LM2902DRE4 - Quad 26V 1.2MHz Op Amp | Texas Instruments
Référence : LM2902DRE4 ✓ ActifLM2902DRE4 Présentation
An operational amplifier, commonly called an op amp, is a high-gain differential amplifier with high input impedance and low output impedance. Its feedback network can configure the device as a voltage amplifier, comparator, buffer, summing amplifier, or active filter. The LM2902 belongs to the operational amplifier, analog amplifier, analog signal-conditioning IC, and semiconductor hierarchies, making it suitable for common industrial, instrumentation, audio, control, and interface circuits.
The LM2902DRE4 provides four amplifier channels in one package, reducing board area and simplifying multi-channel designs. Key characteristics include a typical gain-bandwidth product of 1.2 MHz, 0.5 V/µs slew rate, 0.8 mA typical supply-current drain, and low 2 mV input offset voltage. Its wide operating supply range supports single-supply operation up to 26 V and dual-supply operation up to ±13 V.
The architecture supports a broad input common-mode range while maintaining low supply-current consumption independent of supply voltage. These characteristics make the amplifier suitable for battery-powered instrumentation, process-control signals, sensor interfaces, audio preamplification, active filtering, and general-purpose analog systems. Because all four amplifiers operate from common supply pins, board designers can simplify rail distribution and decoupling.
Typical applications include four-channel sensor conditioning, low-frequency active filters, audio mixer stages, comparator circuits, industrial control interfaces, and instrumentation amplifiers built from discrete op-amp stages. The 14-pin SOIC package is also practical for through-hole prototype assembly and conventional surface-mount production, while the −40 °C to +125 °C temperature range supports industrial environments.
Design carefully around input and output voltage limits, common-mode range, output-current capability, and the load presented by the feedback network. Place supply-bypass capacitors close to the positive and negative supply pins, keep feedback traces short, and verify stability with the actual source and load impedances. The manufacturer datasheet and pin-description table should control PCB and schematic assignments.
This page combines the LM2902DRE4 electrical characteristics, package details, drop-in alternatives, comparison parameters, and practical application guidance to support faster component selection and board-level implementation.
Alternatives de remplacement direct pour LM2902DRE4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec LM2902DRE4 (même facteur de forme et même empreinte) — différant par Package, Input Offset Voltage, Amplifier Type, Automotive Qualification, Number of Amplifier Channels.
LM2902DRG3
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →LM2902KDE4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM2902QDRQ1
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →LM2902KVQDR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM2902M
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →LM2902DRE4 Valeurs maximales et caractéristiques électriques
| Amplifier Type | General Purpose |
| Number of Amplifier Channels | 4 circuits |
| Maximum Supply Voltage | 26 V |
| Single-Supply Operating Range | Up to 26 V |
| Dual-Supply Operating Range | ±13 V |
| Gain-Bandwidth Product | 1.2 MHz |
| Input Offset Voltage | 2 mV typical |
| Slew Rate | 0.5 V/µs |
| Supply Current Drain | 0.8 mA typical |
| Plage de température de fonctionnement | -40 °C to +125 °C |
| Boîtier | 14-SOIC |
| Package Width | 3.90 mm |
| Package Body Width | 0.154 mm |
| Type de montage | Surface Mount |
| Packaging | Tape and Reel |
| Nombre de broches | 14 pins |
Configuration des broches de LM2902DRE4
| Broche 1 | 1OUT — Amplifier 1 output |
| Broche 2 | 1IN- — Amplifier 1 inverting input |
| Broche 3 | 1IN+ — Amplifier 1 noninverting input |
| Broche 4 | V- — Negative supply connection |
| Broche 5 | 2IN+ — Amplifier 2 noninverting input |
| Broche 6 | 2IN- — Amplifier 2 inverting input |
| Broche 7 | 2OUT — Amplifier 2 output |
| Broche 8 | 3OUT — Amplifier 3 output |
| Broche 9 | 3IN- — Amplifier 3 inverting input |
| Broche 10 | 3IN+ — Amplifier 3 noninverting input |
| Broche 11 | V+ — Positive supply connection |
| Broche 12 | 4IN+ — Amplifier 4 noninverting input |
| Broche 13 | 4IN- — Amplifier 4 inverting input |
| Broche 14 | 4OUT — Amplifier 4 output |
Applications typiques
LM2902DRE4 convient pour 6 applications: Industrial Sensor Signal Conditioning, Audio Preamplifier and Mixer, Active Filter and Equalization, Process Control Interface, Battery-Powered Instrumentation, Comparator and Threshold Detection.
Industrial Sensor Signal Conditioning
The LM2902DRE4 fits four-channel industrial sensor conditioning because it combines four independent amplifiers with a 26 V maximum supply and a 1.2 MHz gain-bandwidth product. According to the Texas Instruments LM2902 datasheet, each channel can operate from the same positive and negative rails, simplifying the layout of transducers that produce low-level analog signals. The 2 mV typical input offset and 0.5 V/µs slew rate support practical amplifier stages around sensors, while the 14-SOIC package reduces channel-count footprint. Validate the selected sensor output range against the input common-mode limits, and include input filtering when sensor leads are long or electrically noisy.
