NJM8202RB1 - 10MHz RRO Dual Op Amp, Low-Noise, MSOP-8 | NJR
Référence : NJM8202RB1 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.62 | $16,20 |
| 100 | $1.34 | $134,00 |
| 500 | $1.08 | $540,00 |
| 1 000 | $0.89 | $890,00 |
NJM8202RB1 Présentation
An operational amplifier (op amp) is a high-gain differential DC amplifier that uses external feedback components to set closed-loop gain, frequency response, and behavior. The NJM8202RB1 belongs to the low-noise, rail-to-rail output amplifier family (op amp -> amplifier IC -> analog IC -> integrated circuit -> semiconductor) and is intended for use as a precision analog building block in signal chains that must operate from a single positive rail while still swinging close to both supply rails.
Key features include a 10 MHz gain-bandwidth product, 3.5 V/µs slew rate, 1 mV typical input offset voltage, 100 nA input bias current, and 75 dB CMRR. The differential rail-to-rail output stage produces a usable output swing within a few millivolts of either rail, while the CMOS input stage draws very little bias current, making the part well-suited for high-impedance sensor interfaces, battery-powered instrumentation, and active filter networks.
Architecturally the NJM8202RB1 integrates two independent op amp channels with class-AB output stages and internal compensation on a single monolithic die. The combination of low input noise (10 nV/√Hz), 10 MHz GBW and RF noise tolerance provides a useful analog front-end for industrial sensors, audio pre-amplifiers, ADC drivers, and reference buffers running from a single 5 V or 12 V supply.
Typical applications include sensor signal conditioning, active filters, audio preamplifiers, line drivers, ADC input buffers, DAC output amplifiers, battery-powered instrumentation, and general-purpose single-supply analog signal chains.
When designing with this part, observe the absolute maximum supply rating of 14 V (or ±7 V dual), provide proper input/output current limiting, and add a small series resistor at the input if the source can produce large fast transients to prevent input-stage overstress.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving the engineer a single point of reference for sourcing and applying the NJM8202RB1.
Alternatives de remplacement direct pour NJM8202RB1 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
NJM8202RB1-TE1
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
NJM8202RB1-TE2
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MCP6002-E/MS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LMV822MM/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TLV2372IDR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
NJM8202RB1 Valeurs maximales et caractéristiques électriques
| Manufacturer | Nisshinbo Micro Devices Inc. (NJR / New Japan Radio) |
| Part Number | NJM8202RB1 |
| Amplifier Type | General Purpose / Low-Noise / RF-Immune Operational Amplifier |
| Number of Circuits | 2 (dual) |
| Type de sortie | Differential, Rail-to-Rail |
| Gain Bandwidth Product | 10 MHz |
| Slew Rate | 3.5 V/µs |
| Input Voltage Noise Density | 10 nV/√Hz (typ. at 1 kHz) |
| Input Offset Voltage (Vos) | 1 mV (typ), 6.0 mV (max) |
| Input Bias Current | 100 nA |
| Common-Mode Rejection Ratio (CMRR) | 75 dB |
| Supply Current (per channel) | 4 mA (typ), 5 mA (max) |
| Supply Voltage Range (Single Supply) | 2.5 V to 14 V |
| Supply Voltage Range (Dual Supply) | ±1.25 V to ±7 V |
| Température de fonctionnement | -40 °C to +85 °C |
| Boîtier | 8-VSSOP / 8-MSOP (TVSP, 0.110", 2.80 mm Width) |
| Power Dissipation | 320 mW |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de NJM8202RB1
| Broche 1 | OUT A — Output of amplifier channel A |
| Broche 2 | IN A- — Inverting input of channel A |
| Broche 3 | IN A+ — Non-inverting input of channel A |
| Broche 4 | V- / GND — Negative supply (or ground for single-supply operation) |
| Broche 5 | IN B+ — Non-inverting input of channel B |
| Broche 6 | IN B- — Inverting input of channel B |
| Broche 7 | OUT B — Output of amplifier channel B |
| Broche 8 | V+ — Positive supply (2.5 V to 14 V single supply) |
Applications typiques
NJM8202RB1 convient pour 7 applications: Sensor Signal Conditioning, Active Filter Networks, Audio Preamplifier and Line Driver, ADC Input Buffer / Driver, DAC Output Amplifier / I-to-V Converter, Battery-Powered Instrumentation, General-Purpose Single-Supply Signal Chain.
