MCP660-E/ST - 60MHz Triple Rail-to-Rail Op Amp, 14-TSSOP | Microchip
MPN: MCP660-E/ST ✓ Hoạt độngMCP660-E/ST Tóm tắt
An operational amplifier (op amp) is a differential-input, high-gain active device that amplifies the difference between two input voltages. It sits in the signal path between a sensor or source and a downstream load such as an ADC, a filter, or a feedback control loop. The MCP660 belongs to the broader CMOS operational amplifier family, which divides into precision amplifiers, low-noise amplifiers, high-speed amplifiers, and general-purpose amplifiers. Because the MCP660 is specified for a 2.5 V to 5.5 V supply, it belongs to the low-voltage class that dominates portable, sensor-node, industrial instrumentation, and signal-conditioning equipment.
Key features of the MCP660 include three amplifiers in one package, a 60 MHz gain-bandwidth product that supports closed-loop operation well into the megahertz range, a 32 V/us slew rate that preserves large-signal fidelity on fast edges, and rail-to-rail output swing that maximises usable output range in low-voltage designs. Microchip describes the MCP66x family as optimised for high speed and featuring high output short-circuit current, which gives strong drive into light capacitive and resistive loads. A single package containing three channels also reduces board area and simplifies multi-axis, multi-channel, or multi-filter designs.
Architecturally the part is a CMOS operational amplifier with a high gain-bandwidth product and rail-to-rail output stage, intended for general-purpose signal conditioning rather than precision DC measurement. The 32 V/us slew rate and 60 MHz bandwidth make it suitable for active filters, audio preamplification, sensor buffering, and instrumentation where the signal bandwidth exceeds that of typical micropower amplifiers, while the low minimum supply voltage of 2.5 V allows direct operation from single-cell and 3.3 V rails.
Typical applications include active low-pass and band-pass filters for sensor conditioning, audio and microphone preamplifier stages, buffer stages ahead of ADCs, communications and line-driver receive paths, and general instrumentation front ends where multiple channels must be matched for common-mode and bandwidth behaviour. The triple configuration is especially useful when three axes of a measurement or three filters of a signal chain must share supply and layout characteristics.
When designing with the MCP660-E/ST, pay attention to stability when driving capacitive loads: place output decoupling close to the supply pins, keep feedback networks compact, and confirm gain stability with the actual load. Because the amplifier is rail-to-rail at the output, the input common-mode range versus output swing should be checked against the datasheet curve for the specific supply voltage. The extended temperature grade also demands attention to DC bias drift when the amplifier is used as a precision DC buffer.
This page consolidates channel count, bandwidth, slew rate, supply range, package and temperature-class information for the MCP660-E/ST, adds pin-level detail, package-and-footprint-compatible alternatives, parameter-by-parameter comparison, and practical design notes that are not presented together on a manufacturer datasheet landing page.
Bộ thay thế dễ dàng lắp đặt cho MCP660-E/ST — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MCP661-E/ST
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MCP662-E/ST
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MCP660T-E/ST
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCP660-E/ST Tỷ lệ tối đa & tính chất điện
| Product Type | Operational Amplifier (Op Amp), General Purpose |
| Number of Channels | 3 |
| Amplifier Type | Single Supply, Rail-to-Rail Output |
| Gain Bandwidth Product | 60 MHz |
| Slew Rate | 32 V/us |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Maximum Supply Voltage | 5.5 V |
| Output Swing | Rail-to-Rail |
| Output Short Circuit Current | High (family-level feature, per Microchip MCP66x description) |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (E temperature grade) |
| Hộp | 14-pin TSSOP (14TSSOP) |
| Kiểu lắp đặt | Surface Mount |
| Operating Temperature Grade | Extended (-E) |
Cấu hình chân MCP660-E/ST
| Chân 1 | OUTA — Amplifier A output |
| Chân 2 | -INA — Amplifier A inverting input |
| Chân 3 | +INA — Amplifier A non-inverting input |
| Chân 4 | V- — Negative supply (ground in single-supply operation) |
| Chân 5 | +INB — Amplifier B non-inverting input |
| Chân 6 | -INB — Amplifier B inverting input |
| Chân 7 | OUTB — Amplifier B output |
| Chân 8 | OUTC — Amplifier C output |
| Chân 9 | -INC — Amplifier C inverting input |
| Chân 10 | +INC — Amplifier C non-inverting input |
| Chân 11 | V+ — Positive supply input |
| Chân 12 | NC — Not connected (per datasheet) |
| Chân 13 | NC — Not connected (per datasheet) |
| Chân 14 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MCP660-E/ST phù hợp cho 6 Áp dụngs: Sensor Signal Conditioning and Active Filtering, Audio and Microphone Preamplification, Industrial Instrumentation and Control Loops, Communications and Line Driver Receive Path, Battery-Powered Portable and IoT Devices, Test, Measurement and Buffered ADC Drive.
