Overview
The NCV21871SN2T1G is a zero-drift operational amplifier from onsemi, part of the NCS21871, NCS21872, and NCS21874 family. This device is distinguished by its extremely low offset voltage of 45 μV and a low offset drift of 0.4 μV/°C, making it ideal for high-precision measurements over both time and temperature. The NCV21871SN2T1G operates within a wide supply voltage range of 1.8 V to 5.5 V and is available in a space-saving SOT23-5 package. It is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
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 | |
| Quiescent Current | IQ | 20 | 40 | 45 | μA |
| Gain-Bandwidth Product | GBWP | 270 | 350 | kHz | |
| Operating Temperature Range | TA | -40 | 125 | °C | |
| Package Type | SOT23-5 |
Key Features
- Low offset voltage: 45 μV max
- Low offset drift: 0.4 μV/°C max
- Wide supply voltage range: 1.8 V to 5.5 V
- Low power consumption: 17 μA typical at 3.3 V
- Rail-to-rail input and output
- High common mode rejection ratio (CMRR): up to 127 dB
- AEC-Q100 qualified and PPAP capable for automotive applications
- Available in single, dual, and quad channel configurations
Applications
- Automotive systems
- Battery-powered and portable applications
- Sensor signal conditioning
- Low voltage current sensing
- Filter circuits and bridge circuits
- Medical instrumentation
- Industrial and consumer markets where high precision is required
Q & A
- What is the typical offset voltage of the NCV21871SN2T1G?
The typical offset voltage is 45 μV.
- What is the offset drift over temperature for the NCV21871SN2T1G?
The offset drift is as low as 0.4 μV/°C.
- What is the supply voltage range for the NCV21871SN2T1G?
The supply voltage range is from 1.8 V to 5.5 V.
- What is the typical quiescent current of the NCV21871SN2T1G at 3.3 V?
The typical quiescent current is 17 μA at 3.3 V.
- Is the NCV21871SN2T1G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable.
- What package types are available for the NCV21871SN2T1G?
The NCV21871SN2T1G is available in a SOT23-5 package.
- What is the gain-bandwidth product of the NCV21871SN2T1G?
The gain-bandwidth product is 350 kHz for single and quad channel configurations, and 270 kHz for dual channel configurations.
- What is the operating temperature range for the NCV21871SN2T1G?
The operating temperature range is from -40°C to 125°C.
- Does the NCV21871SN2T1G have rail-to-rail input and output capabilities?
Yes, it has rail-to-rail input and output capabilities.
- What are some common applications for the NCV21871SN2T1G?
Common applications include automotive systems, battery-powered devices, sensor signal conditioning, low voltage current sensing, and medical instrumentation.
