ADS8341E - 16-Bit 4-Channel 100kHz ADC | Texas Instruments
Référence : ADS8341E ✓ ActifADS8341E Présentation
A sampling ADC is a data-acquisition semiconductor that converts an analog voltage into a digital value through a sample-and-hold stage and successive-approximation conversion. The ADS8341E belongs to the ADC > data converter > signal-chain IC hierarchy. Its onboard input multiplexer reduces the number of external analog switches required, while its synchronous serial interface supports economical connections to microcontrollers, digital signal processors, and isolated data-acquisition systems.
The principal specifications include 16-bit resolution, four single-ended or two differential input channels, and a maximum stated conversion rate of 100 kHz. The manufacturer data reports 86 dB SINAD for signal-quality evaluation. Typical power dissipation is approximately 8 mW when operating at the 100 kHz throughput rate with a 5 V supply, making the device suitable for portable and battery-operated instrumentation where conversion speed, channel count, and power must be balanced.
Technically, the ADS8341E combines an input multiplexer, sample-and-hold circuitry, a 16-bit successive-approximation ADC, and a synchronous serial output stage in one package. This integration simplifies analog channel selection and digital data acquisition. The serial interface can also reduce the number of interconnections required to reach a remote or isolated acquisition boundary, although the complete system still requires an appropriate reference, source impedance, layout, and digital interface implementation.
Typical applications include personal digital assistants, portable multichannel data loggers, measurement equipment, industrial process monitoring, and low-cost isolated remote data-acquisition systems. Its four-channel architecture is especially useful when several slowly varying analog sensors must share one converter, while the 100 kHz conversion capability supports higher-rate instrumentation than a slow general-purpose ADC.
Designers should account for the 5 V operating condition cited for the typical 8 mW power figure, provide suitable analog and reference bypassing, and keep sensitive input and reference traces short. Before replacing another converter, verify the complete pinout and serial protocol rather than relying only on package similarity. The published ADS7841 compatibility is a useful starting point, but PCB changes require confirmation against the manufacturer data.
Alternatives de remplacement direct pour ADS8341E — 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 ADS8341E (même facteur de forme et même empreinte) — différant par Architecture, Package, Resolution.
ADS7841E/2K5G4
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Voir la fiche technique →ADS8341E Valeurs maximales et caractéristiques électriques
| Résolution | 16 bit |
| Input Channels | 4 single-ended or 2 differential channels |
| Conversion Rate | 100 kHz |
| Signal-to-Noise and Distortion Ratio | 86 dB SINAD |
| Architecture | Successive-approximation sampling ADC |
| Output Interface | Synchronous serial interface |
| Typical Supply Condition | 5 V |
| Typical Power Dissipation | 8 mW at 100 kHz throughput and 5 V supply |
| Plage de température de fonctionnement | -40 °C to +85 °C |
| Boîtier | SSOP-16 |
| Type de montage | Surface mount |
| Onboard Multiplexer | Yes |
| Pin Compatibility | Pin-for-pin compatible with ADS7841 |
| Low-Power Suitability | Designed for battery-operated systems |
| Remote Acquisition Suitability | Serial interface supports low-cost isolated data acquisition |
Guide de configuration des broches du ADS8341E ssop-16
Configuration des broches du ADS8341E (boîtier ssop-16). 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 ADS8341E.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ADS8341E convient pour 6 applications: Portable Multichannel Data Loggers, Industrial Process Monitoring, Personal Digital Assistants, Low-Cost Isolated Data Acquisition, General Measurement Equipment, Battery-Powered Environmental Sensors.
Portable Multichannel Data Loggers
The ADS8341E fits portable data loggers that must monitor several analog sensors without using a separate ADC for each channel. Its onboard multiplexer supports four single-ended or two differential inputs, while 16-bit resolution preserves useful detail in slowly varying measurements. Conversion rates up to 100 kHz provide more acquisition capability than a basic slow-resolution logger ADC. Typical power dissipation of approximately 8 mW at 100 kHz and 5 V is also relevant to battery-operated equipment. Designers should budget for input protection, reference accuracy, data storage, and duty-cycled operation because the converter rating alone does not determine complete logger battery life.
Recommandé
Industrial Process Monitoring
The ADS8341E is appropriate for industrial process monitoring when several sensor outputs must be converted through a compact serial interface. Four single-ended inputs reduce analog front-end complexity, and the 86 dB SINAD figure provides a defined signal-quality baseline for process signals. The device can operate as low as the verified -40 °C to +85 °C temperature range, but the complete instrument must be evaluated for electromagnetic interference, surge events, and long cable effects. A 100 kHz conversion capability allows the acquisition stage to handle faster transients than a slow panel-meter converter, provided that sensor bandwidth and isolation are appropriately matched.
