MCP607-I/ST - Dual 155kHz CMOS Op Amp | Microchip
MPN： MCP607-I/ST ✓ 啟用中MCP607-I/ST 概覽
An operational amplifier is a voltage-gain building block used to amplify small signals, buffer sensors, drive analog stages, and implement active filters. The MCP607 belongs to the micropower CMOS operational-amplifier hierarchy, combining low bias current, low quiescent consumption, rail-to-rail output capability, and unity-gain stability. These characteristics make it suitable for battery-powered equipment, portable instrumentation, low-power audio paths, and general analog signal-conditioning systems.
Principal features include a 155 kHz gain-bandwidth product, a maximum input offset voltage of 250 uV, a typical operating current of 18.7 uA, and a maximum quiescent current of 25 uA. The device also provides 91 dB common-mode rejection and an 0.0800 V/uS slew rate. Its CMOS input stage supports input bias current as low as 80 pA at +85 degrees C, helping preserve accuracy when sensing high-impedance sources.
The dual configuration contains two independent amplifiers within one package, reducing board area compared with two separate single-channel devices. Both channels are unity-gain stable and use rail-to-rail output stages, allowing the output to approach the supply limits under suitable load conditions. Single-supply operation simplifies portable-system design because the signal can be biased around ground or a midpoint reference without a negative rail.
Typical applications include low-power sensor conditioning, portable audio amplification, battery-operated test equipment, analog-to-digital converter input buffers, and general voltage buffering. In a high-impedance sensor interface, the low input bias current limits error generated by the source resistance. In a low-frequency filter or gain stage, the 155 kHz bandwidth provides useful bandwidth while the 18.7 uA typical operating current limits power consumption.
Designers should review the MCP607 input common-mode range, output-load limits, stability behavior, and noise characteristics against the intended signal path. Input and output filtering, grounding, and decoupling should follow the recommended application circuit in the manufacturer datasheet, especially when the amplifier drives capacitive loads or operates near its supply-voltage limits.
This page combines the manufacturer device characteristics with practical application guidance, a parameter comparison, package details, and engineering-oriented design notes. It helps engineers evaluate the MCP607-I/ST for low-power analog systems without obscuring the differences between operation current, bandwidth, offset voltage, and temperature grade.
直接替換替代品，適用於 MCP607-I/ST — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MCP607-I/ST （相同外形與佔位） — 差異在於 Amplifier Type, Package, Number of Channels, Operating Temperature Range.
MCP607T-I/ST
✅ 直接替換聯絡詢價
查看資料表 →MCP607-E/ST
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MCP607-I/ST 最大額定值與電氣特性
| Amplifier Type | Dual operational amplifier |
| Gain-Bandwidth Product | 155 kHz |
| Typical Operating Current | 18.7 uA |
| Maximum Quiescent Current | 25 uA |
| Input Offset Voltage | Less than 250 uV maximum |
| Input Bias Current | 80 pA maximum at +85 degrees C |
| Common-Mode Rejection Ratio | 91 dB |
| Slew Rate | 0.0800 V/uS |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Output Swing | Rail-to-rail |
| Gain Stability | Unity-gain stable |
| 工作溫度範圍 | -40 degrees C to +85 degrees C |
| 封裝 | 8-pin TSSOP |
| 安裝類型 | Surface mount |
| Process Technology | Advanced CMOS |
| Channel Count | 2 channels |
| Supply Type | Single supply |
MCP607-I/ST 8-pin tssop 腳位配置指南
MCP607-I/ST（8-pin tssop 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MCP607-I/ST.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP607-I/ST 適用於 6 應用s: Battery-Powered Sensor Conditioning, Portable Audio Signal Conditioning, Low-Power ADC Input Buffer, Precision Voltage Buffer, Low-Frequency Active Filter, Industrial Measurement Interface.
Battery-Powered Sensor Conditioning
The MCP607-I/ST fits low-power sensor interfaces because its 18.7 uA typical operating current and 80 pA maximum input bias current at +85 degrees C reduce errors from high source resistance. The two unity-gain-stable channels can provide one stage of gain and the other can buffer the sensor before an ADC. Operate from a 2.5 V to 6.0 V single supply and place the amplifier close to the sensor return to minimize noise pickup. Its below-250 uV offset rating supports precision conditioning, although the complete error budget should include sensor drift, resistor tolerance, and ADC input characteristics.
推薦
Portable Audio Signal Conditioning
The MCP607-I/ST is useful for pre-amplifier and buffering stages in portable audio equipment because it combines rail-to-rail output swing with a 155 kHz gain-bandwidth product and 18.7 uA typical operating current. Its 91 dB common-mode rejection helps reject common-mode interference in a compact analog path. The 8-pin TSSOP package saves board area, while the dual configuration can condition left and right channels. Designers should verify the required output amplitude, load impedance, and headroom before using the amplifier to drive headphones or another low-impedance stage.
