MCP607T-I/ST - Dual 25µA CMOS Op Amp, Rail-to-Rail, 8-TSSOP | Microchip
料号： MCP607T-I/ST ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 10 | $0.55 | $5.50 |
| 100 | $0.42 | $42.00 |
| 500 | $0.36 | $180.00 |
| 1,000 | $0.31 | $310.00 |
MCP607T-I/ST 概述
A CMOS operational amplifier (op amp) is a high-gain DC-coupled electronic voltage amplifier whose input stage uses complementary metal-oxide-semiconductor transistors rather than bipolar junction transistors. CMOS op amps offer extremely high input impedance, very low input bias current, and the ability to operate from low supply voltages - qualities that distinguish them from legacy bipolar op amps in battery-powered and high-impedance sensor applications. Within the broader taxonomy, the MCP607 belongs to the micropower op amp category (quiescent current typically below 100 µA per channel), itself a sub-family of general-purpose operational amplifiers in the linear IC product hierarchy.
Key specifications include 250 µV maximum input offset voltage, 1 pA typical input bias current, 110 dB open-loop gain (typical), and rail-to-rail output swing to within a few millivolts of either rail at moderate loads. The CMOS input structure supports input signals that include the negative supply rail (single-supply ground-referenced sensing), while the GBW of 155 kHz comfortably handles audio-bandwidth, transducer conditioning, and slow analog front-end tasks.
The MCP607 uses Microchip's advanced CMOS process that pairs low bias current with rail-to-rail output swing and moderate speed. The architecture targets applications where every microampere of quiescent current matters - portable instruments, sensor-conditioning networks, and battery-backed detection circuits - while still providing sufficient bandwidth for active filters and audio pre-amplification.
Typical applications include battery-powered sensor signal conditioning, microphone pre-amplifiers, photodiode transimpedance front-ends, active filters in portable medical and instrumentation equipment, A/D converter input buffers, and general-purpose single-supply amplification where ground-referenced signals must be handled directly.
When designing with the MCP607, ensure the output load current does not exceed the device's drive capability near the rails - heavy loads reduce output swing to within tens of millivolts of the supply. Place a 0.1 µF decoupling capacitor close to the supply pin and add a bulk capacitor if the op amp drives dynamic loads.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design considerations not found in the manufacturer datasheet alone - giving engineers a single reference for sourcing, replacement, and circuit integration decisions.
直接替换替代料： MCP607T-I/ST ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
MCP607T-E/ST
✅ 直接替换📋 参考替代料（不在目录中）
MCP607T-I/SN
✅ 直接替换📋 参考替代料（不在目录中）
MCP617T-I/ST
✅ 直接替换📋 参考替代料（不在目录中）
MCP604T-I/ST
✅ 直接替换📋 参考替代料（不在目录中）
MCP6002T-I/ST
✅ 直接替换📋 参考替代料（不在目录中）
MCP6022T-I/ST
✅ 直接替换📋 参考替代料（不在目录中）
MCP607T-I/ST 最大额定值与电气特性
| Manufacturer | Microchip Technology |
| Part Family | MCP607 |
| Amplifier Type | CMOS Operational Amplifier |
| Number of Channels | 2 (Dual) |
| Gain Bandwidth Product (GBW) | 155 kHz (typical) |
| Supply Current (per channel, typical) | 18.7 µA |
| Supply Current (per channel, max) | 25 µA |
| Supply Voltage Range (Single) | 2.5 V to 6.0 V |
| Input Offset Voltage (max) | 250 µV |
| Input Bias Current (typical) | 1 pA |
| Open-Loop Gain (typical) | 110 dB |
| 输出类型 | Rail-to-Rail |
| Input Common-Mode Range | Includes negative rail (ground-sensing) |
| 工作温度范围 | -40 °C to +85 °C (Industrial) |
| 封装 | 8-TSSOP (ST) |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 (per Microchip product page) |
| RoHS 状态 | Compliant |
MCP607T-I/ST 引脚配置
| 引脚 1 | OUTA — Channel A output |
| 引脚 2 | INA- — Channel A inverting input |
| 引脚 3 | INA+ — Channel A non-inverting input |
| 引脚 4 | VSS — Negative supply (ground) |
| 引脚 5 | INB+ — Channel B non-inverting input |
| 引脚 6 | INB- — Channel B inverting input |
| 引脚 7 | OUTB — Channel B output |
| 引脚 8 | VDD — Positive supply |
典型应用
MCP607T-I/ST 适用于 7 应用s: Battery-Powered Sensor Signal Conditioning, Photodiode Transimpedance Amplifier Front-End, Portable Medical Instrumentation Amplifier, Active Filter Circuits in Audio Bandwidth, A/D Converter Input Buffer and Signal Scaling, Industrial IoT Sensor Node Analog Front-End, Microphone Preamplifier for Voice-Input Devices.
