MCP6241/2/4 50 µA, 550 kHz Rail-to-Rail Op Amp Features Description • • • • • • The Microchip Technology Inc. MCP6241/2/4 operational amplifiers (op amps) provide wide bandwidth for the quiescent current. The MCP6241/2/4 has a 550 kHz Gain Bandwidth Product (GBWP) and 68° (typ.) phase margin. This family operates from a single supply voltage as low as 1.8V, while drawing 50 µA (typ.) quiescent current. In addition, the MCP6241/2/4 family supports rail-to-rail input and output swing, with a common mode input voltage range of VDD + 300 mV to VSS – 300 mV. These op amps are designed in one of Microchip’s advanced CMOS processes. Gain Bandwidth Product: 550 kHz (typ.) Supply Current: IQ = 50 µA (typ.) Supply Voltage: 1.8V to 5.5V Rail-to-Rail Input/Output Extended Temperature Range: -40°C to +125°C Available in 5-pin SC-70 and SOT-23 packages Applications • • • • • • Automotive Portable Equipment Photodiode (Transimpedance) Amplifier Analog Filters Notebooks and PDAs Battery-Powered Systems Package Types MCP6241 MCP6241 PDIP, SOIC, MSOP SOT-23-5 VOUT 1 Available Tools • SPICE Macro Models (at www.microchip.com) • FilterLab® Software (at www.microchip.com) + VSS 2 5 VDD NC 1 VIN– 2 – 7 VDD 4 VIN– VIN+ 3 + 6 VOUT – VIN+ 3 VSS 4 SOT-23-5 + VIN2 RG1 – 4 VIN– MCP6241 + RZ VOUT 5 VINB+ MCP6244 PDIP, SOIC, TSSOP 5 VDD VIN+ 1 VSS 2 – VOUTA 1 VINA– 2 4 VOUT VINA+ 3 VDD 4 VINB+ 5 VINB– 6 VOUTB 7 © 2005 Microchip Technology Inc. + - MCP6241U VIN– 3 Summing Amplifier Circuit 7 VOUTB 6 VINB_ SC-70-5, SOT-23-5 + – RX VINA+ 3 8 VDD - + VSS 4 RF VDD VOUTA 1 VINA_ 2 VIN+ 3 VIN1 RY PDIP, SOIC, MSOP 5 VSS VOUT 1 VDD 2 5 NC MCP6242 MCP6241R Typical Application RG2 8 NC 14 VOUTD - + + - 13 VIND– 12 VIND+ 11 VSS 10 VINC+ - + +- 9 V – INC 8 VOUTC DS21882C-page 1 MCP6241/2/4 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † VDD – VSS ........................................................................7.0V † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. All Inputs and Outputs ................... VSS – 0.3V to VDD + 0.3V Difference Input Voltage ...................................... |VDD – VSS| Output Short Circuit Current ..................................continuous Current at Input Pins ....................................................±2 mA Current at Output and Supply Pins ............................±30 mA Storage Temperature.....................................-65°C to +150°C Maximum Junction Temperature (TJ) .......................... +150°C ESD Protection On All Pins (HBM;MM) ............... ≥ 4 kV; 300V DC ELECTRICAL CHARACTERISTICS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +5.5V, VSS = GND, VCM = VDD/2, RL = 100 kΩ to VDD/2 and VOUT ≈ VDD/2. Parameters Sym Min Typ Max Units Conditions Input Offset Voltage VOS -5.0 — +5.0 mV VCM = VSS Extended Temperature VOS -7.0 — +7.0 mV TA= -40°C to +125°C, VCM = VSS (Note) ΔVOS/ΔTA — ±3.0 — PSRR — 83 — dB Input Bias Current: IB — ±1.0 — pA At Temperature IB — 20 — pA TA = +85°C TA = +125°C Input Offset Input Offset Drift with Temperature Power Supply Rejection µV/°C TA= -40°C to +125°C, VCM = VSS VCM = VSS Input Bias Current and Impedance At Temperature IB — 1100 — pA Input Offset Current IOS — ±1.0 — pA Common Mode Input Impedance ZCM — 1013||6 — Ω||pF Differential Input Impedance ZDIFF — 1013||3 — Ω||pF Common Mode Input Range VCMR VSS – 0.3 — VDD + 0.3 V Common Mode Rejection Ratio CMRR 60 75 — dB VCM = -0.3V to 5.3V, VDD = 5V AOL 90 110 — dB VOUT = 0.3V to VDD – 0.3V, VCM = VSS — VDD – 35 mV RL = 10 kΩ, 0.5V Output Overdrive Common Mode Open-Loop Gain DC Open-Loop Gain (large signal) Output Maximum Output Voltage Swing Output Short-Circuit Current VOL, VOH VSS + 35 ISC — ±6 — mA VDD = 1.8V ISC — ±23 — mA VDD = 5.5V VDD 1.8 — 5.5 V IQ 30 50 70 µA Power Supply Supply Voltage Quiescent Current per Amplifier Note: IO = 0, VCM = VDD – 0.5V The SC-70 package is only tested at +25°C. DS21882C-page 2 © 2005 Microchip Technology Inc. MCP6241/2/4 AC ELECTRICAL CHARACTERISTICS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8 to 5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, RL = 10 kΩ to VDD/2 and CL = 60 pF. Parameters Sym Min Typ Max Units Conditions GBWP — 550 — kHz Phase Margin PM — 68 — ° Slew Rate SR — 0.30 — V/µs Input Noise Voltage Eni — 10 — µVP-P Input Noise Voltage Density eni — 45 — nV/√Hz f = 1 kHz Input Noise Current Density ini — 0.6 — fA/√Hz f = 1 kHz AC Response Gain Bandwidth Product G = +1 Noise f = 0.1 Hz to 10 Hz TEMPERATURE CHARACTERISTICS Electrical Characteristics: Unless otherwise indicated, VDD = +1.8V to +5.5V and VSS = GND. Parameters Sym Min Typ Max Units Extended Temperature Range TA -40 — +125 °C Operating Temperature Range TA -40 — +125 °C Storage Temperature Range TA -65 — +150 °C Thermal Resistance, 5L-SC70 θJA — 331 — °C/W Thermal Resistance, 5L-SOT-23 θJA — 256 — °C/W Thermal Resistance, 8L-MSOP θJA — 206 — °C/W Thermal Resistance, 8L-PDIP θJA — 85 — °C/W Thermal Resistance, 8L-SOIC θJA — 163 — °C/W Thermal Resistance, 14L-PDIP θJA — 70 — °C/W Thermal Resistance, 14L-SOIC θJA — 120 — °C/W Thermal Resistance, 14L-TSSOP θJA — 100 — °C/W Conditions Temperature Ranges (Note) Thermal Package Resistances Note: The internal Junction Temperature (TJ) must not exceed the Absolute Maximum specification of +150°C. © 2005 Microchip Technology Inc. DS21882C-page 3 MCP6241/2/4 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. 90 CMRR, PSRR (dB) 630 Samples VCM = VSS 85 PSRR (VCM = VSS) 80 75 CMRR (VCM = -0.3V to +5.3V, VDD = 5.0V) -50 -25 Input Offset Voltage (mV) FIGURE 2-4: Temperature. 120 100 100 30 20% 180 Samples VCM = VDD/2 TA = +85°C 15% 10% 5% 42 36 30 24 18 12 6 0% 0 -180 DS21882C-page 4 Input Bias Current at +85°C. Open-Loop Gain, Phase vs. 30% 25% 20% 180 Samples VCM = VDD/2 TA = +125°C 15% 10% 5% 0% Input Bias Current (pA) FIGURE 2-3: -210 100 1.E+ 1k 1.E+ 10k 100k 1M 10M 1.E+ 1.E+ 1.E+ 1.E+ Frequency 02 03 (Hz) 04 05 06 07 FIGURE 2-5: Frequency. Percentage of Occurrences Percentage of Occurrences 25% 0 -20 0.1 1.E+ 1 1.E+ 10 1.E01 00 01 100k 1.E+05 PSRR, CMRR vs. -150 0.6 FIGURE 2-2: Frequency. 1k 10k 1.E+03 1.E+04 Frequency (Hz) 20 0.4 100 1.E+02 -120 0.0 20 10 1.E+01 -90 Phase 40 2.0 40 60 1.8 50 -30 -60 1.6 PSRR+ 60 80 0.2 70 Gain 1.4 CMRR 80 0 RL = 10.0 k: VCM = VDD/2 1.2 PSRR- 90 125 Open-Loop Phase (°) 110 100 CMRR, PSRR vs. Ambient 1.0 Input Offset Voltage. Open-Loop Gain (dB) PSRR, CMRR (dB) FIGURE 2-1: 0 25 50 75 Ambient Temperature (°C) 0.8 5 4 3 2 1 0 -1 -2 -3 70 -4 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% 0% -5 Percentage of Occurrences Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, RL = 100 kΩ to VDD/2 and CL = 60 pF. Input Bias Current (nA) FIGURE 2-6: Input Bias Current at +125°C. © 2005 Microchip Technology Inc. MCP6241/2/4 Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, RL = 100 kΩ to VDD/2 and CL = 60 pF. FIGURE 2-7: vs. Frequency. Input Noise Voltage Density FIGURE 2-10: 12 10 8 6 4 2 0 Input Offset Voltage Drift. 700 VDD = 1.8V 200 100 0 TA = -40°C TA = +25°C TA = +85°C TA = +125°C -100 -200 Input Offset Voltage (µV) Input Offset Voltage (µV) -2 Input Offset Voltage Drift (µV/°C) 300 VCM = VSS 650 600 550 500 450 400 VDD = 5.5V VDD = 1.8V 350 300 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 -300 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Output Voltage (V) Common Mode Input Voltage (V) 400 VDD = 5.5V 300 200 100 TA = -40°C TA = +25°C TA = +85°C TA = +125°C 0 -100 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 -200 Common Mode Input Voltage (V) FIGURE 2-9: Input Offset Voltage vs. Common Mode Input Voltage at VDD = 5.5V. © 2005 Microchip Technology Inc. FIGURE 2-11: Output Voltage. Short Circuit Current (mA) FIGURE 2-8: Input Offset Voltage vs. Common Mode Input Voltage at VDD = 