製品詳細

Resolution (Bits) 12 Number of DAC channels 1 Interface type Parallel CMOS Sample/update rate (Msps) 125 Features Low Power Rating Catalog Interpolation 1x Power consumption (typ) (mW) 175 SFDR (dB) 82 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
Resolution (Bits) 12 Number of DAC channels 1 Interface type Parallel CMOS Sample/update rate (Msps) 125 Features Low Power Rating Catalog Interpolation 1x Power consumption (typ) (mW) 175 SFDR (dB) 82 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
SOIC (DW) 28 184.37 mm² 17.9 x 10.3 TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • Member of the Pin-Compatible CommsDAC™ Product Family
  • 125 MSPS Update Rate
  • 12-Bit Resolution
  • Spurious Free Dynamic Range (SFDR) to Nyquist at 40 MHz Output: 60 dBc
  • 1 ns Setup/Hold Time
  • Differential Scalable Current Outputs: 2 mA to 20 mA
  • On-Chip 1.2 V Reference
  • 3 V and 5 V CMOS-Compatible Digital Interface
  • Straight Binary or Twos Complement Input
  • Power Dissipation: 175 mW at 5 V, Sleep Mode: 25 mW at 5 V
  • Package: 28-Pin SOIC and TSSOP

CommsDAC is a trademark of Texas Instruments Incorporated.

  • Member of the Pin-Compatible CommsDAC™ Product Family
  • 125 MSPS Update Rate
  • 12-Bit Resolution
  • Spurious Free Dynamic Range (SFDR) to Nyquist at 40 MHz Output: 60 dBc
  • 1 ns Setup/Hold Time
  • Differential Scalable Current Outputs: 2 mA to 20 mA
  • On-Chip 1.2 V Reference
  • 3 V and 5 V CMOS-Compatible Digital Interface
  • Straight Binary or Twos Complement Input
  • Power Dissipation: 175 mW at 5 V, Sleep Mode: 25 mW at 5 V
  • Package: 28-Pin SOIC and TSSOP

CommsDAC is a trademark of Texas Instruments Incorporated.

The THS5661A is a 12-bit resolution digital-to-analog converter (DAC) specifically optimized for digital data transmission in wired and wireless communication systems. The 12-bit DAC is a member of the CommsDAC series of high-speed, low-power CMOS digital-to-analog converters. The CommsDAC family consists of pin compatible 14-, 12-, 10-, and 8-bit DACs. All devices offer identical interface options, small outline package, and pinout. The THS5661A offers superior ac and dc performance while supporting update rates up to 125 MSPS.

The THS5661A operates from an analog and digital supply of 3 V to 5.5 V. Its inherent low power dissipation of 175 mW ensures that the device is well-suited for portable and low-power applications. Lowering the full-scale current output reduces the power dissipation without significantly degrading performance. The device features a SLEEP mode, which reduces the standby power to approximately 25 mW, thereby optimizing the power consumption for system needs.

The THS5661A is manufactured in Texas Instruments advanced high-speed mixed-signal CMOS process. A current-source-array architecture combined with simultaneous switching shows excellent dynamic performance. On-chip edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference provide a complete monolithic DAC solution. The digital supply range of 3 V to 5.5 V supports 3 V and 5 V CMOS logic families. Minimum data input setup and hold times allow for easy interfacing with external logic. The THS5661A supports both a straight binary and twos complement input word format, enabling flexible interfacing with digital signal processors.

The THS5661A provides a nominal full-scale differential output current of 20 mA and < 300 k output impedance, supporting both single-ended and differential applications. The output current can be directly fed to the load (e.g., external resistor load or transformer), with no additional external output buffer required. An accurate on-chip reference and control amplifier allows the user to adjust this output current from 20 mA down to 2 mA, with no significant degradation of performance. This reduces power consumption and provides 20 dB gain range control capabilities. Alternatively, an external reference voltage and control amplifier may be applied in applications using a multiplying DAC. The output voltage compliance range is 1.25 V.

