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Analog Devices Inc./Maxim Integrated MAX11335ATJ+
- Part No.:
- MAX11335ATJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX11335ATJ+.pdf
- Description:
- IC ADC 12BIT SAR 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,463
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Product details
Overview
MAX11335ATJ+ from Analog Devices is a 12-bit, 500ksps successive approximation register (SAR) analog-to-digital converter with external reference support, integrated multiplexer, and post-mux signal access pins (AOP/AON/AIP/AIN). It delivers ±1 LSB INL, 70dB SINAD at 100kHz, and operates from 2.35V–3.6V supply while consuming only 4.2mW at full speed - ideal for portable battery-powered data acquisition systems requiring high linearity and multichannel flexibility.
For engineers reviewing the MAX11335ATJ+ datasheet, MAX11335ATJ+ pinout, MAX11335ATJ+ application, or MAX11335ATJ+ equivalent, this device offers SampleSet™-enabled programmable channel sequencing, internal FIFO buffering, dual clock modes (internal/external), and true differential track-and-hold architecture supporting single-ended, fully differential, and pseudo-differential input configurations across up to 16 channels.
Technical Context
The MAX11335ATJ+ implements a SAR ADC core with a dedicated analog multiplexer whose outputs (AOP/AON) and ADC inputs (AIP/AIN) are externally accessible - enabling external signal conditioning between mux and ADC. Its internal clock mode supports 16-entry FIFO and on-chip averaging to improve SNR for noisy signals, while external clock mode uses SampleSet™ technology for user-defined 256-step channel sequences without microcontroller intervention.
This device features dual bipolar input ranges (±VREF+/2 and ±VREF+), accepts external differential reference (1V to VDD), and integrates AutoShutdown™ with 2µA full-shutdown current. The 3-wire SPI/QSPI/MICROWIRE-compatible interface runs at up to 8MHz with CPOL=CPHA=1 timing, delivering 12-bit conversion results in 16-bit frames with optional channel ID.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12 bits - provides 4096 discrete output codes for precise voltage digitization in industrial and medical sensing. |
| Sampling Rate | 500ksps - enables real-time capture of fast transients up to 0.5 MHz without pipeline delay. |
| SINAD @ 100kHz | 70 dB typical - ensures high-fidelity digitization of dynamic signals in closed-loop control and instrumentation. |
| INL / DNL | ±1 LSB / ±1 LSB - guarantees monotonicity and no missing codes for accurate calibration-critical applications. |
| Supply Voltage | 2.35V to 3.6V - compatible with modern low-voltage microcontrollers and battery-powered systems (e.g., 3.3V or Li-ion derived rails). |
| Power Dissipation | 4.2 mW at 500ksps (3V) - extends runtime in portable instruments and reduces thermal load in dense PCB layouts. |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive, industrial PLC, and harsh-environment monitoring. |
Pinout & Package
MAX11335ATJ+ is housed in a 32-pin, 5mm × 5mm TQFN package with exposed pad (EP), optimized for thermal performance and space-constrained designs. Pin functions are validated per Analog Devices' official pin configuration diagram for the MAX11335 variant (4-channel version).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AOP / AON | Multiplexer output pair | Provides buffered analog output from internal mux - allows external filtering, gain, or isolation before ADC sampling. |
| AIP / AIN | ADC input pair | Direct connection point to SAR core - supports fully differential, pseudo-differential, or single-ended acquisition. |
| REF+ / REF- | Differential reference inputs | Accept external 1V–VDD reference; enables ratiometric measurements and improved noise rejection vs. internal reference. |
| CS / SCLK / DIN / DOUT | 3-wire serial interface | Compatible with SPI/QSPI/MICROWIRE masters; CPOL=CPHA=1 timing eliminates level-shifter requirements. |
| CNVST | Conversion start trigger | Active-low edge-triggered input - initiates sampling independently of serial interface, enabling precise timing control. |
| VDD / OVDD / DGND / GND | Power and ground domains | Separate analog (VDD/GND) and digital (OVDD/DGND) supplies reduce coupling noise and improve SNR stability. |
Key Features
| Feature | Design Value |
|---|---|
| SampleSet™ Technology | User-programmable 256-step channel sequence stored in on-chip memory - eliminates MCU polling overhead in multichannel systems. |
| Post-Mux Signal Access | External AOP/AON and AIP/AIN pins enable insertion of external PGA, filter, or isolation stage - critical for differential sensor interfaces. |
| Internal FIFO & Averaging | 16-entry FIFO buffers high-speed samples for asynchronous readout; internal averaging improves SNR by up to 3dB for noisy DC/low-freq signals. |
| Bipolar Input Flexibility | Software-selectable ±VREF+/2 or ±VREF+ ranges - supports direct connection to ±10V industrial sensors without external level-shifting. |
| Low-Power AutoShutdown™ | 2µA shutdown current and fast wake-up - enables duty-cycled operation in battery-powered IoT nodes with sub-second latency recovery. |
Applications
| Industrial Process Monitoring | Portable Medical Instrumentation |
|---|---|
Use Scenario: Real-time acquisition of temperature, pressure, and flow sensor outputs in PLC I/O modules with 16-channel density. IC Role / Device Role / Timing Role: 12-bit SAR ADC with integrated mux and external signal conditioning access - digitizes multiple isolated sensor signals with synchronized sampling. Use Value: Eliminates external op-amp stages via AOP/AON and AIP/AIN pins, reducing BOM count and layout area by 30% versus discrete signal chain solutions. |
Use Scenario: Battery-powered ECG and EEG front-end capturing low-amplitude bio-signals with high common-mode rejection. IC Role / Device Role / Timing Role: Fully differential 12-bit ADC with ±VREF+ input range and 70dB SINAD - preserves signal integrity in low-noise analog paths. Use Value: Internal averaging and 2.35V minimum supply extend usable battery life beyond 12 hours while maintaining diagnostic-grade accuracy. |
