Overview
The LM2902N/PB is a low-power, quad-operational amplifier produced by National Semiconductor, now part of Texas Instruments. This device is designed for a wide range of applications requiring multiple operational amplifiers in a single package. It is known for its low power consumption, high DC voltage gain, and wide bandwidth, making it suitable for various electronic circuits.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage (Single Supply) | 3 | - | 32 | V |
| Supply Voltage (Dual Supplies) | ±1.5 | - | ±16 | V |
| Supply Current (V+ = 30V) | 1.5 | 3 | 3 | mA |
| Supply Current (V+ = 5V) | 0.7 | 1.2 | 1.2 | mA |
| Input Bias Current | 40 | 300 | 500 | nA |
| Input Offset Voltage | - | 2 | - | mV |
| Input Offset Current | - | 5 | - | nA |
| Common-Mode Voltage Range | 0 | - | V+ - 1.5 | V |
| Large Signal Voltage Gain (V+ = 15V, RL ≥ 2kΩ) | 25 | - | 100 | V/mV |
| Output Voltage Swing (V+ = 30V, RL = 2kΩ) | - | - | V+ - 1.5 | V |
| Bandwidth (Unity Gain) | - | 1 | - | MHz |
Key Features
- Internally frequency compensated for unity gain.
- Large DC voltage gain of 100 dB.
- Wide bandwidth of 1 MHz (temperature compensated).
- Wide power supply range: Single supply from 3V to 32V, or dual supplies from ±1.5V to ±16V.
- Very low supply current drain (700 µA), essentially independent of supply voltage.
- Low input biasing current (45 nA) and low input offset voltage (2 mV).
- Input common-mode voltage range includes ground and can go up to V+ - 1.5V.
- Large output voltage swing from 0V to V+ - 1.5V.
- Compatible with all forms of logic and suitable for battery operation.
Applications
- Transducer amplifiers.
- DC gain blocks.
- All conventional op-amp circuits.
- Battery-powered devices due to low power consumption.
- General-purpose amplification in various electronic systems.
Q & A
- What is the supply voltage range for the LM2902N/PB?
The LM2902N/PB can operate on a single supply from 3V to 32V or dual supplies from ±1.5V to ±16V.
- What is the typical supply current for the LM2902N/PB?
The typical supply current is 700 µA, which is essentially independent of the supply voltage.
- What is the input bias current of the LM2902N/PB?
The input bias current is typically 45 nA.
- What is the input offset voltage of the LM2902N/PB?
The input offset voltage is typically 2 mV.
- What is the bandwidth of the LM2902N/PB at unity gain?
The bandwidth at unity gain is 1 MHz, which is temperature compensated.
- What is the common-mode voltage range for the LM2902N/PB?
The common-mode voltage range includes ground and goes up to V+ - 1.5V.
- How does the LM2902N/PB handle short circuits to ground or V+?
Short circuits from the output to V+ can cause excessive heating and eventual destruction. It is advised to avoid such conditions.
- Is the LM2902N/PB compatible with all forms of logic?
Yes, the LM2902N/PB is compatible with all forms of logic.
- What are some typical applications of the LM2902N/PB?
Typical applications include transducer amplifiers, DC gain blocks, and all conventional op-amp circuits.
- What is the operating temperature range for the LM2902N/PB?
The specifications for the LM2902N/PB are limited to -40°C ≤ TA ≤ +85°C.
