MCP617-I/MS - Dual 190kHz Micropower Op Amp | Microchip
MPN: MCP617-I/MS ✓ פעילMCP617-I/MS סקירה
An operational amplifier, or op amp, is an analog signal-conditioning IC that uses differential feedback to amplify the voltage difference between its two inputs. Operational amplifiers belong to the broader amplifier IC and semiconductor hierarchy and are commonly used as voltage buffers, transimpedance amplifiers, comparators, filters, and gain stages. Their high open-loop gain becomes accurate closed-loop gain when a negative-feedback network determines the gain and bandwidth.
The MCP617-I/MS combines micropower operation with useful precision and bandwidth. Its 190 kHz gain-bandwidth product supports low-frequency signal conditioning, while the rail-to-rail output stage increases usable output range on low-voltage supplies. Maximum input offset voltage of ±150 µV is suitable for battery-powered sensor and instrumentation circuits, and the 19 µA typical operating current helps limit energy consumption. The 2.3 V to 5.5 V supply range accommodates cells, regulated rails, and low-voltage embedded systems.
The MCP617 uses Microchip's CMOS technology and provides low bias current, high open-loop gain, high-speed operation, and rail-to-rail output swing. Its low-noise figure of 2.2 µV peak-to-peak from 10 Hz, together with 0.08 V/µs slew rate, makes it appropriate for filtering, buffering, and gain stages that do not require the bandwidth of a high-speed amplifier. Unity-gain stability simplifies follower and general-purpose closed-loop designs.
Typical uses include battery-powered sensor interfaces, portable biomedical instrumentation, low-voltage data-acquisition front ends, active filters, and embedded control systems. The dual configuration saves board area when two independent analog channels are required. It can also implement differential, summing, and transimpedance stages, subject to the feedback network, output loading, supply voltage, and stability requirements for the selected gain.
The primary design trade-off is bandwidth versus power: 190 kHz gain-bandwidth product and 19 µA typical operating current are appropriate for precision micropower applications, not high-speed signal chains. Use the manufacturer pin-description table when assigning tracks, place bypass capacitors near the supply pins, and verify output swing, load capability, input common-mode range, and stability with the intended feedback network.
This page combines the key electrical characteristics, packaging information, practical application guidance, and drop-in replacement analysis into one engineering-focused reference. It also distinguishes the MSOP ordering option from alternatives that require a different footprint, helping designers avoid package-level redesign and unexpected board incompatibility.
חלופות תחליף ישיר עבור MCP617-I/MS — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MCP617-I/MS (אותו גורם צורה וטביעת רגל) — שונים ב Amplifier Type, Input Offset Voltage, Number of Circuits, Package, Slew Rate.
MCP617T-I/MS
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
MCP617-I/MS דירוגים מרביים ומאפיינים חשמליים
| Amplifier Type | General-purpose operational amplifier |
| Number of Circuits | 2 circuits |
| Gain-Bandwidth Product | 190 kHz |
| Typical Operating Current | 19 µA |
| Input Offset Voltage | ±150 µV maximum |
| Input Offset Current | 0.3 nA typical |
| Input Noise Voltage | 2.2 µV peak-to-peak typical from 10 Hz |
| Slew Rate | 0.08 V/µs |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Output Swing | Rail-to-rail |
| Gain Stability | Unity-gain stable |
| טווח טמפרטורת פעולה | -40 °C to +85 °C |
| מארז | 8-MSOP, 3.00 mm width |
| סוג הרכבה | Surface mount |
| Supply Type | Single supply |
תצורת פינים של MCP617-I/MS
| פין 1 | OUTA — Amplifier A output |
| פין 2 | IN A- — Inverting input of amplifier A |
| פין 3 | IN A+ — Noninverting input of amplifier A |
| פין 4 | V- — Negative supply or ground connection |
| פין 5 | IN B+ — Noninverting input of amplifier B |
| פין 6 | IN B- — Inverting input of amplifier B |
| פין 7 | OUTB — Amplifier B output |
| פין 8 | V+ — Positive supply input |
יישומים טיפוסיים
MCP617-I/MS מתאים עבור 6 יישוםs: Battery-Powered Sensor Signal Conditioning, Portable Medical Instrumentation, Low-Voltage Data Acquisition, Active Filters and Audio Control Loops, Battery Monitor and Threshold Conditioning, Portable Industrial Control Module.
Battery-Powered Sensor Signal Conditioning
The MCP617-I/MS fits battery-powered sensor front ends because it operates from 2.3 V to 5.5 V with only 19 µA typical operating current. A 190 kHz gain-bandwidth product provides useful closed-loop bandwidth for low-frequency sensors, while ±150 µV maximum input offset voltage helps preserve small-signal accuracy. Its rail-to-rail output increases the usable signal range in compact systems. Design the sensor, protection network, and amplifier for the intended sensor impedance, and verify input bias-current error because the typical input offset current is 0.3 nA.
