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Analog Devices Inc./Maxim Integrated MAX11340ATJ+T
- Part No.:
- MAX11340ATJ+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MAX11340ATJ+T.pdf
- Description:
- IC ADC 10BIT SAR 32TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
The MAX11340ATJ+T 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 sensors and portable medical instrumentation.
For engineers reviewing the MAX11340ATJ+T datasheet, MAX11340ATJ+T pinout, MAX11340ATJ+T application, or MAX11340ATJ+T equivalent, this page delivers verified technical context, real-world signal conditioning access points, SampleSet™-enabled channel sequencing, and power-performance tradeoffs critical for embedded system integration.
Technical Context
The MAX11340ATJ+T implements a successive approximation register (SAR) architecture with post-mux analog signal access (AOP/AON to AIP/AIN), enabling external filtering or gain stages between multiplexer output and ADC input. It supports both internal clock mode (with 16-entry FIFO and programmable averaging) and external clock mode (with SampleSet™ user-defined 256-step channel sequencing).
Input configuration flexibility includes single-ended (16 channels), fully differential (12 pairs), or pseudo-differential (15 channels relative to common input), all selectable per channel via SPI register writes. Bipolar input ranges (±VREF+/2 or ±VREF+) are software-configurable, and reference inputs accept 1V to VDD with 36.7µA typical draw at 500ksps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for moderate-precision sensor digitization without pipeline latency. |
| Conversion Rate | 500ksps - enables real-time sampling of signals up to 250kHz Nyquist bandwidth in continuous scan mode. |
| INL / DNL | ±0.4 LSB / no missing codes - ensures monotonicity and <0.1% full-scale linearity error across temperature. |
| SINAD | 61.5dB at 100kHz - supports accurate measurement of low-distortion sine waves in closed-loop control feedback paths. |
| Power Dissipation | 4.2mW at 3V/500ksps - extends runtime in coin-cell or Li-ion powered field instruments by minimizing active current draw. |
| Supply Range | VDD = 2.35V–3.6V, VOVDD = 1.5V–3.6V - allows direct interface with 1.8V/3.3V microcontrollers and mixed-voltage PCB designs. |
| Full Shutdown Current | 2.1µW at 2.35V - reduces standby leakage to sub-microwatt levels during idle periods in duty-cycled systems. |
Pinout & Package
MAX11340ATJ+T is housed in a 32-pin, 5mm × 5mm TQFN package with exposed pad (EP), rated for -40°C to +125°C operation. Pin functions are validated per Analog Devices' official MAX11335–MAX11340 datasheet (Rev 2, June 2021), Figure 11 and Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN13 | Analog Input Channels | 14 dedicated single-ended inputs; configurable as fully differential or pseudo-differential pairs with shared common reference. |
| CNVST/AIN14 | Active-Low Conversion Start / Analog Input 14 | Dual-function pin: triggers conversion when asserted low; serves as 15th analog input when CNVST inactive. |
| REF-/AIN15 | External Reference Negative / Analog Input 15 | Dual-function pin: completes differential reference path or acts as 16th analog input; requires ≤1V max voltage. |
| AOP / AON | Multiplexer Output (Positive/Negative) | Provides buffered, time-aligned analog outputs from internal mux - enables external signal conditioning before ADC sampling. |
| AIP / AIN | ADC Input (Positive/Negative) | Direct connection point to SAR core; accepts conditioned signals from AOP/AON or direct sensor feeds. |
| CS, SCLK, DIN, DOUT | 3-Wire SPI-Compatible Interface | Supports 8MHz clock, CPOL=CPHA=1, 16-bit frames with optional channel ID - interoperable with STM32, MSP430, and ADSP-BF5xx controllers. |
| EOC | End-of-Conversion Indicator | Asserted low after conversion completion in internal clock mode only; used for interrupt-driven readout synchronization. |
| VDD / OVDD / DGND / GND / EP | Power and Ground Terminals | Separate analog (VDD/GND) and digital (OVDD/DGND) supplies reduce noise coupling; EP must be soldered to ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| SampleSet™ Technology | User-programmable 256-step channel sequence eliminates MCU polling overhead and enables asynchronous multi-rate sampling. |
| Post-Mux Signal Access (AOP/AON → AIP/AIN) | Allows insertion of external PGA, anti-alias filter, or isolation amplifier between mux and ADC - critical for high-impedance sensor interfaces. |
| Internal 16-Entry FIFO | Buffers conversions during high-speed acquisition, permitting burst reads at slower SPI rates - decouples sampling and communication timing. |
| Configurable Bipolar Ranges | Software-selectable ±VREF+/2 or ±VREF+ modes simplify interfacing with AC-coupled transducers and bridge-based strain gauges. |
| AutoShutdown™ with 2µs Wake-up | Reduces average power in intermittent-sampling applications while maintaining sub-microsecond readiness for event-triggered capture. |
Applications
| Industrial Process Monitoring | Portable ECG Front-End |
|---|---|
|
Use Scenario: Continuous monitoring of 12 thermocouple and 4 pressure sensor outputs in a compact PLC module. IC Role / Device Role / Timing Role: 16-channel simultaneous-sampling-capable ADC with external reference stability and 500ksps aggregate throughput. Use Value: Eliminates need for external mux and sample-hold circuitry; SampleSet™ sequences high- and low-bandwidth sensors autonomously. |
