IC OPAMP GP 2 CIRCUIT 8DIP LM2904 is a dual operational amplifier.
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Jul 17, 2021
Don Sonmerfield
Workbench session - Circuit Bended Toy - a LM2904 based Filter and an Arduino
IC OPAMP GP 2 CIRCUIT 8DIP
LM2904 is a dual operational amplifier. This article mainly introduce its pinout, features, applications and other detailed information about On Semiconductor LM2904.
LM2904N
The circuit consists of two independent high-gain operational amplifiers (op amps) Frequency compensation is realized internally. They are designed Specially used in automotive and industrial control systems. The circuit starts from a Single power supply, wide voltage range. Low power consumption It has nothing to do with the size of the power supply voltage.
Application areas include sensor amplifiers, DC gain blocks and all Traditional operational amplifier circuits can now be more easily integrated in a single power supply system. For example, these circuits can be directly For use in logic systems and easily provide the required standard 5 V Electronic interface, without any additional power supply. In linear mode, the input common-mode voltage range includes ground and The output voltage can also swing to ground, even with a single power supply operation supply.
• Internal frequency compensation
• Large DC voltage gain: 100 dB
• Wide bandwidth (unity gain): 1.1 MHz (temperature compensation)
• Very low supply current/amplifier, basically independent of supply voltage
• Low input bias current: 20 nA (temperature compensation)
• Low input offset current: 2 nA
• Input common mode voltage range includes negative rail
• The differential input voltage range is equal to the power supply voltage
• Large output voltage swing 0 V to [(VCC +) -1.5 V]
ON Semiconductor LM2904N technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor LM2904N.
ON Semiconductor LM2904N technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor LM2904N.
| Product Attribute | Attribute Value | |
|---|---|---|
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | 8-DIP (0.300, 7.62mm) | |
| Number of Pins | 8Pins | |
| Weight | 851mg | |
| Operating Temperature | -40°C~85°C | |
| Packaging | Tube | |
| Published | 2011 | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Obsolete | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 8Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Tin (Sn) | |
| Packing Method | RAIL | |
| Terminal Position | DUAL |
| Product Attribute | Attribute Value | |
|---|---|---|
| Number of Functions | 2Functions | |
| Supply Voltage | 5V | |
| Base Part Number | LM2904 | |
| Pin Count | 8 | |
| Operating Supply Voltage | 26V | |
| Number of Channels | 2Channels | |
| Operating Supply Current | 800μA | |
| Nominal Supply Current | 1.2mA | |
| Output Current | 40mA | |
| Slew Rate | 0.3V/μs | |
| Architecture | VOLTAGE-FEEDBACK | |
| Amplifier Type | General Purpose | |
| Common Mode Rejection Ratio | 50 dB | |
| Current - Input Bias | 45nA | |
| Voltage - Supply, Single/Dual (±) | 3V~26V ±1.5V~13V | |
| Output Current per Channel | 30mA | |
| Input Offset Voltage (Vos) | 7mV |
| Product Attribute | Attribute Value | |
|---|---|---|
| Gain Bandwidth Product | 1MHz | |
| Unity Gain BW-Nom | 1000 kHz | |
| Voltage Gain | 100dB | |
| Average Bias Current-Max (IIB) | 0.5μA | |
| Power Supply Rejection Ratio (PSRR) | 50dB | |
| Low-Offset | NO | |
| Frequency Compensation | YES | |
| Voltage - Input Offset | 2.9mV | |
| Height | 6.35mm | |
| Length | 6.35mm | |
| Width | 6.35mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | RoHS Compliant | |
| Lead Free | Lead Free |
The LM2904 is a dual package version of the commonly used LM741 Op-Amp, both the IC share the same electrical characteristics. This Op-Amp does not have a latch-up problem and hence is ideal to be used in voltage follower applications. It also has internal frequency compensation and short circuit protection in-built and hence requires a minimum number of components to be application ready. Because of these characteristics, these ICs are commonly found inside DVD players and Guitar amplifiers.
LM2904 IC consume very low current. So if you are looking for an Op-amp IC with all these characteristics, then this IC might be right choice for you.
As mentioned earlier this IC requires minimum number of components to be application ready. A high input impedance non-inverting application circuit diagram from LM2904 IC datasheet is shown below.
Input supply is given at the non-inverting pin while inverting pin is connected to ground through a 10k resistor. This circuit gives a closed-loop gain equal to the ratio of the sum of R1 and R2 to R1 and a closed-loop 3 dB bandwidth equal to the amplifier unity-gain frequency divided by the closed-loop gain. The gain of the circuit depends on the R1 and R2:
Set R1 to 10kΩ, and R2 to 99x the value of R1, which would be 990kΩ. Replacing the 990kΩ with a 1MΩ will result in a gain of 101, which is within the desired gain tolerance.
• Active filter
• General signal conditioning and amplification
• 4 to 20mA current loop transmitter
ON Semiconductor is a semiconductor supplier company, formerly a Fortune 500, but fell into the Fortune 1000 (ranked 512) in 2020. Products include power and signal management, logic, discrete and custom devices for automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace, and power applications. ON Semiconductor operates a network of manufacturing facilities, sales offices, and design centers in North America, Europe, and Asia Pacific. ON Semiconductor is headquartered in Phoenix, Arizona, with revenues of US$3.907 billion (2016), making it one of the top 20 semiconductor sales leaders in the world.
Download datasheets and manufacturer documentation for ON Semiconductor LM2904N.
Download datasheets and manufacturer documentation for LM2904N
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