ROHM Introduces New BD77502FVM 2-Channel High-Speed Ground Sense CMOS Op Amp

时间： 2021-01-03 来源：ROHM

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2 channel high-speed ground sense CMOS op amp,operational amplifier,BD77502FVM,ROHM

ROHM introduces the availability of a 2 channel high-speed ground sense CMOS op amp(operational amplifier), BD77502FVM, optimized for consumer and industrial equipment requiring high-speed sensing – such as industrial measurement and control systems.

The proliferation of the Internet of Things (IoT) in recent years has led to a significant increase in the number of electronic components used for advanced control in a variety of applications. This trend towards greater electronics density is leading to noisier environments, making it extremely difficult to implement designs with electromagnetic compatibility (EMC). Op amps play a critical point role because they quickly amplify small signals (from sensors) in many detection systems that provide safety. In addition, printed circuit board design can also be problematic for conventional op amps that are susceptible to oscillation due to capacitive loads (i.e. from wiring).

To mitigate noise issues common with conventional op amps, ROHM has developed the EMARMOUR™ series featuring superior noise tolerant op amps. The first groundbreaking member of the EMARMOUR family was the BD77501G single channel high-speed CMOS op amp that leveraged the original Nano Cap™ technology to prevent oscillation caused by load capacitance. This product has been well-received by many engineers in a variety of fields and regions, and ROHM's latest 2 channel version was developed to meet increasing market demands.

The newest BD77502FVM integrates two op amp devices that prevent oscillation (i.e. due to wiring) while providing high-speed amplification with slew rates up to 10V/µs and breakthrough immunity to electromagnetic interference (EMI). The output voltage across the entire noise frequency band is limited to under ±20mV, which is 10x lower than a conventional op amp. High-speed signal amplification is now achievable without being affected by external noise or load capacitance when used in devices that output small signals such as sensors, thus improving reliability while simplifying circuit designs.

<What is EMARMOUR™?>

EMARMOUR™ is ROHM's unique brand to identify its products that leverage proprietary technologies covering layout, processes, and circuit design to achieve ultra-high noise immunity. This technology limits output voltage fluctuation to less than ±300mV across the entire noise frequency band during noise evaluation testing under the international ISO11452-2 standard. This unprecedented noise immunity reduces design resources while improving reliability by solving issues related to noise in the development of a variety of systems.

<Key Features>

The BD77502FVM, which expands the EMARMOUR™ lineup that delivers unmatched noise tolerance, builds upon the 1ch ground sense CMOS op amp BD77501G widely adopted in the industrial equipment market by offering high-speed operation and preventing oscillation due to load capacitance. And in addition to the following features, the 2ch design supports market demands for more compact board designs.

1. No oscillation and high-speed op amps that minimizes design time related to load capacitance

Original Nano Cap™ power supply technology is used to achieve extremely stable control, making it possible to completely eliminate oscillation caused by load capacitance (i.e. due to wiring) while supporting high-speed amplification (high slew rate: 10V/µs) required in anomaly detection and other systems. Unlike standard op amps that can be difficult to use due to restrictions imposed on the wiring and peripheral components resulting from instability caused by load capacitance, ROHM's new op amp prevents oscillation to ensure stable operation and facilitate application design.

2. Superior noise immunity facilitates noise design requirements (EMARMOUR™ exclusive)

Whereas the output voltage of conventional products can fluctuate by ±200mV or more across the entire noise frequency band, ROHM's latest EMARMOUR™ series op amp achieves unprecedented noise immunity that limits variation to less than ±20mV. This eliminates the need for countermeasures (filter circuits) for each noise frequency, reducing the noise design resources for sensors (which play an important role in a variety of systems) while improving system reliability.

3. Eliminates 16 parts required for noise suppression (EMARMOUR™ exclusive)

The BD77502FVM provides superior noise immunity that eliminates the need for external noise countermeasure components conventionally required for standard products (i.e. RC filters for the power supply, input, and output pins). For example, in the case of a 2ch op amp, ROHM's new product uses 16 fewer external components than conventional solutions.

<Application Examples>

· Facility management equipment such as abnormal current and gas detectors

· Motors requiring high-speed control (signal transmission)

· Inverter control equipment

· Pre-drive buffers for driving transistors

· other industrial and consumer applications requiring high-speed signal transmission and amplification without worrying about load capacitance.

<EMARMOUR™ CMOS Op Amp Lineup>

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本文由宝丁转载自ROHM，原文标题为:New EMARMOUR™ 2 Channel High-Speed Op Amp，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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全球知名半导体制造商ROHM开发出一款双通道高速接地检测CMOS运算放大器*1“BD77502FVM”，非常适用于计量设备、控制设备中使用的异常检测系统以及处理微小信号的各种传感器等需要高速感测的工业设备和消费电子设备，抗噪声性能出色。

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Power supply (Min.) [V] (+5V=5, +/-5V=10)

Power supply (Max.) [V] (+5V=5, +/-5V=10)

Input Voltage Range [V]

Output Voltage Range [V]

Circuit Current (Typ.) [mA/ch]

Input Offset Voltage (Max.) [mV]

Input Bias Current (Typ.) [nA]

Slew Rate (Typ.) [V/µs]

Equivalent input noise voltage (Typ.) [nV/√Hz]

GBW (Typ.) [MHz]

Series

Temperature (Min.)[°C]

Temperature (Max.)[°C]

Rail-to-Rail Input/Output

2.5

5.5

VSS to VDD

VSS+0.010 to VDD-0.010

AEC-Q100 (Automotive Grade)

