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Analog Devices Inc./Maxim Integrated MAX11057ECB+T
- Part No.:
- MAX11057ECB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX11057ECB+T.pdf
- Description:
- IC ADC 14BIT SAR 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
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Product details
Overview
The MAX11057ECB+T from Maxim Integrated is a 14-bit, 4-channel simultaneous-sampling analog-to-digital converter (ADC) with independent track-and-hold per channel, 250ksps throughput per channel, 0–5V input range, and internal 4.096V reference. It operates from 4.75V–5.25V analog and 2.7V–5.25V digital supplies, and is used in multiphase motor control and power-grid protection systems requiring synchronized voltage/current acquisition.
For engineers reviewing the MAX11057ECB+T datasheet, MAX11057ECB+T pinout, MAX11057ECB+T application, or MAX11057ECB+T equivalent, this page delivers verified electrical specs, package mapping to 64-pin TQFP-EP, channel-to-channel matching data (100ps T/H), SNR (84.5dB), and real-world selection guidance against functionally aligned alternatives.
Technical Context
This ADC implements SAR architecture with dedicated track-and-hold circuitry for each of its four analog inputs, enabling true simultaneous sampling without inter-channel skew. Its 20MHz bidirectional parallel interface supports high-speed host readout without FIFO buffering.
It features dual-supply operation (AVDD and DVDD), internal clock generation, and flexible reference options-either the low-drift 4.096V internal reference or an external 3.0V–4.25V source-enabling precise full-scale ranges from +3.7V to +5.2V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Provides 16,384 discrete output codes for high-fidelity waveform digitization in vibration analysis and power monitoring. |
| Sampling Rate | 250ksps per channel - Enables real-time capture of 50/60Hz power harmonics up to the 5th order with oversampling margin. |
| Input Range | 0 to +5V - Matches standard industrial sensor outputs and eliminates need for external level-shifting circuitry. |
| Channel Matching | ±100ps T/H aperture delay matching - Ensures sub-degree phase alignment across all 4 channels for accurate multiphase angle computation. |
| SNR | 84.5dB (typ) at 10kHz - Delivers >13.7 effective number of bits (ENOB) for precision measurement in automatic test equipment. |
| Reference | 4.096V internal (±4ppm/°C) - Enables stable 0–5V full-scale conversion without external reference component or layout sensitivity. |
| Supply Range | AVDD: 4.75–5.25V; DVDD: 2.7–5.25V - Allows direct interfacing with 3.3V or 5V microcontrollers without level shifters. |
Pinout & Package
MAX11057ECB+T is housed in a 64-pin TQFP-EP (10mm × 10mm) package with exposed pad connected internally to AGND. Thermal performance is optimized via PCB ground plane connection to the EP.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH3 | Analog Input Channels | Four independent, overrange-protected (±20mA clamp) inputs accepting 0–5V; each with dedicated track-and-hold for simultaneous sampling. |
| DB0–DB15 | Bidirectional Parallel Data Bus | 16-bit bus for reading conversion results or writing configuration register bits (CR0–CR3); supports 20MHz timing for high-throughput readout. |
| CONVST | Convert Start Input | Rising edge initiates conversion on all channels simultaneously; low state enables acquisition mode with 1µs acquisition time. |
| EOC | End-of-Conversion Output | Active-low signal indicates completion of all 4 conversions; used for interrupt-driven host synchronization. |
| REFIO | Reference I/O | Internal 4.096V reference output or external reference input (3.0–4.25V); requires 0.1µF bypass to AGND for stability. |
| RDC / RDC_SENSE | Reference Decoupling | RDC connects to ≥80µF bulk capacitance; RDC_SENSE provides feedback for reference buffer regulation-critical for PSR performance. |
| AVDD / AGND / AGNDS | Analog Power & Ground | Dedicated analog supply and split-ground (AGND + AGNDS) minimize noise coupling into sensitive analog front-end. |
| DVDD / DGND | Digital Power & Ground | Isolated digital supply domain prevents digital switching noise from modulating analog conversion accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Sampling | Four independent SAR ADCs with matched track-and-hold enable true time-aligned acquisition across all channels-essential for vector measurements in motor control. |
| High Input Impedance | ≥1GΩ input impedance reduces loading on precision sensor bridges and shunt-based current monitors without external buffers. |
| Overrange Protection | Integrated ±20mA input clamps allow robust operation with simple series resistor limiting-eliminates need for external TVS or diode clamps. |
| Low Aperture Jitter | 50ps RMS jitter ensures <0.01° phase error at 10kHz, preserving spectral integrity in FFT-based power quality analysis. |
| Flexible Reference Options | Switchable between internal 4.096V reference (±4ppm/°C drift) or external 3.0–4.25V source-supports both cost-sensitive and metrology-grade designs. |
Applications
| Multiphase Motor Control | Power-Grid Protection Relay |
|---|---|
|
Use Scenario: Real-time acquisition of three-phase voltage and neutral current in servo drives or inverters. IC Role / Device Role / Timing Role: Simultaneous 4-channel sampling captures synchronized VA, VB, VC, and IN waveforms for field-oriented control (FOC) algorithms. Use Value: 100ps channel-to-channel T/H matching ensures <0.02° phase error at 1kHz, enabling accurate torque estimation and harmonic injection suppression. |
