ZHCSFV2D December 2016 – December 2018 OPA187 , OPA2187 , OPA4187
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
- 1 特性
- 2 应用
- 3 说明
- 4 修订历史记录
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information: OPA187
- 6.5 Thermal Information: OPA2187
- 6.6 Thermal Information: OPA4187
- 6.7 Electrical Characteristics: High-Voltage Operation
- 6.8 Electrical Characteristics: Low-Voltage Operation
- 6.9 Typical Characteristics
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文档支持
- 12机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息
7.3.5 EMI Rejection
The OPAx187 device uses integrated electromagnetic interference (EMI) filtering to reduce the effects of EMI interference from sources such as wireless communications and densely-populated boards with a mix of analog signal chain and digital components. EMI immunity can be improved with circuit design techniques; the OPAx187 benefits from these design improvements. Texas Instruments has developed the ability to accurately measure and quantify the immunity of an operational amplifier over a broad frequency spectrum extending from 10 MHz to 6 GHz. Figure 38 shows the results of this testing on the OPAx187. Table 2 lists the EMIRR IN+ values for the OPAx187 at particular frequencies commonly encountered in real-world applications. Applications listed in Table 2 may be centered on or operated near the particular frequency shown. Detailed information can also be found in EMI Rejection Ratio of Operational Amplifiers, available for download from www.ti.com.
Figure 38. EMIRR Testing Table 2. OPAx187 EMIRR IN+ for Frequencies of Interest
| FREQUENCY | APPLICATION/ALLOCATION | EMIRR IN+ |
|---|---|---|
| 400 MHz | Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency (UHF) applications | 81.8 dB |
| 900 MHz | Global system for mobile communications (GSM) applications, radio communication, navigation, GPS (to 1.6 GHz), GSM, aeronautical mobile, UHF applications | 102.7 dB |
| 1.8 GHz | GSM applications, mobile personal communications, broadband, satellite, L-band (1 GHz to 2 GHz) | 115.4 dB |
| 2.4 GHz | 802.11b, 802.11g, 802.11n, Bluetooth®, mobile personal communications, industrial, scientific and medical (ISM) radio band, amateur radio and satellite, S-band (2 GHz to 4 GHz) | 150.7 dB |
| 3.6 GHz | Radiolocation, aero communication and navigation, satellite, mobile, S-band | 142.0 dB |
| 5 GHz | 802.11a, 802.11n, aero communication and navigation, mobile communication, space and satellite operation, C-band (4 GHz to 8 GHz) | 173.8 dB |