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运算放大器电路采集

描述- 本资料介绍了罗姆公司（ROHM）生产的多种低电压CMOS运算放大器，包括全摆幅、超低功耗和地感低电压操作型号。资料中详细介绍了这些运算放大器的应用电路，如电压跟随器、反相放大器、非反相放大器、加法电路和差分放大器等。此外，还提供了注意事项，包括产品规格、应用电路示例、设计注意事项和产品使用限制等信息。

型号- BU7262SFBU7262FVMBU7262NUX,BU7475SHFV,BU7242SF,BU7421SG,BU7444SF,BU7261SG,BU7442SF,BU7465SHFV,BU7445HFV,BU7245SHFV,BU7462F,BU7275HFV,BU7244F,BU7442F,BU7264F,BU7205SHFV,BU7295HFV,BU7242NUX,BU7465HFV,BU7271SG,BU7411SG,BU7205HFV,BU7462SF,BU7411G,BU7475HFV,BU7242FVM,BU7295SHFV,BU7241G,BU7261G,BU7265G,BU7442FVM,BU7262NUX,BU7264SF,BU7442NUX,BU7445SHFV,BU7241SG,BU7464SF,BU7441SG,BU7444F,BU7262FVM,BU7262F,BU7275SHFV,BU7464F,BU7242F,BU7462NUX,BU7245HFV,BU7461SG,BU7265SG,BU7244SF,BU7271G,BU7461G,BU7441G,BU7462FVM,BU7421G

2011.03 - ROHM - 应用笔记或设计指南 - Rev.A 代理服务技术支持批量订货查看更多版本

ROHM（罗姆）运算放大器选型指南（英文）

目录- Op Amps Introduction Product Lineup

型号- BD87584YFV-C,BA82902YF-C,BD7282YFJ-C,BA82904YFVM-C,BD87582YFVM-C,TLR2377YFVM-C,BA82902YFV-C,TLR2376YFJ-C,LM2902EYF-C,BA83474YF-C,TLR377YG-C,BA82903YF-C,LM2902EYFV-C,TLR4377YF-C,TLR4377YFV-C,TLR2377YF-C,TLR376YG-C,BD77501G,BD7282YFVM-C,BA83472YF-C,BA83474YFV-C,BD77504FV,BD7284YFV-C,BA82901YFV-C,BD8758XY,BA83472YFVM-C,LM2901EYF-C,LM2904EYF-C,BA82904YF-C,LM2904EYFJ-C,LM2904EYFVM-C,LM2901EYFV-C,BD77502FVM,BA82903YFVM-C,LM2903EYFVM-C,LMR1802YG-C,BA82901YF-C,BD87581YG-C,LM2903EYF-C,BD7281YG-C,TLR4376YFV-C,TLR2376YFVM-C,LMR1802G-LB,TLR2377YFJ-C

01.2022 - ROHM - 选型指南代理服务技术支持批量订货

BU7485G BU7485SG BU7486XXX BU7486SXXX BU7487XX BU7487SXX运算放大器系列接地检测高速低压CMOS运算放大器规格书

描述- 该资料介绍了ROHM公司的CMOS运算放大器系列，包括BU7485G、BU7486xxx、BU7487xx等型号。这些器件具有输入接地感应和全摆幅输出功能，适用于便携式设备和传感器应用。它们具备宽带宽、高转换速率、低电压操作和低输入偏置电流等特点。

型号- BU7486XXX,BU7485SG-TR,BU7486SFVM,BU7486SFV-E2,BU7486FVM,BU7487SF-E2,BU7487SXX,BU7486SXXX,BU7485SG,BU7486SF,BU7487SF,BU7485G-TR,BU7486F-E2,BU7487FV-E2,BU7486F,BU7487SFV,BU7487F-E2,BU7487SFV-E2,BU7485SX,BU748XXXXX-XX,BU7486SF-E2,BU7486FV,BU7487FV,BU7487F,BU7486FV-E2,BU7486FVM-TR,BU7486SFVM-TR,BU7485G,BU7487XX,BU7486SFV

21.Oct.2016 - ROHM - 数据手册 - Rev.003 代理服务技术支持批量订货

BA82904Yxxx-C电子邮箱™*地感运算放大器/比较器

型号- BA82902YF-C,BA82901YFV-C,BA82902YFJ-C,BA82904YFVM-C,BA82904YF-C,BA82902YFV-C,BA82902YFVJ-C,BA82903YFVM-C,BA82901YXXX-C,BA82901YF-C,BA82904YXXX-C,BA82903YF-C,BA82902YXXX-C,BA82903YXXX-C

2020/07/14 - ROHM - 商品及供应商介绍代理服务技术支持批量订货

Operational Amplifiers Low Noise Operational Amplifiers BA4580Rxxx BA4584FV BA4584Rxx

描述- 该资料介绍了ROHM公司生产的低噪声运算放大器系列，包括BA4580Rxxx、BA4584FV和BA4584Rxx。这些芯片集成了两个或四个独立的高增益运算放大器，适用于音频应用以及其他多种应用，具有低噪声、低失真和高工作电压范围的特点。

型号- BA4580RFVT-E2,BA4580RF-E2,BA4584RXX,BA4580RFVM-TR,BA4580RFJ,BA4584R,BA4580RXXX,BA4584FV,BA4580RF,BA4580RFVM,BA4584RF,BA4584RFV,BA4584FV-E2,BA4580RFJ-E2,BA4584RF-E2,BA458XXXXX-XX,BA4580RFVT,BA4584RFV-E2

20.Nov.2014 - ROHM - 数据手册 - Rev.003 代理服务技术支持批量订货