OPA4872 4:1 高速多路复用器
The OPA4872 offers a very wideband 4:1 multiplexer in an SO-14 package. Using only 10.6mA, the OPA4872 provides a user-settable output amplifier gain with greater than 500MHz large-signal bandwidth (2VPP). The switching glitch is improved over earlier solutions using a new (patented) input stage switching approach. This technique uses current steering as the input switch while maintaining an overall closed-loop design. The OPA4872 exhibits an off isolation of 88dB in either Disable or Shutdown mode. With greater than 500MHz small-signal bandwidth at a gain of 2, the OPA4872 gives a typical 0.1dB gain flatness to greater than 120MHz.
System power may be optimized using the chip enable feature for the OPA4872. Taking the chip enable (EN) line high powers down the OPA4872 to less than 3
|
OPA4872 |
| Iq per channel (Max) (mA) |
2.75 |
| Slew Rate (Typ) (V/us) |
2300 |
| Io (Typ) (mA) |
75 |
| Vs (Min) (V) |
7 |
| Vs (Max) (V) |
12 |
| Number of Channels |
1 |
| Pin/Package |
14SOIC |
| Acl, min stable gain (V/V) |
1 |
| BW @ Acl (MHz) |
1100 |
| Diff Gain (%) |
0.035 |
| Diff Phase (deg) |
0.005 |
| Vio (Max) (mV) |
5 |
| THD (Fc=1 MHz) (Typ) (dB) |
-75 |
| Settling Time (0.1%) (Typ) (ns) |
14 |
| Offset Voltage Drift (+/-) (Max) (uV/Degrees Celsius) |
20 |
| Available Channels |
1 |
| Vn at Flatband (Typ) (nV/rtHz) |
4.5 |
| Approx. Price (US$) |
2.15 | 1ku |
| Iib (Max) (nA) |
14 |
| Noninverting Input Current Noise (pA/rtHz) |
4 |
| 2nd Harmonic (dBc) |
60 |
| 3rd Harmonic (dBc) |
78 |
| @ MHz |
10 |
| BW @ G=+2 (MHz) |
500 |
| 0.1 dB BW Flatness (MHz) |
120 |
| Inverting Input Current Noise (pA/rtHz) |
19 |
| Crosstalk (-dB) |
-80 |
OPA4872 特性
- 500MHz SMALL-SIGNAL BANDWIDTH
- 500MHz, 2VPP BANDWIDTH
- 0.1dB GAIN FLATNESS to 120MHz
- 10ns CHANNEL SWITCHING TIME
- LOW SWITCHING GLITCH: 40mVPP
- 2300V/µs SLEW RATE
- 0.035%/0.005° DIFFERENTIAL GAIN, PHASE
- QUIESCENT CURRENT = 10.6mA
- 1.1mA QUIESCENT CURRENT IN SHUTDOWN MODE
- 88dB OFF ISOLATION IN DISABLE OR SHUTDOWN (10MHz)
· APPLICATIONS
- VIDEO ROUTER
- LCD AND PLASMA DISPLAY
- HIGH SPEED PGA
- DROP-IN UPGRADE TO AD8174
OPA4872 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| OPA4872ID |
ACTIVE |
|
2.60 | 1ku |
SOIC (D) | 14 |
50 | TUBE |
|
| OPA4872IDG4 |
ACTIVE |
|
2.60 | 1ku |
SOIC (D) | 14 |
50 | TUBE |
|
| OPA4872IDR |
ACTIVE |
|
2.15 | 1ku |
SOIC (D) | 14 |
2500 | LARGE T&R |
|
| OPA4872IDRG4 |
ACTIVE |
|
2.15 | 1ku |
SOIC (D) | 14 |
2500 | LARGE T&R |
|
OPA4872 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 |
| OPA4872ID |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA4872ID |
OPA4872ID |
| OPA4872IDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA4872IDG4 |
OPA4872IDG4 |
| OPA4872IDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA4872IDR |
OPA4872IDR |
| OPA4872IDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA4872IDRG4 |
OPA4872IDRG4 |
OPA4872 应用技术支持与电子电路设计开发资源下载
- OPA4872 数据资料 dataSheet 下载.PDF
- TI 德州仪器特殊功能放大器产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
- 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
- Demystifying the Operational Transconductance Amplifier (sboa117.HTM, 8 KB)
- Using the OPA4872 with the OPA4872 to Generate 4mA to 20mA Output (PDF 167 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
OPA4872 工具与软件
| 培训内容 |
型号 |
软件/工具类型 |
| OPA4872EVM 评估模块 |
OPA4872EVM |
开发电路板/EVM |
