(4pcs) TL7660IP PDIP8 — Fourpack of TL7660IP switchedcapacitor voltage inverters in 8pin PDIP throughhole packages. Each IC converts a single positive supply into a corresponding negative supply using external capacitors, providing a compact, lowpartscount solution when a negative rail is required. Key benefits Supplies a negative rail from a single positive supply: eliminates the need for dual batteries or a separate negative supply in many lowcurrent designs. Low parts count and easy implementation: only two external capacitors are required to form the charge pump, reducing PCB area and BOM complexity. Throughhole PDIP8 package: ideal for prototyping, breadboarding, and throughhole designs; fits standard 8pin sockets and PCBs. Four identical ICs per pack: convenient for small projects, repairs, or multiple circuit channels without reordering. What it does and why you need it The TL7660IP is a CMOS switchedcapacitor voltage converter/inverter that generates a negative voltage rail from a positive input supply. This is useful whenever a negative reference or negative supply is needed but only a single positive supply is available. It is particularly effective for lowcurrent applications where a compact, inexpensive inverter is preferred over a bulky or costly negative regulator or an additional battery. Key attributes Functionality: Switchedcapacitor voltage inverter (charge pump) for producing a negative supply from a positive input. Package: 8pin PDIP (throughhole), compatible with standard DIP sockets and prototyping boards. Quantity: Pack of 4 TL7660IP ICs. External components: Requires two external capacitors (pump capacitor and reservoir capacitor) for normal operation. Intended use: Lowcurrent negative supply generation and simple chargepump applications. Practical applications / use cases Opamp circuits: Provide a negative rail for singlesupply amplifier circuits that require a small negative bias for better signal swing or to accommodate input/output range. Sensor and instrumentation frontends: Create the negative reference for sensors or ADC input stages where only a single positive supply is available. Lowpower communications and level shifting: Generate negative voltages for small RS232 interface circuits or biasing circuits in batteryoperated devices. Integration notes (concise, practical) Use two external capacitors as recommended for chargepump operation: one pump capacitor between the switching pins and one reservoir/output capacitor between the negative output and ground. Mount in a standard 8pin DIP socket or solder directly to throughhole PCBs for stable, easy connections during prototyping or production. suited for lowcurrent applications; evaluate output current and ripple requirements in your design and choose appropriate capacitor values for performance and stability. What's included Four (4) TL7660IP ICs in PDIP8 packages. This fourpack of TL7660IP PDIP8 devices provides a straightforward, spacesaving way to generate negative supply rails for a variety of lowcurrent electronics projects and repairs while keeping prototyping and assembly simple and reliable.