Overview
The OPA353NA/3KG4, 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 applications.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage | 2.5 | 5.5 | V | ||
| 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 | 100 | dB |
| Gain-Bandwidth Product (GBW) | G = 1 | 44 | MHz | ||
| Slew Rate (SR) | G = 1 | 22 | V/µs | ||
| Noise (e_n) | 5 | nV/√Hz | |||
| Total Harmonic Distortion + Noise (THD+N) | 0.0006% | % |
Key Features
- Rail-to-rail input and output (within 10mV of supply rails)
- Wide bandwidth: 44MHz
- High slew rate: 22V/µs
- Low noise: 5nV/√Hz
- Low THD+Noise: 0.0006%
- Unity-gain stable
- MicroSIZE packages: Single, dual, and quad versions available
- Operating temperature range: –40°C to +85°C
- Supply voltage range: 2.5V to 5.5V
Applications
- Cell phone PA control loops
- Driving A/D converters
- Video processing (75Ω drive capability)
- Data acquisition
- Process control
- Audio processing
- Communications
- Active filters
- Test equipment
Q & A
- What is the supply voltage range for the OPA353NA/3KG4?
The supply voltage range is from 2.5V to 5.5V.
- What is the input offset voltage for the OPA353NA/3KG4?
The input offset voltage is ±3mV to ±10mV.
- What is the gain-bandwidth product of the OPA353NA/3KG4?
The gain-bandwidth product is 44MHz.
- What is the slew rate of the OPA353NA/3KG4?
The slew rate is 22V/µs.
- Is the OPA353NA/3KG4 unity-gain stable?
Yes, the OPA353NA/3KG4 is unity-gain stable.
- What are the typical applications for the OPA353NA/3KG4?
Typical applications include cell phone PA control loops, driving A/D converters, video processing, and audio processing.
- What is the operating temperature range for the OPA353NA/3KG4?
The operating temperature range is from –40°C to +85°C.
- What is the noise level of the OPA353NA/3KG4?
The noise level is 5nV/√Hz.
- Can the OPA353NA/3KG4 drive capacitive loads?
Yes, the OPA353NA/3KG4 has excellent capacitive load drive capability.
- What is the total harmonic distortion + noise (THD+N) for the OPA353NA/3KG4?
The THD+N is 0.0006%.
