MAX1364MEUB+ - 12-Bit 4-Ch 133ksps ADC with Window Comparator | Maxim Integrated
N.º da peça: MAX1364MEUB+ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.2 | $7,20 |
| 10 | $6.55 | $65,50 |
| 100 | $5.8 | $580,00 |
| 500 | $5.2 | $2.600,00 |
| 1.000 | $4.65 | $4.650,00 |
MAX1364MEUB+ Visão geral
What is a system-monitor ADC? A system-monitor ADC combines a precision analog-to-digital converter with a programmable threshold comparator and a digital alert interface. This class of ADC belongs to the broader hierarchy of data converters (ADC -> SAR ADC -> monitor ADC -> data acquisition IC -> signal chain IC -> semiconductor). Compared to a standalone SAR ADC, a system monitor offloads threshold detection to hardware, freeing the host MCU from continuous polling and reducing software overhead in supervisory and battery-monitoring designs.
Key features include 4 single-ended analog input channels with input range 0 to 5.5 V, 12-bit resolution, 133 ksps throughput, an internal 4.096 V reference, an integrated programmable window comparator, and an SMBus alert response output for interrupt-driven monitoring. The 10-pin microMAX package measures approximately 3 mm x 3 mm, enabling compact designs in space-constrained system-monitor boards.
The MAX1364MEUB+ uses a classic charge-redistribution SAR architecture with an input T/H and on-chip reference. Its window comparator is digitally programmable with upper and lower thresholds stored in on-chip registers, and the SMBus alert output implements the SMBALERT response protocol so multiple devices can share a single interrupt line. Quiescent current is kept low to suit always-on monitoring.
Typical applications include 12V lead-acid battery monitoring, multi-rail system-health supervision, server/PSU voltage tracking, and standalone threshold/alerting systems. The wide input range also supports industrial 24V bus monitoring when paired with external resistive dividers. When designing with this device, the SMBus alert line requires a pull-up resistor, and the analog inputs benefit from RC anti-alias filtering when monitoring high-impedance or noisy rails.
Alternativas drop-in para MAX1364MEUB+ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MAX1364MEUB+ (mesmo formato e footprint) — diferindo em Package, Resolution, Architecture, Sampling Rate, Input Voltage Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MAX1363MEUB+
✅ Drop-In✓ Em estoque
$4.34 / unidade
Ver ficha técnica →MAX1364MEUB+T
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX1364MEUB+ Classificações máximas e características elétricas
| Resolução | 12 bit |
| Number of Channels | 4 (single-ended) |
| Taxa de amostragem | 133 ksps |
| Faixa de tensão de entrada | 0 V to 5.5 V |
| Number of Inputs | 2 / 4 |
| Architecture | SAR |
| Internal Reference Voltage (MAX1364) | 4.096 V |
| Tensão de alimentação | 5 V (single supply) |
| Interface | SMBus-compatible / I2C-style serial |
| Programmable Window Comparator | Yes (digital threshold registers) |
| SMBus Alert Response | Yes |
| Encapsulamento | 10-pin microMAX/uSOP |
| Temperatura de operação | -40C to +85C |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do MAX1364MEUB+
| Pino 1 | AIN1 — Analog input channel 1 |
| Pino 2 | AIN2 — Analog input channel 2 |
| Pino 3 | AIN3 — Analog input channel 3 |
| Pino 4 | AIN4 — Analog input channel 4 |
| Pino 5 | GND — Ground |
| Pino 6 | REF — Reference voltage / bypass node |
| Pino 7 | VDD — +5V analog supply |
| Pino 8 | SCL — Serial clock input (SMBus) |
| Pino 9 | SDA — Serial data (SMBus) |
| Pino 10 | ALERT — SMBus alert response output (active low) |
Aplicações típicas
MAX1364MEUB+ é adequado para 6 aplicaçãos: 12V Lead-Acid Battery Monitoring, Multi-Rail System Health Supervision, Industrial 24V Bus Voltage Tracking, Server / PSU Voltage Tracking, Standalone Threshold and Alerting Systems, Portable Handheld Test Equipment.
12V Lead-Acid Battery Monitoring
The MAX1364MEUB+ suits 12V lead-acid battery monitoring because its 0-5.5 V input range directly accepts battery cell voltages after a resistive divider, and its 12-bit resolution gives 1.25 mV LSB with a 4.096 V reference - sufficient for state-of-charge estimation. The integrated window comparator lets the device flag under-voltage (deep discharge) and over-voltage (overcharge) events autonomously. Placed on the battery-management board, it streams cell voltages via SMBus and asserts /ALERT only on fault, eliminating continuous host polling. Compared to a discrete op-amp + ADC + MCU design, the MAX1364MEUB+ reduces component count to a single 10-pin IC.