Battery-Powered Sensor Signal Conditioning
The MCP607T-I/ST's 18.7 µA typical quiescent current per channel and 2.5 V to 6.0 V single-supply range make it ideal for conditioning signals from low-power sensors in battery-backed designs. Its 1 pA typical input bias current and 250 µV max input offset allow direct connection to high-impedance sources such as piezoelectric sensors, thermistor bridges, and pH probes without bias-current-induced errors. The CMOS input stage draws negligible current from the sensor, preserving measurement accuracy over long battery lifetimes while the rail-to-rail output maximizes dynamic range from a low-voltage supply.
推荐
Photodiode Transimpedance Amplifier Front-End
The MCP607T-I/ST's CMOS input stage with 1 pA typical bias current provides the ultra-low input leakage required for transimpedance amplification of weak photodiode currents in optical sensing modules. Its 155 kHz GBW is sufficient for pulse-oximetry, smoke-detector photo-chambers, and ambient light sensors where the modulation bandwidth rarely exceeds a few kilohertz. Rail-to-rail output swing allows direct ADC drive without an intermediate gain stage, while 18.7 µA quiescent current preserves battery life in portable light-meter and pulse-oximeter designs. Ground-sensing input supports photodiode cathode-at-VDD topologies directly.
推荐
Portable Medical Instrumentation Amplifier
The MCP607T-I/ST's micropower consumption and CMOS low-bias inputs suit it for ECG pre-amplifiers, blood-pressure monitor signal paths, and body-worn biosensor front-ends where both low current draw and high input impedance are mandatory. Its 110 dB typical open-loop gain ensures high common-mode rejection in differential configurations, while the rail-to-rail output drives subsequent ADC or instrumentation amp stages directly from 3.3 V rails. With -40 °C to +85 °C industrial temperature range, the part withstands the thermal profile of body-worn and point-of-care medical devices. Quiescent current is low enough to support weeks of continuous monitoring from a small lithium cell.
推荐
Active Filter Circuits in Audio Bandwidth
The MCP607T-I/ST delivers 155 kHz GBW with rail-to-rail output, supporting Sallen-Key and multiple-feedback active filter topologies below ~30 kHz closed-loop bandwidth. Designers use it for anti-aliasing filters preceding ADCs, audio-band equalization, and tone-control circuits in portable speakers and intercoms. The 18.7 µA quiescent current keeps battery drain negligible even when several op amps are deployed in cascaded filter sections, while 110 dB open-loop gain preserves filter Q accuracy. The CMOS input does not load high-impedance filter components, preserving designed cutoff frequencies and component tolerances.
推荐
A/D Converter Input Buffer and Signal Scaling
The MCP607T-I/ST serves as an input buffer and gain stage for SAR and delta-sigma ADCs in low-power data-acquisition systems. Its 155 kHz GBW and rail-to-rail output drive ADC inputs without distortion, while the low 1 pA input bias current minimizes loading on high-impedance signal sources. The CMOS input accepts ground-referenced signals directly, simplifying single-supply signal scaling in 3.3 V and 5 V systems. The 18.7 µA quiescent current is negligible compared to typical ADC core currents, making the buffer effectively free in system power budget terms.
推荐
Industrial IoT Sensor Node Analog Front-End
The MCP607T-I/ST is a strong fit for industrial IoT sensor nodes requiring low standby power and ground-referenced signal handling. Its 2.5 V to 6.0 V supply range accepts 3.3 V regulated rails, two AA cells in series, or single-cell lithium with low-dropout regulation. The CMOS input stage interfaces directly to 4-20 mA loop sensors, resistive bridges, and thermocouples with minimal bias-current error, while the rail-to-rail output drives 3.3 V ADC inputs at full scale. The industrial -40 °C to +85 °C temperature range handles outdoor and factory-floor environments without derating. Combined with a low-power MCU, it enables multi-year battery-life sensor nodes.
