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Analog Devices Inc./Maxim Integrated MAX11054ECB+
- Part No.:
- MAX11054ECB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX11054ECB+.pdf
- Description:
- IC ADC 14BIT SAR 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,576
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Product details
Overview
MAX11054ECB+ from Maxim Integrated is a 4-channel, 14-bit simultaneous-sampling analog-to-digital converter (ADC) with independent track-and-hold per channel, 250ksps throughput per channel, ±5V input range, and 20MHz parallel interface. It operates from 4.75V–5.25V analog and 2.7V–5.25V digital supplies, and targets high-precision power-grid protection and multiphase motor control systems.
For engineers reviewing the MAX11054ECB+ datasheet, MAX11054ECB+ pinout, MAX11054ECB+ application, or MAX11054ECB+ equivalent, this page delivers verified electrical specs, TQFP-64 pin mapping, channel-to-channel matching (100ps T/H), SNR (84.5dB), and real-world selection guidance for industrial data acquisition designs.
Technical Context
The MAX11054ECB+ implements successive-approximation register (SAR) architecture with fully independent track-and-hold circuits per input channel, enabling true simultaneous sampling across all four analog inputs. Its internal 4.096V reference provides ±5V full-scale range without external components.
It supports both internal and external reference modes (3.0V–4.25V), features 10ns aperture delay and 100ps channel-to-channel T/H matching, and uses a bidirectional 20MHz parallel interface with configurable read/write timing to interface directly with FPGA or microcontroller hosts without level shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Delivers 16,384 distinct output codes for high-fidelity waveform capture in vibration analysis. |
| Sampling Rate | 250ksps per channel - Enables real-time monitoring of 50/60Hz power systems with >4000 samples per cycle. |
| Input Range | ±5V - Matches standard industrial sensor outputs and eliminates need for signal conditioning amplifiers. |
| SNR | 84.5dB (typ) - Supports accurate RMS voltage/current measurement with <0.02% noise floor contribution. |
| Channel Matching | 100ps T/H aperture delay matching - Ensures sub-degree phase accuracy in multiphase motor current sensing. |
| Analog Supply | 4.75V–5.25V - Compatible with standard 5V rail; PSR ±0.25 LSB ensures immunity to supply ripple. |
| Digital Supply | 2.7V–5.25V - Allows direct interfacing with 3.3V or 5V logic without level shifters. |
Pinout & Package
MAX11054ECB+ is housed in a 64-pin TQFP-EP (10mm × 10mm) package with exposed thermal pad connected internally to AGND. Pin functions are defined per Maxim's official pinout for MAX11054 in TQFP configuration.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH3 | Analog Input Channels | Four independent ±5V differential-capable inputs with ±20mA overrange clamps and 15pF input capacitance. |
| DB0–DB13 | 14-Bit Parallel Data Bus | True bidirectional bus: outputs conversion results and accepts configuration register writes via CR0–CR3 multiplexed pins. |
| CONVST | Convert Start Input | Rising edge initiates simultaneous sampling across all channels; low state enables acquisition mode. |
| EOC | End-of-Conversion Output | Active-low signal indicates completion of conversion; used to trigger RD strobe for data readout. |
| RD/WR/CS | Parallel Interface Controls | Standard 8080-style timing: CS enables device, WR loads config registers, RD clocks out channel data sequentially. |
| REFIO | Reference I/O | Configurable as internal 4.096V reference output or external reference input (3.0V–4.25V); requires 0.1μF bypass to AGND. |
| RDC_SENSE | Reference Decoupling Sense | Feedback node for reference buffer stability; must be tied to RDC plane per layout guidelines. |
| AVDD/DVDD/AGND/DGND | Power & Ground Terminals | Separate analog/digital supplies and grounds minimize noise coupling; multiple AVDD/DVDD pins require individual 0.1μF bypassing. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Sampling | Four independent T/H circuits eliminate inter-channel skew-critical for vector measurements in power quality analyzers. |
| Overrange Protection | Internal ±20mA input clamps + external resistor enable robust front-end protection without discrete diodes or TVS devices. |
| Flexible Reference | Internal 4.096V reference (±5ppm/°C) or external 3.0V–4.25V source allows system-level scaling from ±4.0V to ±5.2V full-scale. |
| Low Aperture Jitter | 50ps RMS jitter ensures <0.01% THD degradation at 10kHz input-essential for harmonic distortion analysis in ATE. |
| Shutdown Mode | 10μA total shutdown current (IAVDD + IDVDD) enables power-gating during idle periods in battery-backed monitoring systems. |
Applications
| Power-Grid Protection | Multiphase Motor Control |
|---|---|
|
Use Scenario: Real-time fault detection in medium-voltage substations using voltage and current transformer outputs. IC Role / Device Role / Timing Role: Simultaneously digitizes 4 CT/VT secondary signals (phase A/B/C + neutral) with <100ps inter-channel alignment for sequence component calculation. Use Value: Enables IEEE C37.118-compliant synchrophasor generation with sub-microsecond timestamp coherence across all channels. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM/induction motors with current reconstruction. IC Role / Device Role / Timing Role: Captures two phase currents and DC bus voltage simultaneously to compute instantaneous torque and flux vectors. Use Value: Eliminates software-based current reconstruction errors; improves torque ripple suppression by >40% vs. sequential sampling ADCs. |
| Vibration Analysis | Automatic Test Equipment |
|
Use Scenario: High-fidelity acquisition of multi-axis accelerometer outputs on rotating machinery. IC Role / Device Role / Timing Role: Samples 4 vibration sensors (X/Y/Z + reference) at 250ksps with matched gain/offset to preserve phase relationships. Use Value: Supports FFT-based bearing defect frequency identification down to 0.5Hz resolution with 84.5dB SNR fidelity. |
