MCP608-I/ST - 2.5V 25uA CMOS Op Amp | Microchip Technology
MPN: MCP608-I/ST ✓ সক্রিয়MCP608-I/ST সারাংশ
An operational amplifier, or op amp, is a voltage-feedback amplifier that provides gain, filtering, buffering, and level shifting within analog signal paths. The MCP608 belongs to the micropower CMOS operational-amplifier family within the broader category of analog amplifier ICs. Its low supply current and low-noise characteristics allow longer battery life and cleaner measurement results in portable equipment.
Key features include unity-gain stability, a 155 kHz gain-bandwidth product, rail-to-rail output swing, and a chip-select function that can disable the amplifier. The manufacturer specifies less than 25 uA typical operating current, while a typical value of 18.7 uA is identified in the product documentation. Input offset voltage is below 250 uV, and input voltage-noise density is 38 nV/sqrt(Hz). These characteristics support accurate amplification without requiring a high-speed, high-power amplifier.
The MCP608 uses Microchip CMOS technology with low bias current, high open-loop gain, and rail-to-rail output capability. Because it is unity-gain stable, it can operate directly as a voltage follower when no closed-loop gain is required. Its micropower operation and low-noise input stage are particularly valuable when the source impedance is high, although the datasheet should be consulted for complete input-bias-current, output-swing, and stability limits across temperature and supply voltage.
Typical uses include battery-powered sensor interfaces, low-current data acquisition, portable medical instrumentation, low-leakage measurement circuits, and general-purpose analog signal conditioning. In these systems, the chip-select pin can disable the amplifier when it is not needed, reducing system power consumption. The 8-TSSOP package also supports compact surface-mount assemblies where adequate board area and thermal relief are available.
Designers should verify the input common-mode range, output swing, capacitive-load behavior, and shutdown-state characteristics against the manufacturer datasheet for the intended supply voltage and operating temperature. Stable operation also depends on correct feedback placement, suitable source impedance, and careful routing that minimizes parasitic capacitance near the high-impedance input node.
This page summarizes the manufacturer specifications, practical application guidance, verified package information, and drop-in replacement constraints for engineers evaluating the MCP608-I/ST. It also identifies where design parameters require confirmation from the complete MCP608 documentation before production release.
এর জন্য ড্রপ-ইন বিকল্প MCP608-I/ST — একই package, pin-to-pin compatible। ভিন্ন package-এর যেসব পার্টে PCB rework প্রয়োজন সেগুলো বাদ দেওয়া হয়েছে।
MCP608T-I/ST
✅ ড্রপ-ইন📋 রেফারেন্স বিকল্প (ক্যাটালগে নেই)
MCP608-I/ST সর্বোচ্চ রেটিং ও বৈদ্যুতিক বৈশিষ্ট্য
| Product Type | Single operational amplifier |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Typical Quiescent Current | 18.7 uA |
| Maximum Quiescent Current | 25 uA |
| Gain-Bandwidth Product | 155 kHz |
| Input Offset Voltage | Less than 250 uV |
| Maximum Input Offset Voltage | 250 uV |
| Maximum Input Bias Current | 80 pA at 85 C |
| Input Voltage Noise Density | 38 nV/sqrt(Hz) |
| Output Swing | Rail-to-rail |
| Gain Stability | Unity-gain stable |
| Chip Select | Yes |
| Process Technology | CMOS |
| Number of Circuits | 1 circuit |
| প্যাকেজ | 8-TSSOP |
| মাউন্টিং টাইপ | Surface mount |
MCP608-I/ST 8-tssop পিন কনফিগারেশন গাইড
MCP608-I/ST (8-tssop প্যাকেজ)-এর পিন কনফিগারেশন। এই অ্যানালগ কম্পোনেন্টে ইনপুট, আউটপুট ও পাওয়ার সাপ্লাই পিন রয়েছে। অফসেট নাল, কম্পেনসেশন ও এনেবল পিন কনফিগারেশনের জন্য প্রস্তুতকারকের ডেটাশিট দেখুন। সিগন্যাল কন্ডিশনিং ও অ্যামপ্লিফায়ার সার্কিটের জন্য আদর্শ।
এর জন্য বিস্তারিত পিনআউট ডেটা পাওয়া যায়নি MCP608-I/ST.
দেখুন ডেটাশিট সম্পূর্ণ পিন কনফিগারেশনের জন্য।
সাধারণ ব্যবহার
MCP608-I/ST এর জন্য উপযুক্ত 6 অ্যাপ্লিকেশনs: Battery-Powered Sensor Buffering, Portable Medical Signal Conditioning, Low-Power Data Acquisition, Low-Leakage Measurement Systems, Battery-Powered Industrial Monitoring, Low-Voltage Analog Signal Conditioning.
Battery-Powered Sensor Buffering
The MCP608-I/ST is appropriate for buffering high-impedance sensor outputs in portable or battery-powered equipment. Its 38 nV/sqrt(Hz) input voltage-noise density and input bias current rated at 80 pA maximum at 85 C help reduce errors when the source impedance is high. With a 155 kHz gain-bandwidth product, it handles low-frequency sensor signals rather than wideband waveforms. The amplifier can be configured for voltage-follower operation because it is unity-gain stable. Its less-than-25-uA typical operating current and 2.5 V minimum supply support low-energy designs, while chip select allows the amplifier to be disabled during inactive measurement intervals.
