Overview
The OPA353NA/250, part of the OPA353 series from Texas Instruments, is a high-speed, single-supply, rail-to-rail operational amplifier. These amplifiers are designed for low-cost, miniature applications and are optimized for low voltage, single-supply operation. They feature rail-to-rail input and output, low noise, and high speed, making them ideal for a variety of applications including cell phone PA control loops, video processing, and driving analog-to-digital converters. The OPA353 series is fabricated on a state-of-the-art 0.6 micron CMOS process and is unity-gain stable, suitable for general-purpose and consumer video applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | VS = 5V | ±3 | ±8 | ±10 | mV |
| Power Supply Rejection Ratio (PSRR) | VS = 2.7V to 5.5V, VCM = 0V | 40 | 150 | µV/V | |
| Input Impedance (Differential) | 1013 || 2.5 | Ω || pF | |||
| Open-Loop Gain (AOL) | RL = 10kΩ, 50mV < VO < (V+) – 50mV | 100 | 122 | dB | |
| Gain-Bandwidth Product (GBW) | G = 1 | 44 | MHz | ||
| Slew Rate (SR) | G = 1 | 22 | V/µs | ||
| Output Current (IOUT) | ±40 | mA | |||
| Operating Voltage Range (VS) | TA = –40°C to +85°C | 2.7 | 5.5 | V | |
| Quiescent Current (IQ) | IO = 0 | 5.2 | 8 | mA | |
| Specified Temperature Range | –40 | +85 | °C |
Key Features
- Rail-to-rail input and output (within 10mV of the supply rails)
- High bandwidth: 44MHz
- High slew rate: 22V/µs
- Low noise: 5nV/√Hz
- Low total harmonic distortion plus noise (THD+NOISE): 0.0006%
- Unity-gain stable
- MicroSIZE packages: single, dual, and quad versions available
- Operating voltage range: 2.5V to 5.5V
- Input common-mode voltage range extends 300mV beyond the supply rails
Applications
- Cell phone PA control loops
- Driving A/D converters
- Video processing
- Data acquisition
- Process control
- Audio processing
- Communications
- Active filters
- Test equipment
Q & A
- What is the operating voltage range of the OPA353NA/250?
The operating voltage range is from 2.5V to 5.5V.
- What is the input common-mode voltage range of the OPA353NA/250?
The input common-mode voltage range extends 300mV beyond the supply rails.
- What is the gain-bandwidth product of the OPA353NA/250?
The gain-bandwidth product is 44MHz.
- What is the slew rate of the OPA353NA/250?
The slew rate is 22V/µs.
- Is the OPA353NA/250 unity-gain stable?
- What are the typical applications of the OPA353NA/250?
Typical applications include cell phone PA control loops, driving A/D converters, video processing, and audio processing.
- What is the noise level of the OPA353NA/250?
The noise level is 5nV/√Hz.
- What is the total harmonic distortion plus noise (THD+NOISE) of the OPA353NA/250?
The THD+NOISE is 0.0006%.
- What are the package options available for the OPA353 series?
The OPA353 series is available in single, dual, and quad versions with various package options including SOT-23-5, MSOP-8, SO-8, and SSOP-16.
- How should the power supply pins be bypassed for the OPA353NA/250?
The power supply pins should be bypassed with 0.01µF ceramic capacitors.
