MCP635-E/MF - Dual 24MHz Rail-to-Rail Op Amp | Microchip
N.º da peça: MCP635-E/MF ✗ Fim de vidaMCP635-E/MF Visão geral
An operational amplifier is an analog signal-processing IC that amplifies the voltage difference between its two inputs. Within the broader power-management and semiconductor hierarchy, a dual rail-to-rail op amp combines two amplifier channels in one package. Rail-to-rail output capability allows the output voltage to approach the available supply rails, improving output range in compact low-voltage systems.
The MCP635-E/MF offers a typical 24 MHz gain-bandwidth product, 10 nV/√Hz input noise at 1 MHz, 10 V/µs slew rate, and 8 mV input-offset voltage. Its minimum common-mode rejection ratio of 63 dB helps suppress common-mode interference. The dual configuration reduces package count when two independent gain stages, active filters, or buffer functions are required.
Its CMOS architecture supports low-voltage operation and rail-to-rail output behavior. The exposed-pad 10-DFN package provides a compact footprint and an efficient thermal path when copper area is used correctly. With a typical operating current of 85 mA and typical short-circuit current of 70 mA, the device is suited to signal paths that require moderate bandwidth without the size of a discrete implementation.
Typical applications include instrumentation front ends, sensor conditioning, active filters, audio and communications buffers, and low-voltage control systems. The dual channels can implement matched gain stages, buffers, or active filters when signal symmetry and PCB area are priorities. Its 24 MHz bandwidth is particularly useful for instrumentation and intermediate-frequency signal chains requiring higher slew rate than general-purpose amplifiers.
Place input and output decoupling capacitors close to their corresponding pins, route sensitive input traces away from switching nodes, and connect the exposed thermal pad to a solid ground or thermal plane. Confirm output-current limits, supply voltage, stability requirements, and operating temperature before finalizing the analog section.
This page combines the key electrical characteristics, application guidance, package considerations, and verified replacement information for engineers evaluating the MCP635-E/MF in compact dual-amplifier designs.
Alternativas drop-in para MCP635-E/MF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasMCP635-E/MF Classificações máximas e características elétricas
| Number of Channels | 2 channels |
| Product Type | Dual CMOS operational amplifier |
| Gain-Bandwidth Product | 24 MHz typical |
| Common-Mode Rejection Ratio | 63 dB minimum |
| Input Offset Voltage | 8 mV |
| Input Noise Voltage Density | 10 nV/√Hz typical at 1 MHz |
| Slew Rate | 10 V/µs typical |
| Tipo de saída | Rail-to-rail output |
| Operating Current | 85 mA |
| Short-Circuit Current | 70 mA typical |
| Maximum Supply Voltage | 5.5 V |
| Encapsulamento | 10-DFN, 3 x 3 mm |
| Tipo de montagem | Surface mount |
| Automotive Qualification | AEC-Q100 qualified |
| Packaging | Tube |
Guia de Configuração de Pinos do MCP635-E/MF 10-dfn, 3 x 3 mm
Configuração de pinos para MCP635-E/MF (pacote 10-dfn, 3 x 3 mm). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para MCP635-E/MF.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MCP635-E/MF é adequado para 6 aplicaçãos: Instrumentation Signal Conditioning, Sensor Interface Circuits, Active Filter and Equalization, Audio and Communications Buffering, Industrial Control and Data Acquisition, Portable and Battery-Powered Electronics.
Instrumentation Signal Conditioning
The MCP635-E/MF fits instrumentation front ends that condition sensor signals where bandwidth and common-mode rejection matter. Its dual channels can form a matched gain stage or an instrumentation-amplifier input section, while the 24 MHz typical gain-bandwidth provides margin above many low-frequency sensor bands. The 63 dB minimum common-mode rejection helps attenuate interference coupled into both inputs, and 10 nV/√Hz typical noise at 1 MHz supports low-level measurements. Designers should still calculate noise gain, maximum output swing, and the required input common-mode range for the actual bridge, transducer, and supply voltage.
Recomendado
Sensor Interface Circuits
The MCP635-E/MF is appropriate for buffering sensors whose output bandwidth falls within the amplifier’s 24 MHz typical gain-bandwidth. Rail-to-rail output operation provides useful output range in compact systems, while the 10 V/µs typical slew rate helps preserve large-amplitude or rapidly changing sensor waveforms. The two channels allow separate sensor and reference paths or a filter stage without using two packages. Because sensor interfaces can present high source impedance, the selected gain and feedback values must be checked against input bias current and noise, and sensitive input traces should remain short and shielded from switching circuitry.
