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數據轉換器
數位轉類比轉換器 (DAC)
精密 DAC (≤10 MSPS)

DAC8568

現行

具 2.5V、2ppm/°C 內部參考的 16 位元、八通道、超低突波、電壓輸出 DAC

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產品規格表

DAC8568

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 12 Settling time (µs) 5 Reference type Ext, Int Architecture String Rating Catalog Features Current source/sink DAC, Reset to Mid-Scale Sample/update rate (Msps) 0.1 Power consumption (typ) (mW) 2.2 Operating temperature range (°C) -40 to 125 Product type Precision DAC
Resolution (Bits) 16 Number of DAC channels 8 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 12 Settling time (µs) 5 Reference type Ext, Int Architecture String Rating Catalog Features Current source/sink DAC, Reset to Mid-Scale Sample/update rate (Msps) 0.1 Power consumption (typ) (mW) 2.2 Operating temperature range (°C) -40 to 125 Product type Precision DAC
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Relative Accuracy:
    • DAC7568 (12-Bit): 0.3 LSB INL
    • DAC8168 (14-Bit): 1 LSB INL
    • DAC8568 (16-Bit): 4 LSB INL
  • Glitch Energy: 0.1nV-s
  • Internal Reference:
    • 2.5V Reference Voltage (disabled by default)
    • 0.004% Initial Accuracy (typ)
    • 2ppm/°C Temperature Drift (typ)
    • 5ppm/°C Temperature Drift (max)
    • 20mA Sink/Source Capability
  • Power-On Reset to Zero Scale or Midscale
  • Ultralow Power Operation: 1.25mA at 5V Including Internal Reference Current
  • Wide Power-Supply Range: +2.7V to +5.5V
  • Monotonic Over Entire Temperature Range
  • Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
  • On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
  • Temperature Range: –40°C to +125°C
  • Relative Accuracy:
    • DAC7568 (12-Bit): 0.3 LSB INL
    • DAC8168 (14-Bit): 1 LSB INL
    • DAC8568 (16-Bit): 4 LSB INL
  • Glitch Energy: 0.1nV-s
  • Internal Reference:
    • 2.5V Reference Voltage (disabled by default)
    • 0.004% Initial Accuracy (typ)
    • 2ppm/°C Temperature Drift (typ)
    • 5ppm/°C Temperature Drift (max)
    • 20mA Sink/Source Capability
  • Power-On Reset to Zero Scale or Midscale
  • Ultralow Power Operation: 1.25mA at 5V Including Internal Reference Current
  • Wide Power-Supply Range: +2.7V to +5.5V
  • Monotonic Over Entire Temperature Range
  • Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
  • On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
  • Temperature Range: –40°C to +125°C

The DAC7568, DAC8168, and DAC8568 are low-power, voltage-output, eight-channel, 12-, 14-, and 16-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5V, 2ppm/°C internal reference (disabled by default), giving a full-scale output voltage range of 2.5V or 5V. The internal reference has an initial accuracy of 0.004% and can source up to 20mA at the VREFIN/VREFOUT pin. These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC7568, DAC8168, and DAC8568 incorporate a power-on-reset circuit that ensures the DAC output powers up at either zero scale or midscale until a valid code is written to the device. These devices contain a power-down feature, accessed over the serial interface, that reduces current consumption to typically 0.18µA at 5V. Power consumption (including internal reference) is typically 2.9mW at 3V, reducing to less than 1µW in power-down mode. The low power consumption, internal reference, and small footprint make these devices ideal for portable, battery-operated equipment.

The DAC7568, DAC8168, and DAC8568 are drop-in and function-compatible with each other, and are available in TSSOP-16 and TSSOP-14 packages.

The DAC7568, DAC8168, and DAC8568 are low-power, voltage-output, eight-channel, 12-, 14-, and 16-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5V, 2ppm/°C internal reference (disabled by default), giving a full-scale output voltage range of 2.5V or 5V. The internal reference has an initial accuracy of 0.004% and can source up to 20mA at the VREFIN/VREFOUT pin. These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC7568, DAC8168, and DAC8568 incorporate a power-on-reset circuit that ensures the DAC output powers up at either zero scale or midscale until a valid code is written to the device. These devices contain a power-down feature, accessed over the serial interface, that reduces current consumption to typically 0.18µA at 5V. Power consumption (including internal reference) is typically 2.9mW at 3V, reducing to less than 1µW in power-down mode. The low power consumption, internal reference, and small footprint make these devices ideal for portable, battery-operated equipment.

The DAC7568, DAC8168, and DAC8568 are drop-in and function-compatible with each other, and are available in TSSOP-16 and TSSOP-14 packages.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 DAC7568, DAC8168, DAC8568 12-/14-/16-Bit, Octal-Channel, Ultralow Glitch, Voltage Output, Digital-to-Analog Converters with 2.5-V 2-ppm/°C Internal Reference datasheet (Rev. F) PDF | HTML 2018/4/6
使用指南 BOOST-DAC8568 Getting Started Guide 2016/6/7

設計與開發

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開發板

BOOST-DAC8568 — DAC8568 低功耗、電壓輸出、八通道 16 位元 DAC BoosterPack

BOOST-DAC8568 (Booster Pack) 是方便好用的平台，可連接 MSP430F5529 LaunchPad。  DAC8568 裝置是低功率、電壓輸出、八通道、16 位元的數位轉類比轉換器 (DAC)。  此裝置包含 2.5V、2ppm/°C 內部參考（預設為停用），可提供 2.5V 的全刻度輸出電壓範圍。內部參考的初始準確度為 0.004%，並可提供高達 20mA 的源極功能。
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開發板

DAC8568EVM — DAC8568 評估模組

The DACxx68 EVM is an evaluation module designed for the prototyping and evaluation of the DAC7568, DAC8168 and DAC8568 digital to analog converters (DAC). These 12 to 16-bit, eight channel string DACs operate with a high speed serial clock (up to 50MHz) and offer excellent performance with ultra (...)

使用指南: PDF
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韌體

SBAC151 — BOOST-DAC8568 Firmware

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支援軟體

DXP — DXP EVM GUI

DAC 操作器程序 (DXP) 是一款德州儀器的軟體工具，無需昂貴的模式產生器或編寫複雜軟體，即可評估 DAC。搭配德州儀器 DAC EVM 和模組化主機板使用時，可為 DAC 產生簡單易用的數位訊號，以產生用於量測和評估用途的類比輸出。

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模擬型號

DAC8568 IBIS Model (Rev. A)

SBAM030 (1012 KB) - IBIS 模型
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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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TSSOP (PW) 16 Ultra Librarian
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