1.8V. Input Offset Voltage (µV) -4 -12 10 0.1 1 10 100 1k 10k 100k 1.E-01 1.E+0 1.E+0 1.E+0 1.E+0 1.E+0 1.E+0 Frequency 0 1 2 (Hz) 3 4 5 -6 100 628 Samples VCM = VSS TA = -40°C to +125°C -8 1,000 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% 0% -10 Percentage of Occurrences Input Noise Voltage Density (nV/Hz) 10,000 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 Input Offset Voltage vs. +ISC TA = +125°C TA = +85°C TA = +25°C TA = -40°C -ISC 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Power Supply Voltage (V) FIGURE 2-12: Output Short-Circuit Current vs. Ambient Temperature. DS21882C-page 5 MCP6241/2/4 Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, RL = 100 kΩ to VDD/2 and CL = 60 pF. 0.50 Slew Rate (V/µs) 0.40 Falling Edge 0.35 0.30 0.25 0.20 VDD = 1.8V 0.15 Rising Edge 0.10 -50 -25 0 25 50 75 100 Ambient Temperature (°C) FIGURE 2-13: Temperature. 125 Time (1 µs/div) Slew Rate vs. Ambient FIGURE 2-16: Pulse Response. 1,000 VDD = 5.0V G = +1 V/V 4.5 100 VDD – VOH VOL – VSS 10 1 10µ 1.E-02 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 100µ 1m 1.E-01 1.E+00 Output Current Magnitude (A) 10m 1.E+01 FIGURE 2-14: Output Voltage Headroom vs. Output Current Magnitude. 0.0 Time (10 µs/div) FIGURE 2-17: Pulse Response. 80 10 70 Quiescent Current per Amplifier (µA) Max. Output Voltage Swing (VP-P) Small-Signal, Non-Inverting 5.0 Output Voltage (V) Output Voltage Headroom (mV) G = +1 V/V RL = 10 k: Output Voltage (10 mV/div) VDD = 5.5V 0.45 VDD = 5.5V 1 VDD = 1.8V 0.1 1k 1.E+03 VCM = 0.9VDD 60 50 40 30 20 10 TA = +125°C TA = +85°C TA = +25°C TA = -40°C 0 10k 100k 1.E+04 1.E+05 Frequency (Hz) 1M 1.E+06 FIGURE 2-15: Maximum Output Voltage Swing vs. Frequency. DS21882C-page 6 Large-Signal, Non-Inverting 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Power Supply Voltage (V) FIGURE 2-18: Quiescent Current vs. Power Supply Voltage. © 2005 Microchip Technology Inc. MCP6241/2/4 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 MCP6241 (PDIP, SOIC, MSOP) MCP6241 (SOT-23-5) MCP6241R (SOT-23-5) MCP6241U (SOT-23-5) Symbol 6 1 1 4 VOUT Analog Output 2 4 4 3 VIN– Inverting Input 3 3 3 1 VIN+ Non-inverting Input 7 5 2 5 VDD Positive Power Supply 4 2 5 2 VSS Negative Power Supply 1, 5, 8 — — — NC No Internal Connection TABLE 3-2: 3.1 PIN FUNCTION TABLE FOR DUAL AND QUAD OP AMPS MCP6242 MCP6244 Symbol 1 1 VOUTA Analog Output (op amp A) 2 2 VINA– Inverting Input (op amp A) 3 3 VINA+ 8 4 VDD 5 5 VINB+ Non-inverting Input (op amp B) 6 6 VINB– Inverting Input (op amp B) 7 7 VOUTB Analog Output (op amp B) — 8 VOUTC Analog Output (op amp C) Description Non-inverting Input (op amp A) Positive Power Supply — 9 VINC– Inverting Input (op amp C) — 10 VINC+ Non-inverting Input (op amp C) 4 11 VSS — 12 VIND+ Non-inverting Input (op amp D) — 13 VIND– Inverting Input (op amp D) — 14 VOUTD Analog Output (op amp D) Analog Outputs The output pins are low-impedance voltage sources. 3.2 Description Analog Inputs The non-inverting and inverting inputs are highimpedance CMOS inputs with low bias currents. © 2005 Microchip Technology Inc. Negative Power Supply 3.3 Power Supply (VSS and VDD) The positive power supply (VDD) is 1.8V 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 can share a bulk capacitor (typically 1 µF to 100 µF) with other nearby analog parts; it needs to be within 100 mm of the VDD pin. DS21882C-page 7 MCP6241/2/4 4.0 APPLICATION INFORMATION – The MCP6241/2/4 family of op amps is manufactured using Microchip’s state-of-the-art CMOS process and is specifically designed for low-power and generalpurpose applications. The low supply voltage, low quiescent current and wide bandwidth makes the MCP6241/2/4 ideal for battery-powered applications. 