Recomendado
Active Filter and Equalization
The MCP635-E/MF can support active low-pass, high-pass, or equalization networks because each channel delivers 24 MHz typical gain-bandwidth and 10 V/µs typical slew rate. A dual package enables second-order filter sections with matched components, reducing footprint compared with discrete single amplifiers. Stable operation still depends on the actual noise gain, feedback topology, load capacitance, and output loading. Use low-noise resistor and capacitor selections where signal integrity matters, keep the feedback loop compact, and verify AC performance with the final source and load rather than relying only on nominal gain-bandwidth figures.
Recomendado
Audio and Communications Buffering
The MCP635-E/MF suits moderate-bandwidth audio and communications buffering where dual channels and low noise are useful. The 10 nV/√Hz typical input noise at 1 MHz and 24 MHz typical gain-bandwidth support low-level signal handling, while the 10 V/µs slew rate provides ample capability for many audio-rate waveforms. Rail-to-rail output operation can increase usable signal range in low-voltage designs. Designers should establish the required output swing into the next stage, account for the 85 mA listed operating current, and keep output traces away from clocks, switching regulators, and other high-current return paths.
Recomendado
Industrial Control and Data Acquisition
The MCP635-E/MF can condition control and acquisition signals in industrial equipment where a compact dual amplifier and AEC-Q100 qualification are useful. The dual configuration supports simultaneous channel acquisition, differential interfaces, or active gain stages while conserving board area. Its 24 MHz typical bandwidth is more than adequate for many slow process-control and telemetry paths, while 63 dB minimum common-mode rejection improves immunity to shared-ground disturbances. Industrial deployments should still include input protection appropriate to the field wiring, verify transient levels beyond the amplifier’s 5.5 V maximum supply, and separate analog returns from high-current switching paths.
Recomendado
Portable and Battery-Powered Electronics
The MCP635-E/MF can fit portable instrumentation when two channels are needed in a small footprint and moderate bandwidth justifies the listed 85 mA operating current. The 10-DFN 3 x 3 mm package preserves board area, and rail-to-rail output operation supports low-voltage rails. Two channels can implement a matched front end, a gain-and-buffer chain, or an active filter section. Battery-powered designs should compare this operating current with lower-consumption amplifier options, confirm whether the 5.5 V maximum supply permits the intended operating range, and use the exposed pad to improve thermal performance without introducing ground-current noise into sensitive signal paths.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MCP635-E/MF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Package | 10-DFN, 3 x 3 mm |
| Brand | Microchip Technology |
| Number of Channels | 2 channels |
| Gain-Bandwidth Product | 24 MHz typical |
| Common-Mode Rejection Ratio | 63 dB minimum |
| Input Offset Voltage | 8 mV |
| Input Noise Density | 10 nV/√Hz typical at 1 MHz |
| Slew Rate | 10 V/µs typical |
| Operating Current | 85 mA |
| Maximum Supply Voltage | 5.5 V |
| Output Configuration | Rail-to-rail output |
| Automotive Qualification | AEC-Q100 qualified |
Principais diferenciais
- Combines two amplifier channels in a compact 10-DFN footprint (vs Single-amplifier alternatives)
- Provides substantial bandwidth for instrumentation and filtering (vs Low-bandwidth general-purpose dual op amps)
- Includes automotive qualification in the identified ordering code (vs Non-automotive dual amplifier options)
- Uses rail-to-rail output operation (vs Traditional non-rail-to-rail output amplifiers)
Notas de projeto
Place the input, output, and feedback components directly beside their associated MCP635-E/MF pins. Keep the feedback loop short to minimize parasitic capacitance and maintain the stability margin of the selected gain configuration. The 10-DFN footprint has no space for long connections around the exposed pad, so use short vias and a continuous ground or supply plane beneath the package while maintaining the manufacturer’s recommended copper geometry.
Route each input pair as a tightly coupled differential or pair of parallel traces, and keep sensitive amplifier inputs away from switching nodes, inductors, relay contacts, and high-current return paths. The exposed pad connection and internal ground currents should be planned to avoid sharing a noisy path with the input reference. Grounding the pad through multiple nearby vias improves thermal conduction, but those vias must not disrupt the recommended thermal and electrical layout.
Estimated: at a 5.5 V supply and 85 mA operating current, device dissipation is 0.4675 W. Actual dissipation changes with supply voltage, operating state, load, and ambient temperature. Provide adequate exposed-pad copper and verify junction temperature under the worst operating condition; do not assume that the small DFN outline alone guarantees adequate thermal performance in an enclosure with limited airflow.
Do not treat similar rail-to-rail amplifier specifications as proof of drop-in compatibility. Verify the exact MCP635-E/MF suffix for tube packaging, 10-DFN dimensions, exposed-pad net, channel pinout, temperature grade, and AEC-Q100 status. Also check the actual input common-mode range and output-swing limits at the intended supply voltage; rail-to-rail output wording alone does not guarantee unrestricted input common-mode operation.
Informações de conformidade
The MCP635-E/MF is identified as AEC-Q100 qualified. Other compliance statuses require confirmation from the manufacturer’s current product documentation.
