component
MCP661T-E
Public Made by Adomby adom
Microchip Tech Operational Amplifier, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownMCP661T-E
Microchip Tech · Operational Amplifier · SOT-23-5
MCP661T-E from Microchip Tech, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOUT | output | The analog output pin (VOUT) is a low-impedance voltage source. |
| 2 | VSS | power_in | The negative power supply pin (VSS) is connected to ground in typical single-supply configurations, and VDD is specified 2.5V to 5.5V above it. |
| 3 | VIN+ | power_in | The non-inverting input (VIN+) is a high-impedance CMOS input with low bias current. |
| 4 | VIN- | power_in | The inverting input (VIN-) is a high-impedance CMOS input with low bias current. |
| 5 | VDD | power_in | The positive power supply pin (VDD) is 2.5V to 5.5V higher than VSS and needs bypass capacitors. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-5 |
| Category | Operational Amplifier/Comparator |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.5 | 5.5 | V | 4 | ||
| Input Offset Voltage | VOS | -8 | 1.8 | 8 | mV | 3 | |
| Power Supply Rejection Ratio | PSRR | 61 | 76 | dB | 3 | ||
| Common-Mode Rejection Ratio | CMRR | 64 | 79 | dB | VDD = 2.5V, VCM = -0.3V to 1.2V | 3 | |
| Common-Mode Rejection Ratio | CMRR | 66 | 81 | dB | VDD = 5.5V, VCM = -0.3V to 4.2V | 3 | |
| DC Open-Loop Gain (large signal) | AOL | 88 | 117 | dB | VDD = 2.5V, VOUT = 0.3V to 2.2V | 3 | |
| DC Open-Loop Gain (large signal) | AOL | 94 | 126 | dB | VDD = 5.5V, VOUT = 0.3V to 5.2V | 3 | |
| Output Short-Circuit Current | ISC | 45 | 90 | 145 | mA | VDD = 2.5V (Note 2) | 3 |
| Output Short-Circuit Current | ISC | 40 | 80 | 150 | mA | VDD = 5.5V (Note 2) | 3 |
| Quiescent Current per Amplifier | IQ | 3 | 6 | 9 | mA | No Load Current | 4 |
| Specified Temperature Range | TA | -40 | 125 | °C | 5 | ||
| Operating Temperature Range | TA | -40 | 125 | °C | Note 1 | 5 | |
| Storage Temperature Range | TA | -65 | 150 | °C | 5 | ||
| Maximum Junction Temperature | 150 | °C | 3 | ||||
| Current at Output and Supply Pins | -150 | 150 | mA | 3 | |||
| Current at Input Pins | -2 | 2 | mA | 3 | |||
| ESD protection on all pins | 1 | kV | HBM | 3 | |||
| ESD protection on all pins | 200 | V | MM | 3 | |||
| Thermal Resistance, 5L-SOT-23 | θJA | 201 | °C/W | 5 | |||
| Input Offset Voltage Drift | VOS/TA | 2 | µV/°C | TA = -40°C to +125°C | 3 | ||
| Input Bias Current | IB | 6 | pA | 3 | |||
| Input Bias Current across temperature | IB | 130 | pA | TA = +85°C | 3 | ||
| Input Bias Current across temperature | IB | 1700 | 5000 | pA | TA = +125°C | 3 | |
| Input Offset Current | IOS | 10 | pA | 3 | |||
| Gain-Bandwidth Product | GBWP | 60 | MHz | 4 | |||
| Phase Margin | PM | 65 | ° | G = +1 | 4 | ||
| Slew Rate | SR | 32 | V/µs | G = +1 | 4 | ||
| Rise Time, 10% to 90% | tr | 5 | ns | G = +1, VOUT = 100 mVP-P | 4 | ||
| Input Noise Voltage | Eni | 14 | µVP-P | f = 0.1 Hz to 10 Hz | 4 | ||
| Input Noise Voltage Density | eni | 6.8 | nV/Hz | f = 1 MHz | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | 14-lead SN = Plastic Small Outline (3.90 mm), 8-lead | 65 |
CAD (KiCad official)
- Symbol:
MCP661T-E - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
mcp661t-e-etched.step/mcp661t-e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp661t-e.step/mcp661t-e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (68 pp, sha256
53be86cade882a02, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).