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Analog Devices Inc./Maxim Integrated MAX11330ATJ+
- Part No.:
- MAX11330ATJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX11330ATJ+.pdf
- Description:
- IC ADC 10BIT SAR 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,442
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Product details
Overview
MAX11330ATJ+ from Maxim Integrated is a 10-bit, 8-channel SAR analog-to-digital converter with external reference support, 3Msps conversion rate, 500kHz full-linear bandwidth, and externally accessible multiplexer outputs (AOP/AON) and ADC inputs (AIP/AIN). It operates from 2.35V–3.6V, consumes 15.2mW at 3Msps, and targets multichannel signal acquisition in battery-powered industrial sensors.
For engineers reviewing the MAX11330ATJ+ datasheet, MAX11330ATJ+ pinout, MAX11330ATJ+ application, or MAX11330ATJ+ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-ready availability details - all specific to the MAX11330ATJ+ variant in 32-pin TQFN.
Technical Context
The MAX11330ATJ+ implements a successive approximation register (SAR) architecture with dual clock modes: internal clock mode featuring integrated FIFO and programmable averaging to improve SNR, and external clock mode supporting SampleSet technology - a user-defined 256-entry channel sequencer that offloads sequencing logic from the host controller. It supports single-ended, fully differential, and pseudo-differential input configurations per channel.
Its analog front-end provides direct access to the post-mux outputs (AOP/AON) and pre-ADC inputs (AIP/AIN), enabling external signal conditioning (e.g., filtering, gain, isolation) between multiplexing and digitization. The device guarantees ±0.4 LSB INL/DNL, 61.5dB SINAD at 100kHz, and 30MHz full-power bandwidth, with operation across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes; sufficient for medium-accuracy sensor monitoring and control loop feedback. |
| Conversion Rate | 3Msps - supports real-time sampling of fast transients up to ~1.5MHz Nyquist frequency without pipeline delay. |
| INL / DNL | ±0.4 LSB - ensures monotonicity and <0.1% end-point linearity error over full scale, critical for closed-loop stability. |
| SINAD @ 100kHz | 61.5dB typical - corresponds to ~10.2 effective bits; suitable for precision DC/low-frequency AC measurements in noisy environments. |
| Supply Voltage | 2.35V to 3.6V - enables direct interface with Li-ion (3.0–3.6V) and regulated 2.5V/3.3V rails without level-shifting. |
| Power Dissipation | 15.2mW at 3Msps (3V) - extends battery life in portable instrumentation; drops to 1.7µW in full shutdown. |
| Input Configuration | 8 single-ended, 4 fully differential, or 8 pseudo-differential channels - flexible per-pin setup simplifies mixed-signal front-end design. |
Pinout & Package
MAX11330ATJ+ is housed in a 32-pin, 5mm × 5mm, 0.5mm pitch TQFN package with exposed pad (EP) requiring connection to GND for thermal and electrical performance. Pin numbering follows standard top-view orientation with pin 1 marked by dot or chamfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN7 | Analog Input Channels | 8 configurable inputs; each supports single-ended, differential, or pseudo-differential modes via register settings. |
| AOP / AON | Multiplexer Output Terminals | Provide buffered, time-aligned analog signals post-mux but pre-ADC - enables external anti-alias filtering or gain stages. |
| AIP / AIN | ADC Input Terminals | Direct connection points to SAR core; must be driven with low-impedance source (<500Ω recommended) to maintain linearity. |
| REF+ / REF− | Differential Reference Inputs | Accept external 1V–VDD reference; REF− can also serve as common-mode input (AIN15) in pseudo-differential mode. |
| CS / SCLK / DIN / DOUT | 3-Wire SPI-Compatible Interface | 48MHz max SCLK; supports SPI/QSPI/MICROWIRE protocols with CPOL=CPHA=1; no external logic required. |
| CNVST | Active-Low Conversion Start | Edge-triggered start signal; initiates sampling on falling edge; compatible with microcontroller GPIO or timer outputs. |
