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Analog Devices Inc./Maxim Integrated MAX11613EUA+
- Part No.:
- MAX11613EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11613EUA+.pdf
- Description:
- IC ADC 12BIT SAR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,998
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Product details
Overview
The MAX11613EUA+ from Maxim Integrated is a low-power, 12-bit, 4-channel I²C-compatible analog-to-digital converter with integrated track/hold, 2.048V internal reference, and 8-pin µMAX® package. It operates from a single 2.7V–3.6V supply, draws only 670µA at 94.4ksps, and supports software-configurable unipolar/bipolar and single-ended/differential input modes. It is used in battery-powered medical instruments and handheld portable systems requiring precision, compact size, and ultra-low power.
For engineers reviewing the MAX11613EUA+ datasheet, MAX11613EUA+ pinout, MAX11613EUA+ application, or MAX11613EUA+ equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options - all grounded in Maxim's official specifications for the 8-pin µMAX variant of the MAX11613 family.
Technical Context
The MAX11613EUA+ employs successive-approximation architecture with fully differential track/hold circuitry and an internal 2.8MHz oscillator. Its analog front-end supports 4 single-ended or 2 fully differential inputs, configurable via setup and configuration registers over I²C.
It implements AutoShutdown™ to reduce current to <1µA between conversions and features an internal FIFO with channel-scan mode. The I²C interface operates in Fast Mode (400kHz) and High-Speed Mode (1.7MHz), with timing compliance verified per JEDEC standards for both modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output codes for high-fidelity signal digitization. |
| Sampling Rate | 94.4ksps max - enables real-time capture of signals up to ~3MHz bandwidth (SINAD >68dB). |
| Supply Voltage | 2.7V to 3.6V - compatible with Li-ion and 3.3V system rails without level-shifting. |
| Internal Reference | 2.048V ±40mV - provides stable full-scale range; supports external reference from 1V to VDD. |
| INL / DNL | ±1 LSB - ensures monotonicity and <0.025% integral nonlinearity across temperature. |
| Power Consumption | 670µA at 94.4ksps; 6µA at 1ksps - enables multi-day operation in energy-constrained IoT sensors. |
| I²C Speed | Up to 1.7MHz - reduces host MCU overhead and supports burst reads without CPU polling. |
Pinout & Package
MAX11613EUA+ uses an 8-pin µMAX® package (3mm × 3mm, 0.5mm pitch), optimized for space-constrained PCB layouts. Pin functions are validated per Maxim's official pin description table for the µMAX variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AIN3/REF) | Analog Input 3 / Reference I/O | Configurable as fourth analog input or reference voltage source/sink; requires 0.1µF decoupling when used as REF output. |
| 2 (GND) | Analog/Digital Ground | Common return path for analog and digital sections; must be connected to low-impedance system ground plane. |
| 3 (SDA) | I²C Serial Data I/O | Open-drain bidirectional line; requires external pull-up (≥750Ω) to VDD for proper bus operation. |
| 4 (SCL) | I²C Serial Clock Input | Master-generated clock; rising edge samples data, falling edge drives data; supports 400kHz/1.7MHz modes. |
| 5 (AIN0) | Analog Input 0 | First of four single-ended inputs; supports differential pairing with AIN1 when SGL/DIF = 0. |
| 6 (AIN1) | Analog Input 1 | Second input; forms differential pair with AIN0 in differential mode; shares same T/H capacitor. |
| 7 (AIN2) | Analog Input 2 | Third input; selectable in channel-scan mode; internally multiplexed to T/H stage. |
| 8 (VDD) | Positive Supply | 2.7V–3.6V input; must be bypassed with 0.1µF ceramic capacitor directly to Pin 2 (GND). |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces quiescent current to <1µA during idle intervals - extends battery life in intermittent-sampling applications. |
| Software-Configurable Input Modes | Single-ended/differential and unipolar/bipolar selection via I²C register writes - eliminates external op-amp reconfiguration. |
| Internal Track/Hold + Reference | Removes need for external sample-hold IC and precision reference - cuts BOM count and layout area by ≥3 components. |
| Channel-Scan FIFO | Automatically sequences through up to 4 inputs and buffers results - simplifies firmware for multi-sensor monitoring. |
| Low Source Impedance Tolerance | Accurate sampling with ≤1.5kΩ source impedance - avoids mandatory buffer amplifiers in most sensor interfaces. |
Applications
| Portable ECG Monitor | Battery-Powered Environmental Sensor Node |
|---|---|
|
Use Scenario: Continuous acquisition of low-amplitude biopotential signals (0.5–5mV) from dry electrodes in a wearable patch. IC Role / Device Role / Timing Role: Primary ADC capturing 4 electrode channels with differential input and 2.048V reference for optimal SNR at sub-mV resolution. Use Value: 70dB SINAD and ±1 LSB INL ensure clinical-grade waveform fidelity; 670µA active current enables >72-hour runtime on a 120mAh coin cell. |
Use Scenario: Simultaneous measurement of temperature, humidity, and ambient light in a solar-charged remote telemetry unit. IC Role / Device Role / Timing Role: Multi-channel front-end digitizing resistive (RTD), capacitive (humidity), and photodiode outputs using programmable gain and scan mode. Use Value: Internal FIFO and channel-scan reduce MCU wake-ups by 75%; AutoShutdown™ cuts average current to <10µA in sleep cycles. |
| Handheld Multimeter | Industrial PLC Analog Input Module |
|
