LM2904DR - Dual 26V 700kHz Op Amp | Texas Instruments
MPN: LM2904DR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.35 | $0.35 |
| 10 | $0.28 | $2.80 |
| 100 | $0.22 | $22.00 |
| 500 | $0.18 | $90.00 |
| 1,000 | $0.15 | $150.00 |
Drop-in alternatives for LM2904DR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LM2904D
✅ Drop-In📋 Reference alternative (not in catalog)
LM2904VDR
✅ Drop-In📋 Reference alternative (not in catalog)
LM358DR
✅ Drop-In✓ In Stock
$0.15 / Unit
View Datasheet →LM358ADDR
✅ Drop-In✓ In Stock
$0.09 / Unit
View Datasheet →LM2904DR2G
✅ Drop-In📋 Reference alternative (not in catalog)
LM2904D
✅ Drop-In📋 Reference alternative (not in catalog)
LM2904DR Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Supply Voltage - Single | 3 V to 26 V |
| Supply Voltage - Dual | ±1.5 V to ±13 V |
| Gain Bandwidth Product | 700 kHz |
| Slew Rate | 0.3 V/µs |
| Input Offset Voltage | 2 mV (typical) |
| Input Bias Current | 20 nA (typical) |
| Quiescent Current (per amplifier) | 500 µA (typical) |
| Common-Mode Rejection Ratio | 70 dB (typical) |
| Power Supply Rejection Ratio | 70 dB (typical) |
| Output Current | 30 mA (typical) |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-SOIC |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
LM2904DR Pin Configuration
| Pin 1 | 1OUT — Output of amplifier 1 |
| Pin 2 | 1IN- — Inverting input of amplifier 1 |
| Pin 3 | 1IN+ — Non-inverting input of amplifier 1 |
| Pin 4 | V- — Negative supply (ground in single-supply operation) |
| Pin 5 | 2IN+ — Non-inverting input of amplifier 2 |
| Pin 6 | 2IN- — Inverting input of amplifier 2 |
| Pin 7 | 2OUT — Output of amplifier 2 |
| Pin 8 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LM2904DR is suitable for 6 applications: Transducer Amplifiers, DC Gain Blocks, Active Filters, Signal Conditioning, Battery-Powered Devices, Automotive Electronics.
Transducer Amplifiers
The LM2904DR is ideal for amplifying signals from sensors such as thermocouples, strain gauges, and photodiodes. Its low input bias current (20 nA) minimizes loading on high-impedance sensors, and the wide supply voltage range accommodates various sensor excitation voltages. The dual-channel configuration allows simultaneous conditioning of two sensors, reducing component count. The op amp's gain bandwidth product of 700 kHz is sufficient for most sensor signals, which are typically below 100 kHz. The output can drive ADC inputs directly, simplifying the signal chain. For best accuracy, use precision resistors in the feedback network to maintain the low offset voltage.
Recommended
DC Gain Blocks
The LM2904DR can be configured as a non-inverting or inverting amplifier to provide fixed gain for DC signals. Its low offset voltage (2 mV) and high DC gain (100 dB) ensure accurate amplification. The device operates from a single supply, allowing it to amplify signals that are referenced to ground. The output can swing close to the rails, maximizing dynamic range. For gains greater than 10, use a feedback capacitor to maintain stability. The dual-channel design is useful for stereo audio or dual-axis positioning systems. The low quiescent current makes it suitable for battery-powered gain stages.
Recommended
Active Filters
The LM2904DR is well-suited for active filter designs such as low-pass, high-pass, and band-pass filters. Its gain bandwidth product of 700 kHz allows filter cutoff frequencies up to 100 kHz with reasonable Q factors. The device's low output impedance enables driving subsequent stages without loading. The wide supply voltage range supports both single and dual supply filter topologies. For audio applications, the low distortion and noise performance ensure clean signal processing. The dual-channel configuration is ideal for stereo filters or multi-stage filters. Use high-quality capacitors and resistors to achieve accurate filter characteristics.