推薦
Low-Power ADC Input Buffer
The MCP607-I/ST can buffer a sensor or divider network into an analog-to-digital converter without drawing the substantial current associated with a general-purpose precision amplifier. Its 155 kHz gain-bandwidth product accommodates low-frequency acquisition signals, while the maximum input offset voltage below 250 uV helps control DC error. Both channels are unity-gain stable, allowing one to drive an ADC input and the other to support gain or reference conditioning. Confirm ADC input capacitance and the MCP607 output stability behavior when driving long capacitive traces or an acquisition network.
推薦
Precision Voltage Buffer
The MCP607-I/ST works as a voltage buffer when high input impedance and low output loading are more important than high bandwidth. Its low bias current of 80 pA maximum at +85 degrees C minimizes disturbance to a high-impedance source, while the 18.7 uA typical operating current supports portable instruments. The rail-to-rail output allows useful signal range on a single 2.5 V to 6.0 V supply. For potentiometer, bridge, or divider interfaces, include suitable filtering and verify the input common-mode range at the selected supply voltage and operating temperature.
推薦
Low-Frequency Active Filter
The MCP607-I/ST is suitable for first-order or modest-bandwidth active-filter stages where low quiescent current is valuable. A 155 kHz gain-bandwidth product provides ample loop gain for many low-frequency filter designs, and unity-gain stability supports direct buffer configurations. Its 0.0800 V/uS slew rate should be checked against the filter output waveform and frequency. Use stable resistor and capacitor selections, keep the two amplifier channels electrically independent, and follow the manufacturer’s recommended application circuit when noise, loading, or dynamic-range behavior is critical.
推薦
Industrial Measurement Interface
The MCP607-I/ST can condition slow industrial measurement signals while operating from a 2.5 V to 6.0 V rail. Its -40 degrees C to +85 degrees C operating range, 91 dB common-mode rejection, and low typical operating current of 18.7 uA support compact acquisition electronics. The dual package provides separate channels for a measurement signal and an excitation or reference path. Protection against industrial transients should be implemented outside the amplifier, and the input common-mode and output ranges must remain within the manufacturer limits over the complete temperature range.
推薦
推薦產品摘要
工程參考資料，適用於 MCP607-I/ST — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MCP607T-I/ST | MCP607-E/ST |
|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-pin TSSOP | 8-pin TSSOP - same | 8-pin TSSOP - same |
| Amplifier Configuration | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier |
| Supply Voltage Range | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V |
| Gain-Bandwidth Product | 155 kHz | 155 kHz | 155 kHz |
| Typical Operating Current | 18.7 uA | 18.7 uA | 18.7 uA |
| Maximum Input Offset Voltage | Less than 250 uV | Less than 250 uV | Less than 250 uV |
| Common-Mode Rejection Ratio | 91 dB | 91 dB | 91 dB |
| Slew Rate | 0.0800 V/uS | 0.0800 V/uS | 0.0800 V/uS |
| Operating Temperature Range | -40 degrees C to +85 degrees C | -40 degrees C to +85 degrees C | Extended temperature grade |
主要差異化特點
- Identified production packing option (對比MCP607T-I/ST)
- Extended temperature option in the same footprint (對比MCP607-E/ST)
- Low-power dual-channel integration (對比Two separate single amplifiers)
設計說明
Budget the MCP607-I/ST supply current from the manufacturer’s 18.7 uA typical operating-current figure while including both channels, load current, and upstream regulator tolerance. Because the device accepts 2.5 V to 6.0 V, check whether a low quiescent-current rail creates an output-voltage margin problem at light load. Use local bypass capacitance and a low-impedance ground return so switching ripple from the supply does not become input-referred noise in the amplifier.
Do not assume that rail-to-rail output swing guarantees an exact zero-volt or full-supply output under every load. Check the manufacturer’s output-voltage headroom curves against the required load current and temperature. Likewise, verify the input common-mode range for the selected supply voltage. The MCP607-I/ST is unity-gain stable, but driving a capacitive load directly can still require an isolation resistor or additional compensation.
Place the device close to the source being buffered to minimize capacitive loading and noise pickup on a high-impedance input. Keep the ground return short and route both amplifier channels with short, symmetrical signal paths. Place supply bypass capacitance near the device pins and keep high-current return currents out of the sensitive input-reference trace. Review the TSSOP land pattern against the official package drawing before PCB release.
For sensor and high-impedance inputs, minimize leakage around the input pins and use guarding where practical. The 80 pA maximum bias current at +85 degrees C is low, but board contamination and connector leakage can still create meaningful errors at very high source impedances. Add input filtering with capacitors whose leakage and dielectric behavior suit the signal bandwidth, and avoid routing the input across long supply or switching-regulator regions.
合規資訊
Compliance status was not established in the manufacturer page excerpts or distributor product data. The industrial temperature grade and surface-mount package do not by themselves establish RoHS, REACH, AEC-Q100, halogen-free, or conflict-minerals compliance.