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Analog Devices Inc./Maxim Integrated MAX1154BEUE+
- Part No.:
- MAX1154BEUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1154BEUE+.pdf
- Description:
- IC ADC 10BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:278
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Product details
Overview
MAX1154BEUE+ from Maxim Integrated is a stand-alone, 10-channel (8 external + 2 internal) 10-bit system monitor ADC with integrated 4.096V reference, remote diode temperature sensing capability, and autonomous fault detection logic. It operates from a single 4.5V to 5.5V supply, achieves ±0.5 LSB INL, ±2.5°C internal temperature accuracy over –40°C to +85°C, and supports programmable averaging and fault-cycle counting for robust system supervision in telecom and server applications.
For engineers reviewing the MAX1154BEUE+ datasheet, MAX1154BEUE+ pinout, MAX1154BEUE+ application, or MAX1154BEUE+ equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support details specific to this 16-pin TSSOP variant.
Technical Context
The MAX1154BEUE+ implements a fully differential SAR ADC with on-chip track-and-hold, supporting both unipolar single-ended and bipolar/unipolar differential input configurations across AIN0–AIN7. Its internal reference is fixed at 4.096V, enabling precise voltage monitoring without external components.
Autonomous operation is enabled by dedicated digital comparators per channel, programmable upper/lower thresholds, fault-cycle counters (1–15), and recursive averaging (2–128 samples). Conversion timing is configurable via sample wait intervals, with typical conversion times of 46µs for temperature and 10.6µs for voltage measurements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for precise analog-to-digital conversion of voltage and temperature signals. |
| INL / DNL | ±0.5 LSB - ensures monotonicity and <0.05% full-scale error, critical for accurate threshold-based alarm triggering. |
| Internal Temp Accuracy | ±2.5°C over –40°C to +85°C - enables reliable on-die thermal monitoring without calibration in industrial environments. |
| Supply Range | 4.5V to 5.5V - matches standard 5V system rails and eliminates need for LDO regulation in 5V-powered infrastructure. |
| Reference Voltage | 4.096V internal - provides stable, factory-trimmed reference for consistent 10-bit measurement scaling across temperature and supply variation. |
| Max Sample Rate | 94ksps (single-channel auto mode) - supports high-speed transient detection in power-supply or thermal fault scenarios. |
| Shutdown Current | <8µA at 50sps - enables ultra-low-power operation in battery-backed or energy-constrained remote monitoring nodes. |
Pinout & Package
MAX1154BEUE+ is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch), optimized for high-density PCB layouts and thermal performance in multichannel monitoring systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN7 | Configurable analog inputs | Support single-ended voltage sensing or differential remote diode temperature measurement (e.g., AIN0+/AIN1−); each pair enables noise-rejecting thermal reads up to 10m cable length. |
| REF | Reference input/output | Outputs 4.096V internal reference; must be left open when internal ref is used - no external capacitor required, simplifying BOM. |
| INT | Interrupt output | Push-pull or open-drain active-low signal asserts when any monitored channel exceeds programmed thresholds, directly interfacing with µC interrupt pins. |
| DOUT / DIN / SCLK / CS | 4-wire SPI-compatible interface | Enables configuration and readback using standard microcontroller SPI peripherals; CS-controlled tri-state DOUT prevents bus contention. |
| VDD / GND | Power and ground | Single 4.5–5.5V supply with local 0.1µF bypassing - eliminates dual-rail requirements and reduces layout complexity. |
Key Features
| Feature | Design Value |
|---|---|
| Stand-alone monitoring | Zero µC interaction required - autonomous scanning, threshold comparison, and interrupt generation enable true "set-and-forget" system supervision. |
| Programmable fault counter | 1–15 fault cycles before interrupt - suppresses false alarms from transient noise spikes while preserving response to sustained faults. |
| Differential remote temperature sensing | Supports MMBT3904 or equivalent diode sensors with ±5°C accuracy (differential mode) - enables accurate board-level thermal mapping over long interconnects. |
| Recursive digital averaging | 2–128-sample averaging per channel - reduces effective noise floor without external RC filtering, improving SNR in electrically noisy telecom enclosures. |
| VDD/2 monitor channel | Dedicated internal rail monitor - provides direct measurement of half-supply voltage for precision VDD tracking without external resistor dividers. |
Applications
| Telecom Power Shelf Monitoring | Server CPU Voltage Rail Supervision |
|---|---|
|
Use Scenario: Real-time monitoring of +48V DC-DC converter outputs, backup battery voltage, and shelf ambient temperature in carrier-grade remote telecom cabinets. IC Role / Device Role / Timing Role: Stand-alone ADC performs autonomous 10-channel scan every 100ms, compares against hard-coded thresholds, and triggers INT to shelf controller only on violation. Use Value: Eliminates host µC polling overhead and reduces firmware complexity; ±2.5°C internal temp accuracy ensures thermal derating decisions reflect actual silicon junction conditions. |
Use Scenario: Continuous supervision of VRM output voltages (1.8V, 1.2V, 0.9V), CPU die temperature via diode sensor, and VDDQ supply in dual-socket server motherboards. IC Role / Device Role / Timing Role: Configured for 8 external voltage channels + internal VDD/2 + internal temp; uses differential AIN0/AIN1 for remote CPU diode sensing. Use Value: 4.096V internal reference ensures stable 10-bit resolution across 4.5–5.5V supply range; programmable averaging rejects switching noise from adjacent VRMs. |
| Industrial Remote Data Logger | Network Equipment Thermal Management |
|
