MAX1363MEUB+T - 12-Bit 4-Ch 133ksps SAR ADC | Analog Devices
N.º de pieza: MAX1363MEUB+T ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.42 | $6,42 |
| 10 | $5.78 | $57,80 |
| 100 | $4.95 | $495,00 |
| 500 | $4.21 | $2.105,00 |
| 1.000 | $3.62 | $3.620,00 |
MAX1363MEUB+T Descripción general
A successive-approximation register (SAR) ADC is a precision data converter that uses a binary-search algorithm against an internal DAC to resolve an analog input to N-bit accuracy in N conversion clock cycles. ADCs of this type sit in the measurement-and-monitoring tier of the data-converter hierarchy (SAR ADC -> ADC -> data converter -> signal chain IC -> semiconductor). The MAX1363's specific subcategory - a system monitor - adds autonomous threshold comparison and a SMBus alert output, removing the burden of host-polled conversions in supervisory loops.
Key features include a factory-trimmed 2.048V internal reference (giving 0.5mV per LSB at 12 bits), ±0.5 LBN integral non-linearity (INL), a single 3V to 3.6V analog supply, low 0.5mA operating supply current, and a programmable window comparator that asserts an interrupt when an input crosses user-configured thresholds. Communication is via a 2-wire SMBus-compatible interface operating up to 400kHz, and the device supports an extended -40°C to +85°C industrial temperature range.
The MAX1363 differs from the sibling MAX1364 only in reference voltage (2.048V vs 4.096V); both occupy the same 10-pin µMAX footprint, so a design using the MAX1363 can be re-targeted to higher-voltage inputs by substituting the MAX1364 with no PCB rework. An internal 4MHz oscillator drives successive approximation, and the analog input structure supports true-rail inputs on the AIN pins when properly configured.
Typical applications include 12-bit system monitoring with threshold alerting, single-supply data acquisition front-ends, digital panel meters, battery-powered supervisory boards, and SMBus-managed analog sensor interfaces. Because of its alert pin and programmable thresholds, it is especially useful when the host MCU cannot continuously poll each input.
When designing with this device, ensure the 2.048V reference accuracy is acceptable for your LSB resolution (0.5mV/LSB) before deciding between the MAX1363 (2.048V) and MAX1364 (4.096V, 1mV/LSB). Note that 10-bit pin-compatible MAX1361/MAX1362 alternates can be used when 12-bit resolution is not required.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para MAX1363MEUB+T — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MAX1363MEUB+T (mismo factor de forma y huella) — difiere en Package, Operating Temperature Range, Window Comparator, Resolution, Sampling Rate.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MAX1363MEUB+
✅ Sustitución directa✓ En stock
$4.34 / unidad
Ver hoja de datos →MAX1364MEUB+T
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX1364MEUB+
✅ Sustitución directa✓ En stock
$4.65 / unidad
Ver hoja de datos →MAX1361MEUB+T
✅ Sustitución directa✓ En stock
$3.41 / unidad
Ver hoja de datos →MAX1362MEUB+T
✅ Sustitución directa✓ En stock
$3.96 / unidad
Ver hoja de datos →MAX1363MEUB+T Valores máximos y características eléctricas
| Resolución | 12 bits |
| Number of Input Channels | 2 or 4 single-ended |
| Architecture | SAR (Successive Approximation) |
| Frecuencia de muestreo | 133 ksps |
| Internal Reference | 2.048 V |
| Analog Supply Voltage | 3 V to 3.6 V |
| Operating Supply Current | 0.5 mA (typical, max value not in provided data) |
| Digital Interface | SMBus-compatible, up to 400 kHz |
| Window Comparator | Programmable, with interrupt/alert output |
| Rango de temperatura de funcionamiento | -40 °C to +85 °C (extended industrial) |
| Encapsulado | 10-pin µMAX (uSOP) |
| Tipo de montaje | Surface Mount |
| Conversion Method | Proprietary SAR |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Number of Terminals | 10 |
Guía de configuración de pines de MAX1363MEUB+T 10-pin µmax (usop)
Configuración de pines para MAX1363MEUB+T (encapsulado 10-pin µmax (usop)). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para MAX1363MEUB+T.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MAX1363MEUB+T es adecuado para 7 aplicacións: 12-Bit System Monitor with Threshold Alerting, Battery-Powered Supervisory Boards, Digital Panel Meters and Instrumentation, Industrial Sensor Interface with SMBus Backplane, Automotive ECU Auxiliary Monitoring, Thermal and Power Rail Threshold Supervisor, Compact Data Acquisition Front-End for Embedded Linux.
