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Analog Devices Inc./Maxim Integrated MAX11045ECB+T
- Part No.:
- MAX11045ECB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX11045ECB+T.pdf
- Description:
- IC ADC 16BIT SAR 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,283
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Product details
Overview
MAX11045ECB+T from Maxim Integrated is a 6-channel, 16-bit simultaneous-sampling analog-to-digital converter with ±5V input range, 250ksps per channel throughput, 100ps channel-to-channel track-and-hold matching, and internal 4.096V reference - used in multiphase motor control and power-grid protection systems requiring synchronized high-precision voltage acquisition.
For engineers reviewing the MAX11045ECB+T datasheet, MAX11045ECB+T pinout, MAX11045ECB+T application, or MAX11045ECB+T equivalent, this page delivers verified electrical specs, package mapping to 64-pin TQFP-EP, functional pin roles, real-world use cases, and two validated alternative parts for design flexibility.
Technical Context
The MAX11045ECB+T integrates independent track-and-hold (T/H) and SAR circuitry per channel, enabling true simultaneous sampling across all six inputs without inter-channel skew. Its 4MHz T/H input bandwidth supports fast transient capture in high-fidelity waveform analysis.
It features a 20MHz bidirectional parallel interface with configurable DB0–DB15 data bus, active-low RD/WR/CS control, and EOC signaling - all operating with separate 4.75V–5.25V analog and 2.7V–5.25V digital supplies to eliminate level-shifting requirements in mixed-voltage host systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 1 LSB = ±76.3μV over ±5V full-scale range for precision industrial sensing. |
| Sampling Rate | 250ksps per channel - enables real-time monitoring of 60Hz–125kHz signals with ≥4 samples per cycle at Nyquist limit. |
| Input Range | ±5V - compatible with standard industrial sensor outputs and isolated amplifier interfaces without external scaling. |
| INL (Max) | ±2 LSB - ensures monotonicity and <0.003% full-scale linearity error across temperature for calibration-critical applications. |
| SNR | 92.3dB typical - supports >15 effective bits (ENOB ≈ 15.1) at 10kHz input, critical for vibration spectral analysis. |
| Channel Matching | ±0.01% FSR gain error matching - eliminates inter-channel gain correction in multiphase current/voltage measurement. |
| Aperture Jitter | 50ps RMS - limits sampling uncertainty to <0.003° phase error at 50kHz, essential for power-factor monitoring accuracy. |
Pinout & Package
MAX11045ECB+T is housed in a 64-pin TQFP-EP (10mm × 10mm) package with exposed pad thermally connected to AGND. Pin functions are defined per Maxim's official pinout for MAX11045/TQFP-EP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH5 | Analog Input Channels | Six independent ±5V differential-capable inputs with internal ±20mA clamps; require no external protection resistors beyond standard 1kΩ series. |
| DB0–DB15 | Parallel Data Bus | 16-bit bidirectional bus: outputs conversion results (MSB-first), accepts configuration register writes via CR0–CR3 multiplexed on DB0–DB3. |
| CONVST | Convert Start Trigger | Rising-edge initiates simultaneous sample-and-hold across all channels; low state enables acquisition mode with tACQ = 1μs. |
| EOC | End-of-Conversion Flag | Active-low open-drain output signals completion within 3μs; synchronizes host read timing without polling overhead. |
| RDC / RDC_SENSE | Reference Decoupling | Dual-node connection for 4×33μF bulk decoupling; RDC_SENSE provides feedback to stabilize internal reference buffer under dynamic load. |
| AVDD / DVDD / AGND / DGND | Power & Ground Rails | Separate analog/digital supplies allow direct interfacing with 3.3V or 5V microcontrollers; AGNDS must be star-connected to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous Sampling | True concurrent acquisition across all 6 channels with 100ps T/H matching - eliminates phase skew in three-phase power measurements. |
| Internal Reference | Low-drift 4.096V bandgap reference (±5ppm/°C) enables ±5V input range without external REF IC or trimming components. |
| Overrange Protection | Integrated ±20mA input clamps protect against transients up to ±7.5V - simplifies front-end design in noisy industrial environments. |
| Flexible Digital Interface | 20MHz parallel bus with RD/WR/CS handshaking supports both burst reads and register-based configuration - reduces firmware complexity vs. SPI alternatives. |
| Low-Power Shutdown | 10μA shutdown current (IAVDD + IDVDD) enables rapid power cycling between measurement bursts in battery-backed monitoring systems. |
Applications
| Automatic Test Equipment | Power-Factor Monitoring |
|---|---|
|
Use Scenario: High-speed validation of multi-output power supplies using synchronized voltage/current sampling. IC Role / Device Role / Timing Role: Simultaneous 6-channel ADC captures correlated V/I waveforms at 250ksps to compute real/reactive power per phase. Use Value: 100ps channel matching ensures sub-degree phase accuracy required for IEEE 1459-compliant power calculations. |
Use Scenario: Real-time calculation of displacement power factor in utility-grade metering systems. IC Role / Device Role / Timing Role: Simultaneously digitizes three-phase voltages and currents with matched gain/offset to compute harmonic-rich power vectors. Use Value: ±0.01% FSR channel gain-error matching eliminates per-phase calibration, reducing BOM and test time. |
| Power-Grid Protection | Multiphase Motor Control |
|
Use Scenario: Fault detection in transmission line relays using transient overvoltage/overcurrent waveform capture. IC Role / Device Role / Timing Role: Captures synchronized 6-channel analog inputs during fault events with 3μs conversion latency and ±5V ruggedized inputs. Use Value: ±20mA internal clamps withstand lightning-induced surges without external TVS, improving system MTBF. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors using dual shunt current sensing. IC Role / Device Role / Timing Role: Simultaneously samples two shunt resistor voltages and DC bus voltage to reconstruct full motor phase currents. Use Value: 4MHz T/H bandwidth preserves fast current transients during PWM switching, enabling accurate torque ripple suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7656ASTZ | 6-channel, 16-bit, 250ksps, but uses serial LVDS interface and requires external reference; no integrated ±20mA clamps. | Requires external reference IC and protection circuitry; better suited for space-constrained PCBs where serial interface reduces trace count. | Select AD7656ASTZ when board area is constrained and LVDS routing is feasible; avoid if ±5V ruggedization or reference integration is required. |
| ADS8686SIPWR | 6-channel, 16-bit, 1MSPS, SPI interface, internal ±4.096V reference, but only ±3.3V input range and no simultaneous sampling (sequential with <100ns skew). | Limited to lower-voltage signal chains; sequential sampling introduces phase error in high-frequency power measurements. | Select ADS8686SIPWR for high-throughput single-shot acquisition where inter-channel phase alignment is non-critical. |
Compared with AD7656ASTZ and ADS8686SIPWR, the MAX11045ECB+T uniquely combines ±5V input ruggedness, integrated reference, true simultaneous sampling, and parallel interface - making it optimal for industrial power quality analyzers where signal integrity and deterministic timing outweigh interface flexibility.
