MCP603-E/SN - 2.8 MHz R-R Op Amp | Microchip Technology
Référence : MCP603-E/SN ✓ ActifMCP603-E/SN Présentation
An operational amplifier, or op amp, is a high-gain analog building block that compares two input voltages and amplifies their difference. The MCP603 belongs to the CMOS operational-amplifier hierarchy, which sits within analog integrated circuits and general-purpose signal-conditioning components. Rail-to-rail output capability allows the output to approach the supply rails more closely than a conventional amplifier, making the device useful in portable, industrial, instrumentation, and embedded systems.
Key features include low input bias current, high open-loop gain, a 2.8 MHz gain-bandwidth product, a 2.3 V/us slew rate, and operation from a 2.7 V minimum supply. The MCP603-E/SN also includes a chip-select function for placing the amplifier in a low-power state when it is not needed. A typical operating current of 230 uA and an input offset voltage below 2 mV support efficient, low-voltage signal-chain designs.
The MCP603 uses Microchip's advanced CMOS technology to provide low power consumption while preserving useful small-signal bandwidth. Its single-amplifier configuration minimizes board area, while the SOIC-8 package supports conventional leaded-board assembly and hand rework. Engineers can use the chip-select pin to reduce system activity during idle intervals or to manage multiple analog channels through shared control logic.
Typical applications include low-level sensor conditioning, portable instrumentation, battery-powered measurement systems, industrial control interfaces, and general embedded analog signal processing. The device is particularly suitable when low voltage, low quiescent current, rail-to-rail output swing, and moderate bandwidth are more important than very high slew rate or very low offset.
When designing a circuit around the MCP603-E/SN, verify input and output common-mode limits at the selected supply voltage. Keep feedback components close to the amplifier pins, provide suitable bypassing, and use the chip-select control only when its timing and shutdown behavior match the system power sequence. The 8-pin SOIC footprint is suitable for leaded PCB layouts.
This page combines the manufacturer's operating characteristics with package details, sourcing guidance, replacement analysis, and practical circuit-design notes. It is intended to help engineers identify whether the MCP603-E/SN fits a low-voltage, low-power analog application before committing the 8-pin SOIC footprint to a design.
Alternatives de remplacement direct pour MCP603-E/SN — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MCP603-E/SN (même facteur de forme et même empreinte) — différant par Gain-Bandwidth Product, Package, Input Offset Voltage, Lead-Free Status, Quiescent Current.
MCP601-E/SN
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →MCP602-E/SN
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →MCP604-E/SN
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MCP606-E/SN
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MCP608-I/SN
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →MCP603-E/SN Valeurs maximales et caractéristiques électriques
| Amplifier Type | General Purpose |
| Number of Circuits | 1 circuit |
| Supply Voltage Range | 2.7 V to 6.0 V |
| Gain-Bandwidth Product | 2.8 MHz |
| Slew Rate | 2.3 V/us |
| Courant de repos | Less than 325 uA |
| Typical Operating Current | 230 uA |
| Input Offset Voltage | Less than 2 mV |
| Output Swing | Rail-to-rail |
| Chip Select | Yes |
| Boîtier | 8-SOIC, 0.154 in (3.90 mm) width |
| Type de montage | Surface Mount |
Guide de configuration des broches du MCP603-E/SN 8-soic, 0.154 in (3.90 mm) width
Configuration des broches du MCP603-E/SN (boîtier 8-soic, 0.154 in (3.90 mm) width). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour MCP603-E/SN.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCP603-E/SN convient pour 6 applications: Portable Sensor Signal Conditioning, Battery-Powered Measurement Systems, Industrial Process Signal Interface, Embedded Data-Acquisition Front End, Audio and Communication Interface Buffering, Low-Power Control and Monitoring.
Portable Sensor Signal Conditioning
The MCP603-E/SN fits low-voltage sensor front ends because it operates from 2.7 V to 6.0 V, offers rail-to-rail output swing, and draws a typical 230 uA. It can amplify a sensor output before conversion by an ADC or support a modest gain stage around a bridge, thermistor, or potentiometer. The 2.8 MHz gain-bandwidth product handles moderate-bandwidth signals, while the 2.3 V/us slew rate limits how quickly large output steps can settle. Check the sensor output against the amplifier's common-mode range and account for input bias current when using high-impedance sources.