מומלץ
Portable Medical Instrumentation
The MCP617-I/MS is appropriate for portable medical-instrument signal paths that require low supply current and accurate low-frequency amplification. Its 19 µA typical operating current supports battery operation, while the 190 kHz gain-bandwidth product is suitable for ECG, pressure, or biochemical-sensor conditioning stages operating well below megahertz rates. The ±150 µV maximum input offset voltage and 2.2 µV peak-to-peak typical noise from 10 Hz help reduce errors in small sensor signals. Medical-system validation must also address patient protection, isolation, electrode protection, and applicable regulatory requirements.
מומלץ
Low-Voltage Data Acquisition
The MCP617-I/MS can condition multiple low-voltage sensor channels in a compact data-acquisition front end. Two independent amplifiers share one 8-MSOP package, reducing board area, and the 190 kHz gain-bandwidth product supports filtering and gain stages with moderate bandwidth requirements. Operation from 2.3 V to 5.5 V permits direct interfacing with low-voltage sensors and digital systems. Rail-to-rail output helps maximize signal span, but engineers should account for input common-mode limits, output settling, ADC acquisition timing, and the effect of finite gain-bandwidth product on measurement accuracy.
מומלץ
Active Filters and Audio Control Loops
The MCP617-I/MS is suitable for low-frequency active filters, gain controls, and feedback loops requiring low power and modest bandwidth. Its unity-gain stability simplifies voltage-follower implementations, and the 0.08 V/µs slew rate supports small-signal control applications. Rail-to-rail output operation can improve dynamic range in battery-powered audio-control circuits. Stable filter operation still depends on the exact noise gain, source impedance, load, and capacitor selection, so simulation and stability testing should be completed with the actual source and load impedances.
מומלץ
Battery Monitor and Threshold Conditioning
The MCP617-I/MS can amplify battery or rail-monitoring signals in portable equipment before comparison or conversion. Its low 19 µA typical operating current minimizes the load imposed on the monitored supply, and the 2.3 V minimum operating voltage supports cells near their useful discharge range. The 190 kHz gain-bandwidth product is more than sufficient for slow battery-voltage changes, while rail-to-rail output improves utilization of a low-voltage signal path. Account for the actual battery chemistry, input current draw, tolerance of the divider, and any shutdown current before calculating standby power.
מומלץ
Portable Industrial Control Module
The MCP617-I/MS suits compact industrial-control modules where two low-frequency analog channels must be conditioned within a limited power and board-space budget. The 8-MSOP package combines two amplifiers, the 2.3 V to 5.5 V supply range supports embedded rails, and the -40 °C to +85 °C standard operating range covers many commercial and industrial environments. For systems exposed to wider temperature extremes, confirm an extended-temperature ordering option. The design should also include input protection, supply-noise filtering, output-load analysis, and validation of logic thresholds during startup and shutdown.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MCP617-I/MS — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MCP617T-I/MS |
|---|---|---|
| Package | 8-MSOP | 8-MSOP |
| Brand | Microchip Technology | Microchip Technology |
| Number of Amplifiers | 2 circuits | 2 circuits |
| Gain-Bandwidth Product | 190 kHz | 190 kHz |
| Typical Operating Current | 19 µA | 19 µA |
| Supply Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Maximum Input Offset Voltage | ±150 µV | ±150 µV |
| Slew Rate | 0.08 V/µs | 0.08 V/µs |
| Output Swing | Rail-to-rail | Rail-to-rail |
| Gain Stability | Unity-gain stable | Unity-gain stable |
מבדילים עיקריים
- Combines two low-power amplifier channels in one compact package (לעומתMCP616)
- Supports low-voltage precision signal conditioning (לעומתMCP617T-I/MS)
- Maintains useful bandwidth at micropower current levels (לעומתAD8552ARZ)
הערות תכנון
Place the supply bypass capacitor close to the V+ and V- pins, and route the power and ground connections with low loop area. The MCP617 family datasheet emphasizes decoupling and clean layout for stable low-noise operation. Keep sensitive input nodes away from switching supplies and high-current return paths. Because the device is intended for single-supply use, connect V- to ground in the standard configuration and confirm that any negative rail is supported by the selected operating conditions.
Do not interpret rail-to-rail output as unlimited output-current capability or guaranteed full-range input common-mode operation. Check the manufacturer electrical-characteristics tables for output swing versus load and input range versus supply voltage. The 190 kHz gain-bandwidth product also reduces closed-loop bandwidth as noise gain rises, so use the actual feedback network in stability and settling calculations.
For very-low-frequency or precision sensor measurements, evaluate resistor noise, input bias-current error, and leakage around the high-impedance input nodes. The typical input offset current is 0.3 nA, so source impedance can create an input-voltage error proportional to that current. Shield sensitive traces, use guarding where appropriate, and keep input leakage-producing components away from the amplifier inputs.
Budget the MCP617-I/MS supply current from both its 19 µA typical operating current and the external load driven by its outputs. Low quiescent current does not eliminate output-current consumption, and a source impedance can also require additional input-bias-current compensation. Confirm the operating-current maximum and output-load capability for the worst supply voltage and temperature when sizing a battery-powered design.
מידע על תאימות
The MCP617-I/MS operating range is -40 °C to +85 °C. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status were not stated in the manufacturer information used for this product record.
