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データ コンバータ
D/A コンバータ (DAC)
高精度 DAC (≤ 10MSPS)

DAC7728

アクティブ

オクタル、低消費電力、12 ビット、±16.5V 出力、パラレル入力、D/A コンバータ

ご注文はこちら
データシート

この製品には新バージョンがあります

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DAC61408 アクティブ 8 チャネル、12 ビット、高電圧出力 DAC、リファレンス内蔵 Smaller 6mm x 6mm package with integrated reference

DAC7728

アクティブ
データシート ご注文はこちら

製品詳細

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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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート Octal, 12-Bit, Low-Power, High-Voltage Output, Parallel Input D/A Converter データシート (Rev. A) 2009/11/24

設計と開発

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シミュレーション・モデル

DAC7728 IBIS Model

SBAM102.ZIP (115 KB) - IBIS モデル
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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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パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
VQFN (RTQ) 56 Ultra Librarian
TQFP (PAG) 64 Ultra Librarian
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