4.1 RIN VIN VOUT ( Maximum expected VIN ) – V DD RIN ≥ ------------------------------------------------------------------------------2 mA Rail-to-Rail Inputs The MCP6241/2/4 op amps are designed to prevent phase reversal when the input pins exceed the supply voltages. Figure 4-1 shows the input voltage exceeding the supply voltage without any phase reversal. MCP624X + V SS – ( Minimum expected V IN ) R IN ≥ ---------------------------------------------------------------------------2 mA FIGURE 4-2: Resistor (RIN). Input Current-Limiting Input, Output Voltage (V) 6 VOUT 5 4 VDD = 5.0V G = +2 V/V VIN 3 2 4.2 Rail-to-Rail Output The output voltage range of the MCP6241/2/4 op amps is VDD – 35 mV (max.) and VSS + 35 mV (min.) when RL = 10 kΩ is connected to VDD/2 and VDD = 5.5V. Refer to Figure 2-14 for more information. 1 4.3 0 Driving large capacitive loads can cause stability problems for voltage-feedback op amps. As the load capacitance increases, the feedback loop’s phase margin decreases and the closed-loop bandwidth is reduced. This produces gain peaking in the frequency response, with overshoot and ringing in the step response. A unity-gain buffer (G = +1) is the most sensitive to capacitive loads, but all gains show the same general behavior. -1 Time (1 ms/div) FIGURE 4-1: Phase Reversal. The MCP6241/2/4 Show No The input stage of the MCP6241/2/4 op amps use two differential input stages in parallel. One operates at low common mode input voltage (VCM) and the other at high VCM. With this topology, the device operates with VCM up to 300 mV above VDD and 300 mV below VSS. The Input Offset Voltage is measured at VCM = VSS – 300 mV and VDD + 300 mV to ensure proper operation. Input voltages that exceed the input voltage range (VSS – 0.3V to VDD + 0.3V at 25°C) can cause excessive current to flow into or out of the input pins. Current beyond ±2 mA can cause reliability problems. Applications that exceed this rating must be externally limited with a resistor, as shown in Figure 4-2. Capacitive Loads When driving large capacitive loads with these op amps (e.g., > 70 pF when G = +1), a small series resistor at the output (RISO in Figure 4-3) improves the feedback loop’s phase margin (stability) by making the output load resistive at higher frequencies. The bandwidth will be generally lower than the bandwidth with no capacitive load. – VIN MCP624X + RISO VOUT CL FIGURE 4-3: Output resistor, RISO stabilizes large capacitive loads. Figure 4-4 gives recommended RISO values for different capacitive loads and gains. The x-axis is the normalized load capacitance (CL/GN), where GN is the circuit’s noise gain. For non-inverting gains, GN and the signal gain are equal. For inverting gains, GN is 1 + |Signal Gain| (e.g., –1 V/V gives GN = +2 V/V). DS21882C-page 8 © 2005 Microchip Technology Inc. MCP6241/2/4 4.6 Recommended RISO (:) 1.E+04 10k In applications where low input bias current is critical, PCB (printed circuit board) surface leakage effects need to be considered. Surface leakage is caused by humidity, dust or other contamination on the board. Under low humidity conditions, a typical resistance between nearby traces is 1012Ω. A 5V difference would cause 5 pA of current to flow, which is greater than the MCP6241/2/4 family’s bias current at 25°C (1 pA, typ.). 1k 1.E+03 GN = +1 V/V GN t +2 V/V 100 1.E+02 10p 100p 1n 10n 1.E+01 1.E+02 1.E+03 1.E+04 Normalized Load Capacitance; CL/GN (F) FIGURE 4-4: Recommended RISO Values for Capacitive Loads. The easiest way to reduce surface leakage is to use a guard ring around sensitive pins (or traces). The guard ring is biased at the same voltage as the sensitive pin. An example of this type of layout is shown in Figure 4-6. VIN- After selecting RISO for your circuit, double-check the resulting frequency response peaking and step response overshoot. Evaluation on the bench and simulations with the MCP6241/2/4 SPICE macro model are very helpful. Modify RISO’s value until the response is reasonable. 