MCP6V51 45V, 2 MHz Zero-Drift Op Amp with EMI Filtering Features General Description High DC Precision: The Microchip Technology Inc. MCP6V51 operational amplifier employs dynamic offset correction for very -V Drift: 36 nV/C (max.) OS low offset and offset drift. The device has a gain -V : 15 V (max.) OS bandwidth product of 2 MHz (typical). It is unity-gain - Open-Loop Gain: 140 dB (min.) stable, has virtually no 1/f noise and excellent Power - PSRR: 134 dB (min.) Supply Rejection Ratio (PSRR) and Common Mode - CMRR: 135 dB (min.) Rejection Ratio (CMRR). The product operates with a Low Noise: single supply voltage that can range from 4.5V to 45V, (2.25V to 22.5V), while drawing 470 A (typical) of - 10.2 nV/ Hz at 1 kHz quiescent current. -E : 0.21 V , f = 0.1 Hz to 10 Hz ni P-P The MCP6V51 op amp is offered as a single-channel Low Power: amplifier and is designed using an advanced CMOS -I : 470 A/amplifier (typ.) Q process. - Wide Supply Voltage Range: 4.5V to 45V Easy to Use: Package Types - Input Range incl. Negative Rail - Rail-to-Rail Output - EMI Filtered Inputs MCP6V51 MCP6V51 - Gain Bandwidth Product: 2 MHz SOT-23-5 MSOP-8 - Slew Rate 1.2V/s NC 1 8 V V NC 1 5 OUT DD - Unity Gain Stable V 2 7 V DD V 2 IN SS Small Packages: 5-Lead SOT23, 8-Lead MSOP V + 3 6 V V + 3 4 V IN OUT IN IN Extended Temperature Range: -40C to +125C V NC 4 5 SS Typical Applications Industrial Instrumentation, PLC Process Control Power Control Loops Typical Application Circuit Sensor Conditioning Electronic Weight Scales 40V DD Medical Instrumentation Automotive Monitors Load Low-side Current Sensing 40V U DD 1 MCP6V51 Design Aids I L + Microchip Advanced Part Selector (MAPS) V OUT R - SHUNT Application Notes 0.05 R G R 100 F Related Parts 20 k MCP6V71/1U/2/4: Zero-Drift, 2 MHz, 1.8V to 5V MCP6V81/1U/2/4: Zero-Drift, 5 MHz, 1.8V to 5V C 8.2 nF F 2018 Microchip Technology Inc. DS20006136A-page 1MCP6V51 Figure 1 and Figure 2 show input offset voltage versus As seen in Figure 1 and Figure 2, the MCP6V51 op ambient temperature for different power supply amps have excellent performance across temperature. voltages. The input offset voltage temperature drift (TC ) shown 1 is well within the specified maximum values of 8 31 nV/C at V = 4.5V and 36 nV/C at V =45V. DD DD 22 Samples V = 4.5V 6 DD This performance supports applications with stringent 4 DC precision requirements. In many cases, it will not be necessary to correct for temperature effects (i.e., 2 calibrate) in a design. In the other cases, the correction 0 will be small. -2 -4 -6 -8 -50 -25 0 25 50 75 100 125 Ambient Temperature (C) FIGURE 1: Input Offset Voltage vs. Ambient Temperature with V =4.5V. DD 8 22 Samples V = 45V 6 DD 4 2 0 -2 -4 -6 -8 -50 -25 0 255075 100 125 Ambient Temperature (C) FIGURE 2: Input Offset Voltage vs. Ambient Temperature with V = 45V. DD DS20006136A-page 2 2018 Microchip Technology Inc. Input Offset Voltage (V) Input Offset Voltage (V)