TS934ID - 4-Channel 2.7V R-R Micropower Op Amp | STMicroelectronics
Référence : TS934ID ✗ Fin de vieTS934ID Présentation
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs while providing high input impedance and low output impedance. The TS934ID belongs to the operational-amplifier hierarchy, which includes general-purpose amplifier ICs, micropower amplifiers, rail-to-rail amplifiers, and CMOS-input analog ICs. Its four integrated channels reduce the number of packages required when several low-frequency signals must be conditioned in the same system.
The principal features are the 2.7V minimum supply voltage, 10V maximum supply voltage, 100kHz bandwidth, 0.05V/us slew rate, and approximately 20uA typical supply consumption described for the TS93x family. The output stage can reach 2.9Vpp with a 100kohm load when supplied from 3V, making the amplifier suitable for modest-swing signals in low-voltage systems. CMOS inputs minimize input bias current, which is advantageous when the source impedance is high.
The TS934ID is not intended as a high-speed, high-voltage, or precision replacement for every general-purpose quad amplifier. Its 100kHz bandwidth and micropower bias favor portable and instrumentation applications over wideband signal chains. Designers should verify output swing, common-mode range, noise, offset, stability, and load capability against the complete manufacturer datasheet before using it with unusual source impedances, capacitive loads, or rail-to-rail input signals.
Typical uses include battery-powered sensor conditioning, portable measurement equipment, industrial transducers, audio and communications interface circuits, and general 3V instrumentation. The 14-SOIC package is suitable for conventional through-hole PCB assembly and automated manufacturing. Because the device is a four-channel amplifier, one package can serve multiple independent amplifier sections in a compact analog front end.
A key design consideration is power budgeting. The low supply current supports battery-operated systems, but the output still requires a stable supply and suitable bypass capacitance. The amplifier should be operated within the specified supply range and load conditions, and its output should not be used as a power-stage output. Pin assignments, common-mode behavior, and package details should be taken directly from the STMicroelectronics datasheet and pinout diagram.
This page combines verified distributor and manufacturer-linked information, drop-in comparison candidates, pricing fields, application guidance, and practical design notes to support faster component selection and PCB planning.
Alternatives de remplacement direct pour TS934ID — 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 TS934ID (même facteur de forme et même empreinte) — différant par Package, Amplifier Type, Architecture, ESD Protection, Input Type.
TS934IDT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TLV1504ID
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →TL074D
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TL084D
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM324D
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TS934ID Valeurs maximales et caractéristiques électriques
| Number of Amplifiers | 4 circuits |
| Amplifier Type | General-purpose operational amplifier |
| Supply Voltage Range | 2.7V to 10V |
| Single-Supply Operation | Yes |
| Type de sortie | Rail-to-rail output |
| Gain-Bandwidth Product | 100kHz |
| Slew Rate | 0.05V/us |
| Typical Supply Current | 20uA |
| Output Voltage Swing | 2.9Vpp at 3V supply with 100kohm load |
| Input Bias Current | 1pA typical |
| Plage de température de fonctionnement | -40C to +105C |
| Boîtier | 14-SOIC, 0.154 inch width, 3.90mm width |
| Type de montage | Surface Mount |
| Automotive Grade | Not indicated in supplied data |
| ESD Protection | Present according to supplied TS93x family description |
Guide de configuration des broches du TS934ID 14-soic, 0.154 inch width, 3.90mm width
Configuration des broches du TS934ID (boîtier 14-soic, 0.154 inch width, 3.90mm width). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour TS934ID.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TS934ID convient pour 6 applications: Battery-Powered Sensor Conditioning, Portable Medical Instrumentation, Industrial Transducer Interface, Low-Power Audio Interface, 3V Communications Interface, Portable Test and Measurement.
Battery-Powered Sensor Conditioning
The TS934ID fits low-voltage sensor interfaces because its 2.7V minimum supply and approximately 20uA typical supply consumption support portable measurement systems. Four amplifiers in one 14-SOIC package can condition multiple sensor channels without requiring four separate packages. Its rail-to-rail output behavior is useful when the available signal swing is close to the supply limits, while the 1pA typical input bias current helps preserve accuracy with high-impedance sources. Designers should confirm the complete input common-mode range and check that the sensor output remains within the amplifier's usable linear region.
Recommandé
Portable Medical Instrumentation
TS934ID can support compact medical monitoring and diagnostic instruments where low supply current and low input bias current are useful. Its four-channel architecture allows separate amplifier stages for sensing, filtering, buffering, and output conditioning within one package. The 100kHz bandwidth is appropriate for many low-bandwidth physiological and laboratory signals, although the final design must establish noise, accuracy, isolation, and safety requirements independently. The SOIC package simplifies conventional PCB assembly, and the low 20uA typical consumption helps limit the energy burden of battery-operated equipment.
