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Analog Devices Inc./Maxim Integrated MAX11613EUA+T
- Part No.:
- MAX11613EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11613EUA+T.pdf
- Description:
- IC ADC 12BIT SAR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,902
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Product details
Overview
The MAX11613EUA+T 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 single-supply operation from 2.7V to 3.6V. It delivers 94.4ksps throughput, consumes only 670µA at max rate, and supports software-configurable unipolar/bipolar and single-ended/differential input modes - ideal for battery-powered sensor monitoring in portable medical devices.
For engineers reviewing the MAX11613EUA+T datasheet, MAX11613EUA+T pinout, MAX11613EUA+T application, or MAX11613EUA+T equivalent, this page provides verified technical context, validated pin functions, confirmed power-performance trade-offs across sampling rates, and real-world use cases requiring compact, low-quiescent ADCs with I²C simplicity and guaranteed -40°C to +85°C operation.
Technical Context
The MAX11613EUA+T 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, with input range selectable via software between 0–VREF (unipolar) or ±VREF/2 (bipolar) when in differential mode.
I²C interface operates in Fast Mode (400kHz) and High-Speed Mode (1.7MHz), with timing compliance verified for both CB ≤ 400pF and standard pull-up configurations. Conversion timing is deterministic: 10.6µs with external clock, or internally clocked with acquisition synchronized to I²C address acknowledge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = 0.5mV step size with 2.048V reference, enabling precise sensor digitization in sub-millivolt ranges. |
| Sampling Rate | 94.4ksps maximum - supports real-time capture of audio-band signals and fast transients without external oversampling. |
| Supply Current | 670µA at 94.4ksps; drops to 6µA at 1ksps - enables adaptive power scaling in duty-cycled IoT endpoints. |
| INL / DNL | ±1 LSB integral nonlinearity, ±1 LSB differential nonlinearity - ensures monotonicity and <0.025% full-scale error across temperature. |
| Reference Voltage | 2.048V internal (±0.039V over temp) - matches common microcontroller VREF domains and simplifies calibration against 2.048V-based systems. |
| Input Configuration | 4-channel single-ended or 2-channel fully differential - allows flexible signal routing without external multiplexers or instrumentation amps. |
| I²C Speed Modes | 400kHz Fast Mode and 1.7MHz High-Speed Mode - reduces conversion latency and bus occupancy in multi-sensor I²C networks. |
Pinout & Package
MAX11613EUA+T is housed in an 8-pin µMAX® package (3mm × 3mm, 0.5mm pitch), RoHS-compliant and lead-free. Pin functions are electrically validated per Maxim's datasheet Rev 4 (19-4561).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AIN0) | Analog Input 0 | Primary single-ended input channel; accepts 0–VREF (unipolar) or ±VREF/2 (differential) based on SGL/DIF and BIP/UNI bits. |
| 2 (AIN1) | Analog Input 1 | Second dedicated analog input; shares same configuration flexibility as AIN0 and supports channel-scan mode. |
| 3 (AIN2) | Analog Input 2 | Third analog input; usable in sequential scan or individual read sequences via CS[3:0] register control. |
| 4 (AIN3/REF) | Configurable Analog Input / Reference I/O | Software-selectable as fourth analog input or reference output (2.048V) - requires 0.1µF decoupling when used as REF. |
| 5 (SCL) | I²C Clock Input | Master-generated clock line; supports 400kHz/1.7MHz; internal synchronization triggers T/H acquisition and conversion timing. |
| 6 (SDA) | I²C Data I/O | Open-drain bidirectional data line; transmits 16-bit result (12-bit code + 4-bit channel ID) after ACK handshake. |
| 7 (GND) | Analog/Digital Ground | Common return for analog inputs, reference, and digital interface; must be star-connected to minimize noise coupling. |
| 8 (VDD) | Positive Supply | 2.7V–3.6V single supply; requires local 0.1µF ceramic bypass capacitor to GND for stable reference and conversion performance. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces current to <1µA between conversions - eliminates need for external enable sequencing in sleep-wake sensor nodes. |
| Internal FIFO with Channel-Scan Mode | Enables automatic round-robin sampling across all 4 channels with single I²C read - cuts firmware overhead by >70% vs. manual polling. |
| Software-Configurable Input Range | Runtime selection of unipolar (0–VREF) or bipolar (±VREF/2) via setup register - avoids hardware redesign when signal polarity changes. |
| Low Source-Impedance Tolerance | Accurate sampling with up to 1.5kΩ source impedance - eliminates buffer op-amps in many resistive sensor interfaces (e.g., RTDs, potentiometers). |
| Guaranteed Operation | -40°C to +85°C industrial temperature range - validated across full spec limits, not just typical conditions. |
Applications
| Portable Medical Sensors | Battery-Powered Test Equipment |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with electrochemical sensor output digitized at 10ksps for trend analysis and alarm triggering. IC Role / Device Role / Timing Role: 12-bit ADC capturing low-amplitude mV-level sensor currents; uses internal 2.048V reference for consistent calibration across units. Use Value: 6µA shutdown current extends coin-cell life to >2 years; I²C interface minimizes MCU GPIO usage and PCB routing complexity. |
Use Scenario: Handheld multimeter measuring DC voltage, current, and resistance with auto-ranging and backlit LCD. IC Role / Device Role / Timing Role: Primary ADC for analog front-end; configured for 4-channel scan to support simultaneous V/I/R measurement paths. Use Value: 40ksps sampling at 230µA enables responsive display updates without thermal drift; µMAX package fits tight handheld form factor. |
| Solar-Powered Remote Systems | System Supervision |
|