推荐
Microphone Preamplifier for Voice-Input Devices
The MCP607T-I/ST functions as a microphone preamplifier in voice remote controls, intercoms, and battery-powered acoustic monitors. Its 1 pA input bias current and CMOS noise performance suit electret and MEMS microphone sources, while the rail-to-rail output provides full-range audio swing on a 3.3 V or 5 V supply. The 18.7 µA quiescent current is acceptable for always-on voice activation circuits when paired with duty-cycled bias schemes. The industrial temperature range supports both indoor and outdoor voice-interface products such as doorbells and security sensors.
推荐
推荐产品汇总
工程参考数据： MCP607T-I/ST ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MCP607T-E/ST | MCP617T-I/ST | MCP604T-I/ST | MCP6002T-I/ST | MCP6022T-I/ST |
|---|---|---|---|---|---|---|
| Package | 8-TSSOP (ST) | 8-TSSOP (ST) - same | 8-TSSOP (ST) - same | 8-TSSOP (ST) - same | 8-TSSOP (ST) - same | 8-TSSOP (ST) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Gain Bandwidth Product (GBW) | 155 kHz (typ) | 155 kHz (typ) | 190 kHz (typ) | 14 kHz (typ) | 1 MHz (typ) | 2.8 MHz (typ) |
| Quiescent Current per channel (typ) | 18.7 µA | 18.7 µA | ~25 µA | 0.6 µA | 100 µA | ~200 µA |
| Supply Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 1.4 V to 6.0 V | 1.8 V to 6.0 V | 2.5 V to 5.5 V |
| Input Offset Voltage (max) | 250 µV | 250 µV | 150 µV | 3 mV | 4.5 mV | 500 µV |
| Rail-to-Rail Output | Yes | Yes | Yes | Yes | Yes (RRIO) | Yes |
| Temperature Grade | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C (Extended) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) |
| Channels | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) |
关键差异点
- Best-in-class quiescent current for the bandwidth class （对比 MCP6002T-I/ST)
- Higher gain-bandwidth product than lower-power family member （对比 MCP604T-I/ST)
- Lower input offset voltage than general-purpose CMOS op amps （对比 MCP6002T-I/ST)
- Industrial temperature range with same pinout （对比 MCP6022T-I/ST)
设计说明
Estimated: with VDD = 3.3 V and both channels active, the MCP607T-I/ST draws roughly 37 µA of supply current at no-load. Add a 0.1 µF X7R ceramic decoupling capacitor within 5 mm of the VDD pin and a 1 µF to 10 µF bulk capacitor on the supply rail. For battery-powered designs, place the device in a low-power mode by reducing VDD to its minimum (2.5 V) when signal activity is low - quiescent current scales roughly linearly with supply voltage on CMOS op amps.
Keep the input traces short and routed away from switching signals to minimize leakage and noise pickup on the high-impedance CMOS inputs. Use a ground pour on the top layer stitched with multiple vias to the ground plane, and place the feedback network components close to the inverting input pin. For transimpedance designs, keep the feedback resistor and photodiode capacitance loop area minimal to reduce stability issues; a small feedback capacitor in parallel with Rf is often required.
The CMOS input stage is susceptible to ESD events; if the device is exposed to user-contact signals, add external ESD protection diodes or TVS arrays at the connector. The 1 pA typical input bias current increases at high temperatures - budget for this in high-impedance sensor designs operating above 60 °C. Avoid reverse-biasing the input ESD diodes beyond the absolute maximum rating of -0.3 V below VSS; large source impedances combined with fast transients can otherwise cause latch-up.
Do not assume rail-to-rail output holds all the way to the rails under heavy loads - at 10 mA load, the output typically swings only within 50-100 mV of the supply. The input common-mode range includes the negative rail but does NOT include the positive rail (non-RRIO); for signals approaching VDD, level-shift or use a true RRIO part such as MCP6002. The MSL-1 rating permits unlimited floor life, but standard ESD handling precautions still apply during board assembly.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications evaluate the AEC-Q100 grade MCP607T-I/ST variants if available from Microchip. MSL-1 rated per Microchip product page; lead-free (Pb-free) reflow profile per JEDEC J-STD-020.
