AD746 Dual Precision, 500 ns Settling, BiFET Op Amp

The AD746 is a dual operational amplifier, consisting of two AD744 BiFET op amps on a single chip. These precision monolithic op amps offer excellent dc characteristics plus rapid settling times, high slew rates and ample bandwidths. In addition, the AD746 provides the close matching ac and dc characteristics inherent to amplifiers sharing the same monolithic die. The single pole response of the AD746 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc precision, makes it suitable for use as a buffer amplifier for 12- or 14-bit DACs and ADCs. Furthermore, the AD746's low total harmonic distortion (THD) level of 0.0001% and very close matching ac characteristics make it an ideal amplifier for many demanding audio applications. The AD746 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater. It is available in four performance grades. The AD746J is rated over the commercial temperature range of 0 to +70°C. The AD746A and AD746B are rated over the industrial temperature range of -40°C to +85°C. The AD746S is rated over the military temperature range of -55°C to +125°C and is available processed to MIL-STD-883B, Rev. C. The AD746 is available in three 8-pin packages: plastic mini DIP, hermetic cerdip and surface mount (SOIC). APPLICATIONS Dual Output Buffers for 12- and 14-Bit DACs Input Buffers for Precision ADCs, Wideband Preamplifiers and Low Distortion Audio Circuitry

The single pole response of the AD746 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc precision, makes it suitable for use as a buffer amplifier for 12- or 14-bit DACs and ADCs. Furthermore, the AD746's low total harmonic distortion (THD) level of 0.0001% and very close matching ac characteristics make it an ideal amplifier for many demanding audio applications.

The AD746 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of 2 or greater. It is available in four performance grades. The AD746J is rated over the commercial temperature range of 0 to +70°C. The AD746A and AD746B are rated over the industrial temperature range of -40°C to +85°C. The AD746S is rated over the military temperature range of -55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.

The AD746 is available in three 8-pin packages: plastic mini DIP, hermetic cerdip and surface mount (SOIC).

APPLICATIONS

Features and Benefits
  • AC PERFORMANCE
    500 ns Settling to 0.01% for 10 V Step
    75 V/µs Slew Rate
    0.0001% Total Harmonic Distortion (THD)
    13 MHz Gain Bandwidth
    Internal Compensation for Gains of +2 or Greater 
  • Single Version: AD744
  • DC PERFORMANCE
    0.5 mV max Offset Voltage (AD746B)
    10 µV/°C max Drift (AD746B)
    175 V/mV min Open Loop Gain (AD746B)
    2 µV p-p Noise, 0.1 Hz to 10 Hz
  • Available in Plastic Mini-DIP, Cerdip and Surface Mount Packages
    Available in Tape and Reel in Accordance with EIA-481A Standard 
  • Amplifiers
    AD746 SPICE Macro-Model
    Data Sheets
    Documentnote
    AD746: Dual Precision, 500 ns Settling, BiFET Op Amp Data Sheet (Rev. B)PDF 428 kB
    Application Notes
    Documentnote
    AN-402: Replacing Output Clamping Op Amps with Input Clamping AmpsPDF 55 kB
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0)PDF 166 kB
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed SystemsPDF 228 kB
    User Guides
    Documentnote
    UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC PackagesPDF 208 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD746JNZ Production8 ld PDIPOTH 500 to 70C5.214.69Y
    AD746JRZ Production8 ld SOICOTH 980 to 70C5.214.81Y
    AD746SCHIPS ProductionCHIPS OR DIEREEL 100-55 to 125C045.2Y
    AD746SQ/883B Production8 ld CerDIPOTH 48-55 to 125C55.9750.37N
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-HSAMP-2CPZ-10Evaluation Bare Board for 10-Lead LFCSP18.25Y
    EVAL-HSAMP-2CPZ-8Evaluation Bare Board for 8-Lead LFCSP18.25Y
    EVAL-HSAMP-2RMZ-10Evaluation Bare Board for 10-lead MSOP Package18.25Y
    EVAL-HSAMP-2RMZ-8Evaluation Bare Board for 8 Lead MSOP18.25Y
    EVAL-HSAMP-2RZ-8Evaluation Bare Board for 8 Lead SOIC18.25Y
    Reference Materials
    AD746: Dual Precision, 500 ns Settling, BiFET Op Amp Data Sheet (Rev. B) ad746
    AD746 SPICE Macro-Model Rev. B, 3/91 ad746
    AD746A SPICE Macro-Model Rev. A, 1/91 ad746
    AD746B SPICE Macro-Model Rev. A, 1/91 ad746
    AD746J SPICE Macro-Model Rev. A, 1/91 ad746
    AD746S SPICE Macro-Model Rev. A, 1/91 ad746
    AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps ad829
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0) ad829
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems ad829
    AN-402: 以输入箝位放大器取代输出箝位运算放大器 (Rev. 0) ad829
    AN-417: 在低压高速系统中利用快速轨到轨运算放大器减少设计限制 (Rev. 0) ad829
    AN-581: 单电源应用中的偏置和去耦运算放大器 (Rev. 0) ad829
    UG-128:SOIC封装的双通道高速运算放大器通用评估板 ad8042
    UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages ad8042
    MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps ad829
    MT-032:理想的电压反馈型(VFB)运算放大器 ad829
    MT-059: 补偿输入电容对电流电压转换器所用电压反馈和电流反馈型运算放大器的影响 ad9631
    MT-058: 反馈电容对VFB和CFB运算放大器的影响 ad829
    MT-056: 高速电压反馈运算放大器 ad829
    MT-053:运算放大器失真:HD、THD、THD + N、IMD、SFDR、MTPR ad829
    MT-052:运算放大器噪声指数:不要被误导 ad829
    MT-050: 二阶系统的运算放大器总输出噪声计算 ad9631
    MT-049:单极点系统的运算放大器总输出噪声计算 ad829
    MT-048:运算放大器噪声关系:1/f噪声、均方根(RMS)噪声与等效噪声带宽 ad829
    MT-047:运算放大器噪声 ad829
    MT-033:电压反馈型运算放大器的增益和带宽 ad829
    MT-032: Ideal Voltage Feedback (VFB) Op Amp ad829