Use Scenario: Off-grid environmental station logging temperature, humidity, and solar irradiance using analog-output sensors. IC Role / Device Role / Timing Role: Low-power ADC acquiring sensor outputs during brief wake cycles; leverages AutoShutdown™ between samples. Use Value: 670µA at 94.4ksps allows burst sampling of all 4 sensors in <1ms, minimizing solar charge time per reading. |
Use Scenario: Industrial PLC module monitoring rail voltages, fan tachometer, and temperature for fault detection and predictive maintenance. IC Role / Device Role / Timing Role: Dedicated supervision ADC with dedicated VDD/GND pins - isolates noisy digital supply from precision analog path. Use Value: ±1 LSB INL ensures accurate threshold crossing detection; I²C slave address (0110100) avoids bus conflicts in multi-ADC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, I²C, low-power ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, SPI interface, 2.7V–5.25V supply, no internal reference - requires external 2.5V ref and level-shifting for 3.3V systems. | Lower resolution suits basic voltage monitoring but lacks channel scan or AutoShutdown™ for ultra-low-power duty cycling. | Select only if 8-bit accuracy suffices and SPI is preferred; not drop-in due to interface, resolution, and power architecture differences. |
| MAX11605EEE+ | 8-bit, 4-channel, I²C, 2.7V–3.6V, 600µA at 100ksps, no internal reference - relies on external 2.048V or system VDD. | Higher speed but lower resolution; lacks software-configurable bipolar mode and FIFO - limits dynamic signal analysis capability. | Choose for cost-sensitive, high-throughput 8-bit monitoring where bipolar input and low quiescent current are not required. |
Compared with MAX11613EUA+T, ADS7822U offers faster SPI but sacrifices 4 bits of resolution and autonomous power management, while MAX11605EEE+ trades resolution and feature set for lower unit cost - making MAX11613EUA+T optimal for precision, low-power, I²C-constrained designs needing guaranteed industrial temperature operation.
Availability
MAX11613EUA+T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered test equipment, and solar-powered remote systems requiring stable component supply, long-term lifecycle support, and guaranteed -40°C to +85°C performance.
Supply support for MAX11613EUA+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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX11612–MAX11617 product line targets space-constrained, battery-operated systems requiring high-resolution ADC functionality with minimal external components and robust I²C integration - specifically engineered for sensor nodes where size, power, and ease of implementation are critical.
FAQ
What is the absolute maximum supply voltage for MAX11613EUA+T?
The MAX11613EUA+T has an absolute maximum VDD rating of +6V relative to GND. However, functional operation is specified only from 2.7V to 3.6V. Exceeding 3.6V may cause parametric degradation or latch-up, and operation above +6V risks permanent damage. Always observe the 2.7V–3.6V recommended operating range for reliable performance of the MAX11613EUA+T.
Does MAX11613EUA+T support differential input mode?
Yes, the MAX11613EUA+T supports fully differential input mode via the SGL/DIF bit in the configuration byte. In differential mode, it accepts two input pairs (AIN0–AIN1 and AIN2–AIN3/REF) with ±VREF/2 range when BIP/UNI = 1. This enables rejection of common-mode noise in noisy environments - a confirmed capability of the MAX11613EUA+T per its functional diagram and Table 4 in the datasheet.
Can MAX11613EUA+T operate with an external reference voltage?
Yes, the MAX11613EUA+T accepts an external reference voltage from 1V to VDD applied to the AIN3/REF pin (configured via SEL[2:1] = 11). When using external reference, the internal 2.048V reference is disabled. Performance remains specified across temperature, and the MAX11613EUA+T maintains ±1 LSB INL with stable external references - confirmed in Electrical Characteristics Table 1.
What is the I²C slave address of MAX11613EUA+T?
The factory-programmed I²C slave address of MAX11613EUA+T is 0110100 (0x34 in 7-bit format). The R/W bit (LSB) determines direction: write = 0x68, read = 0x69. This address is fixed and shared with MAX11612EUA+, as confirmed in the Ordering Information table and Figure 1 timing diagrams of the MAX11612–MAX11617 datasheet.
How does AutoShutdown™ reduce power in MAX11613EUA+T?
AutoShutdown™ powers down the MAX11613EUA+T's internal reference, oscillator, and analog circuitry between conversions, reducing supply current to <1µA at low throughput. This occurs automatically after each conversion completes - no host intervention required. At 1ksps, average current drops to 6µA, and at idle, it reaches 0.5µA, directly extending battery life in intermittent-sampling applications using the MAX11613EUA+T.
MAX11613EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX11613EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11613EUA+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 MAX11613EUA+T reliable?
The price and inventory of MAX11613EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11613EUA+T is usually 5 days.
3.What payment methods are accepted for MAX11613EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11613EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11613EUA+T?
MAX11613EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11613EUA+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 MAX11613EUA+T?
For technical support, including MAX11613EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11613EUA+T requirements.
6.How does Aetrix verify that MAX11613EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX11613EUA+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 MAX11613EUA+T meets industry standards.
7.What is the process for return or replacement of MAX11613EUA+T?
All MAX11613EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11613EUA+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 MAX11613EUA+T part is unused and in its original packaging.
Return procedure for MAX11613EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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