Recommandé
Industrial Transducer Interface
The TS934ID is applicable to low-frequency industrial transducer interfaces requiring multiple amplifier channels on a 3V to 5V supply. Its CMOS input stage provides very low typical bias current, which helps when the transducer or resistive sensor has high source impedance. The quad configuration can amplify, buffer, and filter related signals while reducing package count. Because industrial sensors may have wide common-mode excursions, the engineer must verify the exact input common-mode range, output swing, settling behavior, and noise performance from the manufacturer datasheet before deployment.
Recommandé
Low-Power Audio Interface
TS934ID can be used for modest-bandwidth audio and communications interface circuits where four low-power amplifier channels are needed. Its rail-to-rail output stage can improve usable output swing in low-voltage systems, while the approximately 20uA typical supply current supports compact portable equipment. The 100kHz bandwidth and 0.05V/us slew rate are not intended for high-fidelity wideband audio, so they suit microphone preamplification, headphone-driver support circuits, level shifting, and control-signal amplification rather than demanding audio paths. Confirm distortion and load-driving limits before selecting it for a speaker or line-output stage.
Recommandé
3V Communications Interface
The TS934ID is suitable for low-speed communications interface blocks powered from a 3V rail, including receive-buffer, threshold, and analog decision functions. The 100kHz bandwidth supports baseband and low-speed control signals, while four amplifiers provide channel density for a compact transceiver or line-card implementation. Its CMOS inputs are useful for high-impedance logic and sensing nodes. The design must still account for logic levels, slew requirements, capacitive loading, and supply noise, and should avoid treating the TS934ID as a high-speed line driver or RF amplifier.
Recommandé
Portable Test and Measurement
TS934ID can fit portable test and measurement front ends that process low-frequency sensor or calibration signals from a single low-voltage supply. Four independent channels can serve inputs, buffers, active filters, and output stages while maintaining a compact 14-SOIC footprint. The 2.7V operating floor and approximately 20uA typical supply current support handheld instruments, and the 1pA typical input bias current reduces loading of high-impedance probes. Accuracy-critical designs should separately characterize offset, drift, noise, and gain error against the required measurement uncertainty.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TS934ID — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | TS934IDT | TLV1504ID | TL074D | TL084D | LM324D |
|---|---|---|---|---|---|---|
| Package | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Brand | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Amplifiers | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits |
| Special Feature | Micropower and CMOS input | Micropower and CMOS input | Low-power quad amplifier | General-purpose JFET-input amplifier | General-purpose JFET-input amplifier | General-purpose amplifier |
Principaux différenciateurs
- Very low typical input bias current (vs TL074D)
- Micropower supply consumption (vs LM324D)
- Rail-to-rail output operation (vs TL074D)
- Four channels in a single 14-SOIC package (vs LM324D)
Notes de conception
The TS934ID's approximately 20uA typical supply current is a key advantage in battery-powered systems, but the complete circuit budget must include sensor current, divider resistance, load current, and leakage. Use the manufacturer datasheet to confirm supply-current limits versus temperature and output state. Decouple the supply close to the device with the capacitance and ESR values recommended by the manufacturer, and check that the chosen output load does not create an excessive quiescent-current increase.
Do not assume that rail-to-rail output means the input common-mode range covers both supply rails. The verified data confirms rail-to-rail output operation but does not provide the complete input common-mode range, so input offsets, sensor outputs, and bias networks must be checked against the manufacturer limits. Also verify the 100kHz bandwidth and 0.05V/us slew rate against the required signal frequency and settling time before using the device in a precision or waveform application.
Place the 14-SOIC device so that analog input and output traces remain short, away from switching nodes, and separated from high-current paths. Provide a solid ground plane and route supply bypass connections directly to the package pins. Although the CMOS input bias current is very low, high-impedance nodes can still pick up leakage and contamination; keep sensitive traces short and use guarding or protection where the sensor source impedance is very high.
The quad TS934ID package can reduce package count, but each amplifier section should still be routed according to its signal path rather than treating the IC as a single analog block. Keep feedback components close to their corresponding amplifier pins and avoid routing input and output traces in parallel. If unused amplifier sections are present, follow the datasheet's recommended shutdown or input configuration instead of leaving them floating.
Informations de conformité
The supplied web results identify ESD protection and an automotive-grade supplier attribute for TS934ID, but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for the target MPN. AEC-Q100 is therefore not assumed.
