Overview
The OPA2314AIDGKR, part of the OPA314 family, is a low-power, low-noise, rail-to-rail input and output operational amplifier designed by Texas Instruments. This device is optimized for low-voltage operation, ranging from 1.8 V to 5.5 V, making it suitable for a wide range of general-purpose and battery-powered applications. The OPA2314AIDGKR is unity-gain stable and features a 3-MHz bandwidth along with a slew rate of 1.5 V/μs. It is particularly attractive for applications requiring a balance between cost and performance, especially in portable and low-power designs.
Key Specifications
| Parameter | Typical Value | Unit | Conditions |
|---|---|---|---|
| Supply Voltage Range | 1.8 to 5.5 | V | |
| Quiescent Current per Channel | 150 | μA | VS = 5 V, IO = 0 mA |
| Input Voltage Noise Density | 14 | nV/√Hz | f = 1 kHz |
| Input Bias Current | 0.2 | pA | |
| Input Offset Voltage | 0.5 | mV | |
| Gain Bandwidth Product | 3 | MHz | |
| Slew Rate | 1.5 | V/μs | |
| Operating Temperature Range | –40 to 125 | °C | |
| Short-Circuit Current | ±20 | mA | VS = 5 V |
Key Features
- Low Power Consumption: Quiescent current of 150 μA per channel at 5 V supply.
- Low Noise: Input voltage noise density of 14 nV/√Hz at 1 kHz.
- Rail-to-Rail Input and Output: Allows for full use of the supply voltage range, increasing dynamic range in low-supply applications.
- Unity-Gain Stable: Stable with capacitive loads up to 300 pF.
- Internal RF/EMI Filter: Provides rejection of radio-frequency and electromagnetic interference.
- High ESD Protection: 4-kV human body model (HBM) protection.
- Wide Operating Temperature Range: From –40°C to 125°C.
- Low Input Bias Current: 0.2 pA, supporting applications with high source impedances.
Applications
- Battery-Powered Instruments: Ideal for portable devices such as notebooks, portable media players, and other consumer electronics.
- Consumer, Industrial, Medical Devices: Suitable for a variety of applications requiring low power and high performance.
- Analog-to-Digital Converters (ADCs): Drives sampling ADCs effectively due to its rail-to-rail input and output swings.
Q & A
- What is the supply voltage range of the OPA2314AIDGKR?
The supply voltage range is from 1.8 V to 5.5 V.
- What is the typical quiescent current per channel for the OPA2314AIDGKR?
The typical quiescent current per channel is 150 μA at a 5 V supply.
- What is the input voltage noise density of the OPA2314AIDGKR at 1 kHz?
The input voltage noise density is 14 nV/√Hz at 1 kHz.
- Is the OPA2314AIDGKR unity-gain stable?
Yes, the OPA2314AIDGKR is unity-gain stable.
- What is the slew rate of the OPA2314AIDGKR?
The slew rate is 1.5 V/μs.
- What is the operating temperature range of the OPA2314AIDGKR?
The operating temperature range is from –40°C to 125°C.
- Does the OPA2314AIDGKR have internal RF/EMI filtering?
Yes, it has an internal RF/EMI rejection filter.
- What is the input bias current of the OPA2314AIDGKR?
The input bias current is 0.2 pA.
- What is the typical input offset voltage of the OPA2314AIDGKR?
The typical input offset voltage is 0.5 mV.
- What kind of ESD protection does the OPA2314AIDGKR have?
The OPA2314AIDGKR has 4-kV human body model (HBM) ESD protection.
