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Analog Devices Inc./Maxim Integrated MAX11046ECB+T
- Part No.:
- MAX11046ECB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX11046ECB+T.pdf
- Description:
- IC ADC 16BIT SAR 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,710
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Product details
Overview
MAX11046ECB+T from Maxim Integrated is a 16-bit, 8-channel simultaneous-sampling analog-to-digital converter (ADC) with independent track-and-hold per channel, 250ksps throughput per channel, ±5V input range, and 92.3dB SNR at 10kHz. It serves as the high-precision front-end digitizer in multiphase power monitoring and motor control systems requiring synchronized voltage/current acquisition.
For engineers reviewing the MAX11046ECB+T datasheet, MAX11046ECB+T pinout, MAX11046ECB+T application, or MAX11046ECB+T equivalent, this page delivers verified package mapping (64-pin TQFP-EP), confirmed pin functions (e.g., DB0–DB15, CONVST, EOC), channel-specific timing (3µs conversion time, 100ps channel-to-channel T/H matching), and real-world selection guidance against comparable 8-channel ADCs.
Technical Context
The MAX11046ECB+T implements a true simultaneous-sampling architecture using eight independent SAR ADCs and dedicated track-and-hold circuits - enabling coherent capture across all eight channels without inter-channel skew. Its internal 4.096V reference provides ±5V full-scale input range with ±5ppm/°C drift, while the 20MHz parallel interface supports deterministic readout of 16-bit results without protocol overhead.
It operates from separate 4.75V–5.25V analog and 2.7V–5.25V digital supplies, eliminating level-shifting needs for host MCU interfacing. Input overrange protection uses ±20mA internal clamps with external resistor limiting, and aperture delay is tightly controlled at 10ns with 100ps matching between channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 1 LSB = 152.6μV quantization step over ±5V range |
| Sampling Rate | 250ksps per channel - supports real-time waveform analysis up to 125kHz Nyquist bandwidth |
| SNR | 92.3dB at 10kHz - enables >15-bit effective resolution for clean signal capture |
| Channel Count | 8-channel - captures phase-aligned voltage/current across three-phase systems plus auxiliaries |
| Input Range | ±5V - directly interfaces with standard industrial signal conditioning outputs |
| Conversion Time | 3µs - ensures minimal dead time between sample initiation and data availability |
| Aperture Matching | 100ps channel-to-channel - preserves phase coherence critical for power quality analysis |
Pinout & Package
MAX11046ECB+T is housed in a 64-pin TQFP-EP (10mm × 10mm) package with exposed thermal pad connected internally to AGND. Pin assignments are optimized for low-noise analog/digital partitioning, with dedicated AVDD/AGND/AGNDS groups and separated DVDD/DGND rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7 | Analog Input Channels | Eight fully differential-capable inputs; each protected by ±20mA clamp diodes |
| DB0–DB15 | Parallel Data Bus | 16-bit bidirectional bus; outputs conversion result or accepts configuration register writes |
| CONVST | Convert Start Input | Rising edge initiates simultaneous sampling across all 8 channels |
| EOC | End-of-Conversion Output | Active-low signal indicates completion of full 8-channel conversion cycle |
| REFIO | Reference I/O | Internal 4.096V reference output or external reference input (3.0V–4.25V) |
| RDC / RDC_SENSE | Reference Decoupling | Connects to ≥80μF bulk capacitor bank; RDC_SENSE enables remote sensing for stability |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Sampling | Eight independent T/H + SAR blocks eliminate inter-channel timing skew for phase-critical measurements |
| High Input Impedance | ≥1GΩ input resistance minimizes loading on precision sensor signal chains |
| On-Chip Reference | Low-drift 4.096V reference (±5ppm/°C) enables stable ±5V full-scale operation without external components |
| Overrange Protection | Integrated ±20mA input clamps allow robust operation with simple series resistor limiting |
| Flexible Digital Supply | 2.7V–5.25V DVDD range permits direct interfacing with 3.3V or 5V microcontrollers |
Applications
| Automatic Test Equipment | Power-Grid Protection |
|---|---|
Use Scenario: High-speed functional testing of multi-output power supplies and programmable loads. IC Role / Device Role / Timing Role: Simultaneous digitization of up to eight voltage/current rails to verify cross-regulation and transient response. Use Value: 100ps channel-to-channel T/H matching ensures accurate correlation analysis between supply outputs. | Use Scenario: Real-time monitoring of line voltages and currents in substation relay protection units. IC Role / Device Role / Timing Role: Front-end ADC capturing synchronized 3-phase voltage and current waveforms for fault detection algorithms. Use Value: 250ksps per channel supports IEEE C37.118 synchrophasor compliance at 50/60Hz fundamental. |
| Multiphase Motor Control | Vibration and Waveform Analysis |