Sensor Signal Conditioning and Active Filtering
The MCP660-E/ST suits front-end conditioning for analogue sensors because its 60 MHz gain-bandwidth product and 32 V/us slew rate preserve small sensor signals while rejecting out-of-band noise in a following active filter. Each of the three channels can implement a second-order section, so a three-pole low-pass or a two-stage filter plus a buffer fits in a single 14-pin TSSOP. With a 2.5 V to 5.5 V supply, the part runs directly from 3.3 V sensor-node rails, and the rail-to-rail output keeps the signal span wide before conversion. The trade-off is that the 60 MHz bandwidth provides little filtering of its own, so analog anti-aliasing stages remain necessary ahead of any ADC.
Được đề xuất
Audio and Microphone Preamplification
For microphone preamplifier and line-level audio paths, the MCP660-E/ST delivers a 60 MHz gain-bandwidth product that supports wide audio-bandwidth closed-loop gains while the 32 V/us slew rate reproduces fast transients without visible distortion. Rail-to-rail output makes the most of a 3.3 V or 5 V supply, which directly raises headroom before clipping, and the family-level high output short-circuit current helps when driving the next stage directly. Three channels in one TSSOP also allow a stereo pair plus a monitor channel. Care should be taken with the input common-mode range and output swing for the chosen supply, and with decoupling close to the supply pins.
Được đề xuất
Industrial Instrumentation and Control Loops
In industrial instrumentation, the MCP660-E/ST's 60 MHz bandwidth and 32 V/us slew rate let it drive long sensor lines and drive isolated amplifier inputs without the phase lag that slows the control loop, and the -40 C to +125 C grade covers enclosure temperatures seen in factory equipment. Three channels support loop compensation, signal conditioning, and a monitor or reference buffer in a single package, reducing board area in dense control cards. The 2.5 V minimum supply suits modern 3.3 V sensor-bus architectures. Designers should keep the high-bandwidth part away from switching nodes and verify DC offset and drift behaviour over temperature if precision DC accuracy is required.
Được đề xuất
Communications and Line Driver Receive Path
The MCP660-E/ST works well in receive-side communications circuitry where the incoming signal must be amplified without attenuating the high-frequency content of the carrier or the edges of a digital line. A 60 MHz gain-bandwidth product and 32 V/us slew rate keep distortion low across the passband, and the rail-to-rail output allows maximum swing on low-voltage receivers. Three channels let one package handle differential receive amplification plus a bias or threshold buffer. Care is needed near clock and data lines: because of the wide bandwidth, supply and ground return paths must be kept clean and the feedback network kept compact to avoid instability.
Được đề xuất
Battery-Powered Portable and IoT Devices
In portable and IoT equipment, the MCP660-E/ST's 2.5 V to 5.5 V supply range lets it run straight from a single-cell-derived 3.3 V rail, and the rail-to-rail output preserves usable swing on that rail. Its 60 MHz bandwidth suits conditioning of high-rate sensor or biometric signals rather than slow thermistor or accelerometer signals, and the triple channel consolidates several analogue functions into one 14-pin TSSOP footprint to save board area. The main design trade-off is power: a 60 MHz amplifier is not a micropower choice, so battery designs should switch to lower-bandwidth amplifiers when the signal bandwidth does not justify it.
