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MCP6401RT-E/SL 数据表(PDF) 4 Page - Microchip Technology |
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MCP6401RT-E/SL 数据表(HTML) 4 Page - Microchip Technology |
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4 / 38 page  MCP6401/1R/1U/2/4 DS22229B-page 4 © 2010 Microchip Technology Inc. AC ELECTRICAL SPECIFICATIONS TEMPERATURE SPECIFICATIONS 1.2 Test Circuits The circuit used for most DC and AC tests is shown in Figure 1-1. This circuit can independently set VCM and VOUT; see Equation 1-1. Note that VCM is not the circuit’s Common Mode voltage ((VP +VM)/2), and that VOST includes VOS plus the effects (on the input offset error, VOST) of temperature, CMRR, PSRR and AOL. EQUATION 1-1: FIGURE 1-1: AC and DC Test Circuit for Most Specifications. Electrical Characteristics: Unless otherwise indicated, T A = +25°C, VDD = +1.8 to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF. (Refer to Figure 1-1). Parameters Sym Min Typ Max Units Conditions AC Response Gain Bandwidth Product GBWP — 1 — MHz Phase Margin PM — 65 — ° G = +1 V/V Slew Rate SR — 0.5 — V/µs Noise Input Noise Voltage Eni — 3.6 — µVp-p f = 0.1 Hz to 10 Hz Input Noise Voltage Density eni —28 — nV/ √Hz f = 1 kHz Input Noise Current Density ini —0.6 — fA/ √Hz f = 1 kHz Electrical Characteristics: Unless otherwise indicated, V DD = +1.8V to +6.0V and VSS = GND. Parameters Sym Min Typ Max Units Conditions Temperature Ranges Operating Temperature Range TA -40 — +125 °C Note 1 Storage Temperature Range TA -65 — +150 °C Thermal Package Resistances Thermal Resistance, 5L-SC70 θ JA —331 — °C/W Thermal Resistance, 5L-SOT-23 θ JA — 220.7 — °C/W Thermal Resistance, 8L-SOIC θ JA — 149.5 — °C/W Thermal Resistance, 8L-2x3 TDFN θ JA —41 — °C/W Thermal Resistance, 14L-SOIC θ JA —95.3 — °C/W Thermal Resistance, 14L-TSSOP θ JA —100 — °C/W Note 1: The internal junction temperature (T J) must not exceed the absolute maximum specification of +150°C. G DM R F RG ⁄ = V CM V P V DD 2 ⁄ + () 2 ⁄ = V OUT V DD 2 ⁄ () V P V M – () V OST 1GDM + () ++ = Where: GDM = Differential Mode Gain (V/V) VCM = Op Amp’s Common Mode Input Voltage (V) VOST = Op Amp’s Total Input Offset Voltage (mV) V OST V IN– V IN+ – = VDD RG RF VOUT VM CB2 CL RL VL CB1 100 k Ω 100 k Ω RG RF VDD/2 VP 100 k Ω 100 k Ω 60 pF 100 k Ω 1µF 100 nF VIN– VIN+ CF 6.8 pF CF 6.8 pF MCP640x |
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