OPA4820 四路、单位增益、低噪声、电压反馈运算放大器

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


OPA4820
Iq per channel(Max)(mA) 5.7  
Slew Rate(Typ)(V/us) 250  
GBW(Typ)(MHz) 250  
Io(Typ)(mA) 85  
Vs(Min)(V) 4  
Vs(Max)(V) 12.6  
Number of Channels 4  
Pin/Package 14SOIC, 14TSSOP  
Acl, min stable gain(V/V) 1  
BW @ Acl(MHz) 650  
Diff Gain(%)  
Diff Phase(deg)  
Vio(Max)(mV) 0.8  
THD (Fc=1 MHz)(Typ)(dB)  
Settling Time (0.1%)(Typ)(ns)  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)  
Available Channels S, Q  
Vn at Flatband(Typ)(nV/rtHz) 2.5  
Approx. Price (US$) 2.85 | 1ku  
Iib(Max)(nA) 20  
Noninverting Input Current Noise(pA/rtHz)  
2nd Harmonic(dBc)  
3rd Harmonic(dBc)  
@ MHz  
BW @ G=+2(MHz)  
0.1 dB BW Flatness(MHz)  
Crosstalk(-dB)  
Operating Temperature Range(C) -40 to 85  
OPA4820 特性
OPA4820 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
OPA4820ID ACTIVE -40 to 85 3.40 | 1ku SOIC (D) | 14 50 | TUBE  
OPA4820IDG4 ACTIVE -40 to 85 3.40 | 1ku SOIC (D) | 14 50 | TUBE  
OPA4820IDR ACTIVE -40 to 85 2.85 | 1ku SOIC (D) | 14 2500 | LARGE T&R  
OPA4820IDRG4 ACTIVE -40 to 85 2.85 | 1ku SOIC (D) | 14 2500 | LARGE T&R  
OPA4820IPWR ACTIVE -40 to 85 2.85 | 1ku TSSOP (PW) | 14 90 | TUBE  
OPA4820IPWRG4 ACTIVE -40 to 85 2.85 | 1ku TSSOP (PW) | 14 90 | TUBE  
OPA4820IPWT ACTIVE -40 to 85 3.30 | 1ku TSSOP (PW) | 14 2000 | LARGE T&R  
OPA4820IPWTG4 ACTIVE -40 to 85 3.30 | 1ku TSSOP (PW) | 14 2000 | LARGE T&R  
OPA4820 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
OPA4820ID Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820ID OPA4820ID
OPA4820IDG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IDG4 OPA4820IDG4
OPA4820IDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IDR OPA4820IDR
OPA4820IDRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IDRG4 OPA4820IDRG4
OPA4820IPW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IPW OPA4820IPW
OPA4820IPWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IPWG4 OPA4820IPWG4
OPA4820IPWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IPWR OPA4820IPWR
OPA4820IPWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR OPA4820IPWRG4 OPA4820IPWRG4
OPA4820 应用技术支持与电子电路设计开发资源下载
  1. OPA4820 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 高速数据转换 (PDF 1967 KB)
  5. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
  6. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
  7. 运算放大器的单电源操作 (PDF 2174 KB)
  8. Tuning in Amplifiers (PDF 44 KB)
  9. Op Amp Performance Analysis (PDF 76 KB)
  10. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
  11. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
  12. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
OPA4820 工具与软件
名称 型号 工具/软件类型
音频的快速搜索选择工具 AUDIO_SELECTION_TOOL 免费评估工具
OPA4820 评估模块 OPA4820EVM 开发电路板/EVM
用于音频转换器的软件驱动程序 CODECDRIVERS-SW 应用软件