4.4 VIN+ VSS Supply Bypass With this op amp, the power supply pin (VDD for single-supply) should have a local bypass capacitor (i.e., 0.01 µF to 0.1 µF) within 2 mm for good highfrequency performance. It can use a bulk capacitor (i.e., 1 µF or larger) within 100 mm to provide large, slow currents. This bulk capacitor can be shared with other nearby analog parts. 4.5 PCB Surface Leakage Guard Ring FIGURE 4-6: for Inverting Gain. 1. Unused Op Amps An unused op amp in a quad package (MCP6244) should be configured as shown in Figure 4-5. Both circuits prevent the output from toggling and causing crosstalk. Circuit A can use any reference voltage between the supplies, provides a buffered DC voltage, and minimizes the supply current draw of the unused op amp. Circuit B minimizes the number of components, but may draw a little more supply current for the unused op amp. ¼ MCP6244 (A) VDD ¼ MCP6244 (B) 2. Example Guard Ring Layout Non-inverting Gain and Unity-Gain Buffer: a. Connect the non-inverting pin (VIN+) to the input with a wire that does not touch the PCB surface. b. Connect the guard ring to the inverting input pin (VIN–). This biases the guard ring to the common mode input voltage. Inverting Gain and Transimpedance Amplifiers (convert current to voltage, such as photo detectors): a. Connect the guard ring to the non-inverting input pin (VIN+). This biases the guard ring to the same reference voltage as the op amp (e.g., VDD/2 or ground). b. Connect the inverting pin (VIN–) to the input with a wire that does not touch the PCB surface. VDD VDD FIGURE 4-5: Unused Op Amps. © 2005 Microchip Technology Inc. DS21882C-page 9 MCP6241/2/4 4.7 4.7.2 Application Circuits 4.7.1 MATCHING THE IMPEDANCE AT THE INPUTS To minimize the effect of offset voltage in an amplifier circuit, the impedances at the inverting and noninverting inputs need to be matched. This is done by choosing the circuit resistor values so that the total resistance at each input is the same. Figure 4-7 shows a summing amplifier circuit. COMPENSATING FOR THE PARASITIC CAPACITANCE In analog circuit design, the PCB parasitic capacitance can compromise the circuit behavior; Figure 4-8 shows a typical scenario. If the input of an amplifier sees parasitic capacitance of several picofarad (CPARA, which includes the common mode capacitance of 6 pF, typical) and large RF and RG , the frequency response of the circuit will include a zero. This parasitic zero introduces gain peaking and can cause circuit instability. RG2 VIN2 VAC RG1 VIN1 + MCP624X – RF VDD – RX MCP624X VOUT RG RF CPARA CF VOUT VDC + RY RZ FIGURE 4-7: Summing Amplifier Circuit. To match the inputs, set all voltage sources to ground and calculate the total resistance at the input nodes. In this summing amplifier circuit, the resistance at the inverting input is calculated by setting VIN1, VIN2 and VOUT to ground. In this case, RG1, RG2 and RF are in parallel. The total resistance at the inverting input is: 1 R VIN – = --------------------------------------------1 1 1 ⎛ ----------------- ------⎞ ⎝ R G1 + R G2 + RF⎠ RG C F = CPARA • ------RF FIGURE 4-8: Effect of Parasitic Capacitance at the Input. One solution is to use smaller resistor values to push the zero to a higher frequency. Another solution is to compensate by introducing a pole at the point at which the zero occurs. This can be done by adding CF in parallel with the feedback resistor (RF). CF needs to be selected so that the ratio CPARA:CF is equal to the ratio of RF:RG . Where: RVIN– = total resistance at the inverting input At the non-inverting input, VDD is the only voltage source. When VDD is set to ground, both RX and RY are in parallel. The total resistance at the non-inverting input is: 1 R VIN + = ------------------------- + R Z 1 1 ⎛ -----+ ------⎞ ⎝ RX RY⎠ Where: RVIN+ = total resistance at the inverting input To minimize offset voltage and increase circuit accuracy, the resistor values need to meet the condition: R VIN + = R VIN – DS21882C-page 10 © 2005 Microchip Technology Inc. MCP6241/2/4 5.0 DESIGN TOOLS Microchip provides the basic design tools needed for the MCP6241/2/4 family of op amps. 5.1 SPICE Macro Model The latest SPICE macro model for the MCP6241/2/4 op amps is available on our web site at www.microchip.com. This model is intended to be an initial design tool that works well in the op amp’s linear region of operation at room temperature. See the macro model file for information on its capabilities. Bench testing is a very important part of any design and cannot be replaced with simulations. Also, simulation results using this macro model need to be validated by comparing them to the data sheet specifications and characteristic curves. 5.2 FilterLab® Software Microchip’s FilterLab software is an innovative tool that simplifies analog active-filter (using op amps) design. Available at no cost from our web site at www.microchip.com, the FilterLab design tool provides full schematic diagrams of the filter circuit with component values. It also outputs the filter circuit in SPICE format, which can be used with the macro model to simulate actual filter performance. © 2005 Microchip Technology Inc. DS21882C-page 11 MCP6241/2/4 6.0 PACKAGING INFORMATION 6.1 Package Marking Information 5-Lead SC-70 (MCP6241U Only) XXN (Front) YWW (Back) Example: AT2 (Front) 546 (Back) XXNN OR Example: 5-Lead SOT-23 4 5 Device XXNN 1 2 3 BQNN MCP6241R BRNN MCP6241U BSNN Applies to 5-Lead SOT-23. 4 5 BQ25 1 2 3 Example: XXXXXX 6242E YWWNNN 546256 8-Lead PDIP (300 mil) XXXXXXXX XXXXXNNN YYWW XXXXXXXX XXXXYYWW NNN Legend: XX...X Y YY WW NNN e3 * Example: MCP6242 3 E/P e^^256 0546 8-Lead SOIC (150 mil) DS21882C-page 12 Code MCP6241 Note: 8-Lead MSOP Note: AT25 OR Example: MCP6242E e3 0546 SN^^ 256 Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2005 Microchip Technology Inc. MCP6241/2/4 Package Marking Information (Continued) 14-Lead PDIP (300 mil) (MCP6244) Example: XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 14-Lead SOIC (150 mil) (MCP6244) MCP6244 e3 E/P^^ 0546256 Example: MCP6244 e3 E/SL^^ 0546256 XXXXXXXXXX XXXXXXXXXX YYWWNNN 14-Lead TSSOP (MCP6244) Example: XXXXXXXX YYWW 6244E 0546 NNN 256 © 2005 Microchip Technology Inc. DS21882C-page 13 MCP6241/2/4 5-Lead Plastic Small Outline Transistor Package (LT) (SC-70) E E1 D p B n 1 Q1 A2 c A A1 L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Top of Molded Pkg to Lead Shoulder Lead Thickness Lead Width A A2 A1 E E1 D L Q1 c B MIN .031 .031 .000 .071 .045 .071 .004 .004 .004 .006 INCHES NOM 5 .026 (BSC) MAX .043 .039 .004 .094 .053 .087 .012 .016 .007 .012 MILLIMETERS* NOM 5 0.65 (BSC) 0.80 0.80 0.00 1.80 1.15 1.80 0.10 0.10 0.10 0.15 MIN MAX 1.10 1.00 0.10 2.40 1.35 2.20 0.30 0.40 0.18 0.30 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. JEITA (EIAJ) Standard: SC-70 Drawing No. C04-061 DS21882C-page 14 © 2005 Microchip Technology Inc. MCP6241/2/4 5-Lead Plastic Small Outline Transistor (OT) (SOT23) E E1 p B p1 n D 1 α c A L β Units Dimension Limits n p MIN φ A2 A1 INCHES* NOM 5 .038 .075 .046 .043 .003 .110 .064 .116 .018 5 .006 .017 5 5 MAX MIN MILLIMETERS NOM 5 0.95 1.90 1.18 1.10 0.08 2.80 1.63 2.95 0.45 5 0.15 0.43 5 5 Number of Pins Pitch p1 Outside lead pitch (basic) Overall Height A .035 .057 0.90 Molded Package Thickness A2 .035 .051 0.90 Standoff A1 .000 .006 0.00 Overall Width E .102 .118 2.60 Molded Package Width E1 .059 .069 1.50 Overall Length D .110 .122 2.80 Foot Length L .014 .022 0.35 φ Foot Angle 0 10 0 c Lead Thickness .004 .008 0.09 Lead Width B .014 .020 0.35 α Mold Draft Angle Top 0 10 0 β Mold Draft Angle Bottom 0 10 0 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005" (0.127mm) per side. MAX 1.45 1.30 0.15 3.00 1.75 3.10 0.55 10 0.20 0.50 10 10 EIAJ Equivalent: SC-74A Drawing No. C04-091 © 2005 Microchip Technology Inc. DS21882C-page 15 