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OPA843的基本参数
  • 制造厂商:TI
  • 产品类别:放大器
  • 技术类目:运算放大器 (op amps) - 高速运算放大器 (GBW ≥ 50MHz)
  • 功能描述:宽带、低失真、中增益、电压反馈运算放大器
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OPA843的产品详情:

The OPA843 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using a high Gain Bandwidth (GBW), two gain-stage design, the OPA843 gives a medium gain range device with exceptional dynamic range. The "classic" differential input complements this high dynamic range with DC precision beyond most high-speed amplifier products. Very low input offset voltage and current, high Common-Mode Rejection Ratio (CMRR) and Power-Supply Rejection Ratio (PSRR), and high open-loop gain combine to give a high DC precision amplifier along with low noise and high 3rd-order intercept.

12- to 16-bit converter interfaces will benefit from this combination of features. High-speed transimpedance applications can be implemented with exceptional DC precision as well. Differential configurations using two OPA843s can deliver very low distortion to high output voltages, as shown below.

OPA843的优势和特性:
  • HIGH BANDWIDTH: 260MHz (G = +5)
  • GAIN BANDWIDTH PRODUCT: 800MHz
  • LOW INPUT VOLTAGE NOISE: 2.0nV/√Hz
  • VERY LOW DISTORTION: –96dBc (5MHz)
  • HIGH OPEN-LOOP GAIN: 110dB
  • FAST 12-BIT SETTLING: 10.5ns (0.01%)
  • LOW INPUT OFFSET VOLTAGE: 300μV
  • OUTPUT CURRENT: ±100mA
  • APPLICATIONS
    • ADC/DAC BUFFER AMPLIFIER
    • LOW DISTORTION "IF" AMPLIFIER
    • ACTIVE FILTERS
    • LOW-NOISE RECEIVER
    • WIDEBAND TRANSIMPEDANCE
    • TEST INSTRUMENTATION
    • PROFESSIONAL AUDIO
    • OPA643 UPGRADE

All trademarks are the property of their respective owners.

OPA843的参数(英文):
  • Architecture
  • Voltage FB
  • Number of channels (#)
  • 1
  • Total supply voltage (Min) (+5V=5, +/-5V=10)
  • 8
  • Total supply voltage (Max) (+5V=5, +/-5V=10)
  • 12
  • GBW (Typ) (MHz)
  • 800
  • BW @ Acl (MHz)
  • 500
  • Acl, min spec gain (V/V)
  • 3
  • Slew rate (Typ) (V/us)
  • 1000
  • Vn at flatband (Typ) (nV/rtHz)
  • 2
  • Vn at 1 kHz (Typ) (nV/rtHz)
  • 2
  • Iq per channel (Typ) (mA)
  • 20.2
  • Vos (offset voltage @ 25 C) (Max) (mV)
  • 1.2
  • Rail-to-rail
  • No
  • Features
  • Decompensated
  • Rating
  • Catalog
  • Operating temperature range (C)
  • -40 to 85
  • CMRR (Typ) (dB)
  • 95
  • Input bias current (Max) (pA)
  • 35000000
  • Offset drift (Typ) (uV/C)
  • 4
  • Output current (Typ) (mA)
  • 100
  • 2nd harmonic (dBc)
  • 76
  • 3rd harmonic (dBc)
  • 102
  • @ MHz
  • 5
OPA843具体的完整产品型号参数及价格(美元):

OPA843的完整型号有:OPA843ID、OPA843IDBVR、OPA843IDBVT、OPA843IDR,以下是这些产品的关键参数及官网采购报价:

OPA843ID,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:75个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网OPA843ID的批量USD价格:2.077(1000+)

OPA843IDBVR,工作温度:-40 to 85,封装:SOT-23 (DBV)-5,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网OPA843IDBVR的批量USD价格:1.731(1000+)

OPA843IDBVT,工作温度:-40 to 85,封装:SOT-23 (DBV)-5,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网OPA843IDBVT的批量USD价格:2.077(1000+)

OPA843IDR,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网OPA843IDR的批量USD价格:1.731(1000+)

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OPA843的评估套件:

DEM-OPA-SO-1A — 采用 SO-8 封装的单路运算放大器评估模块

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

DEM-OPA-SOT-1A — Single op amp evaluation module for SOT23-5/6 package

The DEM-OPA-SOT-1A is a demonstration fixture that helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the SOT(DBV) package.

OPA843 PSpice Model (Rev. A)

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)

TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表

需要 HSpice (...)

ANALOG-ENGINEER-CALC — 模拟工程师计算器

模拟工程师计算器旨在加快模拟电路设计工程师经常使用的许多重复性计算。该基于 PC 的工具提供图形界面,其中显示各种常见计算的列表(从使用反馈电阻器设置运算放大器增益到为稳定模数转换器 (ADC) 驱动器缓冲器电路选择合适的电路设计元件)。除了可用作单独的工具之外,该计算器还能够很好地与模拟工程师口袋参考书中所述的概念配合使用。 lock = 需要出口许可(1分钟)

VOLT-DIVIDER-CALC — 分压器确定一组分压电阻

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

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