Recomendado
Multi-Rail System Health Supervision
The MAX1364MEUB+ excels at multi-rail system-health supervision because its 4 single-ended input channels accept 3.3 V, 5 V, 12 V (via divider) and a temperature-sensor output simultaneously. With 133 ksps throughput, sequential rail scanning completes in well under 1 ms even at the maximum rate. The SMBus alert response lets multiple MAX1364MEUB+ devices share a single interrupt line to the host, simplifying firmware. In server backplanes and ATX PSU monitors, this ADC replaces several discrete comparators with one programmable, register-configurable solution.
Recomendado
Industrial 24V Bus Voltage Tracking
The MAX1364MEUB+ tracks industrial 24V bus rails when paired with an external resistive divider that scales 24 V into the 0-5.5 V input range. The 12-bit resolution provides ~1.25 mV LSB at full-scale 4.096 V reference, translating to roughly 7 mV resolution on the 24 V bus after divider scaling - adequate for brown-out detection. Its -40C to +85C industrial temperature rating matches PLC and factory-automation environments. Combined with the window comparator, the MAX1364MEUB+ asserts /ALERT when the bus sags below the brown-out threshold during motor inrush events.
Recomendado
Server / PSU Voltage Tracking
The MAX1364MEUB+ is well suited to server and PSU voltage tracking because its 4 channels can monitor 12 V, 5 V, 3.3 V, and -12 V rails (negative rail via biasing network) with a single 5 V supply. The 133 ksps throughput supports simultaneous multi-rail sampling at 1 ms intervals for telemetry. SMBus compatibility interfaces directly with BMC and PMBus controllers common in ATX and redundant PSUs. The integrated window comparator provides hardware-based OVP/UVP without burdening the BMC with real-time threshold checks.
Recomendado
Standalone Threshold and Alerting Systems
The MAX1364MEUB+ is ideal for standalone threshold and alerting systems because the integrated window comparator generates an interrupt signal autonomously when inputs cross programmed upper or lower limits. This frees small microcontrollers from continuous ADC polling, allowing them to sleep in low-power designs. The SMBus alert response protocol supports multiple MAX1364MEUB+ devices on a shared bus, each identified by its alert response address. Typical deployments include HVAC sensor fault detectors, battery chargers, and remote telemetry units that must wake the host only on real events.
Recomendado
Portable Handheld Test Equipment
The MAX1364MEUB+ fits portable handheld test equipment because its low quiescent current and 10-pin microMAX package minimize both battery drain and PCB area - critical for hand-held DMMs and field testers. The 12-bit resolution and 4.096 V reference provide adequate dynamic range for measuring sensor outputs, while the SMBus alert pin can directly drive a beeper or LED indicator when a measured value crosses thresholds. Combined with external input dividers, the MAX1364MEUB+ can accept up to 25 V inputs without damage, suiting technician-grade multimeters.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MAX1364MEUB+ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MAX1363MEUB+ | MAX1364MEUB+T |
|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 10-pin microMAX/uSOP | 10-pin microMAX/uSOP - same | 10-pin microMAX/uSOP - same |
| Resolution | 12 bit | 12 bit | 12 bit |
| Sampling Rate | 133 ksps | 133 ksps | 133 ksps |
| Number of Channels | 4 (single-ended) | 4 (single-ended) | 4 (single-ended) |
| Internal Reference Voltage | 4.096 V | 2.048 V (lower) | 4.096 V |
| Input Voltage Range | 0 V to 5.5 V | 0 V to 5.5 V | 0 V to 5.5 V |
| Window Comparator | Yes (programmable) | Yes (programmable) | Yes (programmable) |
| SMBus Alert Response | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Integrated window comparator with SMBus alert response (vs MAX1162ACUB+)
- 4.096V internal reference for 5V rail monitoring (vs MAX1363MEUB+)
- 4 single-ended channels in 10-pin microMAX (vs MAX1243ACPA)
Notas de projeto
The MAX1364MEUB+ requires a clean +5V analog supply on VDD (pin 7). Place a 10uF tantalum plus 0.1uF ceramic decoupling capacitor as close to VDD as possible to suppress digital switching noise from SDA/SCL transitions. The internal 4.096V reference is bypassed internally; add an external 0.1uF on the REF pin if long SMBus cables or noisy rails cause reference drift.
For high-impedance analog sources or noisy rails, add an RC anti-alias filter on each AIN input. A 100 ohm series resistor with 1nF ceramic to ground forms a ~1.6 kHz cutoff suitable for 133 ksps sampling. Keep AIN traces short and away from SDA/SCL digital traces to minimize crosstalk; route a ground guard ring around sensitive AIN pins.
Do not drive AIN inputs above 5.5V absolute maximum, even transiently, or the ESD diodes will latch up. Ensure the SMBus /ALERT line has a pull-up resistor (typically 10k to VDD); without it, the alert function cannot signal the host. When using the SMBus alert response protocol, ensure each MAX1364MEUB+ on the shared bus has a unique I2C address.
Informações de conformidade
RoHS compliant per Maxim Integrated product page. Not AEC-Q100 qualified; for automotive applications, an AEC-Q100 grade equivalent would be required.
