Overview
The NCS20062DMR2G is a dual operational amplifier (Op Amp) from onsemi, designed for low-power and high-performance applications. This device is part of the NCS20061/2/4 family, which includes single, dual, and quad configurations. The NCS20062DMR2G operates with a Gain-Bandwidth Product (GBWP) of 3 MHz and consumes only 125 μA of current, making it suitable for battery-powered and power-sensitive designs. It is manufactured using onsemi's CMOS process, ensuring rail-to-rail input and output capabilities without phase reversal, even when the input pins exceed the supply voltages by up to 100 mV.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain-Bandwidth Product (GBWP) | 3 | MHz |
| Supply Current | 125 | μA |
| Input Bias Current | 1 | pA |
| Input Offset Voltage | 0.5 | mV |
| Common Mode Rejection Ratio (CMRR) | 80 | dB |
| Power Supply Rejection Ratio (PSRR) | 80 | dB |
| Output Voltage Swing | VDD - 25 mV to VSS + 25 mV | V |
| Maximum Output Current | 15 | mA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | MSOP-8 |
Key Features
- Rail-to-Rail Input and Output: The NCS20062DMR2G features rail-to-rail input and output capabilities, ensuring that the input pins can exceed the supply voltages by up to 100 mV without phase reversal.
- Low Power Consumption: With a supply current of only 125 μA, this Op Amp is ideal for battery-powered devices and low-power applications.
- High Input Impedance: The device has a high input impedance, making it suitable for interfacing with high-impedance sensors and other sources.
- ESD Protection: The NCS20062DMR2G includes internal ESD protection structures to protect the input stages from damage due to electrostatic discharge.
- Stability with Capacitive Loads: The Op Amp can drive capacitive loads up to 100 pF and can be stabilized with a small series resistor to improve phase margin.
Applications
- Active Filters: The NCS20062DMR2G can be used in active filter designs, such as second-order active low-pass filters, to provide a flat response in the sampled signal band and prevent aliasing.
- Buffer Amplifiers: It is suitable for use as a unity gain buffer to interface high-impedance sensors with low-impedance ADC inputs, ensuring fast settling times and minimal interference.
- General Purpose Amplification: The Op Amp can be used in various general-purpose amplification applications where low power consumption and high performance are required.
- PCB Design Considerations: The device requires careful PCB design to avoid high-frequency noise and ensure optimal performance, including dedicated ground planes, short copper traces, and separation of power and signal areas.
Q & A
- What is the Gain-Bandwidth Product (GBWP) of the NCS20062DMR2G?
The GBWP of the NCS20062DMR2G is 3 MHz.
- How much current does the NCS20062DMR2G consume?
The NCS20062DMR2G consumes 125 μA of current.
- What is the input bias current of the NCS20062DMR2G?
The input bias current is typically 1 pA.
- Can the NCS20062DMR2G drive capacitive loads?
Yes, it can drive capacitive loads up to 100 pF and can be stabilized with a small series resistor.
- What is the maximum output current of the NCS20062DMR2G?
The maximum output current is internally limited to 15 mA.
- How should unused operational amplifiers in a quad package be connected?
Unused Op Amps should be connected as 'buffering ground' to avoid unwanted oscillation, crosstalk, and increased current consumption.
- What are the recommended PCB design practices for the NCS20062DMR2G?
Recommended practices include using a dedicated ground plane, keeping copper traces short, separating high current paths from small signal traces, and keeping switching power supply blocks away from analog sensitive areas.
- What type of ESD protection does the NCS20062DMR2G have?
The device includes internal ESD protection structures tested according to JEDEC standards Js-001-2017 and Js-002-2014.
- How should the power supply pins be bypassed for optimal performance?
The power supply pins should be bypassed locally with a quality capacitor (e.g., 100 nF ceramic) and a bulk capacitor (e.g., 1 μF) for DC stability.
- What is the operating temperature range of the NCS20062DMR2G?
The operating temperature range is -40°C to 125°C.
