MAX11046ETN+TW - 16-Bit 8-Ch Simultaneous-Sampling 250ksps SAR ADC | Analog Devices
Référence : MAX11046ETN+TW ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.65 | $346,50 |
| 100 | $30.8 | $3 080,00 |
| 500 | $27.5 | $13 750,00 |
| 1 000 | $24.2 | $24 200,00 |
MAX11046ETN+TW Présentation
A successive-approximation-register ADC is a high-speed, deterministic data-acquisition building block within the broader data-converter category. SAR ADCs walk through internal capacitor-based reference ladders bit-by-bit per clock cycle, trading raw sampling rate for very low pipeline latency (typically one conversion cycle) and inherent anti-alias protection at the front-end sample-and-hold. This makes them preferred over delta-sigma ADCs when deterministic timing, fast multi-channel synchronization, or single-shot transient capture is required. The MAX11046ETN+TW extends this architecture with eight parallel T/H stages that sample simultaneously and hold while the shared ADC core sequences through conversions.
Key features include ±5 V bipolar input range, 250 ksps per channel simultaneous sampling, 16-bit resolution with no missing codes, an internal 4.096 V reference (or optional external reference), and offset-binary digital output coding. The MAX11046ETN+TW supports operating temperatures from -40 C to +85 C and is supplied in a thermal-pad-equipped 56-pin TQFN-EP package that improves thermal dissipation in dense PCB designs. The exposed-pad layout requires soldering the thermal pad to a copper pour for rated electrical and thermal performance.
Typical applications include three-phase power-line monitoring and motor control, multi-axis industrial process control, instrumentation, and any multi-channel data-acquisition system requiring deterministic, simultaneous sampling. The MAX11046 family is also widely used in power-quality analyzers and protective relay designs. The +TW suffix denotes the tape-and-reel packaging option for high-volume assembly. The MAX11046 EV kit PCB comes with a MAX11046ETN+ installed and can also evaluate the MAX11044, MAX11045, MAX11047, MAX11048, and MAX11049 family members.
When designing with this device, ensure each analog input is properly buffered when source impedance is significant, and keep digital traces isolated from analog traces to minimize coupling. Decouple AVDD and DVDD with low-ESR ceramic capacitors placed close to the supply pins, and connect the exposed thermal pad to a substantial ground plane for optimal thermal performance. The MAX11046ETN+TW is fully RoHS compliant per the manufacturer product page.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, providing actionable guidance for engineers selecting multi-channel simultaneous-sampling ADCs.
Alternatives de remplacement direct pour MAX11046ETN+TW — 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 :
MAX11044ETN+
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX11045ETN+
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX11047ETN+
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX11048ETN+
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX11049ETN+
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MAX11046ETN+TW Valeurs maximales et caractéristiques électriques
| Résolution | 16 bit |
| Number of Channels | 8 |
| Sampling Rate per Channel | 250 ksps |
| Architecture | SAR (Successive Approximation Register) |
| Input Type | Single-ended (8 channels, simultaneous sampling) |
| Data Interface | Parallel |
| Output Coding | Offset Binary |
| External Reference Support | Yes |
| Plage de température de fonctionnement | -40 C to +85 C |
| Boîtier | 56-TQFN-EP (8 mm x 8 mm) with exposed pad |
| Type de montage | Surface Mount |
| Packaging Option | Tape and Reel (TW suffix) |
| Statut RoHS | Compliant |
Guide de configuration des broches du MAX11046ETN+TW 56-tqfn-ep (8 mm x 8 mm) with exposed pad
Configuration des broches du MAX11046ETN+TW (boîtier 56-tqfn-ep (8 mm x 8 mm) with exposed pad). 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 MAX11046ETN+TW.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MAX11046ETN+TW convient pour 6 applications: Three-Phase Power Line Monitoring, Multi-Axis Motor Control, Multi-Channel Data Acquisition Systems, Power Quality Analyzers, Protective Relay Designs, Industrial Process Control Instrumentation.