Use Scenario: Battery-powered environmental logger measuring 8 external thermistors (temperature), 1 pressure transducer (voltage), and internal battery voltage in oil-field telemetry units. IC Role / Device Role / Timing Role: Operates in low-power mode (50sps, <8µA), stores averaged results in registers, and wakes host µC only on threshold breach via INT pin. Use Value: Ultra-low shutdown current extends battery life; internal 4.096V reference removes need for precision external reference, reducing component count and cost. |
Use Scenario: Thermal monitoring of FPGA, ASIC, and power MOSFET hotspots in 1RU network switches using remote diode sensors placed near critical ICs. IC Role / Device Role / Timing Role: Uses AIN2/AIN3 and AIN4/AIN5 differential pairs for two independent remote diode channels; configures fault counter to 3 cycles to ignore brief thermal transients. Use Value: ±5°C differential external temp accuracy (–40°C to +85°C) enables reliable hotspot detection; 16-pin TSSOP footprint allows placement near heat sources without routing congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar system-monitoring ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1153BEUE+ | 2.7–3.6V supply range; 2.5V internal reference; ±3.0°C internal temp accuracy | Targeted for 3V systems (e.g., portable test equipment); lower supply voltage incompatible with 5V infrastructure | Select MAX1153BEUE+ only for 3V designs requiring identical feature set but lower operating voltage. |
| ADS1015IDGSR | I²C interface; 12-bit resolution; no internal temp sensor; requires external reference or uses VDD as ref | Lacks autonomous interrupt logic and internal temperature monitoring; relies on host processor for polling and threshold evaluation | Choose ADS1015IDGSR when I²C bus availability and higher resolution outweigh need for stand-alone operation and thermal sensing. |
Compared with MAX1154BEUE+, MAX1153BEUE+ serves 3V systems with looser thermal accuracy, while ADS1015IDGSR trades autonomous functionality for I²C simplicity and extra resolution - neither offers drop-in replacement due to supply, interface, or feature mismatches.
Availability
MAX1154BEUE+ is available at Aetrix Electronics and suitable for telecom power shelf monitoring, server CPU voltage rail supervision, and industrial remote data loggers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX1154BEUE+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, communications, and computing applications, with emphasis on integration, reliability, and low-power operation.
The MAX1153/MAX1154 product line was engineered specifically for autonomous multichannel system supervision - combining high-accuracy ADCs, intelligent threshold logic, and flexible sensor interfaces into compact TSSOP packages for infrastructure monitoring.
FAQ
What is the maximum sampling rate of the MAX1154BEUE+ in single-channel auto mode?
The MAX1154BEUE+ achieves a maximum sampling rate of 94ksps in single-channel auto mode. This high throughput enables rapid detection of voltage sags or thermal transients in mission-critical 5V systems such as telecom power shelves. The device maintains ±0.5 LSB INL and full 10-bit resolution at this rate, ensuring fidelity during fast events without sacrificing accuracy.
Does the MAX1154BEUE+ require an external reference voltage?
No, the MAX1154BEUE+ does not require an external reference voltage - it integrates a precision 4.096V internal reference with ±30ppm/°C temperature coefficient and <160μVRMS noise. When using the internal reference, the REF pin must be left open, eliminating external components and simplifying layout. External reference mode is optional and supports 1.0V to VDD+0.05V inputs.
How does the MAX1154BEUE+ support remote temperature sensing?
The MAX1154BEUE+ supports remote temperature sensing via differential input pairs (AIN0/AIN1, AIN2/AIN3, etc.) that bias and measure diode-connected transistors like the MMBT3904. In differential mode, it achieves ±5°C accuracy from –40°C to +85°C over 10m cable runs. The device handles sensor bias current internally (4–66μA range), removing the need for external current sources.
What power-saving features does the MAX1154BEUE+ offer?
The MAX1154BEUE+ implements AutoShutdown™, reducing supply current to 190µA at 2ksps and <8µA at 50sps. It also supports programmable sample wait intervals and recursive averaging to minimize active time. These features enable multi-year battery life in remote data loggers while maintaining full 10-bit resolution and autonomous interrupt capability.
Can the MAX1154BEUE+ monitor its own supply voltage?
Yes, the MAX1154BEUE+ includes a dedicated internal VDD/2 monitor channel that measures half the supply voltage with ±2.5% accuracy. This allows direct, ratiometric tracking of the 4.5–5.5V supply without external resistive dividers. The result is stored alongside other channel data and participates in autonomous threshold comparison and interrupt generation.
MAX1154BEUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 94k
- Number of Inputs:
- 10
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1154BEUE+ FAQ
1.How can I place an order for MAX1154BEUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1154BEUE+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1154BEUE+ reliable?
The price and inventory of MAX1154BEUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1154BEUE+ is usually 5 days.
3.What payment methods are accepted for MAX1154BEUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1154BEUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1154BEUE+?
MAX1154BEUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1154BEUE+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1154BEUE+?
For technical support, including MAX1154BEUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1154BEUE+ requirements.
6.How does Aetrix verify that MAX1154BEUE+ is sourced from the original manufacturer or authorized distributors?
All MAX1154BEUE+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1154BEUE+ meets industry standards.
7.What is the process for return or replacement of MAX1154BEUE+?
All MAX1154BEUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1154BEUE+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1154BEUE+ part is unused and in its original packaging.
Return procedure for MAX1154BEUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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