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

DAC7311

現行

採用 6 接腳 SC70 封裝且適用電池供電應用的 12 位元單通道超低功耗 DAC

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
DAC63001 現行 具有 Hi-Z、EEPROM、波形產生器的 12 位元、1 通道低功耗電壓/電流輸出智慧型 DAC Smaller power consumption (35uA)

DAC7311

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext Architecture String Rating Catalog Features Cost Optimized, Low Power Sample/update rate (Msps) 0.083 Power consumption (typ) (mW) 0.14 Operating temperature range (°C) -40 to 125 Product type General-purpose DAC
Resolution (Bits) 12 Number of DAC channels 1 Interface type SPI Output type Buffered Voltage Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 1 Settling time (µs) 6 Reference type Ext Architecture String Rating Catalog Features Cost Optimized, Low Power Sample/update rate (Msps) 0.083 Power consumption (typ) (mW) 0.14 Operating temperature range (°C) -40 to 125 Product type General-purpose DAC
SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1
  • Relative accuracy:
    • 0.25 LSB INL (DAC5311: 8-bit)
    • 0.5 LSB INL (DAC6311: 10-bit)
    • 1 LSB INL (DAC7311: 12-bit)
  • microPower operation: 80 µA at 2.0 V
  • Power-down: 0.5 µA at 5 V, 0.1 µA at 2.0 V
  • Wide power supply: 2.0 V to 5.5 V
  • Power-on reset to zero scale
  • Straight binary data format
  • Low power serial interface with Schmitt-triggered inputs: up to 50 MHz
  • On-chip output buffer amplifier, rail-to-rail operation
  • SYNC interrupt facility
  • Extended temperature range –40°C to +125°C
  • Pin-compatible family in a tiny, 6-pin SC70 package
  • Relative accuracy:
    • 0.25 LSB INL (DAC5311: 8-bit)
    • 0.5 LSB INL (DAC6311: 10-bit)
    • 1 LSB INL (DAC7311: 12-bit)
  • microPower operation: 80 µA at 2.0 V
  • Power-down: 0.5 µA at 5 V, 0.1 µA at 2.0 V
  • Wide power supply: 2.0 V to 5.5 V
  • Power-on reset to zero scale
  • Straight binary data format
  • Low power serial interface with Schmitt-triggered inputs: up to 50 MHz
  • On-chip output buffer amplifier, rail-to-rail operation
  • SYNC interrupt facility
  • Extended temperature range –40°C to +125°C
  • Pin-compatible family in a tiny, 6-pin SC70 package

The 8-bit DAC5311, 10-bit DAC6311, and 12-bit DAC7311 (DACx311) are low-power, single-channel, voltage output digital-to-analog converters (DACs). The low power consumption in normal operation (0.55 mW at 5 V, reducing to 2.5 µW in power-down mode) makes the DACx311 an excellent choice for portable, battery-operated applications.

These devices are monotonic by design, provide excellent linearity, and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, three-wire serial interface that operates at clock rates of up to 50 MHz, and is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.

All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that powers up the DAC output at 0 V and remains at 0 V until a valid write to the device occurs. The DACx311 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device to 0.1 µA at 2.0 V in power-down mode.

These devices are pin-compatible with the DAC8311 and DAC8411, offering an easy upgrade path from 8‑bit, 10‑bit, and 12‑bit resolution to 14‑bit and 16‑bit. All devices are available in a small, 6‑pin, SC70 (SOT) package. This package offers a flexible, pin- and function-compatible, drop-in DAC within the family over an extended temperature range of –40°C to +125°C.

The 8-bit DAC5311, 10-bit DAC6311, and 12-bit DAC7311 (DACx311) are low-power, single-channel, voltage output digital-to-analog converters (DACs). The low power consumption in normal operation (0.55 mW at 5 V, reducing to 2.5 µW in power-down mode) makes the DACx311 an excellent choice for portable, battery-operated applications.