Recommandé
Personal Digital Assistants
The ADS8341E is identified by Texas Instruments as suitable for battery-operated personal digital assistants and similar portable electronic systems. Its 16-bit conversion resolution, four-channel multiplexed input, and 100 kHz maximum throughput provide a compact acquisition solution when an application includes analog controls, sensors, or measurement inputs. The reported 8 mW typical dissipation at 100 kHz and 5 V provides a useful benchmark, although real handheld-system consumption will vary with the serial interface activity and power-management scheme. Designers should use low-leakage protection components and verify that the selected reference and front-end settle accurately between conversions.
Recommandé
Low-Cost Isolated Data Acquisition
The ADS8341E suits remote and isolated acquisition systems because its synchronous serial output reduces the number of signals that must cross an isolation boundary. Four multiplexed analog inputs can be placed on the isolated side of a barrier, while a microcontroller or DSP on the non-isolated side receives serial data. The 16-bit resolution and conversion capability up to 100 kHz support instrumentation applications that need more than a basic low-resolution measurement channel. The isolation barrier itself must be selected independently for voltage, bandwidth, creepage, and certification requirements; converter accuracy does not establish the safety rating of the complete isolator.
Recommandé
General Measurement Equipment
The ADS8341E is a practical fit for general-purpose measurement instruments that need multiple analog inputs and a compact serial data path. Its four single-ended or two differential input configuration lets one converter service several measurement nodes, while 100 kHz throughput accommodates signals that change more quickly than a slow panel-meter input. The 86 dB SINAD specification provides a meaningful starting point for analog-chain design. For laboratory accuracy, engineers must still account for reference drift, input settling, source impedance, clock timing, grounding, and calibration. The low-power profile also helps distinguish this part from converters whose speed is obtained with substantially higher operating power.
Recommandé
Battery-Powered Environmental Sensors
The ADS8341E can support battery-powered environmental monitoring systems that combine temperature, pressure, humidity, or other slow analog outputs with a shared converter. The onboard four-channel multiplexer reduces the number of conversion devices, and the 16-bit resolution can preserve useful dynamic range after sensor conditioning. Although the device supports conversion rates up to 100 kHz, environmental nodes usually operate at much lower rates, making system-level power management important. The published 8 mW figure at full 100 kHz activity should not be treated as a guaranteed sleeping-mode value; verify standby behavior in the manufacturer documentation and include regulator quiescent current in the battery budget.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADS8341E — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADS7841 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | SSOP-16 | SSOP-16 |
| Pin Compatibility | Pin-for-pin compatible with ADS7841 | Documented ADS8341E-compatible counterpart |
Principaux différenciateurs
- Integrated four-channel analog multiplexing (vs ADS7841)
- 100 kHz conversion throughput (vs ADS7841)
- 86 dB SINAD performance figure (vs ADS7841)
- Documented migration path (vs ADS7841)
Notes de conception
Keep the ADS8341E analog input, reference, and ground paths compact and follow the manufacturer layout guidance in the ADS8341 datasheet. The onboard multiplexer reduces external switching, but long traces still add parasitic capacitance and pickup that can impair acquisition during the sample-and-hold interval. Place input protection and filtering close to the source or IC according to the protection strategy, and keep high-speed digital clock and serial traces away from sensitive analog nodes.
Budget analog and digital supplies together because converter accuracy can be affected by supply noise and sequencing. The verified 8 mW typical dissipation applies at 100 kHz throughput with a 5 V supply and should not be extrapolated to every operating mode. Confirm actual supply voltage, quiescent current, active current, and shutdown behavior in the manufacturer datasheet before sizing battery capacity or regulator headroom.
Do not treat the documented ADS7841 pin-for-pin relationship as permission to substitute without reviewing the electrical and timing data. Confirm input range, reference voltage, conversion timing, serial clock format, channel sequencing, and acquisition-cycle requirements against the exact ADS7841 datasheet. The ADS8341E also offers two differential channels; a design that depends on that mode must verify that the alternative provides the same differential-input behavior.
Treat the serial clock, data, and frame signals as a coordinated interface rather than independent slow logic lines. Establish which device supplies the clock, meet input and output timing requirements, and account for propagation delay across cable or isolation boundaries. Because the serial interface is a core part of the acquisition path, incorrect clock polarity, edge selection, or channel-update timing can create apparently random conversion results even when the analog front end is correct.
Informations de conformité
The supplied official and distributor snippets confirm product identity, SSOP-16 packaging, the -40 °C to +85 °C temperature range, and key conversion features but do not explicitly state the requested compliance outcomes. No compliance result was assumed.
