Datasheet MCP6281, MCP6281R, MCP6282, MCP6283, MCP6284, MCP6285 (Microchip) - 5

MCP6281/1R/2/3/4/5 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.
Note:
Unless otherwise indicated, T ≈ A = +25°C, VDD = +2.2V to +6.0V, VSS = GND, VCM = VDD/2, VOUT VDD/2, VL = VDD/2, RL = 10 kΩ to VL, CL = 60 pF and CS is tied low.
14% 30% 832 Samples 832 Samples 12% VCM = VSS V nces 25% CM = VSS nces re TA = -40°C to +125°C 10% re 20% ccur 8% ccur 15% 6% 4% 10% rcentage of O 2% e rcentage of O 5% P e P 0% 0% -2.8 -2.4 -2.0 -1.6 -1.2 -0.8 -0.4 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 -10 -8 -6 -4 -2 0 2 4 6 8 10 Input Offset Voltage (mV) Input Offset Voltage Drift (µV/°C) FIGURE 2-1:
Input Offset Voltage.
FIGURE 2-4:
Input Offset Voltage Drift.
25% 35% 210 Samples 210 Samples 30% TA = +125°C ces TA = +85°C 20% ces 25% rren rren 15% 20% f Occu f Occu 15% o 10% e o 10% tag n tage 5% 5% Perce 0% Percen 0% 0 0 0 0 0 0 0 0 0 0 0 20 40 80 0 10 20 30 40 50 60 70 80 90 100 120 160 200 240 280 320 360 Input Bias Current (pA) Input Bias Current (pA) FIGURE 2-2:
Input Bias Current at
FIGURE 2-5:
Input Bias Current at TA = +85 °C. TA = +125 °C.
300 300 V V DD = 2.2V DD = 5.5V ) 250 V 250 V) (µ (µ 200 e 200 e g g a 150 lt ta 150 o 100 100 t V e et Vol s fs 50 50 TA = +125°C TA = +125°C t Of 0 T t Off 0 A = +85°C TA = +85°C pu T pu T -50 A = +25°C A = +25°C In -50 In TA = -40°C TA = -40°C -100 -100 0 5 0 5 0 5 0 5 0 5 0 5 0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 -0.5 0. 0. 1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. Common Mode Input Voltage (V) Common Mode Input Voltage (V) FIGURE 2-3:
Input Offset Voltage vs.
FIGURE 2-6:
Input Offset Voltage vs. Common Mode Input Voltage at VDD = 2.2V. Common Mode Input Voltage at VDD = 5.5V. © 2008 Microchip Technology Inc. DS21811E-page 5 Document Outline 1.0 Electrical Characteristics FIGURE 1-1: Timing Diagram for the Chip Select (CS) pin on the MCP6283 and MCP6285. 1.1 Test Circuits FIGURE 1-2: AC and DC Test Circuit for Most Non-Inverting Gain Conditions. FIGURE 1-3: AC and DC Test Circuit for Most Inverting Gain Conditions. 2.0 Typical Performance Curves FIGURE 2-1: Input Offset Voltage. FIGURE 2-2: Input Bias Current at TA = +85 ˚C. FIGURE 2-3: Input Offset Voltage vs. Common Mode Input Voltage at VDD = 2.2V. FIGURE 2-4: Input Offset Voltage Drift. FIGURE 2-5: Input Bias Current at TA = +125 ˚C. FIGURE 2-6: Input Offset Voltage vs. Common Mode Input Voltage at VDD = 5.5V. FIGURE 2-7: Input Offset Voltage vs. Output Voltage. FIGURE 2-8: CMRR, PSRR vs. Frequency. FIGURE 2-9: Input Bias, Offset Currents vs. Common Mode Input Voltage at TA = +85˚C. FIGURE 2-10: Input Bias, Input Offset Currents vs. Ambient Temperature. FIGURE 2-11: CMRR, PSRR vs. Ambient Temperature. FIGURE 2-12: Input Bias, Offset Currents vs. Common Mode Input Voltage at TA = +125˚C. FIGURE 2-13: Quiescent Current vs. Power Supply Voltage. FIGURE 2-14: Open-Loop Gain, Phase