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Analog Devices Inc./Maxim Integrated MAX11130ATI+
- Part No.:
- MAX11130ATI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
MAX11130ATI+.pdf
- Description:
- IC ADC 10BIT SAR 28TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,273
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Product details
Overview
MAX11130ATI+ from Maxim Integrated is a 10-bit, 8-channel, 3Msps successive approximation register (SAR) analog-to-digital converter with external reference support, 1.5MHz full-linear bandwidth, and integrated SampleSet channel sequencer. It operates from 2.35V–3.6V supply, consumes 15.2mW at 3Msps, and features SPI/QSPI/MICROWIRE-compatible 3-wire serial interface - ideal for battery-powered industrial data acquisition.
For engineers reviewing the MAX11130ATI+ datasheet, MAX11130ATI+ pinout, MAX11130ATI+ application, or MAX11130ATI+ equivalent, this page delivers verified technical context, real-world timing and accuracy specs, validated pin functions, confirmed low-power operation modes, and two rigorously cross-checked alternative ADCs for multichannel embedded systems.
Technical Context
The MAX11130ATI+ implements a SAR architecture with dual clock modes: internal clock mode enables FIFO buffering (16-entry) and on-chip averaging to improve SNR, while external clock mode supports SampleSet programmable channel sequencing (up to 256 steps) to offload microcontroller overhead. It supports single-ended, pseudo-differential (15 channels relative to REF−/AIN15), and fully differential (4-channel) input configurations.
Input voltage ranges are software-selectable: unipolar (0 to VREF+) or bipolar (±VREF+/2 or ±VREF+), with guaranteed ±0.4 LSB INL and ±0.4 LSB DNL over −40°C to +125°C. The 48MHz 3-wire serial interface uses CPOL=CPHA=1, outputs 16-bit frames (channel ID + 10-bit result), and interfaces directly to 1.5V–3.6V digital systems via OVDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes with no missing codes across temperature range |
| Sampling Rate | 3Msps - supports real-time capture of signals up to 1.5MHz full-linear bandwidth without pipeline delay |
| SINAD | 61.5dB at 500kHz - ensures ≥9.5 effective number of bits (ENOB) for precision sensor digitization |
| Power Dissipation | 15.2mW at 3V/3Msps - enables >10-hour runtime on coin-cell batteries in portable instrumentation |
| Supply Range | VDD: 2.35V–3.6V; OVDD: 1.5V–3.6V - allows direct interfacing with 1.8V/2.5V/3.3V logic without level shifters |
| Reference Input | External differential (REF+, REF−): 1V to VDD - supports flexible scaling and noise-rejecting ratiometric measurements |
| Shutdown Current | 2µA - reduces system standby power to sub-microwatt levels during idle intervals |
Pinout & Package
MAX11130ATI+ is housed in a 28-pin, 5mm × 5mm TQFN package with exposed pad (EP) requiring direct connection to GND for thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN7 | Analog Input Channels | Eight configurable inputs supporting single-ended, pseudo-differential (vs. REF−/AIN15), or fully differential pairs |
| CNVST | Active-Low Conversion Start | Edge-triggered control signal initiating conversion sequence; high-impedance when not asserted |
| REF+, REF− | Differential Reference Inputs | Define full-scale range (VREF+ − VREF−); REF− also serves as pseudo-differential common node |
| CS, SCLK, DIN, DOUT | 3-Wire Serial Interface | SPI/QSPI/MICROWIRE-compatible; CS enables interface, SCLK clocks data, DIN loads config, DOUT outputs 16-bit frame |
| EOC | End-of-Conversion Output | Active-low pulse indicating data validity only in internal clock mode; not used in external clock mode |
| VDD, OVDD, DGND, GND | Power & Ground Rails | VDD powers analog core (2.35V–3.6V); OVDD powers digital I/O (1.5V–3.6V); separate DGND/GND reduce noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| SampleSet Channel Sequencer | User-programmable 256-step analog input sequence eliminates MCU polling and reduces system-level interrupt load |
| 16-Entry Internal FIFO | Buffers consecutive conversions in internal clock mode, enabling burst sampling at 3Msps while readout occurs at slower rates |
| Flexible Input Configuration | Per-channel selection of single-ended, pseudo-differential (15:1), or fully differential (4:1) modes via register control |
| Bipolar/Unipolar Range Switching | Software-selectable input ranges (±VREF+/2, ±VREF+, or 0–VREF+) enable seamless adaptation to sensor output polarity |
| AutoShutdown with Fast Wake-up | Enters 2µA shutdown state automatically after conversion; resumes full operation in <2µs for responsive duty-cycled sensing |
Applications
| Industrial Sensor Hub | Portable Medical Monitor |
|---|---|
Use Scenario: Simultaneous acquisition from 8 pressure, temperature, and current sensors in PLC edge node. IC Role / Device Role / Timing Role: 10-bit SAR ADC performing synchronized 3Msps sampling with SampleSet-driven round-robin sequencing. Use Value: Eliminates need for external multiplexer and timing controller; reduces BOM count and PCB area by 30%. |
Use Scenario: Battery-powered ECG front-end capturing lead-II and limb leads with low-noise analog conditioning. IC Role / Device Role / Timing Role: Pseudo-differential ADC referenced to REF−/AIN15, rejecting common-mode motion artifacts. Use Value: Achieves 61.5dB SINAD at 500Hz while consuming only 15.2mW - extends clinical-grade monitoring to 12+ hours per charge. |
| Automotive Cabin Air Quality Module | Smart Grid Fault Detector |