12-Bit System Monitor with Threshold Alerting
The MAX1363MEUB+T's 133 ksps SAR core plus its programmable window comparator makes it ideal for autonomous 4-channel system monitoring where the host MCU must be freed from constant ADC polling. With a 2.048 V internal reference giving 0.5 mV/LSB at 12 bits, supply rails and analog sensor outputs can be supervised at sub-millivolt precision. The MAX1363 asserts the ALERT pin when any channel crosses user-configured upper or lower thresholds. Typical implementation places it on a 3.3 V supervisor rail with 0.1 µF bypass caps and a 2 kΩ SMBus pullup. Design trade-off: SMBus reads take ~10 µs per channel, so time-critical loops should rely on the threshold comparator rather than continuous polling.
Recomendado
Battery-Powered Supervisory Boards
The MAX1363MEUB+T's 0.5 mA typical operating current and 3.0 V to 3.6 V single supply make it well suited to battery-powered boards where every milliamp of standby current matters. Its programmable monitor mode lets a host MCU sleep while the MAX1363 watches voltage and temperature channels on the SMBus, waking the MCU only on a threshold interrupt. The 2.048 V internal reference is suitable for Li-ion cell stacks (3.0 V to 4.2 V per cell) with an external resistor divider. Trade-off: at full 133 ksps and 3.6 V the part draws roughly 2 mA, so design for duty-cycled monitor mode in deeply battery-constrained products.
Recomendado
Digital Panel Meters and Instrumentation
Front-panel digital meters need a 12-bit ADC with a stable internal reference, which is exactly what the MAX1363MEUB+T provides via its 2.048 V factory-trimmed reference and 12-bit SAR core. One µMAX-10 ADC can scan four display channels - voltage, current, temperature, and a user input - through a SMBus-controlled rotary switch. The 0.5 mV/LSB resolution at 2.048 V is comfortably readable for ±2 V inputs without an external amplifier. Trade-off: the 2-wire SMBus interface suits microcontroller-driven displays rather than purely analog readouts, so a host MCU is required.
Recomendado
Industrial Sensor Interface with SMBus Backplane
Industrial sensor nodes built on SMBus or I²C backplanes benefit from the MAX1363MEUB+T's 2-wire interface and address-select pins that allow up to four devices on the same bus. Each node can monitor four analog sensors (such as 4-20 mA loops, thermocouples with biasing, or RTDs) and flag out-of-range conditions over a shared ALERT line. The 133 ksps sample rate captures transient sensor events that slower ADCs would miss. Trade-off: the 10-pin µMAX PCB area is small but does not include an exposed thermal pad, so high-ambient-temperature enclosures need explicit de-rating.
Recomendado
Automotive ECU Auxiliary Monitoring
While the MAX1363 is rated to the -40 °C to +85 °C industrial range rather than AEC-Q100, it is widely used in non-safety-critical ECU auxiliary monitoring where four slow analog inputs need threshold supervision (e.g., body-control modules, infotainment power rails, and interior lighting diagnostics). Its SMBus alert output can interrupt an MCU on a single undervoltage or overvoltage event without polling overhead. Designers should derate the analog supply to 3.3 V ±5% to survive automotive transients when paired with external TVS protection. Trade-off: an AEC-Q100-qualified part is required for safety-critical 12-bit monitoring under the hood.
Recomendado
Thermal and Power Rail Threshold Supervisor
The MAX1363MEUB+T is well matched to power-rail threshold supervision tasks where four rails (such as 1.2 V core, 1.8 V DDR, 3.3 V IO, and 5 V auxiliary) need undervoltage and overvoltage detection. Set the MAX1363's programmable window comparator with upper and lower SMBus-written thresholds for each rail, and the ALERT output fires when any rail drifts out of specification. The factory-trimmed 2.048 V reference eliminates drift in supervision thresholds over time. Trade-off: the input range is bounded by the 2.048 V reference, so high-voltage rails (12 V, 24 V) need an external resistor divider.
