TLV2544QD - 12-Bit 4-Channel 200 kSPS ADC | Texas Instruments
Référence : TLV2544QD ✓ ActifTLV2544QD Présentation
An analog-to-digital converter, or ADC, converts continuous analog voltages into digital values for processing by a microcontroller, DSP, or other digital controller. The TLV2544QD belongs to the SAR ADC family within the broader ADC and data-converter hierarchy. Its four input channels make it suitable for sensor monitoring, industrial control, instrumentation, and portable equipment where several analog measurements must be acquired with a compact serial interface.
The key operating characteristics include 12-bit resolution, 4 analog inputs, 200 kSPS maximum sampling performance, a 3 V to 5.5 V supply range, and a serial output architecture. The converter also includes automatic power-down, a low-power operating mode, and a conversion-clock and reference arrangement described in the family documentation. The 16-SOIC package is designed for conventional surface-mount PCB assembly and provides a practical footprint for compact analog front ends.
The TLV2544QD is identified as an automotive-catalog device in the manufacturer product information. The available product listing identifies the TLV2544Q family as a 12-bit, 200 kSPS, low-power serial ADC family, while the target orderable part is the 4-channel SOIC version. Engineers should confirm the exact temperature range, reference details, input impedance, timing characteristics, and automotive qualification documentation against the current manufacturer datasheet before releasing a production design.
Typical applications include industrial sensor interfaces, battery-powered measurement equipment, temperature and pressure monitoring, portable instrumentation, and low-speed motor or process-control systems. The four-channel architecture simplifies PCB routing by reducing the number of separate converter packages, while the serial interface helps limit pin count and support economical connection to a digital controller. Automatic power-down is particularly useful when the acquisition system operates intermittently.
Designers should confirm analog input voltage limits, acquisition timing, reference stability, digital-interface levels, and the recommended input and reference decoupling network. PCB layout should keep the analog input traces short, separate sensitive analog routing from switching nodes, and provide a stable ground reference. The available verified information identifies the device as a 16-pin SOIC; a complete pin-level assignment was not present in the supplied data, so the pinout is intentionally not fabricated here.
Alternatives de remplacement direct pour TLV2544QD — 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 TLV2544QD (même facteur de forme et même empreinte) — différant par Conversion Time, FIFO Depth, Package, Resolution, Supply Voltage Range.
TLV2544QDRG4
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TLV2544CD
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TLV2544QDG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TLV2544ID
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TLV2544QD Valeurs maximales et caractéristiques électriques
| Converter Type | Successive-approximation ADC (SAR) |
| Résolution | 12 bit |
| Number of Input Channels | 4 |
| Maximum Throughput | 200 kSPS |
| Supply Voltage Range | 3 V to 5.5 V |
| Type de sortie | Serial output |
| Power-Down Control | Software and hardware automatic power-down |
| Operating Architecture | CMOS analog-to-digital converter |
| Boîtier | 16-pin SOIC (D) |
| Type de montage | Surface mount |
| Automotive Catalog | Yes |
| Nombre de broches | 16 |
| Conversion Time | 3.5 us family specification |
| Internal Reference | Built-in reference |
| Conversion Clock | Built-in conversion clock |
| FIFO | 8-entry FIFO |
| Differential Nonlinearity | ±1.2 LSB at 125°C |
| Input Type | 4 single-ended analog input channels |
Guide de configuration des broches du TLV2544QD 16-pin soic (d)
Configuration des broches du TLV2544QD (boîtier 16-pin soic (d)). 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 TLV2544QD.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TLV2544QD convient pour 6 applications: Industrial Sensor Interface, Battery-Powered Instrumentation, Temperature and Pressure Monitoring, Portable Diagnostic Equipment, Process Control Acquisition, Automotive Low-Speed Data Acquisition.
Industrial Sensor Interface
The TLV2544QD fits industrial sensor monitoring when four analog channels must be converted by one compact device. Its 12-bit resolution and 200 kSPS throughput provide adequate speed for temperature, pressure, level, and position sensing, while the 3 V to 5.5 V supply range supports common embedded rails. The four-channel architecture reduces package count and simplifies analog routing, but designers should verify input range, reference accuracy, and acquisition timing. Automatic power-down can reduce consumption during idle intervals, and the 16-SOIC footprint remains compatible with conventional surface-mount industrial control boards.
Recommandé
Battery-Powered Instrumentation
The TLV2544QD is appropriate for portable and battery-powered instrumentation because it combines four input channels with low-power operation and automatic power-down. A 3 V to 5.5 V supply range allows operation from regulated 3.3 V or 5 V rails, while the 200 kSPS throughput is more than adequate for many slow measurement loops. The principal design trade-off is confirming actual operating and power-down current from the manufacturer datasheet, since the supplied data does not provide numerical quiescent-current values. Use local decoupling and a stable reference layout to preserve measurement repeatability.