These devices are monotonic by design, provide excellent linearity, and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, three-wire serial interface that operates at clock rates of up to 50 MHz, and is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.

All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that powers up the DAC output at 0 V and remains at 0 V until a valid write to the device occurs. The DACx311 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device to 0.1 µA at 2.0 V in power-down mode.

These devices are pin-compatible with the DAC8311 and DAC8411, offering an easy upgrade path from 8‑bit, 10‑bit, and 12‑bit resolution to 14‑bit and 16‑bit. All devices are available in a small, 6‑pin, SC70 (SOT) package. This package offers a flexible, pin- and function-compatible, drop-in DAC within the family over an extended temperature range of –40°C to +125°C.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet DACx311 2-V to 5.5-V, 80-µA, 8-Bit, 10-Bit, and 12-Bit, Low-Power, Single-Channel, Digital-to-Analog Converters in SC70 Package datasheet (Rev. D) PDF | HTML 2023年 8月 17日
Circuit design Loop-Powered 4mA to 20mA Transmitter Circuit (Rev. A) PDF | HTML 2024年 9月 19日
User guide Precision DAC SPICE Models Quick-Start Guide 2017年 2月 22日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DAC7311EVM — DAC7311 評估模組

The SC70 DAC EVM is an evaluation module designed for the prototyping and evaluation of the DAC8411, DAC8311, DAC7311, DAC6311 and DAC5311 digital to analog converters (DAC). These 8 to 16-bit, string DACs operate with a high speed serial clock (up to 50MHz) and offer excellent performance with (...)

使用指南: PDF
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DXP — DXP EVM GUI

DAC Exerciser Program (DXP)is a software tool from Texas Instruments for evaluating DACs without the requirements of expensive pattern generators or writing complex software. When used with a Texas Instruments DAC EVM and a modular motherboard, it allows for simple and easy digital signal (...)

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SLAC782 — Source Files for SLAA866

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模擬型號

DAC7311 IBIS Model (Rev. A)

SBAM029A.ZIP (11 KB) - IBIS Model
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模擬型號

DAC7311 Parallel PSpice Model

SBAM220.ZIP (14 KB) - PSpice Model
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模擬型號

DAC7311 Parallel TINA-TI Reference Design

SBAM218.TSC (1040 KB) - TINA-TI Reference Design
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DAC7311 Parallel TINA-TI Spice Model (Rev. A)

SBAM219A.ZIP (167 KB) - TINA-TI Spice Model
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DAC7311 Serial PSpice Model

SBAM223.ZIP (14 KB) - PSpice Model
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DAC7311 Serial TINA-TI Reference Design

SBAM221.TSC (267 KB) - TINA-TI Reference Design
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DAC7311 Serial TINA-TI Spice Model (Rev. A)

SBAM222A.ZIP (384 KB) - TINA-TI Spice Model
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計算工具

ANALOG-ENGINEER-CALC — 類比工程師計算機

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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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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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
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參考設計

TIDA-01081 — 機械視覺的 LED 照明控制參考設計

此 LED 照明控制參考設計展現了驅動與控制多個高功率發光二極體 (LED) 串列的獨特方式。此參考設計專為工業機械視覺系統所設計，也適合其他工業或汽車照明應用。此設計允許使用者對 LED 電流和時序進行編程，以實現 LED 安全過度驅動，進而提高亮度。此設計可自動運作，但也可透過隔離式介面觸發或產生觸發。內部電路區塊支援廣泛的輸入電壓範圍、可編程輸入電流和輸入電源控制，並可防止反極性、過電壓與過熱。
Design guide: PDF
電路圖: PDF
參考設計

TIPD158 — Loop-powered 4-mA to 20-mA transmitter EMC and EMI-tested reference design

This certified reference design implements a 12-bit loop-powered, or 2-wire, transmitter using DAC7311, OPA317 and TL431B. The design includes a protection circuit that provides immunity to the IEC61000-4 test suite. The design also includes a circuit to rectify a reverse polarity supply voltage. (...)
使用指南: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian
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