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MCP6274 Datasheet(PDF) 10 Page - Microchip Technology |
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MCP6274 Datasheet(HTML) 10 Page - Microchip Technology |
10 / 34 page MCP6271/2/3/4/5 DS21810D-page 10 2004 Microchip Technology Inc. 3.0 PIN DESCRIPTIONS Descriptions of the pins are listed in Table 3-1 (single op amps) and Table 3-2 (dual and quad op amps). TABLE 3-1: PIN FUNCTION TABLE FOR SINGLE OP AMPS TABLE 3-2: PIN FUNCTION TABLE FOR DUAL AND QUAD OP AMPS. 3.1 Analog Outputs The output pins are low-impedance voltage sources. 3.2 Analog Inputs The non-inverting and inverting inputs are high- impedance CMOS inputs with low bias currents. 3.3 MCP6275’s VOUTA/VINB+ Pin For the MCP6275 only, the output of op amp A is connected directly to the non-inverting input of op amp B; this is the VOUTA/VINB+ pin. This connection makes it possible to provide a CS pin for duals in 8-pin packages. 3.4 CS Digital Input This is a CMOS, Schmitt-triggered input that places the part into a low-power mode of operation. 3.5 Power Supply (VSS and VDD) The positive power supply (VDD) is 2.0V to 5.5V higher than the negative power supply (VSS). For normal operation, the other pins are between VSS and VDD. Typically, these parts are used in a single (positive) supply configuration. In this case, VSS is connected to ground and VDD is connected to the supply. VDD will need a local bypass capacitor (typically 0.01 µF to 0.1 µF) within 2 mm of the VDD pin. These parts need to use a bulk capacitor (within 100 mm), which can be shared with nearby analog parts. MCP6271 (PDIP, SOIC, MSOP) MCP6271 (SOT-23-5) MCP6271R (SOT-23-5) MCP6273 (PDIP, SOIC, MSOP) MCP6273 (SOT-23-6) Symbol Description 61 1 6 1 VOUT Analog Output 24 4 2 4 VIN– Inverting Input 33 3 3 3 VIN+ Non-inverting Input 75 2 7 6 VDD Positive Power Supply 42 5 4 2 VSS Negative Power Supply —— — 8 5 CS Chip Select 1,5,8 — — 1,5 — NC No Internal Connection MCP6272 MCP6274 MCP6275 Symbol Description 11 — VOUTA Analog Output (op amp A) 222 VINA– Inverting Input (op amp A) 333 VINA+ Non-inverting Input (op amp A) 848 VDD Positive Power Supply 55 — VINB+ Non-inverting Input (op amp B) 666 VINB– Inverting Input (op amp B) 777 VOUTB Analog Output (op amp B) —8— VOUTC Analog Output (op amp C) —9— VINC– Inverting Input (op amp C) —10 — VINC+ Non-inverting Input (op amp C) 4114 VSS Negative Power Supply —12 — VIND+ Non-inverting Input (op amp D) —13 — VIND– Inverting Input (op amp D) —14 — VOUTD Analog Output (op amp D) —— 1 VOUTA /VINB+ Analog Output (op amp A)/Non-inverting Input (op amp B) —— 5 CS Chip Select |
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