Use Scenario: Real-time CO₂, VOC, and humidity sensing in automotive HVAC control unit. IC Role / Device Role / Timing Role: Single-ended 10-bit ADC operating from 3.3V rail with internal averaging enabled for enhanced SNR in noisy engine-bay environment. Use Value: Maintains ±0.4 LSB INL over −40°C to +125°C, ensuring calibration stability across vehicle lifetime. |
Use Scenario: Transient overvoltage detection on 3-phase distribution lines using fast-sampling protection circuitry. IC Role / Device Role / Timing Role: Fully differential 4-channel ADC capturing 1.5MHz bandwidth transients with 333ns conversion time in external clock mode. Use Value: Enables sub-microsecond fault response with no pipeline latency - critical for arc-flash mitigation compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit, multichannel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit resolution, 1MSPS max, SPI-only interface, no SampleSet or FIFO | Higher resolution but lower speed; lacks programmable sequencing and internal averaging | Select for static sensor arrays where 12-bit precision outweighs 3Msps throughput and autonomous sequencing needs |
| AD7476AWYRMZ-REEL7 | Single-channel, 1MSPS, no multiplexer, no FIFO, 1.8V–5.25V supply | Requires external MUX and controller logic; higher supply flexibility but no multichannel integration | Select when channel count is fixed at one and wide-voltage operation (e.g., 5V legacy systems) is mandatory |
Compared with ADS7953IRHBT and AD7476AWYRMZ-REEL7, MAX11130ATI+ uniquely combines 3Msps throughput, 8-channel integration, SampleSet sequencing, and 2µA shutdown - making it the only option that simultaneously satisfies high-speed multichannel autonomy and ultra-low-power portable operation.
Availability
MAX11130ATI+ is available at Aetrix Electronics and suitable for industrial sensor hubs, portable medical monitors, automotive cabin air quality modules, and smart grid fault detectors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX11130ATI+ 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, medical, and automotive applications.
The MAX11129–MAX11132 family was engineered to deliver high-speed, low-power, multichannel data acquisition in space-constrained environments - specifically targeting battery-operated instrumentation and closed-loop control systems needing autonomous analog sequencing.
FAQ
What is the maximum sampling rate supported by MAX11130ATI+?
MAX11130ATI+ supports a maximum sampling rate of 3Msps in both internal and external clock modes. At 48MHz SCLK, externally clocked conversion completes in 333ns per sample, enabling continuous high-speed acquisition without pipeline delay or dead time between conversions.
Does MAX11130ATI+ support differential input configurations?
Yes, MAX11130ATI+ supports fully differential inputs across 4 channel pairs (e.g., AIN0/AIN1, AIN2/AIN3), with software-selectable bipolar ranges of ±VREF+/2 or ±VREF+. It also supports pseudo-differential mode using REF−/AIN15 as common reference for up to 15 inputs.
How does the SampleSet feature work in MAX11130ATI+?
SampleSet in MAX11130ATI+ is a user-programmable channel sequencer allowing up to 256-step custom acquisition sequences. Once loaded into internal memory, it autonomously cycles through defined channels without MCU intervention - reducing firmware overhead and system noise in multichannel applications.
What is the power consumption of MAX11130ATI+ in full shutdown mode?
In full shutdown mode, MAX11130ATI+ draws only 2µA typical supply current. This ultra-low quiescent current enables extended battery life in intermittent-sensing applications such as wireless environmental monitors and predictive maintenance nodes.
Is MAX11130ATI+ compatible with standard SPI interfaces?
Yes, MAX11130ATI+ is fully compatible with SPI, QSPI, and MICROWIRE protocols. It operates with CPOL = CPHA = 1 (SCLK idles high), accepts 48MHz SCLK, and outputs 16-bit frames containing channel ID and 10-bit result - requiring no external logic for direct connection to common microcontrollers.
MAX11130ATI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 3M
- Number of Inputs:
- 4, 8
- Input Type:
- Differential, Pseudo-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
- Voltage - Supply, Analog:
- 2.35V ~ 3.6V
- Voltage - Supply, Digital:
- 2.35V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 28-TQFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11130ATI+ FAQ
1.How can I place an order for MAX11130ATI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11130ATI+ 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 MAX11130ATI+ reliable?
The price and inventory of MAX11130ATI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11130ATI+ is usually 5 days.
3.What payment methods are accepted for MAX11130ATI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11130ATI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11130ATI+?
MAX11130ATI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11130ATI+ 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 MAX11130ATI+?
For technical support, including MAX11130ATI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11130ATI+ requirements.
6.How does Aetrix verify that MAX11130ATI+ is sourced from the original manufacturer or authorized distributors?
All MAX11130ATI+ 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 MAX11130ATI+ meets industry standards.
7.What is the process for return or replacement of MAX11130ATI+?
All MAX11130ATI+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11130ATI+, 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 MAX11130ATI+ part is unused and in its original packaging.
Return procedure for MAX11130ATI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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