Sensor Signal Conditioning
The NJM8202RB1 is well suited for amplifying low-level analog signals from sensors such as thermocouples, strain gauges, photodiodes, and bridge sensors. Its 10 nV/√Hz input voltage noise preserves signal integrity, while the 100 nA input bias current reduces loading on high-impedance sources. The 10 MHz GBW supports closed-loop gains above 100× at signal bandwidths up to 100 kHz. Per the manufacturer datasheet, the RF-immune input stage prevents out-of-band interference from demodulating into the baseband signal in industrial environments with motor drives or wireless transmitters nearby.
Recommandé
Active Filter Networks
The NJM8202RB1's 10 MHz gain-bandwidth product and 3.5 V/µs slew rate enable Sallen-Key, Multiple-Feedback, and state-variable active filter topologies operating from audio to low-RF frequencies. The rail-to-rail output allows the filter passband to swing within millivolts of either supply rail, maximizing dynamic range when running from a single 5 V or 12 V supply. Per the NJR datasheet, the low input noise preserves filter Q-factor at small signal levels. Two independent channels per package simplify stereo or differential filter implementations on a single IC.
Recommandé
Audio Preamplifier and Line Driver
The NJM8202RB1's 10 nV/√Hz input noise floor and 75 dB CMRR make it suitable for microphone preamplifiers and audio line drivers where clean amplification is critical. The 3.5 V/µs slew rate prevents slew-induced distortion at full audio bandwidth (20 Hz to 20 kHz). Per the NJR datasheet, the rail-to-rail output stage maximizes dynamic range on 5 V or 3.3 V analog rails. Two channels per package support stereo microphone preamps or balanced line receivers without needing a second IC.
Recommandé
ADC Input Buffer / Driver
The NJM8202RB1 functions as a low-noise unity-gain or gain-of-2 buffer between high-impedance signal sources and successive-approximation or delta-sigma ADCs. Its 10 MHz GBW provides ample loop gain at the Nyquist frequency of typical audio-band and industrial ADCs (44 kS/s to 500 kS/s), and the 3.5 V/µs slew rate ensures clean settling during ADC acquisition windows. Per the NJR datasheet, the rail-to-rail output stage lets the buffer swing to the ADC's full-scale range without headroom loss on a single 5 V rail.
Recommandé
DAC Output Amplifier / I-to-V Converter
The NJM8202RB1 serves as an I-to-V converter or low-pass smoothing amplifier following a current-output DAC. Its 10 MHz GBW provides the loop gain needed to settle cleanly at audio sample rates, and the low 1 mV offset (6 mV max) reduces zero-scale errors in the reconstruction filter. Per the NJR datasheet, the rail-to-rail output maximizes usable dynamic range on 5 V supplies. Two channels per package support stereo DAC outputs in audio playback designs.
Recommandé
Battery-Powered Instrumentation
The NJM8202RB1 operates from 2.5 V to 14 V single supply, making it compatible with single-cell Li-ion (3.0-4.2 V), 2-cell (6-8.4 V), and 9 V battery configurations used in portable instrumentation. The 4 mA per channel quiescent current keeps battery drain low in continuous-on applications, while the rail-to-rail output allows maximum use of the battery's discharge curve. Per the NJR datasheet, the CMOS input stage draws negligible bias current, preserving battery life in long-duration data-logger deployments.
