Overview
The LM2902WDT from STMicroelectronics is a low-power quad operational amplifier designed for automotive and industrial control systems. This device features four independent, high-gain operational amplifiers with internal frequency compensation. It operates over a wide range of power supply voltages, from 3 V to 30 V for single supply and ±1.5 V to ±15 V for dual supplies. The LM2902WDT is known for its low power consumption, high gain bandwidth, and robust ESD protection up to 800 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3 to 30 V (single supply), ±1.5 V to ±15 V (dual supplies) | V |
| Input Offset Voltage | 2 to 7 mV | mV |
| Input Offset Current | 2 to 30 nA | nA |
| Input Bias Current | 20 to 150 nA | nA |
| Large Signal Voltage Gain | 50 to 100 V/mV | V/mV |
| Gain Bandwidth Product | 1.3 MHz | MHz |
| Slew Rate | 0.24 to 0.4 V/μs | V/μs |
| Supply Current (all op amps, no load) | 0.7 to 3 mA | mA |
| Operating Temperature Range | -40 to 125 °C | °C |
| ESD Protection | 800 V (HBM) | V |
Key Features
- Wide gain bandwidth: 1.3 MHz
- Input common-mode voltage range includes negative rail
- Large voltage gain: 100 dB
- Very low supply current per amplifier: 375 µA
- Low input bias current: 20 nA
- Low input offset current: 2 nA
- ESD internal protection: 800 V
- Wide power supply range: 3 V to 30 V (single supply), ±1.5 V to ±15 V (dual supplies)
- High common-mode rejection ratio: 70 to 80 dB
Applications
- Automotive control systems
- Industrial control systems
- AC coupled inverting and non-inverting amplifiers
- DC summing amplifiers
- Active bandpass filters
- High input impedance, DC differential amplifiers
- Low drift peak detectors
Q & A
- What is the LM2902WDT used for?
The LM2902WDT is used in automotive and industrial control systems due to its high gain, low power consumption, and robust ESD protection.
- What is the operating voltage range of the LM2902WDT?
The LM2902WDT operates from a single supply voltage of 3 V to 30 V and from dual supplies of ±1.5 V to ±15 V.
- What is the gain bandwidth product of the LM2902WDT?
The gain bandwidth product of the LM2902WDT is 1.3 MHz.
- What is the slew rate of the LM2902WDT?
The slew rate of the LM2902WDT is 0.24 to 0.4 V/μs.
- What is the input offset voltage of the LM2902WDT?
The input offset voltage of the LM2902WDT is 2 to 7 mV.
- Does the LM2902WDT have ESD protection?
Yes, the LM2902WDT has internal ESD protection up to 800 V (HBM).
- What are the typical applications of the LM2902WDT?
Typical applications include AC coupled inverting and non-inverting amplifiers, DC summing amplifiers, active bandpass filters, and high input impedance DC differential amplifiers.
- What is the operating temperature range of the LM2902WDT?
The operating temperature range of the LM2902WDT is -40 to 125 °C.
- What packages are available for the LM2902WDT?
The LM2902WDT is available in SO14 and TSSOP14 packages.
- Is the LM2902WDT suitable for automotive applications?
Yes, the LM2902WDT is qualified and characterized according to AEC Q100 and Q003 standards, making it suitable for automotive applications.