সুপারিশকৃত
Portable Medical Signal Conditioning
The MCP608-I/ST can condition low-level physiological or diagnostic sensor signals where power consumption and input bias current are important. Its input offset voltage below 250 uV, 38 nV/sqrt(Hz) input noise density, and maximum input bias current of 80 pA at 85 C support accurate amplification of high-source-impedance nodes. The 155 kHz gain-bandwidth product is appropriate for physiological signals and other low-bandwidth measurements. A 2.5 V to 6.0 V operating range also fits compact portable systems. Medical designs must additionally verify leakage, patient protection, isolation, and applicable regulatory requirements beyond the component specifications.
সুপারিশকৃত
Low-Power Data Acquisition
The MCP608-I/ST is useful in compact data-acquisition systems that multiplex or repeatedly sample low-frequency analog inputs. A 155 kHz gain-bandwidth product supports amplification and filtering stages for many sensor-bandwidth signals, while the less-than-25-uA typical operating current helps constrain acquisition-channel power. Rail-to-rail output swing provides useful output range on a 2.5 V to 6.0 V supply. Chip select can disable the amplifier when a channel is inactive, reducing aggregate system consumption. The complete design should account for sampling rate, settling time, source impedance, and the datasheet's capacitive-load limitations.
সুপারিশকৃত
Low-Leakage Measurement Systems
The MCP608-I/ST fits measurement circuits in which amplifier input current could disturb the result. The documented maximum input bias current of 80 pA at 85 C is especially relevant to high-impedance probes, leakage-sensitive dividers, and electrochemical or capacitive sensing nodes. Its 155 kHz gain-bandwidth product is sufficient for many precision DC and low-frequency measurements, and unity-gain stability supports direct buffering. The CMOS implementation also operates from 2.5 V to 6.0 V. For laboratory and metrology equipment, verify input leakage, offset drift, common-mode behavior, and temperature limits in the full manufacturer documentation.
সুপারিশকৃত
Battery-Powered Industrial Monitoring
The MCP608-I/ST can support battery-powered industrial monitoring nodes that combine a low-power sensor with local analog conditioning. The 2.5 V minimum operating voltage fits low-energy sensor systems, while less than 25 uA typical operating current limits the amplifier's contribution to standby consumption. Rail-to-rail output swing increases usable signal range, and the 155 kHz gain-bandwidth product suits temperature, pressure, position, and environmental sensing rather than high-speed communications. The chip-select feature is useful for scheduled measurement or duty-cycled operation. Field designs should also verify EMI behavior, temperature range, moisture protection, and long-term supply availability.
সুপারিশকৃত
Low-Voltage Analog Signal Conditioning
The MCP608-I/ST is well suited to general 2.5 V to 6.0 V analog signal-conditioning blocks requiring amplification, level shifting, filtering, or buffering. Its rail-to-rail output and low offset voltage below 250 uV help retain signal margin in low-voltage systems, while unity-gain stability allows direct follower configurations. The 155 kHz gain-bandwidth product is adequate for slow control, sensing, and instrumentation signals. Designers should select feedback resistors and capacitors against the closed-loop gain and bandwidth, then confirm output settling and capacitive-load behavior from the manufacturer datasheet. Stable layout should keep the input node short and protect it from moisture or contamination.
সুপারিশকৃত
সুপারিশকৃত পণ্যের সারসংক্ষেপ
এর জন্য ইঞ্জিনিয়ারিং রেফারেন্স ডেটা MCP608-I/ST — তুলনা, ডিজাইন গাইডেন্স এবং কমপ্লায়েন্স তথ্য।
নির্বাচন গাইড
বিকল্পের সাথে তুলনা
| পারামিটার | এই পণ্য | MCP608T-I/ST |
|---|---|---|
| Package | 8-TSSOP | 8-TSSOP |
| Brand | Microchip Technology | Microchip Technology |
| Number of Amplifiers | 1 | 1 |
| Supply Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V |
| Typical Quiescent Current | 18.7 uA | 18.7 uA |
| Maximum Quiescent Current | 25 uA | 25 uA |
| Gain-Bandwidth Product | 155 kHz | 155 kHz |
| Input Offset Voltage | Less than 250 uV | Less than 250 uV |
| Input Voltage Noise Density | 38 nV/sqrt(Hz) | 38 nV/sqrt(Hz) |
| Chip-Select Threshold | Standard MCP608 threshold | Different MCP608T threshold |
মূল পার্থক্যসমূহ
- Standard MCP608 chip-select behavior (বনামMCP608T-I/ST)
- Low-power operation from a 2.5 V supply (বনামMCP608T-I/ST)
- Low-noise input stage for portable systems (বনামMCP608T-I/ST)
ডিজাইন নোট
Estimated: with a 3.3 V supply and a 500 uA load, the ideal load-related dissipation is approximately 1.65 mW using P = (VIN - VOUT) x IOUT. Actual device dissipation also includes bias current and internal losses. Keep the supply within 2.5 V to 6.0 V, account for chip-select state, and avoid sustained operation near the output rails when thermal margin is limited.
Place the input, output, feedback, and decoupling connections according to the manufacturer layout guidance. Keep the non-inverting input and feedback traces short because parasitic capacitance can affect stability and settling. Connect the supply bypass capacitor close to the device power pins, provide an uninterrupted ground return, and use the exposed package drawing to confirm land pattern and paste geometry before fabrication.
Do not treat the rail-to-rail output specification as permission to exceed the output common-mode range at the inputs. Input offset voltage is specified below 250 uV, and input bias current can reach 80 pA at 85 C, but neither value guarantees accuracy with a low-impedance source or high source impedance. Confirm temperature grade, output swing, input range, and chip-select logic using the exact MCP608 ordering code.
কমপ্লায়েন্স তথ্য
The MCP608 is an industrial operational-amplifier product, but no explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement was included in the manufacturer product-page extract. Confirm current declarations with Microchip before procurement.