Recommended
Signal Conditioning
The LM2904DR is commonly used in signal conditioning circuits to adjust the amplitude, offset, or impedance of sensor signals before ADC conversion. Its rail-to-rail output (within 1.5V of rails) allows full-scale ADC input utilization. The device can be configured as a buffer, level shifter, or differential amplifier. The low input bias current minimizes errors when interfacing with high-impedance sources. The wide operating temperature range ensures reliable performance in industrial environments. The dual-channel design allows conditioning of multiple signals in a compact footprint. For best performance, place the op amp close to the sensor to reduce noise pickup.
Recommended
Battery-Powered Devices
The LM2904DR's low quiescent current (500 µA per amplifier) makes it ideal for battery-powered devices such as portable instruments, wireless sensors, and medical monitors. The wide supply voltage range (3V to 26V) allows operation from a variety of battery chemistries, including Li-ion, alkaline, and lead-acid. The device can operate down to 3V, making it compatible with single-cell Li-ion batteries. The low power consumption extends battery life, which is critical for remote or wearable devices. The dual-channel configuration reduces component count, saving board space and cost. The device's robustness ensures reliable operation over the battery's discharge curve.
Recommended
Automotive Electronics
The LM2904DR is qualified for automotive applications with its wide operating temperature range (-40°C to +125°C) and robust design. It is used in engine control units, transmission control, and body electronics for signal conditioning, sensor amplification, and actuator control. The device's ability to operate from a 12V battery supply (with transients up to 26V) makes it suitable for automotive power rails. The low offset voltage ensures accurate sensor readings, which is critical for engine performance. The dual-channel design allows compact PCB layouts in space-constrained automotive modules. The device is AEC-Q100 qualified? No, but it meets the temperature requirements for many automotive applications.
Recommended
Recommended Products Summary
Engineering reference data for LM2904DR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LM2904D | LM2904VDR | LM358DR | LM358ADDR | LM2904DR2G | LM2904D (ST) |
|---|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | STMicroelectronics |
| Supply Voltage Range | 3V to 26V | 3V to 26V | 3V to 26V | 3V to 32V | 3V to 32V | 3V to 26V | 3V to 26V |
| Gain Bandwidth Product | 700 kHz | 700 kHz | 700 kHz | 1 MHz | 1 MHz | 700 kHz | 700 kHz |
| Slew Rate | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs |
| Input Offset Voltage (max) | 7 mV | 7 mV | 7 mV | 7 mV | 2 mV | 7 mV | 7 mV |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | 0°C to +70°C | 0°C to +70°C | -40°C to +125°C | -40°C to +125°C |
| Quiescent Current (per amp) | 500 µA | 500 µA | 500 µA | 500 µA | 500 µA | 500 µA | 500 µA |
Key Differentiators
- Wider operating temperature range (-40°C to +125°C) compared to LM358DR (vs LM358DR)
- Lower input offset voltage (2 mV typical) compared to LM358DR (vs LM358DR)
- Pin-to-pin compatible with industry-standard LM358 (vs LM358DR)
Design Notes
For single-supply operation, connect pin 4 (V-) to ground and pin 8 (V+) to the positive supply. Bypass each supply pin with a 0.1µF ceramic capacitor placed as close to the IC as possible. For dual-supply operation, use ±5V to ±13V supplies. The device can operate from a single 3V supply, but ensure the input common-mode range is not exceeded.
Place the LM2904DR close to the signal source to minimize noise pickup. Use a ground plane to reduce EMI. Keep feedback resistors and capacitors close to the inverting input to minimize parasitic capacitance. For high-impedance inputs, guard traces to reduce leakage currents.
Do not exceed the absolute maximum supply voltage of 32V. The input common-mode range extends from 0V to V+ - 1.5V. Exceeding this range can cause phase reversal. The output can drive loads down to 2kΩ, but for heavier loads, use a buffer. Avoid using the device as a comparator for precision applications due to slow response.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified, but meets automotive temperature range. Halogen-free status not specified in provided data.
