Overview
The OA2NP22Q, part of the OA1NP, OA2NP, OA4NP series from STMicroelectronics, is a dual CMOS operational amplifier designed for low-power applications. It offers a typical power consumption of 580 nA per channel at 1.8 V supply voltage, making it highly efficient for battery-powered devices. The OA2NP22Q is unity gain stable, features rail-to-rail input and output, and operates within a supply voltage range of 1.5 V to 5.5 V. This operational amplifier is ideal for applications requiring accurate signal conditioning, particularly in wearable, fitness, healthcare, and medical instrumentation sectors.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (Vcc) | 1.5 | 5.5 | V | ||
| Input Offset Voltage (Vio) | -40 °C < T < 85 °C | -3 | 0.1 | 3 | mV |
| Input Bias Current (Iib) | -40 °C < T < 85 °C | 5 | 30 | pA | |
| Supply Current (ICC) per Channel | No load, Vout = Vcc/2 | 580 | 750 | 950 | nA |
| Gain Bandwidth Product (GBP) | RL = 1 MΩ, CL = 60 pF | 8 | kHz | ||
| Slew Rate (SR) | RL = 1 MΩ, CL = 60 pF | 3 | V/ms | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| ESD Protection | HBM | 2000 | V |
Key Features
- Low Power Consumption: Typical 580 nA per channel at 1.8 V supply voltage.
- Rail-to-Rail Input and Output: Allows for full signal swing from the supply rails.
- Unity Gain Stable: Ensures stable operation without additional compensation.
- High ESD Tolerance: Human Body Model (HBM) up to 2000 V.
- Low Input Bias Current: Maximum 5 pA at 25 °C.
- Wide Operating Temperature Range: From -40 °C to +85 °C.
- Fast Desaturation: Quick recovery from saturation.
- Comparator Mode Capability: Can be used in comparator configurations.
Applications
- Wearable Devices: Ideal for fitness trackers, smartwatches, and other wearable electronics.
- Healthcare and Medical Instrumentation: Suitable for medical devices requiring low power and accurate signal conditioning.
- Sensor Signal Conditioning: Used for conditioning signals from high impedance sensors.
- Low Power Systems: Efficient for battery-powered systems where power consumption is critical.
Q & A
- What is the typical supply current of the OA2NP22Q?
The typical supply current is 580 nA per channel at 1.8 V supply voltage.
- What is the operating temperature range of the OA2NP22Q?
The operating temperature range is from -40 °C to +85 °C.
- What is the gain bandwidth product of the OA2NP22Q?
The gain bandwidth product is typically 8 kHz.
- Is the OA2NP22Q suitable for wearable devices?
- What is the input bias current of the OA2NP22Q?
The maximum input bias current is 5 pA at 25 °C.
- Can the OA2NP22Q be used in comparator mode?
- What is the ESD protection level of the OA2NP22Q?
The OA2NP22Q has an ESD protection level of up to 2000 V HBM.
- What are the package options for the OA2NP22Q?
The OA2NP22Q is available in a DFN8 2x2 package.
- How does the OA2NP22Q handle power supply transient drops?
The OA2NP22Q has tolerance to power supply transient drops, ensuring stable operation under varying supply conditions.
- What is the slew rate of the OA2NP22Q?
The slew rate is typically 3 V/ms.