Recomendado
Compact Data Acquisition Front-End for Embedded Linux
Embedded Linux boards running on Raspberry Pi-class or BeagleBone-class SoCs typically lack native 12-bit ADCs, so a MAX1363MEUB+T on the I²C bus provides four 12-bit analog inputs through a kernel driver. Its 2.048 V reference is stable enough for hobbyist-grade home automation and weather stations without precision analog front ends. The 10-pin µMAX footprint fits a sub-$0.50 BOM add-on board. Trade-off: only four channels, and the 133 ksps rate is overkill for slow sensor sampling; the 10-bit MAX1361 shares the same footprint for lower-cost designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MAX1363MEUB+T — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MAX1363MEUB+ | MAX1364MEUB+T | MAX1364MEUB+ | MAX1361MEUB+T | MAX1362MEUB+T |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 10-pin µMAX (uSOP) | 10-pin µMAX (uSOP) - same | 10-pin µMAX (uSOP) - same | 10-pin µMAX (uSOP) - same | 10-pin µMAX (uSOP) - same | 10-pin µMAX (uSOP) - same |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 10 bits | 10 bits |
| Internal Reference | 2.048 V | 2.048 V | 4.096 V | 4.096 V | 2.048 V | 4.096 V |
| Interface | SMBus/I²C up to 400 kHz | SMBus/I²C up to 400 kHz | SMBus/I²C up to 400 kHz | SMBus/I²C up to 400 kHz | SMBus/I²C (per datasheet family) | SMBus/I²C (per datasheet family) |
| Packaging Form | Tape & Reel | Tube | Tape & Reel | Tube | Tape & Reel | Tape & Reel |
Diferenciadores clave
- 2.048 V internal reference gives 0.5 mV/LSB at 12 bits (frente a MAX1364MEUB+T)
- True pin-compatible upgrade path to 10-bit families (frente a MAX1361MEUB+T / MAX1362MEUB+T)
- Programmable window comparator with alert output (frente a Generic 12-bit SAR ADC without alert pin)
Notas de diseño
Estimated: The MAX1363MEUB+T draws roughly 0.5 mA from a 3.3 V analog supply during continuous conversion. Place a 0.1 µF X7R ceramic bypass capacitor within 5 mm of the supply pin and a 10 µF bulk capacitor at the board entry. For SMBus pull-ups, choose 2 kΩ to 5 kΩ depending on bus length; the MAX1363 supports the standard I²C 400 kHz mode.
Use shielded twisted pairs or short PCB traces from the analog inputs to the AIN pins, and route these traces away from switching nodes. A 100 Ω series resistor with a 1 nF to 10 nF RC filter on each input helps block RF interference; the SMBus alert is internally debounced, but the analog comparators may trigger on RF if filtering is omitted.
Do not exceed the analog input voltage range relative to ground; the 2.048 V internal reference on the MAX1363 means inputs must be scaled to stay within 0 V to VREF (after the divider). For higher-voltage inputs (such as 12 V rails), select the MAX1364MEUB+T (4.096 V reference) or add a resistor divider. Also note that the SMBus address-select pins influence multiple bits - consult the MAX1363/MAX1364 datasheet for the correct address pinning when more than one part is placed on the same bus.
Estimated: Keep the analog and digital sections of the PCB physically separated. Route the analog supply trace directly to the MAX1363MEUB+T's AVDD pin with a ferrite bead from the system 3.3 V, and place the bypass cap on the AVDD side of the bead to reduce digital switching noise coupling into the SAR reference. A solid ground plane under the part further reduces analog-input noise pickup.
Información de cumplimiento
RoHS, REACH, lead-free, halogen-free, and conflict-minerals status are not explicitly listed in the verified web data for the MAX1363MEUB+T. XAIPART recommends checking the Analog Devices material declaration sheet before RoHS-mandated design-in. The part is rated to -40 °C to +85 °C industrial extended range, not AEC-Q100 automotive.
