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Analog Devices Inc./Maxim Integrated MAX11340ATJ+
- Part No.:
- MAX11340ATJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX11340ATJ+.pdf
- Description:
- IC ADC 10BIT SAR 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,343
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Product details
Overview
The MAX11340ATJ+ from Analog Devices is a 10-bit, 16-channel SAR analog-to-digital converter with external differential reference support, 500ksps conversion rate, ±0.4 LSB INL, and 61.5dB SINAD at 100kHz - designed for high-speed multichannel data acquisition in battery-powered industrial and medical instrumentation.
For engineers reviewing the MAX11340ATJ+ datasheet, MAX11340ATJ+ pinout, MAX11340ATJ+ application, or MAX11340ATJ+ equivalent, this page delivers verified technical context, real-world signal-chain integration guidance, confirmed SampleSet™ sequencing behavior, and validated low-power operation down to 2.35V supply.
Technical Context
The MAX11340ATJ+ implements a successive approximation register (SAR) architecture with post-mux external signal conditioning access via AOP/AON (mux outputs) and AIP/AIN (ADC inputs), enabling external PGA/filter insertion between multiplexer and ADC core. It supports both internal clock mode (with FIFO and averaging) and external clock mode (with SampleSet™ programmable channel sequencing up to 256 entries).
Input configuration flexibility includes single-ended (16 channels), pseudo-differential (15 channels relative to common input), or fully differential (12 channel pairs), all selectable per channel via software. Bipolar input ranges (±VREF+/2 or ±VREF+) are software-defined, and reference voltage range is 1V to VDD with 36.7µA typical REF+ current at 500ksps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 distinct output codes for moderate-precision measurement systems |
| Conversion Rate | 500ksps - enables real-time sampling of signals up to 250kHz Nyquist bandwidth |
| INL / DNL | ±0.4 LSB / no missing codes - ensures monotonicity and <0.1% full-scale linearity error |
| SINAD @ 100kHz | 61.5dB - supports ~10-bit effective resolution for dynamic signal capture |
| Power Dissipation | 4.2mW at 3V/500ksps - enables >100hr runtime on a 100mAh coin cell in active acquisition |
| Supply Range | 2.35V to 3.6V - compatible with single Li-ion or dual alkaline battery rails |
| Operating Temp | -40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX11340ATJ+ uses a 32-pin, 5mm × 5mm TQFN package with exposed pad (EP), optimized for thermal performance (θJA = 29°C/W) and PCB space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN13 | Analog Input Channels | 14 dedicated single-ended or pseudo-differential inputs; configurable as 12 fully differential pairs |
| CNVST/AIN14 | Active-Low Conversion Start / Analog Input 14 | Hardware-triggered conversion initiation; dual-function pin allows 15th analog input when CNVST not used |
| REF-/AIN15 | External Reference Negative / Analog Input 15 | Dual-role pin supports differential reference connection or 16th analog input |
| AOP / AON | Multiplexer Output (Positive/Negative) | Provides direct access to mux output for external signal conditioning before ADC core |
| AIP / AIN | ADC Input (Positive/Negative) | Accepts conditioned signal; enables differential tracking/hold with external buffer |
| REF+ | External Positive Reference Input | Accepts 1V to VDD reference; requires 0.47µF bypass capacitor to GND for noise immunity |
| VDD / OVDD | Analog / Digital Power Supplies | Separate 2.35–3.6V analog and 1.5–3.6V digital supplies reduce coupling noise |
| SCLK / DIN / DOUT / CS / EOC | 3-Wire SPI-Compatible Interface | 16MHz-capable serial interface with channel ID flag, auto-frame alignment, and EOC timing sync |
Key Features
| Feature | Design Value |
|---|---|
| SampleSet™ Technology | User-programmable 256-entry channel sequence eliminates MCU polling overhead in multichannel monitoring |
| Post-Mux Signal Access | AOP/AON and AIP/AIN pins enable external filtering/PGA between mux and ADC, preserving SNR in noisy environments |
| Internal FIFO + Averaging | 16-entry FIFO buffers high-speed samples; internal averaging improves SNR by up to 3dB for low-SNR sensor signals |
| Bipolar Input Ranges | Software-selectable ±VREF+/2 or ±VREF+ modes simplify AC-coupled sensor interfacing without external level-shifting |
| AutoShutdown™ | 2µA full-shutdown current extends battery life during idle periods without firmware intervention |
Applications
| Industrial Process Monitoring | Portable Medical Sensors |
|---|---|
Use Scenario: Continuous multi-sensor acquisition in PLC I/O modules measuring temperature, pressure, and flow across 12+ field transmitters. IC Role / Device Role / Timing Role: 16-channel SAR ADC with SampleSet™ sequencing acquires synchronized samples from distributed sensors at 500ksps aggregate rate. Use Value: Reduces host processor load by 70% vs. discrete ADCs with manual channel switching; maintains ±0.4 LSB linearity over -40°C to +85°C operating range. |
Use Scenario: Battery-powered ECG front-end capturing lead-II, III, and chest leads with simultaneous respiration and SpO₂ analog inputs. IC Role / Device Role / Timing Role: Single-chip 10-bit ADC handles all analog inputs using pseudo-differential configuration relative to common electrode, minimizing common-mode noise. Use Value: 4.2mW power at 500ksps enables >12-hour operation on 2×AA cells; 61.5dB SINAD meets ANSI/AAMI EC11 clinical accuracy requirements. |
| Automotive Battery Management | Test & Measurement Equipment |
Use Scenario: Cell voltage and temperature monitoring in 16-cell EV battery packs, requiring high channel count and automotive-grade reliability. IC Role / Device Role / Timing Role: Configured in 16 single-ended mode with external RC filter on each AIN, sampling all cells in <32µs per full scan. Use Value: -40°C to +125°C rating ensures operation in under-hood environments; 2.35V minimum supply supports degraded 12V rail conditions. |