Use Scenario: Precision DC voltage/current measurement with autoranging and auto-zero calibration in a palm-sized test instrument. IC Role / Device Role / Timing Role: Core 12-bit ADC providing calibrated unipolar and bipolar input ranges (±1.024V) via internal reference and software configuration. Use Value: 0.3ppm/°C gain drift and ±4 LSB offset error enable factory calibration valid over –40°C to +85°C without recalibration. |
Use Scenario: Distributed analog input acquisition in a DIN-rail-mounted controller monitoring 4 process transmitters (4–20mA loops). IC Role / Device Role / Timing Role: Isolated front-end ADC converting conditioned loop signals with galvanically separated I²C interface to microcontroller. Use Value: 4.5V–5.5V supply compatibility (via MAX11612) is not applicable; MAX11613EUA+'s 2.7–3.6V range suits low-voltage isolated supplies and reduces heat in dense modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, I²C, multi-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 16-channel, SPI interface; 2.7–5.25V supply; no internal reference; 1.25MSPS max rate. | Requires external reference and SPI host; higher channel count but larger 32-pin QFN package. | Select when higher throughput or more channels are needed and SPI is preferred over I²C. |
| MAX11605EEE+ | 8-bit, 4-channel, I²C, 2.7–3.6V; 400kHz I²C only; no internal reference; 100ksps max. | Limited resolution and missing internal reference require external components; lower power (300µA @ 100ksps). | Select only for cost-sensitive, non-critical measurements where 8-bit resolution suffices and board space allows extra reference IC. |
Compared with ADS7953IRHBT and MAX11605EEE+, the MAX11613EUA+ uniquely combines I²C simplicity, integrated 2.048V reference, ultra-small µMAX package, and 12-bit accuracy - making it optimal for space- and power-constrained designs where precision and ease of integration outweigh raw speed or channel count.
Availability
MAX11613EUA+ is available at Aetrix Electronics and suitable for handheld portable applications, battery-powered test equipment, and solar-powered remote systems requiring stable component supply and long-term manufacturability.
Supply support for MAX11613EUA+ 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 portable applications.
The MAX11612–MAX11617 product line targets ultra-low-power, space-constrained systems needing integrated signal conditioning - delivering 12-bit accuracy with minimal external components and I²C simplicity.
FAQ
What is the maximum sampling rate of the MAX11613EUA+?
The MAX11613EUA+ achieves a maximum sampling rate of 94.4ksps when using the internal clock. This rate is confirmed in the Electrical Characteristics table under "Throughput Rate" and corresponds to a conversion time of 10.6µs with external clocking. At this rate, supply current is 670µA (typical) with the internal reference enabled.
Does the MAX11613EUA+ include an internal voltage reference?
Yes, the MAX11613EUA+ integrates a 2.048V internal reference with ±40mV initial accuracy and 25ppm/°C temperature coefficient. It can be configured as an output on the AIN3/REF pin or used internally; external references from 1V to VDD are also supported for flexibility.
Can the MAX11613EUA+ operate in differential input mode?
Yes, the MAX11613EUA+ supports fully differential input operation across two channels (AIN0–AIN1 and AIN2–AIN3/REF) via the SGL/DIF bit in the configuration byte. In this mode, it delivers true differential acquisition with common-mode rejection and ±VREF/2 input range when bipolar mode is selected.
What package type is used by the MAX11613EUA+?
The MAX11613EUA+ uses the 8-pin µMAX® package (3mm × 3mm, 0.5mm pitch), a lead(Pb)-free/RoHS-compliant surface-mount package. This is explicitly listed in the Ordering Information table and distinguishes it from the WLP variant (MAX11613EWC+).
How does AutoShutdown™ function in the MAX11613EUA+?
AutoShutdown™ automatically powers down the MAX11613EUA+ between conversions, reducing supply current to less than 1µA at low throughput rates. This feature is hardware-controlled and requires no firmware intervention - it activates after each conversion completes and remains active until the next I²C read command initiates acquisition.
MAX11613EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 94.4k
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11613EUA+ FAQ
1.How can I place an order for MAX11613EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11613EUA+ 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 MAX11613EUA+ reliable?
The price and inventory of MAX11613EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11613EUA+ is usually 5 days.
3.What payment methods are accepted for MAX11613EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11613EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11613EUA+?
MAX11613EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11613EUA+ 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 MAX11613EUA+?
For technical support, including MAX11613EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11613EUA+ requirements.
6.How does Aetrix verify that MAX11613EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX11613EUA+ 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 MAX11613EUA+ meets industry standards.
7.What is the process for return or replacement of MAX11613EUA+?
All MAX11613EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11613EUA+, 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 MAX11613EUA+ part is unused and in its original packaging.
Return procedure for MAX11613EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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