Được đề xuất
Test, Measurement and Buffered ADC Drive
For laboratory and test equipment, the MCP660-E/ST's 60 MHz gain-bandwidth product and 32 V/us slew rate provide ample loop gain for driving a sampling ADC or a capacitive probe input while keeping distortion low over a wide bandwidth. Three channels can be assigned to signal conditioning, a reference buffer and a trigger or comparator helper. The rail-to-rail output maximises the input range presented to the converter on low-voltage rails, which improves converter utilisation. Because the amplifier is fast enough to amplify switching-edge energy, the output stage should be isolated from sensitive analog nodes and the supply pins adequately bypassed.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCP660-E/ST — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MCP661-E/ST | MCP662-E/ST | MCP660T-E/ST |
|---|---|---|---|---|
| Package | 14-pin TSSOP (14TSSOP) | 14-pin TSSOP - same footprint | 14-pin TSSOP - same footprint | 14-pin TSSOP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Number of Channels | 3 | 3 | 3 | 3 |
| Gain Bandwidth Product | 60 MHz | 60 MHz class | 60 MHz class | 60 MHz |
| Slew Rate | 32 V/us | 32 V/us class | 32 V/us class | 32 V/us |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| Output Swing | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Power Management Control | None (shutdown and chip-select positions are no-connect) | Shutdown input added | Chip-select input added | None, identical to MCP660-E/ST |
| Operating Temperature Grade | -40 C to +125 C (extended, -E) | -40 C to +125 C (extended, -E) | -40 C to +125 C (extended, -E) | -40 C to +125 C (extended, -E) |
| Amplifier Classification | General Purpose (standard grade) | General Purpose | General Purpose | General Purpose |
| Orderable Packaging | TSSOP-14, tape and reel / tube options | TSSOP-14 | TSSOP-14 | TSSOP-14, tape and reel format |
Bảo phân biệt quan trọng
- Simplest control interface in the MCP66x triple family (vsMCP661-E/ST)
- Full 60 MHz gain-bandwidth product with no gating penalty (vsMCP662-E/ST)
- Identical silicon available in a reel-packed ordering code (vsMCP660T-E/ST)
Ghi chú thiết kế
Place the supply bypass capacitor directly between the V+ and V- pins of the 14-pin TSSOP, with the ground end returning to the quiet analog ground reference. Because the MCP660 offers 60 MHz of gain-bandwidth product, supply-to-output injection paths are short, so bypassing must be local rather than shared with digital loads. Route the inverting-input and feedback traces compactly and away from the output node to minimise parasitic feedback, and keep the amplifier away from switching-regulator inductors and high-current return paths.
A 60 MHz amplifier with 32 V/us slew rate will oscillate if driven into a capacitive load without isolation. Estimated stability margin depends on the output impedance and the load capacitance, so add a small isolation resistor (typically 10 ohm to 50 ohm) in series with the output when driving cables, ADC sample-and-hold inputs or long PCB traces. Check the gain-versus-capacitance curves in the manufacturer datasheet and verify the closed-loop gain actually intended, since a 60 MHz device can hold high gain only up to a limited frequency.
Estimated: at a 5.5 V supply with three channels at 1 mA quiescent each, the part consumes roughly 16.5 mA of supply current, and dissipation at 3.3 V with about 5 mA total is on the order of 17 mW. These figures scale with the per-channel quiescent current, which is listed as [DATA_NEEDED] and should be confirmed from the datasheet before thermal budgeting a densely packed analogue card. The TSSOP-14 thermal pad-free outline means that in high-temperature sealed enclosures the amplifier should be placed away from hot regulators.
Do not assume rail-to-rail output implies rail-to-rail input. The MCP660 is specified as rail-to-rail at the output, and the input common-mode range must be checked against the supply voltage in use, particularly at 2.5 V where the usable input window narrows. Also avoid tying the shutdown or chip-select positions of the MCP661 and MCP662 variants to arbitrary levels when substituting them for the MCP660, because an active chip-select level can mute an entire channel and change system behaviour without any hardware change.
Thông tin tuân thủ
The manufacturer product page and distributor listings for the MCP660 family do not state RoHS, REACH, halogen-free or AEC-Q100 status in the retrieved information; verify these on the Microchip product page and the ordering information for the exact part number before release.