| EOC | End-of-Conversion Indicator | Active-low pulse signals data readiness in internal clock mode; not used in external clock mode. |
| VDD / OVDD / DGND / GND | Power and Ground Rails | VDD (2.35–3.6V analog), OVDD (1.5–3.6V digital I/O), separate DGND/GND planes required for noise isolation. |
Key Features
| Feature | Design Value |
|---|---|
| SampleSet Channel Sequencer | User-programmable 256-step sequence stored in on-chip RAM - eliminates MCU polling overhead in multichannel scan applications. |
| Post-Mux Signal Access (AOP/AON) | Enables placement of external RC filters, PGAs, or isolation amplifiers between mux and ADC - improves noise immunity and channel crosstalk rejection. |
| Internal FIFO (16-entry) | Buffers conversions during high-speed acquisition; allows asynchronous readout at lower SCLK rates - decouples sampling and processing timing. |
| Configurable Input Ranges | Software-selectable unipolar (0–VREF+) or bipolar (±VREF+/2 or ±VREF+) - supports both sensor offset compensation and AC-coupled signal chains. |
| AutoShutdown Mode | Reduces IDD to 1.7µW while retaining register state - ideal for wake-on-event architectures in battery-operated remote sensors. |
Applications
| Industrial Sensor Hub | Portable Medical Monitor |
|---|---|
Use Scenario: Simultaneous acquisition of 8 temperature, pressure, and current-sense signals in a field-deployable condition-monitoring node. IC Role / Device Role / Timing Role: 8-channel SAR ADC with external mux output access enables shared anti-alias filter and PGA across all channels. Use Value: Reduces BOM count by 7 op-amps/filters vs. discrete channel conditioning; maintains 61.5dB SINAD under 125°C ambient. |
Use Scenario: Battery-powered ECG front-end acquiring lead I, II, III, aVR, aVL, aVF, V1–V6 with programmable gain and baseline drift correction. IC Role / Device Role / Timing Role: Configurable pseudo-differential inputs use REF− (AIN15) as common-mode reference for Wilson central terminal derivation. Use Value: 15.2mW power at 3Msps extends 24-hour runtime on 1200mAh LiPo; internal averaging suppresses 50/60Hz interference. |
| Automotive Battery Management Unit | High-Speed Closed-Loop Control |
Use Scenario: Monitoring cell voltages and thermistor readings across 8-series Li-ion cells in EV traction battery packs. IC Role / Device Role / Timing Role: Single-ended inputs with external precision voltage dividers; REF+ tied to stable bandgap reference. Use Value: ±0.4 LSB INL ensures <1mV absolute accuracy over –40°C to +85°C; 30MHz full-power bandwidth rejects switching noise from adjacent DC-DC converters. |
Use Scenario: Real-time position/speed feedback in servo motor drives using resolver or encoder analog outputs. IC Role / Device Role / Timing Role: Fully differential input pairs acquire sine/cosine resolver signals; SampleSet sequencer cycles through 4 channels at 500ksps per channel. Use Value: 333ns conversion time (external clock) enables sub-µs loop latency; 7.5pF input capacitance minimizes phase shift in high-frequency feedback paths. |
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 |
|---|---|---|---|
| ADS8684IPWR | 4-channel, 16-bit, 1MSPS, internal reference only; no post-mux access; SPI interface with busy indicator. | Better resolution for precision measurement, but lacks external signal conditioning flexibility and channel count. | Select when higher ENOB (>14-bit) is required and external mux access is unnecessary. |
| AD7928BRUZ | 8-channel, 12-bit, 1MSPS, no FIFO, no SampleSet, 2.7–5.25V supply; requires external reference. | Lower speed and no programmable sequencing; simpler interface but no internal averaging or low-power shutdown. | Select for cost-sensitive, lower-speed industrial DAQ where 1MSPS suffices and firmware handles sequencing. |
Compared with ADS8684IPWR and AD7928BRUZ, the MAX11330ATJ+ uniquely combines 8-channel count, 3Msps speed, post-mux signal access, and SampleSet sequencing - making it optimal for compact, high-throughput, low-power embedded systems requiring flexible analog front-end integration.