Three-Phase Power Line Monitoring
The MAX11046ETN+TW's eight independent track-and-hold amplifiers enable zero-skew simultaneous capture of all three phase voltages and currents in a three-phase power monitoring system. Each T/H samples at the same instant, preserving phase relationships for accurate real-power, reactive-power, and harmonic-distortion calculations. The 250 ksps per channel aggregate rate supports EN 50160 and IEC 61000-4-30 power-quality measurements across multiple channels, and the 16-bit resolution captures dynamic range sufficient for both light-load and fault-current scenarios. Engineers typically pair the ADC with anti-alias RC filters per channel and an FPGA or DSP that performs the FFT analysis. Unlike delta-sigma ADCs, the SAR architecture provides deterministic single-cycle latency, enabling precise synchronization to the line frequency and protection-relay trip decisions within microseconds.
Recommandé
Multi-Axis Motor Control
Multi-axis motor drives require simultaneous feedback from multiple current and position sensors to compute field-oriented control (FOC) loops. The MAX11046ETN+TW captures all phase currents at zero inter-channel aperture delay, which is critical because any timing skew between current measurements directly injects torque ripple into the motor. At 250 ksps per channel and 16-bit resolution, the ADC resolves shunt currents with the bandwidth and accuracy needed for high-dynamic-range servo and BLDC drives. The parallel digital interface allows direct connection to an FPGA or motor-control DSP without serial-interface latency. The 56-TQFN-EP package's exposed thermal pad supports operation across industrial -40 C to +85 C ambient conditions found in motor-cabinet enclosures, and the RoHS-compliant bill of materials eases integration into global industrial designs.
Recommandé
Multi-Channel Data Acquisition Systems
General-purpose multi-channel data-acquisition (DAQ) cards for instrumentation and industrial process control benefit from the MAX11046ETN+TW's combination of 8 simultaneous-sampling inputs, 16-bit resolution, and 250 ksps per channel throughput. SAR architecture provides deterministic single-cycle latency, which simplifies real-time control loops and event-triggered capture compared to delta-sigma alternatives that introduce pipeline delay. The internal reference (or optional external reference for ratiometric measurements) supports a wide range of sensor front-ends including thermocouples, strain gauges, and 4-20 mA loops after signal conditioning. The 56-TQFN-EP package exposes a thermal pad that conducts heat away from the die, supporting dense PCB layouts where multiple channels concentrate in a small area.
Recommandé
Power Quality Analyzers
Power quality analyzers sample voltage and current waveforms at high bandwidth to characterize harmonics, flicker, and transients per standards such as IEC 61000-4-30 and IEEE 519. The MAX11046ETN+TW's eight independent T/H stages simultaneously capture all measurement channels, preserving the relative phase information needed for FFT-based harmonic analysis. 16-bit resolution delivers the dynamic range required to resolve low-order harmonics riding on top of a fundamental 50/60 Hz waveform without range switching. The 250 ksps per channel rate captures harmonics well above the 50th harmonic of 60 Hz fundamental, satisfying Class-A instrument requirements. The deterministic SAR latency also supports event-triggered transient capture, where the time of conversion is precisely known for fault-correlation and protective-relay forensics.
Recommandé
Protective Relay Designs
Numerical protective relays in substations sample current and voltage waveforms at high speed to decide whether to trip a circuit breaker within milliseconds. The MAX11046ETN+TW's simultaneous-sampling 8-channel SAR architecture eliminates inter-channel timing skew that would otherwise introduce errors in zone-1 distance calculations and differential protection comparators. At 250 ksps per channel and 16-bit resolution, the ADC captures the wide dynamic range required during fault events (where currents can spike 20-30x above nominal). The 56-TQFN-EP package operates across -40 C to +85 C ambient, supporting the substation thermal envelope. The parallel interface allows a substation controller or DSP to read conversion results with deterministic latency, which is essential for ANSI/IEEE C37.2 protective function timing budgets.
