Overview
The OPA170AIDRLR, produced by Texas Instruments, is a high-performance, single-supply operational amplifier. It is part of the OPAx170 family, known for its excellent overall performance, making it ideal for many general-purpose applications. The device features a low noise level of 19 nV/√Hz, RFI filtered inputs, and a rail-to-rail output. It operates over a wide temperature range from –40°C to +125°C, ensuring stability and reliability in various environments.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 4 V to 36 V | |
| Input Noise Voltage | 19 nV/√Hz | |
| Input Range | (V–) - 0.1 V < VCM < (V+) - 2 V | TA = –40°C to +125°C |
| Open-Loop Gain (AOL) | 110 dB to 130 dB | VS = 4 V to 36 V, (V–) + 0.35 V < VO < (V+) - 0.35 V, TA = –40°C to +125°C |
| Gain Bandwidth Product (GBP) | 1.2 MHz | |
| Slew Rate | 0.4 V/µs | G = +1 |
| Settling Time (0.1%) | 20 µs | VS = ±18 V, G = +1, 10-V step |
| Settling Time (0.01%, 12-bit) | 28 µs | VS = ±18 V, G = +1, 10-V step |
| Total Harmonic Distortion + Noise (THD+N) | 0.0002% | G = +1, ƒ = 1 kHz, VO = 3 VRMS |
Key Features
- Low Noise: 19 nV/√Hz, making it suitable for high-precision applications.
- RFI Filtered Inputs: Reduces radio-frequency interference, enhancing signal integrity.
- Rail-to-Rail Output: Allows the output voltage to swing close to the supply rails, maximizing dynamic range.
- High CMRR and PSRR: Common-mode rejection ratio and power supply rejection ratio are high, ensuring minimal interference from common-mode signals and power supply noise.
- Low Offset Drift: Only 2 μV/°C, providing excellent stability over the entire temperature range.
- Wide Temperature Range: Operates from –40°C to +125°C, making it suitable for a variety of environmental conditions.
Applications
The OPA170AIDRLR is versatile and can be used in various applications, including:
- General-Purpose Amplification: Suitable for a wide range of amplification tasks due to its high performance and stability.
- Audio Equipment: Its low noise and high CMRR make it ideal for audio circuits where signal quality is critical.
- Industrial Control Systems: The device's ability to operate over a wide temperature range and its high PSRR make it suitable for industrial environments.
- Medical Devices: Its low noise and high accuracy make it a good choice for medical equipment where precision is paramount.
Q & A
- What is the supply voltage range of the OPA170AIDRLR?
The supply voltage range is from 4 V to 36 V.
- What is the input noise voltage of the OPA170AIDRLR?
The input noise voltage is 19 nV/√Hz.
- What is the gain bandwidth product (GBP) of the OPA170AIDRLR?
The GBP is 1.2 MHz.
- What is the slew rate of the OPA170AIDRLR?
The slew rate is 0.4 V/µs for a gain of +1.
- What is the settling time of the OPA170AIDRLR to 0.1% accuracy?
The settling time is 20 µs for a 10-V step with VS = ±18 V and G = +1.
- What is the total harmonic distortion + noise (THD+N) of the OPA170AIDRLR?
The THD+N is 0.0002% at G = +1, ƒ = 1 kHz, and VO = 3 VRMS.
- What is the common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of the OPA170AIDRLR?
The CMRR and PSRR are high, ensuring minimal interference from common-mode signals and power supply noise.
- What is the operating temperature range of the OPA170AIDRLR?
The device operates from –40°C to +125°C.
- What are some typical applications of the OPA170AIDRLR?
It is used in general-purpose amplification, audio equipment, industrial control systems, and medical devices.
- What is the package type of the OPA170AIDRLR?
The device is packaged in a SOT553 package.