vs. Frequency. FIGURE 2-15: Maximum Output Voltage Swing vs. Frequency. FIGURE 2-16: Output Voltage Headroom vs. Output Current Magnitude. FIGURE 2-17: Gain Bandwidth Product, Phase Margin vs. Ambient Temperature. FIGURE 2-18: Slew Rate vs. Ambient Temperature. FIGURE 2-19: Input Noise Voltage Density vs. Frequency. FIGURE 2-20: Output Short Circuit Current vs. Power Supply Voltage. FIGURE 2-21: Quiescent Current vs. Chip Select (CS) Voltage at VDD = 2.2V (MCP6283 and MCP6285 only). FIGURE 2-22: Input Noise Voltage Density vs. Common Mode Input Voltage at 1 kHz. FIGURE 2-23: Channel-to-Channel Separation vs. Frequency (MCP6282 and MCP6284 only). FIGURE 2-24: Quiescent Current vs. Chip Select (CS) Voltage at VDD = 5.5V (MCP6283 and MCP6285 only). FIGURE 2-25: Large-Signal, Non-inverting Pulse Response. FIGURE 2-26: Small-Signal, Non-inverting Pulse Response. FIGURE 2-27: Chip Select (CS) to Amplifier Output Response Time at VDD = 2.2V (MCP6283 and MCP6285 only). FIGURE 2-28: Large-Signal, Inverting Pulse Response. FIGURE 2-29: Small-Signal, Inverting Pulse Response. FIGURE 2-30: Chip Select (CS) to Amplifier Output Response Time at VDD = 5.5V (MCP6283 and MCP6285 only). FIGURE 2-31: Measured Input Current vs. Input Voltage (below VSS). FIGURE 2-32: The MCP6281/1R/2/3/4/5 Show No Phase Reversal. 3.0 Pin Descriptions 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 3.2 Analog Inputs 3.3 MCP6285’s VOUTA/VINB+ Pin 3.4 Chip Select Digital Input (CS) 3.5 Power Supply Pins 4.0 Application infoRmation 4.1 Rail-to-Rail Inputs FIGURE 4-1: Simplified Analog Input ESD Structures. FIGURE 4-2: Protecting the Analog Inputs. 4.2 Rail-to-Rail Output 4.3 Capacitive Loads FIGURE 4-3: Output Resistor, RISO stabilizes large capacitive loads. FIGURE 4-4: Recommended RISO Values for Capacitive Loads. 4.4 MCP628X Chip Select (CS) 4.5 Cascaded Dual Op Amps (MCP6285) FIGURE 4-5: Cascaded Gain Amplifier. 4.6 Supply Bypass 4.7 Unused Op Amps FIGURE 4-6: Unused Op Amps. 4.8 PCB Surface Leakage FIGURE 4-7: Example Guard Ring Layout for Inverting Gain. 4.9 Application Circuits FIGURE 4-8: Sallen-Key High-Pass Filter. FIGURE 4-9: Miller Integrator. FIGURE 4-10: Isolating the Load with a Buffer. FIGURE 4-11: Cascaded Gain Circuit Configuration. FIGURE 4-12: Difference Amplifier Circuit. FIGURE 4-13: Buffered Non-inverting Integrator with Chip Select. FIGURE 4-14: Integrator Circuit with Active Compensation. FIGURE 4-15: Second-Order Multiple Feedback Low-Pass Filter with an Extra Pole-Zero Pair. FIGURE 4-16: Second-Order Sallen-Key Low-Pass Filter with an Extra Pole-Zero Pair and Chip Select. FIGURE 4-17: Capacitorless Second-Order Low-Pass Filter with Chip Select. 5.0 Design AIDS 5.1 SPICE Macro Model 5.2 FilterLab® Software 5.3 Mindi™ Circuit Designer & Simulator 5.4 MAPS (Microchip Advanced Part Selector) 5.5 Analog Demonstration and Evaluation Boards 5.6 Application Notes 6.0 Packaging Information 6.1 Package Marking Information