Use Scenario: Voltage and current monitoring in digital protective relays for transmission line fault detection. IC Role / Device Role / Timing Role: Simultaneous sampling of phase voltages and currents feeds sequence component calculation (positive/negative/zero) in real time. Use Value: 84.5dB SNR and ±0.2LSB DNL support IEC 61850 Class 0.5 accuracy requirements for fault magnitude and direction discrimination. |
| Vibration Analysis System | Automatic Test Equipment (ATE) |
|
Use Scenario: Multi-sensor acquisition from accelerometers on rotating machinery for bearing defect detection. IC Role / Device Role / Timing Role: Four synchronized channels digitize orthogonal vibration signals (X/Y/Z + temperature-compensated reference) at 250ksps. Use Value: 4MHz T/H bandwidth preserves >95% amplitude fidelity up to 100kHz resonance peaks, enabling early-stage fault signature extraction. |
Use Scenario: High-speed parametric testing of analog ICs requiring correlated multi-node voltage/current measurements. IC Role / Device Role / Timing Role: Simultaneous capture of device-under-test supply current, output voltage, reference voltage, and thermal sensor output. Use Value: 3µs conversion time and parallel interface reduce test cycle time by >40% versus serial ADCs, improving ATE throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-4 | 16-bit, 4-channel, ±10V bipolar input, SPI-only interface, 200ksps max per channel | Requires external level-shifting for 0–5V unipolar sensors; lacks parallel interface for high-speed host readout | Select when bipolar input range or SPI integration is prioritized over speed and unipolar simplicity |
| ADS8684 | 16-bit, 4-channel, pseudo-simultaneous (sequential with <100ns skew), 1MSPS aggregate rate, SPI interface | No true simultaneous sampling; relies on fast sequencing to approximate sync-unsuitable for sub-degree phase-critical applications | Select for higher aggregate throughput where channel skew tolerance exceeds 50ns |
Compared with AD7606C-4 and ADS8684, the MAX11057ECB+T uniquely delivers true 4-channel simultaneity, 0–5V unipolar compatibility, and 20MHz parallel interface-making it optimal for time-aligned power quality and motor control where phase coherence is non-negotiable.
Availability
MAX11057ECB+T is available at Aetrix Electronics and suitable for multiphase motor control, power-grid protection relays, and vibration analysis systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX11057ECB+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 precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX11047–MAX11059 family targets high-fidelity, time-coherent data acquisition in power systems and automated test-emphasizing simultaneous sampling, low noise, and robust input protection.
FAQ
What is the resolution and channel count of the MAX11057ECB+T?
The MAX11057ECB+T is a 14-bit, 4-channel simultaneous-sampling ADC. Each channel has independent track-and-hold and SAR circuitry, enabling true concurrent acquisition without inter-channel timing skew. This distinguishes it from pseudo-simultaneous or multiplexed architectures where channel sequencing introduces deterministic phase offsets.
Does the MAX11057ECB+T require an external reference voltage?
No-the MAX11057ECB+T includes a low-drift 4.096V internal reference (±4ppm/°C) that supports its 0–5V input range directly. An external reference (3.0V–4.25V) may be used via the REFIO pin for applications demanding tighter absolute accuracy or custom full-scale scaling, but it is not required for standard operation.
What package type and pin count does the MAX11057ECB+T use?
The MAX11057ECB+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 MAX11057ECB+T handle overvoltage conditions on its analog inputs?
The MAX11057ECB+T integrates ±20mA input clamps on each analog input (CH0–CH3). When paired with a simple external series resistor, these clamps protect against overvoltage transients up to ±7.5V relative to AGND-eliminating the need for discrete TVS diodes or Schottky clamps in most industrial environments.
Can the MAX11057ECB+T interface directly with a 3.3V microcontroller?
Yes-the MAX11057ECB+T supports a digital supply range of 2.7V–5.25V, allowing direct connection to 3.3V logic without level shifters. Its DB0–DB15, RD, WR, CS, and CONVST pins are compatible with 3.3V CMOS thresholds (VIH = 2.0V min, VIL = 0.8V max), and output drive strength meets 3.3V system requirements.
MAX11057ECB+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:
- 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:
- -
MAX11057ECB+T FAQ
1.How can I place an order for MAX11057ECB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11057ECB+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 MAX11057ECB+T reliable?
The price and inventory of MAX11057ECB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11057ECB+T is usually 5 days.
3.What payment methods are accepted for MAX11057ECB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11057ECB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11057ECB+T?
MAX11057ECB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11057ECB+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 MAX11057ECB+T?
For technical support, including MAX11057ECB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11057ECB+T requirements.
6.How does Aetrix verify that MAX11057ECB+T is sourced from the original manufacturer or authorized distributors?
All MAX11057ECB+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 MAX11057ECB+T meets industry standards.
7.What is the process for return or replacement of MAX11057ECB+T?
All MAX11057ECB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11057ECB+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 MAX11057ECB+T part is unused and in its original packaging.
Return procedure for MAX11057ECB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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