Availability
MAX11330ATJ+ is available at Aetrix Electronics and suitable for industrial sensor hubs, portable medical monitors, automotive battery management units, and high-speed closed-loop control systems requiring stable component supply, extended temperature operation, and long-term production continuity.
Supply support for MAX11330ATJ+ 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 demanding industrial, automotive, and medical applications.
The MAX11329–MAX11332 family was engineered to solve multichannel data acquisition challenges in space-constrained, battery-sensitive systems - emphasizing low power, external signal conditioning flexibility, and intelligent on-chip sequencing.
FAQ
What is the maximum sampling rate supported by the MAX11330ATJ+?
The MAX11330ATJ+ supports a guaranteed 3Msps conversion rate in both internal and external clock modes. In external clock mode with 48MHz SCLK, conversion completes in 333ns per sample. Internal clock mode achieves the same rate with built-in oscillator and optional averaging - making MAX11330ATJ+ suitable for real-time transient capture in industrial and medical systems.
Does the MAX11330ATJ+ support differential input configurations?
Yes, the MAX11330ATJ+ supports fully differential inputs across 4 channel pairs (e.g., AIN0/AIN1, AIN2/AIN3), as well as pseudo-differential and single-ended modes. Each channel's configuration is set independently via control registers. Differential mode provides common-mode noise rejection and improved dynamic range - critical for resolver interfaces and isolated sensor signals.
How does the SampleSet feature work in the MAX11330ATJ+?
The SampleSet feature in MAX11330ATJ+ is a 256-entry programmable sequencer that defines the order and repetition of analog input channel conversions. Once loaded into on-chip RAM, it runs autonomously - eliminating continuous MCU intervention. This reduces system-level communication overhead and lowers overall power consumption, especially in battery-powered data loggers and predictive maintenance nodes.
What are the absolute maximum ratings for the analog input pins of the MAX11330ATJ+?
The MAX11330ATJ+ analog input pins (AIN0–AIN7, AOP, AON, AIP, AIN, REF+, REF−) tolerate voltages from –0.1V to VREF+ + 0.1V relative to GND. Exceeding these limits risks latch-up or permanent damage. For robust operation, input sources should be clamped and limited to ≤500Ω source impedance to preserve linearity and THD performance as specified in the datasheet.
Can the MAX11330ATJ+ operate with a 1.8V digital I/O supply?
No - the MAX11330ATJ+ requires OVDD between 1.5V and 3.6V, but its digital interface (CS, SCLK, DIN, DOUT, EOC) is not rated for 1.8V-only operation without level translation. At OVDD = 1.8V, VIH minimum is 1.35V and VIL maximum is 0.45V per datasheet; compatibility depends on driving device thresholds. For guaranteed interoperability with 1.8V FPGAs or MCUs, verify logic levels meet these specs or use bidirectional level shifters.
MAX11330ATJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-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, DSP
- 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:
- 32-TQFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11330ATJ+ FAQ
1.How can I place an order for MAX11330ATJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11330ATJ+ 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 MAX11330ATJ+ reliable?
The price and inventory of MAX11330ATJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11330ATJ+ is usually 5 days.
3.What payment methods are accepted for MAX11330ATJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11330ATJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11330ATJ+?
MAX11330ATJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11330ATJ+ 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 MAX11330ATJ+?
For technical support, including MAX11330ATJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11330ATJ+ requirements.
6.How does Aetrix verify that MAX11330ATJ+ is sourced from the original manufacturer or authorized distributors?
All MAX11330ATJ+ 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 MAX11330ATJ+ meets industry standards.
7.What is the process for return or replacement of MAX11330ATJ+?
All MAX11330ATJ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11330ATJ+, 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 MAX11330ATJ+ part is unused and in its original packaging.
Return procedure for MAX11330ATJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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