Recommandé
Temperature and Pressure Monitoring
The TLV2544QD can digitize several slow analog sensor outputs, including resistive temperature detectors, thermistors, bridge-based pressure sensors, and potentiometric position sensors. Four channels allow a compact monitoring node to combine multiple measurements, and 12-bit resolution is generally useful for coarse-to-moderate process monitoring. The ADC should be paired with suitable input conditioning, anti-alias filtering, and excitation circuitry. Before deployment, verify the permitted input voltage, source impedance, sampling dynamics, and whether the internal reference is sufficiently stable for the required measurement accuracy.
Recommandé
Portable Diagnostic Equipment
The TLV2544QD supports compact diagnostic and measurement equipment where several analog inputs are converted for display, logging, or analysis. Its 12-bit resolution, 200 kSPS maximum throughput, and four-channel input arrangement provide a practical balance between measurement capability and system size. The SOIC-16 package is straightforward to assemble on a mixed-signal PCB, while automatic power-down helps manage energy consumption in handheld systems. For medical or diagnostic equipment, do not infer regulatory suitability from the ADC specification; validate the complete signal chain, isolation requirements, and applicable quality documentation separately.
Recommandé
Process Control Acquisition
The TLV2544QD can serve as the acquisition front end in small process-control systems that monitor several analog process variables. A 200 kSPS conversion rate is suitable for many temperature, pressure, flow, and actuator-feedback loops, while the four analog inputs reduce the number of separate converters required. The design should account for settling time, sampling capacitor acquisition behavior, reference error, and input protection. Serial output simplifies connection to a controller, although the selected MCU or DSP must support the converter’s interface timing and operating levels.
Recommandé
Automotive Low-Speed Data Acquisition
The TLV2544QD is identified by Texas Instruments as an automotive-catalog 12-bit, 4-channel, 200 kSPS serial ADC, making it a candidate for low-speed vehicle sensing systems. Potential uses include cabin-condition monitoring, actuator-position feedback, and general-purpose analog signal acquisition, subject to the exact qualification and temperature requirements. The four-channel architecture and 16-SOIC package support compact control-unit layouts. Automotive deployment requires reviewing AEC-Q100 qualification, temperature grade, transient immunity, supply conditions, and any manufacturer-specific design guidance rather than relying only on the headline ADC specifications.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TLV2544QD — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | TLV2544QDRG4 | TLV2544CD | TLV2544QDG4 | TLV2544ID |
|---|---|---|---|---|---|
| Package | SOIC-16 (D) | SOIC-16 (D) | SOIC-16 (D) | SOIC-16 (D) | SOIC-16 (D) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Input Channels | 4 channels | 4 channels | 4 channels | 4 channels | 4 channels |
| Maximum Throughput | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS |
Principaux différenciateurs
- Four-channel integration (vs TLV2544QDRG4)
- Automotive-catalog positioning (vs TLV2544CD)
- Integrated low-power control (vs TLV2544ID)
- 200 kSPS conversion throughput (vs TLV2544QDG4)
Notes de conception
Route analog inputs away from switching nodes and digital clock lines. Keep the input traces short, use a continuous ground plane under the converter where appropriate, and place input and reference bypass capacitors close to their associated pins. Because the supplied data does not specify the recommended capacitor values, use the current TI datasheet and layout guidance rather than selecting values from generic ADC examples.
Decouple the 3 V to 5.5 V supply locally and keep the analog and digital return paths low-impedance. The TLV2544QD supports software and hardware automatic power-down, so the host controller should define a startup sequence and ensure that the power-down and wake-up timing meets the acquisition-cycle requirements. Verify the converter’s maximum supply voltage and power sequencing limits before applying a 5 V source.
Use a single continuous ground reference for analog inputs, reference circuitry, and digital control signals. If the source impedance is high, add an appropriate input buffer or RC network and confirm that the source can charge the SAR input capacitor during the acquisition interval. The supplied excerpts do not include the input-capacitance or acquisition-time values, so those parameters must be taken from the manufacturer datasheet.
Do not treat the 12-bit resolution and 200 kSPS headline specifications as complete timing or accuracy guarantees. Input overvoltage, reference noise, source impedance, clock jitter, serial timing, and PCB leakage can all affect the final measurement. Before substituting another TLV2544-family device, verify pin functions, temperature grade, AEC-Q100 status where applicable, and lifecycle availability in TI ordering information.
Informations de conformité
The verified manufacturer listing identifies TLV2544QD as an automotive-catalog device, but the supplied excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Confirm these items in the current TI product and environmental-compliance documentation.