Operational Amplifiers - Op Amps Automotive-grade, dual, 36-V, 1.2-MHz operational amplifier with -40°C to 125°C operation 8-VSSOP -40 to 125


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Overview of LM2904BQDGKRQ1

The LM2904BQDGKRQ1 is a dual operational amplifier IC designed for precision amplification and signal conditioning applications. This IC features two independent op-amps with high gain and wide bandwidth, making it suitable for a variety of analog circuit designs.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VCC+: Non-Inverting Input for Op-Amp 1
  • VCC-: Inverting Input for Op-Amp 1
  • VCC+: Non-Inverting Input for Op-Amp 2
  • VCC-: Inverting Input for Op-Amp 2
  • VCC+: Positive Power Supply
  • VCC-: Negative Power Supply
  • OUT1: Output for Op-Amp 1
  • OUT2: Output for Op-Amp 2
  • N/C: No Connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM2904BQDGKRQ1 IC for a visual representation.

Key Features

  • Dual Operational Amplifiers: The LM2904BQDGKRQ1 contains two independent op-amps in a single package, providing flexibility for various circuit designs.
  • High Gain and Bandwidth: With high gain and wide bandwidth capability, this IC is suitable for precision amplification tasks.
  • Wide Power Supply Range: Operates from a dual power supply of +/- 2V to +/- 18V, making it versatile for different voltage requirements.
  • Low Input Bias Current: The op-amps feature low input bias current, enhancing accuracy in signal processing applications.
  • Low Offset Voltage: Provides low offset voltage for precise signal amplification and conditioning.

Note: For detailed technical specifications, please refer to the LM2904BQDGKRQ1 datasheet.


  • Signal Conditioning: Ideal for signal conditioning tasks such as filtering, amplifying, and buffering signals in analog circuits.
  • Instrumentation Amplifier: Suitable for applications requiring precision amplification and sensor signal processing.
  • Active Filters: Can be used in active filter circuits for frequency response shaping and signal processing.


The LM2904BQDGKRQ1 is a dual operational amplifier IC designed to provide high-performance signal amplification and conditioning. It offers precision and versatility for a wide range of analog circuit applications.

Usage Guide

  • Power Supply: Connect the positive power supply (VCC+) and negative power supply (VCC-) pins to the appropriate voltage sources within the specified range.
  • Input Connection: Connect the input signals to the non-inverting (VCC+) and inverting (VCC-) inputs of the op-amps based on the desired amplification configuration.
  • Output Handling: Utilize the output pins (OUT1 and OUT2) to extract the amplified and conditioned signals for further processing.

Frequently Asked Questions

Q: Can the LM2904BQDGKRQ1 operate with a single power supply?
A: The LM2904BQDGKRQ1 requires a dual power supply of +/- 2V to +/- 18V for proper operation. It is not designed to operate with a single power supply.

Q: Is the LM2904BQDGKRQ1 suitable for audio signal processing?
A: Yes, the LM2904BQDGKRQ1 can be used for audio signal processing tasks requiring precision amplification and conditioning.


For similar functionalities, consider these alternatives to the LM2904BQDGKRQ1:

  • LM358: A dual operational amplifier IC with similar functionality and performance characteristics from Texas Instruments.
  • LM324: This is a quad operational amplifier IC providing multiple op-amps for complex signal processing applications.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Series LM2904B-Q1 Product Status Active
Amplifier Type General Purpose Output Type Push-Pull
Slew Rate 0.5V/µs Gain Bandwidth Product 1.2 MHz
Current - Input Bias 10 nA Voltage - Input Offset 300 µV
Current - Supply 300µA (x2 Channels) Current - Output / Channel 30 mA
Voltage - Supply Span (Min) 3 V Voltage - Supply Span (Max) 36 V
Operating Temperature -40°C ~ 125°C (TA) Mounting Type Surface Mount
Package / Case VSSOP-8 Supplier Device Package 8-VSSOP
Manufacturer Texas Instruments Product Category Operational Amplifiers - Op Amps
RoHS Details Mounting Style SMD/SMT
Number of Channels 2 Channel Supply Voltage - Max 36 V
GBP - Gain Bandwidth Product 1.2 MHz Output Current per Channel 30 mA
SR - Slew Rate 500 mV/us Vos - Input Offset Voltage 300 uV
Supply Voltage - Min 3 V Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Ib - Input Bias Current 10 nA
Operating Supply Current 300 uA Shutdown No Shutdown
CMRR - Common Mode Rejection Ratio 100 dB en - Input Voltage Noise Density 40 nV/sqrt Hz
Brand Texas Instruments Ios - Input Offset Current 500 pA
Product Operational Amplifiers Product Type Op Amps - Operational Amplifiers
Factory Pack Quantity 2500 Subcategory Amplifier ICs
THD plus Noise 0.001 %

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