Recommandé
Industrial Process Control Instrumentation
Process-control front-ends such as distributed control systems (DCS) and programmable logic controllers (PLCs) interface with thermocouples, RTDs, strain gauges, pressure transducers, and flow meters across many channels. The MAX11046ETN+TW provides eight simultaneous-sampling inputs that can be conditioned and digitized without multiplexing artifacts, and the 16-bit resolution is sufficient for closed-loop process control where 0.1% measurement accuracy is required. The 250 ksps per channel rate supports vibration monitoring on rotating equipment, where bearing-impact transients occur on millisecond timescales. SAR latency ensures deterministic updates for control loops, and the 56-TQFN-EP package's small 8x8 mm footprint fits dense PLC I/O modules. RoHS compliance simplifies global deployment of process-control equipment.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MAX11046ETN+TW — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MAX11044ETN+ | MAX11045ETN+ | MAX11047ETN+ | MAX11048ETN+ | MAX11049ETN+ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 56-TQFN-EP (8x8 mm) | 56-TQFN-EP (8x8 mm) - same | 56-TQFN-EP (8x8 mm) - same | 56-TQFN-EP (8x8 mm) - same | 56-TQFN-EP (8x8 mm) - same | 56-TQFN-EP (8x8 mm) - same |
| Architecture | SAR with 8 T/H | SAR (MAX1104x family) | SAR (MAX1104x family) | SAR (MAX1104x family) | SAR (MAX1104x family) | SAR with 8 T/H |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (typical for family) | -40 C to +85 C (typical for family) | -40 C to +85 C (typical for family) | -40 C to +85 C (typical for family) | -40 C to +85 C (typical for family) |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Principaux différenciateurs
- True 8-channel simultaneous sampling via integrated independent T/H stages (vs Multiplexed-input 8-channel ADCs (e.g., sequential-channel SARs))
- Single-cycle SAR latency (vs Delta-sigma ADCs of similar channel count)
- Shared EV kit and PCB-compatible 56-TQFN-EP family footprint (vs MAX11044ETN+, MAX11045ETN+, MAX11047ETN+, MAX11048ETN+, MAX11049ETN+)
Notes de conception
Estimated: Decouple AVDD and DVDD with 0.1uF and 10uF ceramic capacitors placed within 5 mm of the supply pins. The MAX11046ETN+TW combines high-speed SAR switching with sensitive analog front-ends; clean analog and digital grounds must be separated at the IC and joined only at a single star-point near the ADC's exposed thermal pad to avoid coupling switching noise into the analog inputs.
The 56-TQFN-EP package dissipates heat through its exposed thermal pad. Solder the pad to a copper pour of at least 1 square inch on the top or inner PCB layer to achieve rated thermal performance. Without proper thermal pad soldering, junction temperature can rise and ADC accuracy degrades; designers should measure theta_JA on the actual PCB rather than relying on package-only figures.
Route analog input traces as short, guarded differential pairs when possible and keep digital output traces away from analog input pins. The simultaneous-sampling SAR architecture has eight analog input channels running into the same die; poor PCB layout will introduce channel-to-channel crosstalk. Use a continuous ground plane beneath the analog input traces and place anti-alias RC filters as close as possible to each input pin.
Source impedance drives input-settling behavior; if the source impedance exceeds the datasheet's recommended maximum, add a low-impedance buffer (op-amp or instrumentation amplifier) between the source and the ADC input. The MAX11046ETN+TW's input sampling capacitor must fully settle within the acquisition window, otherwise AC performance and channel-to-channel matching degrade. For 250 ksps operation, follow the manufacturer's acquisition-time guideline in the datasheet's timing characteristics table.
Do not leave the exposed thermal pad floating. Do not share analog and digital grounds inside the IC footprint - use star-ground topology. Verify the +TW suffix when designing for high-volume production - the tray-packaged MAX11046ETN+ is not compatible with standard tape-and-reel pick-and-place. Always confirm reference configuration (internal vs external) before board bring-up, as the external reference voltage directly sets the input full-scale range.
Informations de conformité
RoHS compliance per Analog Devices product page. AEC-Q100 automotive qualification status not stated in the provided web data - assume not_applicable for non-automotive parts. REACH, halogen-free, and conflict-minerals status were not present in the verified data and are marked unknown.
