Overview
The LM2904BIDGKR is a dual operational amplifier produced by Texas Instruments. It is part of the LM2904 series, known for its high performance, low power consumption, and wide range of applications. This device is particularly suited for cost-sensitive applications that require high reliability and robust performance.
The LM2904BIDGKR features two high-voltage operational amplifiers in a single package, making it ideal for various industrial and consumer electronics applications. It offers a wide supply voltage range, low offset voltage, and high common-mode rejection ratio, among other key characteristics.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VS) | 3 | 26 | V | ||
| Input Offset Voltage (VOS) | TA = 25°C | ±0.3 | ±3.0 | ±4 | mV |
| Input Offset Voltage Drift (dVOS/dT) | TA = –40°C to +125°C | ±3.5 | 12 | µV/°C | |
| Common-Mode Rejection Ratio (CMRR) | VS = 5 V to 26 V; VCM = 0 V | 50 | 70 | 85 | dB |
| Power Supply Rejection Ratio (PSRR) | VS = 5 V to 26 V | 65 | 100 | dB | |
| Input Bias Current (IB) | VO = 1.4 V, TA = 25°C | –20 | –250 | –500 | nA |
| Input Offset Current (IOS) | VO = 1.4 V, TA = 25°C | 2 | 50 | 150 | nA |
| Unity-Gain Bandwidth | 1.2 | MHz | |||
| Operating Ambient Temperature (TA) | –40 | 125 | °C |
Key Features
- Wide Supply Range: The LM2904BIDGKR operates over a wide supply voltage range of 3V to 26V, making it versatile for various applications.
- Low Quiescent Current: Each amplifier has a typical quiescent current of 300µA, which is beneficial for power-sensitive designs.
- High Common-Mode Rejection Ratio: The device offers a high CMRR of up to 85 dB, ensuring good noise rejection and stability.
- Internal RF and EMI Filter: The LM2904BIDGKR includes internal RF and EMI filters, enhancing its performance in noisy environments.
- High ESD Protection: The device features high ESD protection of up to 2kV (HBM), making it suitable for rugged applications).
- Compact Packaging: Available in various compact packages such as VSSOP, TSSOP, and SOT-23, which are ideal for space-constrained designs).
Applications
- Power Supplies and Mobile Chargers: Suitable for use in power supply units, mobile chargers, and other power management systems).
- Motor Control: Used in motor control applications including AC induction, brushed DC, brushless DC, and stepper motors).
- Consumer Electronics: Found in desktop PCs, motherboards, multi-function printers, washers, dryers, and refrigerators).
- Industrial Automation: Used in AC inverters, string inverters, central inverters, and voltage frequency drives).
- Uninterruptible Power Supplies (UPS): Suitable for UPS systems due to its reliability and performance under various conditions).
Q & A
- What is the supply voltage range of the LM2904BIDGKR?
The LM2904BIDGKR operates over a supply voltage range of 3V to 26V).
- What is the typical quiescent current per amplifier?
The typical quiescent current per amplifier is 300µA).
- What is the common-mode rejection ratio (CMRR) of the LM2904BIDGKR?
The CMRR is up to 85 dB).
- Does the LM2904BIDGKR have internal RF and EMI filters?
Yes, the LM2904BIDGKR includes internal RF and EMI filters).
- What is the ESD protection level of the LM2904BIDGKR?
The device has an ESD protection level of up to 2kV (HBM)).
- In what packages is the LM2904BIDGKR available?
The LM2904BIDGKR is available in packages such as VSSOP, TSSOP, and SOT-23).
- What are some common applications of the LM2904BIDGKR?
Common applications include power supplies, motor control, consumer electronics, industrial automation, and UPS systems).
- What is the operating ambient temperature range of the LM2904BIDGKR?
The operating ambient temperature range is –40°C to 125°C).
- What is the unity-gain bandwidth of the LM2904BIDGKR?
The unity-gain bandwidth is 1.2 MHz).
- Can the input common-mode voltage range include ground?
Yes, the input common-mode voltage range includes ground, enabling direct sensing near ground).