Use Scenario: Battery-powered handheld ECG device acquiring 8 lead signals with >60dB common-mode rejection. IC Role / Device Role / Timing Role: Fully differential 8-channel ADC with programmable gain support via external op-amps on AOP/AON pins. Use Value: Post-mux access enables discrete instrumentation amplifiers per channel, preserving SNR while meeting IEC 60601-2-27 immunity requirements. |
| Automated Test Equipment (ATE) | Motor Phase Current Sensing |
|
Use Scenario: Modular DAQ card capturing transient waveforms from 16 DUTs with variable sampling intervals. IC Role / Device Role / Timing Role: High-speed SAR ADC with internal FIFO and 2000ns conversion time in external clock mode. Use Value: Internal averaging improves SNR for low-level signals; 16-bit SPI frame with channel ID simplifies firmware correlation of results. |
Use Scenario: Real-time three-phase motor controller measuring shunt-based current feedback with <1µs latency. IC Role / Device Role / Timing Role: Pseudo-differential ADC configured for ratiometric measurement against VREF+, rejecting supply ripple. Use Value: ±0.4 LSB INL ensures <0.04% full-scale accuracy in torque calculation; 4.2mW dissipation avoids thermal derating in enclosed drives. |
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, SPI interface; no post-mux access or SampleSet™ | Better resolution but lacks flexible external signal conditioning path and autonomous sequencing | Select for higher precision where external PGA/filtering is unnecessary and internal reference suffices |
| AD7606C-16BSTZ | 8-channel, 16-bit, 1Msps, parallel/SPI, integrated analog front-end; no dual-function pins or 16-channel count | Higher speed and resolution, but fixed 8-channel count and no AOP/AON accessibility for custom signal chains | Select when system demands >1Msps throughput and integrated PGA/anti-aliasing, not expandable channel count |
Compared with ADS8688IPWR and AD7606C-16BSTZ, the MAX11340ATJ+T uniquely combines 16-channel count, post-mux analog access, and SampleSet™ programmability - making it optimal for space-constrained, multirate, externally conditioned sensor systems where flexibility outweighs raw resolution.
Availability
MAX11340ATJ+T is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical instrumentation, automated test equipment, and motor control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX11340ATJ+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX11335–MAX11340 family was engineered for low-power, multichannel data acquisition in space- and energy-constrained environments - emphasizing configurability, external signal chain integration, and seamless microcontroller interfacing.
FAQ
What is the maximum channel count supported by the MAX11340ATJ+T?
The MAX11340ATJ+T supports up to 16 analog input channels - including AIN0 through AIN13, plus dual-function pins CNVST/AIN14 and REF-/AIN15 - enabling full utilization of its 16-channel architecture in single-ended mode or 12 fully differential pairs.
Does the MAX11340ATJ+T require an external crystal or oscillator?
No, the MAX11340ATJ+T does not require an external crystal or oscillator. It operates using either its internal clock (enabling FIFO and averaging) or an external SCLK signal up to 8MHz - eliminating BOM cost and board area for timing components.
How does the SampleSet™ feature improve system-level efficiency with the MAX11340ATJ+T?
The SampleSet™ feature in the MAX11340ATJ+T allows users to predefine up to 256-step channel sequences with per-channel configuration (input type, range, gain). This offloads sequencing logic from the host MCU, reducing firmware complexity and bus traffic while enabling deterministic multi-rate sampling.
Can the MAX11340ATJ+T interface directly with a 1.8V microcontroller?
Yes, the MAX11340ATJ+T supports VOVDD = 1.5V to 3.6V, allowing direct SPI-level compatibility with 1.8V microcontrollers. Its digital I/O thresholds scale with VOVDD (VIH = 0.75×VOVDD), ensuring reliable communication without level shifters.
What is the purpose of the AOP, AON, AIP, and AIN pins on the MAX11340ATJ+T?
AOP and AON expose the buffered output of the internal multiplexer; AIP and AIN connect directly to the ADC's sampling network. This separation allows external signal conditioning (e.g., filtering, gain, isolation) between the mux and ADC - a key differentiator for high-fidelity sensor interfacing in the MAX11340ATJ+T.
MAX11340ATJ+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX11340ATJ+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11340ATJ+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 MAX11340ATJ+T reliable?
The price and inventory of MAX11340ATJ+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11340ATJ+T is usually 5 days.
3.What payment methods are accepted for MAX11340ATJ+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11340ATJ+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11340ATJ+T?
MAX11340ATJ+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11340ATJ+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 MAX11340ATJ+T?
For technical support, including MAX11340ATJ+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11340ATJ+T requirements.
6.How does Aetrix verify that MAX11340ATJ+T is sourced from the original manufacturer or authorized distributors?
All MAX11340ATJ+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 MAX11340ATJ+T meets industry standards.
7.What is the process for return or replacement of MAX11340ATJ+T?
All MAX11340ATJ+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11340ATJ+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 MAX11340ATJ+T part is unused and in its original packaging.
Return procedure for MAX11340ATJ+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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