MCP6241/2/4 8-Lead Plastic Micro Small Outline Package (MS) (MSOP) E E1 p D 2 B n 1 α A2 A c φ A1 (F) L β Units Dimension Limits n p MIN INCHES NOM 8 .026 BSC .033 .193 TYP. .118 BSC .118 BSC .024 .037 REF .006 .012 - MAX MILLIMETERS* NOM 8 0.65 BSC 0.75 0.85 0.00 4.90 BSC 3.00 BSC 3.00 BSC 0.40 0.60 0.95 REF 0° 0.08 0.22 5° 5° - MIN Number of Pins Pitch A .043 Overall Height A2 .030 .037 Molded Package Thickness .000 .006 A1 Standoff E Overall Width E1 Molded Package Width D Overall Length L .016 .031 Foot Length Footprint (Reference) F φ Foot Angle 0° 8° c Lead Thickness .003 .009 .009 .016 Lead Width B α Mold Draft Angle Top 5° 15° β 5° 15° Mold Draft Angle Bottom *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254mm) per side. MAX 1.10 0.95 0.15 0.80 8° 0.23 0.40 15° 15° JEDEC Equivalent: MO-187 Drawing No. C04-111 DS21882C-page 16 © 2005 Microchip Technology Inc. MCP6241/2/4 8-Lead Plastic Dual In-line (P) – 300 mil (PDIP) E1 D 2 n 1 α E A2 A L c A1 β B1 p eB B Units Dimension Limits n p Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width Lower Lead Width Overall Row Spacing Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic § A A2 A1 E E1 D L c B1 B eB α β MIN .140 .115 .015 .300 .240 .360 .125 .008 .045 .014 .310 5 5 INCHES* NOM MAX 8 .100 .155 .130 .170 .145 .313 .250 .373 .130 .012 .058 .018 .370 10 10 .325 .260 .385 .135 .015 .070 .022 .430 15 15 MILLIMETERS NOM 8 2.54 3.56 3.94 2.92 3.30 0.38 7.62 7.94 6.10 6.35 9.14 9.46 3.18 3.30 0.20 0.29 1.14 1.46 0.36 0.46 7.87 9.40 5 10 5 10 MIN MAX 4.32 3.68 8.26 6.60 9.78 3.43 0.38 1.78 0.56 10.92 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-018 © 2005 Microchip Technology Inc. DS21882C-page 17 MCP6241/2/4 8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC) E E1 p D 2 B n 1 h α 45° c A2 A φ β L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic A A2 A1 E E1 D h L φ c B α β MIN .053 .052 .004 .228 .146 .189 .010 .019 0 .008 .013 0 0 A1 INCHES* NOM 8 .050 .061 .056 .007 .237 .154 .193 .015 .025 4 .009 .017 12 12 MAX .069 .061 .010 .244 .157 .197 .020 .030 8 .010 .020 15 15 MILLIMETERS NOM 8 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 6.02 3.71 3.91 4.80 4.90 0.25 0.38 0.48 0.62 0 4 0.20 0.23 0.33 0.42 0 12 0 12 MIN MAX 1.75 1.55 0.25 6.20 3.99 5.00 0.51 0.76 8 0.25 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057 DS21882C-page 18 © 2005 Microchip Technology Inc. MCP6241/2/4 14-Lead Plastic Dual In-line (P) – 300 mil (PDIP) E1 D 2 n 1 α E A2 A L c A1 β B1 eB p B Units Dimension Limits n p MIN INCHES* NOM 14 .100 .155 .130 MAX MILLIMETERS NOM 14 2.54 3.56 3.94 2.92 3.30 0.38 7.62 7.94 6.10 6.35 18.80 19.05 3.18 3.30 0.20 0.29 1.14 1.46 0.36 0.46 7.87 9.40 5 10 5 10 MIN Number of Pins Pitch Top to Seating Plane A .140 .170 Molded Package Thickness A2 .115 .145 Base to Seating Plane A1 .015 Shoulder to Shoulder Width E .300 .313 .325 Molded Package Width .240 .250 .260 E1 Overall Length D .740 .750 .760 Tip to Seating Plane L .125 .130 .135 c Lead Thickness .008 .012 .015 Upper Lead Width B1 .045 .058 .070 Lower Lead Width B .014 .018 .022 Overall Row Spacing § eB .310 .370 .430 α Mold Draft Angle Top 5 10 15 β Mold Draft Angle Bottom 5 10 15 * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-005 © 2005 Microchip Technology Inc. MAX 4.32 3.68 8.26 6.60 19.30 3.43 0.38 1.78 0.56 10.92 15 15 DS21882C-page 19 MCP6241/2/4 14-Lead Plastic Small Outline (SL) – Narrow, 150 mil (SOIC) E E1 p D 2 B n 1 α h 45° c A2 A φ A1 L β Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic A A2 A1 E E1 D h L φ c B α β MIN .053 .052 .004 .228 .150 .337 .010 .016 0 .008 .014 0 0 INCHES* NOM 14 .050 .061 .056 .007 .236 .154 .342 .015 .033 4 .009 .017 12 12 MAX .069 .061 .010 .244 .157 .347 .020 .050 8 .010 .020 15 15 MILLIMETERS NOM 14 1.27 1.35 1.55 1.32 1.42 0.10 0.18 5.79 5.99 3.81 3.90 8.56 8.69 0.25 0.38 0.41 0.84 0 4 0.20 0.23 0.36 0.42 0 12 0 