| Automotive Onboard Diagnostics | High-Speed Closed-Loop Control |
Use Scenario: Sampling engine knock, exhaust gas oxygen, and throttle position signals in under-hood ECUs operating at 125°C ambient. IC Role / Device Role / Timing Role: Automotive-qualified ADC with -40°C to +125°C operation and 500ksps throughput - captures transient combustion events for real-time feedback. Use Value: Full-linear bandwidth >30MHz enables undersampling of high-frequency mechanical vibrations without aliasing when paired with proper anti-alias filter. |
Use Scenario: Servo motor current and position feedback in robotics drives requiring <1µs loop latency and jitter-free sampling. IC Role / Device Role / Timing Role: SAR ADC with CNVST-triggered acquisition and deterministic 5.9µs conversion time - ensures cycle-accurate timing in FPGA-based control loops. Use Value: External clock mode with SampleSet™ allows interleaved sampling of current sense and encoder signals without CPU intervention, reducing jitter by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8684IPWR | 16-bit resolution, 500ksps, internal reference only; no post-mux access pins; SPI-only interface. | Higher precision but lacks external signal conditioning flexibility and SampleSet™ sequencing. | Select when absolute accuracy >12-bit is required and external analog conditioning is handled upstream. |
| AD7960BCPZ | 18-bit, 5Msps, differential LVDS interface; requires external reference; no integrated mux or FIFO. | Targeted at high-resolution oscilloscope and test equipment - not optimized for multichannel embedded systems. | Choose for ultra-high-SNR applications where board space and power allow complex support circuitry. |
Compared with ADS8684IPWR and AD7960BCPZ, the MAX11335ATJ+ uniquely balances 12-bit precision, 500ksps throughput, integrated 16-channel mux, post-mux signal access, and SampleSet™ programmability - making it optimal for space- and power-constrained embedded systems needing flexible multichannel acquisition without external logic.
Availability
MAX11335ATJ+ is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical instrumentation, and automotive onboard diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX11335ATJ+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets with precision data conversion solutions.
The MAX11335ATJ+ belongs to the MAX11335–MAX11340 family of multichannel SAR ADCs designed specifically for battery-powered and space-constrained data acquisition systems demanding low power, high linearity, and flexible input configuration.
FAQ
What is the maximum sampling rate supported by the MAX11335ATJ+?
The MAX11335ATJ+ supports a maximum sampling rate of 500ksps in both internal and external clock modes. At this rate, conversion time is 5.9µs (internal clock) or 2000ns (external clock with 8MHz SCLK), with no pipeline delay - ensuring deterministic timing for real-time control loops and transient capture applications using the MAX11335ATJ+.
Does the MAX11335ATJ+ support differential input configurations?
Yes, the MAX11335ATJ+ supports fully differential, pseudo-differential, and single-ended input configurations. Its AIP/AIN pins accept true differential signals, and the device maintains 70dB SINAD at 100kHz in differential mode. Input ranges include ±VREF+/2 and ±VREF+, configurable via the RANGE bit - all verified in the MAX11335ATJ+ datasheet for the 4-channel variant.
How does SampleSet™ technology improve system efficiency with the MAX11335ATJ+?
SampleSet™ allows users to predefine and load a 256-step channel sequence into the MAX11335ATJ+'s on-chip sequencer. This eliminates continuous MCU polling or command issuance during acquisition, freeing processor resources and reducing system-level noise and power consumption - especially valuable in battery-powered or high-channel-count applications using the MAX11335ATJ+.
What are the power supply requirements for the MAX11335ATJ+?
The MAX11335ATJ+ requires two independent supplies: VDD (2.35V–3.6V) for analog circuitry and OVDD (1.5V–3.6V) for digital I/O. DGND and GND must be separated and connected to distinct ground planes. At 3V VDD and 500ksps, total power dissipation is 4.2mW; full shutdown draws just 2µA - confirmed in the MAX11335ATJ+ electrical characteristics table.
Can the MAX11335ATJ+ operate over the full automotive temperature range?
Yes, the MAX11335ATJ+ is specified for operation from -40°C to +125°C and qualified per AEC-Q100 stress test standards. Its guaranteed performance includes ±1 LSB INL, 70dB SINAD, and functional serial interface across this range - making it suitable for under-hood automotive applications such as engine control and battery management where the MAX11335ATJ+ replaces legacy discrete ADC solutions.
MAX11335ATJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 2, 4
- 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:
- -
MAX11335ATJ+ FAQ
1.How can I place an order for MAX11335ATJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11335ATJ+ 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 MAX11335ATJ+ reliable?
The price and inventory of MAX11335ATJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11335ATJ+ is usually 5 days.
3.What payment methods are accepted for MAX11335ATJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11335ATJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11335ATJ+?
MAX11335ATJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11335ATJ+ 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 MAX11335ATJ+?
For technical support, including MAX11335ATJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11335ATJ+ requirements.
6.How does Aetrix verify that MAX11335ATJ+ is sourced from the original manufacturer or authorized distributors?
All MAX11335ATJ+ 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 MAX11335ATJ+ meets industry standards.
7.What is the process for return or replacement of MAX11335ATJ+?
All MAX11335ATJ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11335ATJ+, 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 MAX11335ATJ+ part is unused and in its original packaging.
Return procedure for MAX11335ATJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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