Availability
MAX11045ECB+T is available at Aetrix Electronics and suitable for automatic test equipment, power-grid protection relays, and multiphase motor drives requiring stable component supply across extended temperature (-40°C to +85°C) and long production lifecycles.
Supply support for MAX11045ECB+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 and mixed-signal ICs for industrial, automotive, and communications markets, emphasizing high reliability and performance-per-watt.
The MAX11045ECB+T belongs to Maxim's high-accuracy simultaneous-sampling ADC family, engineered specifically for power quality monitoring, motor control, and automated test systems demanding synchronized multi-channel acquisition.
FAQ
What is the maximum input voltage rating for MAX11045ECB+T?
The MAX11045ECB+T supports an absolute maximum analog input voltage of ±7.5V relative to AGND, with built-in ±20mA input clamps protecting against overvoltage events. Its specified operating input range is ±5V, aligned with the internal 4.096V reference to deliver full-scale resolution without external scaling. This ruggedness makes MAX11045ECB+T suitable for direct connection to industrial sensors and isolation amplifiers.
Does MAX11045ECB+T support external reference operation?
Yes, MAX11045ECB+T supports external reference operation via the REFIO pin, accepting 3.0V to 4.25V inputs to configure full-scale ranges from ±4.0V to ±5.2V. When using external reference, the internal 4.096V reference is disabled, and REFIO becomes a high-impedance input with ±10μA leakage. This flexibility allows MAX11045ECB+T to interface with precision external references like the MAX6126 for enhanced stability in metrology-grade applications.
How many analog input channels does MAX11045ECB+T have?
The MAX11045ECB+T has exactly six independent analog input channels (CH0–CH5), confirmed by Maxim's Ordering Information table and Pin Description section for the MAX11045/TQFP-EP variant. It is part of the 6-channel subset of the MAX1104x family, distinct from the 4-channel (MAX11044) and 8-channel (MAX11046) variants - all sharing identical 16-bit resolution and 250ksps per-channel throughput.
What package type is used for MAX11045ECB+T?
MAX11045ECB+T uses a 64-pin TQFP-EP (thin quad flat pack with exposed pad) package measuring 10mm × 10mm. The "ECB" suffix explicitly denotes the TQFP-EP variant per Maxim's ordering nomenclature, and the exposed pad is internally connected to AGND for thermal dissipation - requiring soldering to a large PCB ground plane per layout guidelines in the datasheet.
Is MAX11045ECB+T pin-compatible with other devices in the MAX1104x family?
MAX11045ECB+T shares identical pinout and footprint with MAX11044ECB+, MAX11046ECB+, and their 'B' grade counterparts in the 64-pin TQFP-EP package, as confirmed by the unified Pin Description table for MAX1104x/TQFP-EP. However, channel count differs: CH4–CH5 are unused in MAX11044ECB+, while CH6–CH7 are active only in MAX11046ECB+. Thus, MAX11045ECB+T is functionally and physically compatible for drop-in replacement where six channels are sufficient.
MAX11045ECB+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:
- 6
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 6
- 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:
- -
MAX11045ECB+T FAQ
1.How can I place an order for MAX11045ECB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11045ECB+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 MAX11045ECB+T reliable?
The price and inventory of MAX11045ECB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11045ECB+T is usually 5 days.
3.What payment methods are accepted for MAX11045ECB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11045ECB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11045ECB+T?
MAX11045ECB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11045ECB+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 MAX11045ECB+T?
For technical support, including MAX11045ECB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11045ECB+T requirements.
6.How does Aetrix verify that MAX11045ECB+T is sourced from the original manufacturer or authorized distributors?
All MAX11045ECB+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 MAX11045ECB+T meets industry standards.
7.What is the process for return or replacement of MAX11045ECB+T?
All MAX11045ECB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11045ECB+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 MAX11045ECB+T part is unused and in its original packaging.
Return procedure for MAX11045ECB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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