12 MIN MAX 1.75 1.55 0.25 6.20 3.99 8.81 0.51 1.27 8 0.25 0.51 15 15 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-065 DS21882C-page 20 © 2005 Microchip Technology Inc. MCP6241/2/4 14-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm (TSSOP) E E1 p D 2 1 n B α A c φ β A1 L Units Dimension Limits n p Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Molded Package Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic A A2 A1 E E1 D L φ c B1 α β MIN .033 .002 .246 .169 .193 .020 0 .004 .007 0 0 INCHES NOM 14 .026 .035 .004 .251 .173 .197 .024 4 .006 .010 5 5 A2 MAX .043 .037 .006 .256 .177 .201 .028 8 .008 .012 10 10 MILLIMETERS* NOM MAX 14 0.65 1.10 0.85 0.90 0.95 0.05 0.10 0.15 6.25 6.38 6.50 4.30 4.40 4.50 4.90 5.00 5.10 0.50 0.60 0.70 0 4 8 0.09 0.15 0.20 0.19 0.25 0.30 0 5 10 0 5 10 MIN Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005” (0.127mm) per side. JEDEC Equivalent: MO-153 Drawing No. C04-087 © 2005 Microchip Technology Inc. DS21882C-page 21 MCP6241/2/4 NOTES: DS21882C-page 22 © 2005 Microchip Technology Inc. MCP6241/2/4 APPENDIX A: REVISION HISTORY Revision C (March 2005) The following is the list of modifications: 1. 2. 3. 4. 5. 6. Added the MCP6244 quad op amp. Re-compensated parts. Specifications that change are: Gain Bandwidth Product (BWP) and Phase Margin (PM) in AC Electrical Characteristics table. Corrected plots in Section 2.0 “Typical Performance Curves”. Added Section 3.0 “Pin Descriptions”. Added new SC-70 package markings. Added PDIP-14, SOIC-14, and TSSOP-14 packages and corrected package marking information (Section 6.0 “Packaging Information”). Added Appendix A: “Revision History”. Revision B (August 2004) Revision A (March 2004) • Original Release of this Document. © 2005 Microchip Technology Inc. DS21882C-page 23 MCP6241/2/4 NOTES: DS21882C-page 24 © 2005 Microchip Technology Inc. MCP6241/2/4 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. X Device Tape and Reel and/or Alternate Pinout Device: -X /XX Temperature Package Range MCP6241: MCP6241T: MCP6241RT: MCP6241UT: MCP6242: MCP6242T: MCP6244: MCP6244T: Single Op Amp (MSOP, PDIP, SOIC) Single Op Amp (Tape and Reel) (MSOP, SOIC, SOT-23) Single Op Amp (Tape and Reel) (SOT-23) Single Op Amp (Tape and Reel) (SC-70, SOT-23) Dual Op Amp Dual Op Amp (Tape and Reel) (MSOP, SOIC) Quad Op Amp Quad Op Amp (Tape and Reel) (SOIC, TSSOP) Temperature Range: E = -40°C to +125°C Package: LT MS P OT = = = = Plastic Package (SC-70), 5-lead (MCP6241U only) Plastic Micro Small Outline (MSOP), 8-lead Plastic DIP (300 mil Body), 8-lead, 14-lead Plastic Small Outline Transistor (SOT-23), 5-lead (MCP6241, MCP6241R, MCP6241U) SN = Plastic SOIC (150 mil Body), 8-lead SL = Plastic SOIC (150 mil Body), 14-lead ST = Plastic TSSOP (4.4 mil Body), 14-lead © 2005 Microchip Technology Inc. Examples: a) b) c) d) e) f) MCP6241-E/SN: Extended Temp., 8LD SOIC package. MCP6241-E/MS: Extended Temp., 8LD MSOP package. MCP6241-E/P: Extended Temp., 8LD PDIP package. MCP6241RT-E/OT: Tape and Reel, Extended Temp., 5LD SOT-23 package MCP6241UT-E/OT: Tape and Reel, Extended Temp., 5LD SOT-23 package. MCP6241UT-E/LT: Tape and Reel, Extended Temp., 5LD SC-70 package. a) MCP6242-E/SN: b) MCP6242-E/MS: c) MCP6242-E/P: d) MCP6242T-E/SN: a) MCP6244-E/P: b) MCP6244-E/SL: c) MCP6244-E/ST: d) MCP6244T-E/SL: e) MCP6244T-E/ST: Extended Temp., 8LD SOIC package. Extended Temp., 8LD MSOP package. Extended Temp., 8LD PDIP package. Tape and Reel, Extended Temp., 8LD SOIC package. Extended Temp., 14LD PDIP package. Extended Temp., 14LD SOIC package. Extended Temp., 14LD TSSOP package. Tape and Reel, Extended Temp., 14LD SOIC package. Tape and Reel, Extended Temp., 14LD TSSOP package. DS21882C-page 25 MCP6241/2/4 NOTES: DS21882C-page 26 © 2005 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. © 2005 Microchip Technology Inc. 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