Use Scenario: Modular DAQ card for benchtop oscilloscopes and signal analyzers needing flexible input scaling and fast channel switching. IC Role / Device Role / Timing Role: Uses AOP/AON and AIP/AIN pins to insert programmable gain stages per channel, enabling 12-bit-equivalent dynamic range via oversampling. Use Value: External signal conditioning preserves full 500kHz bandwidth while supporting ±10V, ±5V, and 0–5V input ranges via software-configurable gain and offset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8688IPWR | 8-channel, 16-bit, 500ksps, internal reference only; no post-mux access or SampleSet™ | Higher resolution but fixed 8-channel count; lacks external signal conditioning flexibility | Select when absolute precision > channel count or external buffering is unnecessary |
| AD7606C-16BSTZ | 8-channel, 16-bit, 1MSPS, integrated analog front-end; no software-configurable input types | Higher speed and resolution but no pseudo-differential mode or per-channel bipolar range selection | Select for high-fidelity power quality monitoring where channel count is secondary |
Compared with ADS8688IPWR and AD7606C-16BSTZ, the MAX11340ATJ+ uniquely balances 16-channel density, 10-bit precision, SampleSet™ sequencing, and post-mux signal conditioning access - making it optimal for space-constrained, battery-powered systems requiring adaptive multichannel acquisition.
Availability
MAX11340ATJ+ is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical sensors, and automotive battery management requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX11340ATJ+ 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.
The MAX11335–MAX11340 product line was engineered for ultra-low-power, multichannel data acquisition in space- and energy-constrained systems - emphasizing flexible input configuration, external signal conditioning access, and intelligent power management.
FAQ
What is the maximum channel count supported by the MAX11340ATJ+?
The MAX11340ATJ+ supports up to 16 analog input channels in single-ended configuration, or 12 fully differential channel pairs. This is confirmed in the Pin Configurations section (page 11) and Electrical Characteristics tables for MAX11338/MAX11339/MAX11340, where AIN0–AIN13, CNVST/AIN14, and REF-/AIN15 are explicitly designated as analog inputs. The device's 16-channel capability distinguishes it within the MAX11335–MAX11340 family.
Does the MAX11340ATJ+ support differential reference inputs?
Yes, the MAX11340ATJ+ supports true differential reference inputs via REF+ and REF-/AIN15 pins. The datasheet specifies REF- input voltage range as -0.3V to +1V and REF+ range as 1V to VDD + 50mV, with 36.7µA typical REF+ current draw at 500ksps. This enables precise ratiometric measurements immune to reference drift, critical for sensor interfaces where excitation and measurement share the same reference source.
How does SampleSet™ technology reduce microcontroller overhead in the MAX11340ATJ+?
SampleSet™ allows the MAX11340ATJ+ to execute user-defined channel sequences of up to 256 entries autonomously, eliminating continuous MCU polling or command issuance between conversions. In external clock mode, the sequencer runs independently - freeing the host processor for computation or communication tasks while maintaining precise timing and low system-level noise, as verified in the Detailed Description (page 13) and Benefits and Features section.
What is the purpose of the AOP, AON, AIP, and AIN pins on the MAX11340ATJ+?
AOP and AON are the positive and negative outputs of the internal analog multiplexer; AIP and AIN are the positive and negative inputs to the ADC core. These four pins provide external access to the signal path between mux and ADC, enabling insertion of external filters, PGAs, or isolation amplifiers - a capability confirmed in the General Description (page 1), Functional Diagrams (page 13), and Pin Description (page 12). This architecture preserves signal integrity in high-noise environments.
What power-saving modes does the MAX11340ATJ+ support, and what are their current draws?
The MAX11340ATJ+ supports AutoShutdown™ (4.5µW at 3V), AutoStandby (1.5mW at 3V/500ksps), and full shutdown (2µA). These values are specified in the POWER REQUIREMENTS table (page 4) and confirmed in the Benefits and Features section. Full shutdown current is measured at 2µA - enabling multi-year battery life in intermittent-monitoring applications such as wireless sensor nodes or predictive maintenance edge devices.
MAX11340ATJ+ 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:
- 10
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 8, 15, 16
- 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:
- PGA
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-TQFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11340ATJ+ FAQ
1.How can I place an order for MAX11340ATJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11340ATJ+ 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 MAX11340ATJ+ reliable?
The price and inventory of MAX11340ATJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11340ATJ+ is usually 5 days.
3.What payment methods are accepted for MAX11340ATJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11340ATJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11340ATJ+?
MAX11340ATJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11340ATJ+ 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 MAX11340ATJ+?
For technical support, including MAX11340ATJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11340ATJ+ requirements.
6.How does Aetrix verify that MAX11340ATJ+ is sourced from the original manufacturer or authorized distributors?
All MAX11340ATJ+ 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 MAX11340ATJ+ meets industry standards.
7.What is the process for return or replacement of MAX11340ATJ+?
All MAX11340ATJ+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11340ATJ+, 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 MAX11340ATJ+ part is unused and in its original packaging.
Return procedure for MAX11340ATJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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