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

DAC7728

現行

八、低功耗、12 位元 +/-16.5V 輸出平行輸入數位轉類比轉換器

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open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
DAC61408 現行 具有整合式內部參考的 8 通道、12 位元高電壓輸出 DAC Smaller 6mm x 6mm package with integrated reference

DAC7728

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Number of DAC channels 8 Interface type Parallel Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 15 Reference type Ext Architecture String Rating Catalog Features On-chip Offset and Gain Calibration, Reset to Mid-Scale Sample/update rate (Msps) 0.066 Power consumption (typ) (mW) 107 Operating temperature range (°C) -40 to 105
Resolution (Bits) 12 Number of DAC channels 8 Interface type Parallel Output type Buffered Voltage Output voltage range (V) -16.5 to 16.5 INL (max) (±LSB) 1 Settling time (µs) 15 Reference type Ext Architecture String Rating Catalog Features On-chip Offset and Gain Calibration, Reset to Mid-Scale Sample/update rate (Msps) 0.066 Power consumption (typ) (mW) 107 Operating temperature range (°C) -40 to 105
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm) TQFP (PAG) 64 144 mm² (12 mm × 12 mm)
  • Bipolar Output: ±3V, up to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 13.5mW/Ch
  • Relative Accuracy: 1LSB Max
  • Flexible User Calibration
  • Low Zero/Gain Error: ±1 LSB Max
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4, x6
  • Programmable Offset
  • 12-Bit Parallel Interface: 50MHz (Write Operation)
  • Packages: QFN-56 (8mm x 8mm), TQFP-64 (10mm x 10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications
  • Bipolar Output: ±3V, up to ±16.5V
  • Unipolar Output: 0V to +33V
  • 12-Bit Resolution
  • Low Power: 13.5mW/Ch
  • Relative Accuracy: 1LSB Max
  • Flexible User Calibration
  • Low Zero/Gain Error: ±1 LSB Max
  • Low Glitch: 4nV-s
  • Settling Time: 15µs
  • Channel Monitor Output
  • Programmable Gain: x4, x6
  • Programmable Offset
  • 12-Bit Parallel Interface: 50MHz (Write Operation)
  • Packages: QFN-56 (8mm x 8mm), TQFP-64 (10mm x 10mm)
  • APPLICATIONS
    • Automatic Test Equipment
    • PLC and Industrial Process Control
    • Communications

The DAC7728 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed over the entire signal chain. The output range can be offset by using the DAC Offset Register.

The DAC7728 features a standard, high-speed, 12-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).

The DAC7728 is pin-to-pin compatible with the DAC8728 (16-bit) and the DAC8228 (14-bit).

The DAC7728 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed over the entire signal chain. The output range can be offset by using the DAC Offset Register.

The DAC7728 features a standard, high-speed, 12-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).

The DAC7728 is pin-to-pin compatible with the DAC8728 (16-bit) and the DAC8228 (14-bit).
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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 Octal, 12-Bit, Low-Power, High-Voltage Output, Parallel Input D/A Converter datasheet (Rev. A) 2009/11/24

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模擬型號

DAC7728 IBIS Model

SBAM102.ZIP (115 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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VQFN (RTQ) 56 Ultra Librarian
TQFP (PAG) 64 Ultra Librarian
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