 5 V. Power consumption is 4 mW at 5 V, reducing to 125 µW in power-down mode.

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類型 標題 日期
* Data sheet DAC9881 18-Bit, Single-Channel, Low-Noise, Voltage-Output Digital-to-Analog Converter datasheet (Rev. C) PDF | HTML 2019年 11月 14日
EVM User's guide DAC9881EVM User's Guide (Rev. A) 2009年 10月 12日

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支援軟體

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硬體開發
開發板
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軟體
軟體程式設計工具
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模擬型號

DAC9881 IBIS Model Version 1.0

SBAM009.ZIP (61 KB) - IBIS Model
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