Use Scenario: Closed-loop field-oriented control (FOC) of industrial PMSM/induction motors with >8kHz PWM switching. IC Role / Device Role / Timing Role: Simultaneous sampling of three-phase currents and DC-link voltage for precise torque and flux estimation. Use Value: 3µs conversion time enables current loop execution within <5µs control cycle budget. | Use Scenario: Structural health monitoring using multi-axis accelerometer arrays on rotating machinery. IC Role / Device Role / Timing Role: Coherent acquisition of vibration signatures across multiple sensor axes for FFT-based spectral analysis. Use Value: 92.3dB SNR preserves dynamic range needed to resolve low-amplitude harmonics buried in noise floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7609BSTZ | 18-bit resolution, 200ksps/channel, SPI interface, single 5V supply only | Higher resolution but lower throughput; lacks flexible DVDD range and parallel interface speed | Select when absolute precision > speed, and host interface is SPI-constrained |
| ADS8689IPWR | 16-bit, 1MSPS single-channel SAR with integrated PGA and ±10.24V range; no simultaneous sampling | Designed for high-voltage single-ended inputs; requires external multiplexing for multi-channel use | Select for cost-sensitive, non-simultaneous applications with wide input range requirements |
Compared with AD7609BSTZ and ADS8689IPWR, the MAX11046ECB+T uniquely balances 16-bit accuracy, 8-channel simultaneity, 250ksps throughput, and 20MHz parallel readout - making it optimal for real-time power electronics control where timing coherence and deterministic latency are non-negotiable.
Availability
MAX11046ECB+T is available at Aetrix Electronics and suitable for automatic test equipment, power-grid protection relays, and multiphase motor control systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX11046ECB+T 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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications applications.
The MAX11046ECB+T belongs to Maxim's precision simultaneous-sampling ADC family, engineered specifically for high-fidelity acquisition in power quality monitoring, motor drive feedback, and automated test instrumentation.
FAQ
What is the maximum sampling rate per channel for the MAX11046ECB+T?
The MAX11046ECB+T achieves 250ksps per channel with true simultaneous sampling across all eight inputs. This rate is guaranteed under specified conditions: VAVDD = 4.75V–5.25V, VDVDD = 2.7V–5.25V, TA = –40°C to +85°C, and fSAMPLE = 250ksps. The 3µs conversion time enables deterministic timing for real-time control loops.
Does the MAX11046ECB+T require an external reference voltage?
No - the MAX11046ECB+T includes a low-drift internal 4.096V reference that supports ±5V full-scale input range. However, it also accepts external references from 3.0V to 4.25V via the REFIO pin, enabling custom full-scale ranges from ±4.0V to ±5.2V. The internal reference exhibits ±5ppm/°C temperature coefficient and 4.08V–4.112V initial tolerance.
What package type is used for the MAX11046ECB+T?
The MAX11046ECB+T uses 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 optimal thermal performance and noise immunity.
How does the MAX11046ECB+T handle input overvoltage conditions?
The MAX11046ECB+T integrates ±20mA input clamps on each CH0–CH7 pin. When paired with an external series current-limiting resistor, these clamps protect the internal circuitry from overvoltage transients up to ±7.5V relative to AGND, as specified in the Absolute Maximum Ratings table.
Can the MAX11046ECB+T operate with a 3.3V digital supply?
Yes - the MAX11046ECB+T supports DVDD from 2.7V to 5.25V, including standard 3.3V logic levels. At VDVDD = 3.3V, typical digital supply current is 7.0mA during conversion (for MAX11046/MAX11046B), and the parallel interface remains fully compatible with 3.3V microcontrollers without level shifters.
MAX11046ECB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 8
- 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:
- -
MAX11046ECB+T FAQ
1.How can I place an order for MAX11046ECB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11046ECB+T 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 MAX11046ECB+T reliable?
The price and inventory of MAX11046ECB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11046ECB+T is usually 5 days.
3.What payment methods are accepted for MAX11046ECB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11046ECB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11046ECB+T?
MAX11046ECB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11046ECB+T 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 MAX11046ECB+T?
For technical support, including MAX11046ECB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11046ECB+T requirements.
6.How does Aetrix verify that MAX11046ECB+T is sourced from the original manufacturer or authorized distributors?
All MAX11046ECB+T 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 MAX11046ECB+T meets industry standards.
7.What is the process for return or replacement of MAX11046ECB+T?
All MAX11046ECB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11046ECB+T, 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 MAX11046ECB+T part is unused and in its original packaging.
Return procedure for MAX11046ECB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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