- 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:四路、单位增益、低噪声、电压反馈运算放大器
- 点击这里打开及下载OPA4820的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
The OPA4820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications.
Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps.
Exceptionally low dG/dP (0.01%/0.03°) supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14.
- HIGH BANDWIDTH: 220MHz (G = +2)
- HIGH OUTPUT CURRENT: ±85mA
- LOW INPUT NOISE: 2.5nV/Hz
- LOW SUPPLY CURRENT: 5.7mA/ch
- FLEXIBLE SUPPLY VOLTAGE: ±2V to ±6.3V Dual Supply +4V to +12.6V Single Supply
- EXCELLENT DC ACCURACY:
- Maximum 25°C Input Offset Voltage = 0.8mV
- Maximum 25°C Input Offset Current = 500nA
- APPLICATIONS
- LOW–COST VIDEO LINE DRIVERS
- ADC PREAMPS
- ACTIVE FILTERS
- LOW–NOISE INTEGRATORS
- PORTABLE TEST EQUIPMENT
- OPTICAL CHANNEL AMPLIFIERS
- LOW–POWER, BASEBAND AMPLIFIERS
- CCD IMAGING CHANNEL AMPLIFIERS
- OPA4650 UPGRADE
All trademarks are the property of their respective owners.
- Architecture
- Voltage FB
- Number of channels (#)
- 4
- Total supply voltage (Min) (+5V=5, +/-5V=10)
- 5
- Total supply voltage (Max) (+5V=5, +/-5V=10)
- 12
- GBW (Typ) (MHz)
- 250
- BW @ Acl (MHz)
- 650
- Acl, min spec gain (V/V)
- 1
- Slew rate (Typ) (V/us)
- 240
- Vn at flatband (Typ) (nV/rtHz)
- 2.5
- Vn at 1 kHz (Typ) (nV/rtHz)
- 2.5
- Iq per channel (Typ) (mA)
- 5.6
- Vos (offset voltage @ 25 C) (Max) (mV)
- 0.8
- Rail-to-rail
- No
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 85
- CMRR (Typ) (dB)
- 85
- Input bias current (Max) (pA)
- 20000000
- Offset drift (Typ) (uV/C)
- 4
- Output current (Typ) (mA)
- 85
- 2nd harmonic (dBc)
- 84
- 3rd harmonic (dBc)
- 92
- @ MHz
- 1
OPA4820的完整型号有:OPA4820ID、OPA4820IDR、OPA4820IPWR、OPA4820IPWT,以下是这些产品的关键参数及官网采购报价:
OPA4820ID,工作温度:-40 to 85,封装:SOIC (D)-14,包装数量MPQ:50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OPA4820ID的批量USD价格:3.8(1000+)
OPA4820IDR,工作温度:-40 to 85,封装:SOIC (D)-14,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OPA4820IDR的批量USD价格:3.167(1000+)
OPA4820IPWR,工作温度:-40 to 85,封装:TSSOP (PW)-14,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OPA4820IPWR的批量USD价格:3.167(1000+)
OPA4820IPWT,工作温度:-40 to 85,封装:TSSOP (PW)-14,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OPA4820IPWT的批量USD价格:3.8(1000+)
DEM-OPA-SO-4A — 采用 SO-14 封装的四路运算放大器通用评估模块
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.(...)