The THS5661A is available in both a 28-pin SOIC and TSSOP package. The device is characterized for operation over the industrial temperature range of –40°C to 85°C.

The THS5661A is a 12-bit resolution digital-to-analog converter (DAC) specifically optimized for digital data transmission in wired and wireless communication systems. The 12-bit DAC is a member of the CommsDAC series of high-speed, low-power CMOS digital-to-analog converters. The CommsDAC family consists of pin compatible 14-, 12-, 10-, and 8-bit DACs. All devices offer identical interface options, small outline package, and pinout. The THS5661A offers superior ac and dc performance while supporting update rates up to 125 MSPS.

The THS5661A operates from an analog and digital supply of 3 V to 5.5 V. Its inherent low power dissipation of 175 mW ensures that the device is well-suited for portable and low-power applications. Lowering the full-scale current output reduces the power dissipation without significantly degrading performance. The device features a SLEEP mode, which reduces the standby power to approximately 25 mW, thereby optimizing the power consumption for system needs.

The THS5661A is manufactured in Texas Instruments advanced high-speed mixed-signal CMOS process. A current-source-array architecture combined with simultaneous switching shows excellent dynamic performance. On-chip edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference provide a complete monolithic DAC solution. The digital supply range of 3 V to 5.5 V supports 3 V and 5 V CMOS logic families. Minimum data input setup and hold times allow for easy interfacing with external logic. The THS5661A supports both a straight binary and twos complement input word format, enabling flexible interfacing with digital signal processors.

The THS5661A provides a nominal full-scale differential output current of 20 mA and < 300 k output impedance, supporting both single-ended and differential applications. The output current can be directly fed to the load (e.g., external resistor load or transformer), with no additional external output buffer required. An accurate on-chip reference and control amplifier allows the user to adjust this output current from 20 mA down to 2 mA, with no significant degradation of performance. This reduces power consumption and provides 20 dB gain range control capabilities. Alternatively, an external reference voltage and control amplifier may be applied in applications using a multiplying DAC. The output voltage compliance range is 1.25 V.

The THS5661A is available in both a 28-pin SOIC and TSSOP package. The device is characterized for operation over the industrial temperature range of –40°C to 85°C.

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* データシート 12-Bit, 125 MSPS, CommsDAC Digital-to-Analog Converter データシート (Rev. B) 2002年 9月 25日
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評価ボード

THS5661EVM — THS5661A 評価モジュール

The THS56x1 evaluation module (EVM) allows the user to easily evaluate the THS56x1A CommsDAC family. The THS56x1A family features 125 MSPS update rate and is specifically optimized for use in high-speed digital communication applications. The CommsDAC family consists of the pin-compatible 8-bit (...)

ユーザー ガイド: PDF
シミュレーション・モデル

THS5661 IBIS Model

SLWC057.ZIP (5 KB) - IBIS Model
計算ツール

MATCHGAIN-CALC — Wideband Comp Current Output DAC to SE Interface: Impr Matching for Gain ; Compliance Volt Swing

NOTE: Calculator software is available when downloading the application note.
  • Click on "abstract" to view abstract of document.
  • Open the ZIP file to extract the calculator tool.
  • Open the PDF file to view the application note.

High-speed digital-to-analog converters (DACs) most often use a (...)

シミュレーション・ツール

PSPICE-FOR-TI — TI Design / シミュレーション・ツール向け PSpice®

PSpice® for TI は、各種アナログ回路の機能評価に役立つ、設計とシミュレーション向けの環境です。設計とシミュレーションに適したこのフル機能スイートは、Cadence® のアナログ分析エンジンを使用しています。PSpice for TI は無償で使用でき、アナログや電源に関する TI の製品ラインアップを対象とする、業界でも有数の大規模なモデル・ライブラリが付属しているほか、選択された一部のアナログ動作モデルも利用できます。

設計とシミュレーション向けの環境である PSpice for TI (...)
パッケージ ピン数 ダウンロード
SOIC (DW) 28 オプションの表示
TSSOP (PW) 28 オプションの表示

購入と品質

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  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 材質成分
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
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