Overview
The NCS21871SN2T1G is a precision zero-drift operational amplifier from onsemi, part of the NCS21871 family. This device is renowned for its low offset voltage and minimal drift over temperature, making it ideal for high-precision applications. The NCS21871SN2T1G operates over a wide supply voltage range of 1.8 V to 5.5 V and is available in a space-saving SOT23-5 package. Its low power consumption and rail-to-rail input and output capabilities make it suitable for a variety of applications, including portable, industrial, automotive, medical, and consumer markets.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VS | 1.8 | 5.5 | V | |
| Offset Voltage | VOS | 6 | 45 | μV | |
| Offset Voltage Drift vs Temp | ΔVOS/ΔT | 0.1 | 0.4 | μV/°C | |
| Input Bias Current | IIB | ±60 | ±400 | pA | |
| Common Mode Rejection Ratio | CMRR | 102 | 118 | 127 | dB |
| Gain-Bandwidth Product | GBWP | 350 | kHz | ||
| Quiescent Current | IQ | 20 | 40 | 45 | μA |
| Operating Temperature Range | TA | -40 | 125 | °C |
Key Features
- Low offset voltage: 45 μV max
- Low offset drift: 0.4 μV/°C max
- Wide supply range: 1.8 V to 5.5 V
- Rail-to-rail input and output
- Low power consumption: 17 μA typical at 3.3 V
- Gain-bandwidth product: 350 kHz
- Available in single, dual, and quad packages
- AEC-Q100 qualified and PPAP capable for automotive applications
Applications
- Automotive
- Battery-powered and portable applications
- Sensor signal conditioning
- Low voltage current sensing
- Filter circuits
- Bridge circuits
- Medical instrumentation
Q & A
- What is the typical offset voltage of the NCS21871SN2T1G? The typical offset voltage is 45 μV.
- What is the maximum offset voltage drift over temperature? The maximum offset voltage drift is 0.4 μV/°C.
- What is the supply voltage range for the NCS21871SN2T1G? The supply voltage range is from 1.8 V to 5.5 V.
- What is the gain-bandwidth product of the NCS21871SN2T1G? The gain-bandwidth product is 350 kHz.
- Is the NCS21871SN2T1G suitable for automotive applications? Yes, it is AEC-Q100 qualified and PPAP capable.
- What are the typical operating temperatures for the NCS21871SN2T1G? The operating temperature range is from -40°C to 125°C.
- What is the quiescent current of the NCS21871SN2T1G at 3.3 V supply voltage? The quiescent current is typically 40 μA.
- Does the NCS21871SN2T1G have rail-to-rail input and output capabilities? Yes, it does.
- In what packages is the NCS21871SN2T1G available? It is available in single, dual, and quad packages.
- What are some common applications of the NCS21871SN2T1G? Common applications include sensor signal conditioning, low voltage current sensing, filter circuits, and medical instrumentation.