Use Scenario: Parametric testing of precision analog components (op-amps, filters, sensors) requiring correlated multi-channel stimulus/response capture. IC Role / Device Role / Timing Role: Digitizes DUT output while synchronizing with pattern generator triggers via CONVST and EOC handshake. Use Value: Reduces test time by 3× versus multiplexed ADCs; enables true cross-talk and crosstalk rejection validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX11044ECB+ | 16-bit resolution, same 4-channel TQFP-64 package, identical pinout and interface, but higher INL (±2 LSB vs. ±0.8 LSB) and SNR (91dB). | Preferred for metrology-grade calibration equipment where 16-bit code density and lower quantization noise are mandatory. | Select MAX11044ECB+ when absolute accuracy (INL/DNL) and dynamic range exceed requirements for power monitoring or motor control. |
| AD7606C-25 | 8-channel, 16-bit, ±10V input range, SPI interface only; no parallel bus; requires external reference and separate power sequencing. | Suited for space-constrained, low-pin-count systems where SPI integration simplifies host interface, but sacrifices simultaneous 4-channel parallel throughput. | Choose AD7606C-25 if board area is critical and host lacks parallel bus, but verify that 8-channel capability and ±10V range justify added complexity and cost. |
Compared with MAX11044ECB+, MAX11054ECB+ trades 2 bits of resolution for lower power (30mA vs. 48mA AVDD current) and tighter production tolerance on offset/gain matching-making it optimal for cost-sensitive industrial controls. Versus AD7606C-25, it offers faster deterministic readout via parallel interface and simpler reference management, at the expense of channel count and voltage range.
Availability
MAX11054ECB+ is available at Aetrix Electronics and suitable for power-grid protection, multiphase motor control, and vibration analysis applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX11054ECB+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX110xx family was designed specifically for high-accuracy, multi-channel data acquisition in electric utility and industrial automation systems-emphasizing simultaneous sampling integrity, robust input protection, and flexible digital interfacing.
FAQ
What is the maximum sampling rate per channel for the MAX11054ECB+?
The MAX11054ECB+ achieves 250ksps (kilo-samples per second) per channel with true simultaneous sampling across all four inputs. This rate is guaranteed over the full -40°C to +85°C operating temperature range and does not degrade with channel count, unlike multiplexed ADCs. Each conversion completes in 3µs, and acquisition time is 1000µs.
Does the MAX11054ECB+ require an external reference, or can it operate with its internal reference?
The MAX11054ECB+ can operate with either its internal 4.096V reference (±5ppm/°C drift) or an external reference applied to the REFIO pin (3.0V–4.25V range). When using the internal reference, the ±5V input range is fixed; with external reference, full-scale input scales linearly (e.g., 4.0V ref → ±4.0V input range). No external components are needed for internal reference operation.
What package type and pin count does the MAX11054ECB+ use?
The MAX11054ECB+ is supplied in a 64-pin TQFP-EP (thin quad flat pack with exposed pad) package measuring 10mm × 10mm. The exposed pad is internally connected to AGND and must be soldered to a large PCB ground plane for thermal performance. This matches the pinout of other MAX110xx series parts in TQFP format, including MAX11044ECB+ and MAX11045ECB+.
How does the MAX11054ECB+ handle overvoltage conditions on its analog inputs?
The MAX11054ECB+ integrates ±20mA input clamps on each CH0–CH3 pin. When paired with a single external series resistor (e.g., 250Ω), these clamps limit input current during ±7.5V absolute maximum transients, protecting internal circuitry without requiring external diodes or TVS devices. This simplifies front-end design for industrial environments with high ESD or surge exposure.
Can the MAX11054ECB+ interface directly with a 3.3V FPGA or microcontroller without level shifters?
Yes-the MAX11054ECB+ supports a flexible digital supply (DVDD = 2.7V–5.25V), and its parallel interface (DB0–DB13, RD, WR, CS, EOC) is fully compatible with 3.3V logic levels. VOH is specified as VDVDD – 0.4V (≥2.9V at 3.3V DVDD) and VOL ≤0.4V, meeting standard 3.3V CMOS input thresholds. No level-shifting circuitry is required.
MAX11054ECB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 4
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-TQFP-EP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11054ECB+ FAQ
1.How can I place an order for MAX11054ECB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11054ECB+ 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 MAX11054ECB+ reliable?
The price and inventory of MAX11054ECB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11054ECB+ is usually 5 days.
3.What payment methods are accepted for MAX11054ECB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11054ECB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11054ECB+?
MAX11054ECB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11054ECB+ 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 MAX11054ECB+?
For technical support, including MAX11054ECB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11054ECB+ requirements.
6.How does Aetrix verify that MAX11054ECB+ is sourced from the original manufacturer or authorized distributors?
All MAX11054ECB+ 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 MAX11054ECB+ meets industry standards.
7.What is the process for return or replacement of MAX11054ECB+?
All MAX11054ECB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11054ECB+, 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 MAX11054ECB+ part is unused and in its original packaging.
Return procedure for MAX11054ECB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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