Recommandé
Audio Preamplifier and Mixer
The LM2902DRE4 can provide low-frequency preamplifier and mixing stages for line-level audio when its 1.2 MHz gain-bandwidth product and 0.5 V/µs slew rate meet the channel requirements. According to the Texas Instruments LM2902 datasheet, four amplifiers are integrated in one 14-SOIC package, allowing compact gain and summing networks without four separate packages. The 26 V maximum supply gives designers headroom for dual-polarity audio rails up to ±13 V. Check the output-swing and load-current limits against the intended headphone, transducer, or mixer load, and use an output coupling or biasing arrangement appropriate to the signal source.
Recommandé
Active Filter and Equalization
The LM2902DRE4 is suitable for first-order and low-order active filters, equalizers, and active feedback networks within its bandwidth range. According to the Texas Instruments LM2902 datasheet, a 1.2 MHz gain-bandwidth product and 0.5 V/µs slew rate provide adequate loop performance for many audio and instrumentation frequencies below 100 kHz. Each of the four channels can implement an independent RC stage, allowing a board to combine filtering and gain in a 14-SOIC footprint. Set resistor and capacitor values around the desired corner frequency, then confirm phase margin, output swing, and stability with the actual source and load impedances.
Recommandé
Process Control Interface
The LM2902DRE4 can form buffering, gain, error-amplifier, and comparator stages in process-control equipment while operating from supplies up to 26 V. According to the Texas Instruments LM2902 family documentation, the device is intended for general-purpose high-voltage analog signal conditioning, and its four channels allow multiple control signals to share one package. Its 0.8 mA typical supply-current drain helps limit system demand, while the -40 °C to +125 °C rating supports industrial temperature ranges. Verify common-mode voltage, input offset, output swing, noise, and stability at the actual control-loop bandwidth and sensor grounding conditions.
Recommandé
Battery-Powered Instrumentation
The LM2902DRE4 is appropriate for portable measurement and monitoring circuits because the LM2902 family provides low supply-current drain independent of supply voltage. According to the Texas Instruments LM2902 datasheet, the typical drain is 0.8 mA, and the amplifier can operate from single supplies up to 26 V or dual supplies up to ±13 V. Four channels can reduce package count when measuring multiple low-frequency nodes, although the complete circuit's quiescent and load current must be included in a battery budget. Account for shutdown behavior, leakage, regulator overhead, and input bias current when estimating operating time.
Recommandé
Comparator and Threshold Detection
The LM2902DRE4 can implement four threshold detectors or comparators when open-loop behavior is acceptable for the selected application. According to the Texas Instruments LM2902 datasheet, the device has a 26 V maximum supply and a 0.5 V/µs slew rate, allowing it to respond to signals within its intended low-frequency range. The integrated quad arrangement supports simultaneous comparison of multiple control or alarm signals in a 14-SOIC package. Review input common-mode limits and output-swing behavior, and account for propagation delay if the threshold signal must change faster than the general-purpose amplifier bandwidth permits.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LM2902DRE4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LM2902DRG3 | LM2902KDE4 | LM2902QDRQ1 | LM2902KVQDR | LM2902M |
|---|---|---|---|---|---|---|
| Package | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Fairchild |
Principaux différenciateurs
- Four general-purpose amplifiers in one compact package (vs LM2902M)
- Wide supply capability for general-purpose analog conditioning (vs LM2902DRG3)
- Automotive-qualified alternatives are available without changing the footprint (vs LM2902QDRQ1)
- Single-package support for four independent signal channels (vs LM2902KDE4)
Notes de conception
Place the positive and negative supply bypass capacitors close to pins 11 and 4, and provide a low-impedance ground return for the circuit. According to the Texas Instruments LM2902 datasheet, the device supports single supplies up to 26 V or dual supplies up to ±13 V. Keep sensitive input traces away from supply and output routing, and use a compact ground path around the amplifier. PCB leakage and contamination can materially affect high-impedance sensor interfaces even though the amplifier itself has a specified 2 mV typical input offset voltage.
Do not assume that all LM2902 suffixes have identical qualification or environmental requirements. LM2902DRE4 is the 14-SOIC tape-and-reel ordering variant, while the alternatives include standard finish variants, automotive-qualified variants, and a cross-brand part. Compare the manufacturer ordering table for package, temperature grade, qualification status, and lead finish. Also verify that each channel remains within the input common-mode range; high-side sensor signals can appear valid at the amplifier output but exceed the input operating limits.
Use short feedback components and route the inverting input directly back to the output-side compensation point. The LM2902DRE4 has a 1.2 MHz gain-bandwidth product and 0.5 V/µs slew rate, so it is intended mainly for low-frequency and moderate-bandwidth signal paths. Avoid operating close to the bandwidth limit with high source impedances, long traces, or capacitive loads. Verify closed-loop stability with the actual sensor capacitance, cable, and load because parasitic capacitance can change the feedback network and create oscillation.
Calculate the maximum total supply voltage before adding any signal or output overshoot, and observe the 26 V maximum rating. The typical 0.8 mA supply-current drain is independent of supply voltage, but input-bias current, output-current demand, and external bias networks contribute to total system consumption. For dual supplies, ensure both rails remain within the manufacturer's operating limits and that input and output voltages never exceed the specified absolute maximum conditions. Add protection if inductive or capacitive loads can create transients.
Informations de conformité
The manufacturer product information does not state the material-compliance declarations for LM2902DRE4. The LM2902QDRQ1 alternative is an automotive-qualified ordering variant, but that status is not assigned to LM2902DRE4.