Recommandé
Battery-Powered Measurement Systems
The MCP603-E/SN is appropriate for battery-operated instrumentation where supply voltage and standby consumption are important. Its low 2.7 V operating limit supports 3.3 V systems, and its typical operating current of 230 uA plus chip-select control can help reduce active-system consumption. The rail-to-rail output increases usable signal range in low-voltage designs. Designers should still account for output-swing limits under load, input offset, and leakage through connected sensors when calculating battery life, and should use the chip-select pin only where its shutdown timing is compatible with the measurement cycle.
Recommandé
Industrial Process Signal Interface
The MCP603-E/SN can provide the first gain or buffering stage for low-level industrial process signals when the required bandwidth remains within 2.8 MHz and the signal slew rate remains below 2.3 V/us. Its single-supply 2.7 V to 6.0 V range simplifies systems using 3.3 V or 5 V rails, while rail-to-rail output improves utilization of the available signal range. Use input protection for external wiring, establish a defined reference for bipolar signals, and verify the common-mode range before the amplifier is exposed to sensor excursions. Galvanic isolation, if required, must be implemented separately.
Recommandé
Embedded Data-Acquisition Front End
The MCP603-E/SN is useful as a gain and drive stage between a low-level transducer and a data-converter input. Its 2.8 MHz gain-bandwidth product supports moderate-bandwidth acquisition, and the single-amplifier SOIC-8 package leaves board area for additional circuitry. Use a low-noise reference and suitable feedback resistors to establish gain, then compare the amplifier's output capability with the ADC input range. Sampling-system designers should also verify settling time, capacitive loading, and whether input filtering or an isolation resistor is required to control high-frequency peaks.
Recommandé
Audio and Communication Interface Buffering
The MCP603-E/SN can serve as a general-purpose gain or buffer stage in low-level audio and communications circuitry when the signal bandwidth and output drive requirements remain modest. Its 2.8 MHz gain-bandwidth product and rail-to-rail output suit low-frequency voice, control, or baseband signals, while the 2.3 V/us slew rate helps preserve waveform shape on moderate transitions. Check capacitive loads and output-current requirements carefully, keep feedback routing compact, and separate sensitive input nodes from chip-select and supply-return currents to avoid introducing additional noise into the signal path.
Recommandé
Low-Power Control and Monitoring
The MCP603-E/SN supports low-power control loops that compare a feedback signal with a reference and drive a modest external load. Chip select can disable the amplifier when it is not needed, while the 2.7 V minimum supply and typical 230 uA operating current suit compact embedded systems. Select feedback values that keep the closed-loop bandwidth below the available 2.8 MHz and include an output isolation or feedback resistor if capacitive loading could create instability. The component is better suited to control and monitoring than to driving long lines or high-current outputs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCP603-E/SN — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCP601-E/SN | MCP602-E/SN | MCP604-E/SN | MCP606-E/SN | MCP608-I/SN |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Number of Circuits | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit |
Principaux différenciateurs
- Combines chip-select control with low-power operation (vs MCP604-E/SN)
- Provides 2.8 MHz bandwidth in an 8-SOIC footprint (vs MCP606-E/SN)
- Uses rail-to-rail output for low-voltage signal range (vs MCP601-E/SN)
Notes de conception
Route the two amplifier inputs, feedback components, and output as a compact analog section. Place the input and output resistors close to their associated pins, maintain a continuous ground reference beneath the analog path, and keep the chip-select trace away from high-impedance input nodes. Because the MCP603-E/SN uses a single-supply architecture, connect unused inputs to a defined potential rather than allowing them to float.
Add local supply bypassing near the 8-SOIC device and use the capacitor configuration specified by the manufacturer for stable operation. Keep the ground return short and avoid sharing narrow paths between the amplifier output and digital control currents. The device's less-than-325-uA quiescent-current capability is useful for low-power systems, but total supply demand also depends on output current, feedback-network impedance, and the load connected to the output.
Do not assume that rail-to-rail output automatically means rail-to-rail input operation. Confirm the MCP603 input common-mode range at the chosen supply voltage and calculate the maximum output excursion before choosing the gain stage. Also check capacitive loading, because a long cable or large filter capacitor can interact with the amplifier's output and feedback network. Validate chip-select timing if the amplifier must wake before an ADC samples the output.
Informations de conformité
The available manufacturer and distributor information does not explicitly state the compliance fields for this ordering code. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-mineral declarations before qualification.