Recommandé
General-Purpose Single-Supply Signal Chain
The NJM8202RB1 is a strong default choice for any general-purpose analog signal chain requiring two independent op amp channels on a single supply. Its combination of 10 MHz GBW, 3.5 V/µs slew rate, 10 nV/√Hz noise, and RF noise immunity covers the majority of industrial, instrumentation, and consumer analog building-block needs. Per the NJR datasheet, the part's robust output stage drives 2 kΩ loads to within tens of millivolts of either rail, simplifying downstream signal-chain design.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour NJM8202RB1 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | NJM8202RB1-TE1 | NJM8202RB1-TE2 | MCP6002-E/MS | LMV822MM/NOPB | TLV2372IDR |
|---|---|---|---|---|---|---|
| Brand | Nisshinbo Micro Devices Inc. (NJR) | Nisshinbo Micro Devices Inc. | Nisshinbo Micro Devices Inc. | Microchip Technology | Texas Instruments | Texas Instruments |
| Package | 8-MSOP (TVSP, 0.110") | 8-MSOP - same | 8-MSOP - same | 8-MSOP - same | 8-MSOP - same | 8-SOIC (verify land pattern vs MSOP) |
| Number of Channels | 2 (dual) | 2 | 2 | 2 | 2 | 2 |
| Gain Bandwidth Product | 10 MHz | 10 MHz | 10 MHz | 1 MHz | 5.5 MHz | 3 MHz |
| Slew Rate | 3.5 V/µs | 3.5 V/µs | 3.5 V/µs | 0.6 V/µs | 1.4 V/µs | 2.4 V/µs |
| Input Voltage Noise Density | 10 nV/√Hz | 10 nV/√Hz | 10 nV/√Hz | 25 nV/√Hz | 14 nV/√Hz | 39 nV/√Hz |
| Supply Voltage Range (Single) | 2.5 V to 14 V | 2.5 V to 14 V | 2.5 V to 14 V | 1.8 V to 6.0 V | 2.5 V to 5.5 V | 2.7 V to 16 V |
| Output Type | Rail-to-Rail (RRO) | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| RF Noise Immunity | Yes (rated feature) | Yes | Yes | Standard | Standard | Standard |
Principaux différenciateurs
- Higher gain-bandwidth product than most competing dual op amps in 8-MSOP (vs MCP6002-E/MS)
- Lower input voltage noise than competing dual RRO op amps (vs TLV2372IDR)
- Wider supply voltage range than typical competing dual op amps (vs LMV822MM/NOPB)
- Built-in RF noise immunity (vs Standard dual op amps without RF immunity)
Notes de conception
Estimated: at a maximum supply of 14 V and 5 mA per channel quiescent current, total power dissipation is approximately 280 mW across both channels - well below the 320 mW rated package dissipation. Place a 0.1 µF ceramic bypass capacitor within 5 mm of the V+ pin (pin 8) and a 1-10 µF bulk capacitor near the supply input to prevent oscillation. Use a continuous ground plane on the layer beneath the IC to minimize parasitic inductance and to provide thermal spreading. Keep input traces short and shield them from switching noise sources.
Do not apply voltages exceeding the absolute maximum ratings: V+ to V- of 14 V, and input voltages beyond the rails by more than 0.3 V. The CMOS input stage has reverse-biased ESD diodes that can be damaged by large fast transients - if the source can produce such transients, add a 100 Ω to 1 kΩ series input resistor to limit input current. Decouple the supply rail with both a 0.1 µF ceramic (HF) and 1-10 µF electrolytic/tantalum (LF) capacitor. Input offset voltage is 1 mV typical but can reach 6 mV max - calibrate or zero in precision DC applications.
Use a star-ground or split-plane layout so that high-current return paths (such as the load of OUT B) do not share trace segments with the sensitive IN A/IN B input traces. Keep the two channels' input and feedback networks physically separated to minimize crosstalk. Place the feedback resistor directly between the output and inverting input pins with the ground node of the gain-setting resistor connected to a low-impedance ground via to prevent gain errors.
Estimated: the input voltage noise of 10 nV/√Hz at 1 kHz gives a total integrated noise (over a 100 kHz bandwidth) of approximately 3.2 µVrms - this sets the floor for the smallest resolvable signal at unity gain. For lower-noise applications, consider the LTC6247 or OPA1612 zero-drift or precision audio op amps. The 75 dB CMRR is sufficient for most single-supply applications, but precision DC measurement circuits may require higher CMRR parts.
Informations de conformité
RoHS compliant per DigiKey product listing. Not AEC-Q100 qualified - this is a commercial/industrial grade part. Halogen-free status not specified in the verified web data; halogen_free set to 'unknown' to avoid fabrication.
