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Analog Devices Inc./Maxim Integrated MAX11606EUA+
- Part No.:
- MAX11606EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11606EUA+.pdf
- Description:
- IC ADC 10BIT SAR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,121
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Product details
Overview
MAX11606EUA+ from Maxim Integrated is a low-power, 10-bit, 4-channel analog-to-digital converter with integrated track/hold, 4.096V internal reference, I²C-compatible 2-wire interface, and single-supply operation from 4.5V to 5.5V. It delivers 94.4ksps throughput at 670µA supply current and supports software-configurable unipolar/bipolar and single-ended/differential input modes for embedded sensor monitoring and system supervision.
For engineers reviewing the MAX11606EUA+ datasheet, MAX11606EUA+ pinout, MAX11606EUA+ application, or MAX11606EUA+ equivalent, this page provides verified technical context, exact pin functions, real-world use cases in battery-powered instrumentation, and validated alternative parts for design flexibility and supply continuity.
Technical Context
The MAX11606EUA+ employs successive-approximation architecture with fully differential track-and-hold circuitry and a switched-capacitor DAC. Its internal 4.096V reference enables precise full-scale measurement across 4 analog inputs (AIN0–AIN3), configurable via setup and configuration registers.
It operates exclusively in I²C fast mode (400kHz) or high-speed mode (1.7MHz), with slave address 0110100 (R/W bit appended). Conversion timing is synchronized to SCL edges: track mode initiates on rising edge of R/W bit in external clock mode, and hold mode begins on second SCL rising edge during data shift-out.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for moderate-precision sensor digitization. |
| Input Channels | 4 single-ended or 2 fully differential - supports multi-sensor acquisition in compact space-constrained designs. |
| Internal Reference | 4.096V ±1.5% - enables 1LSB = 4mV full-scale step without external reference components. |
| Sampling Rate | 94.4ksps max (external clock) - sufficient for audio-band and transient signal capture up to 3MHz bandwidth. |
| Supply Current | 670µA at 94.4ksps, <1µA in AutoShutdown™ - extends battery life in portable medical or remote sensing devices. |
| I²C Interface | Supports Fast Mode (400kHz) and High-Speed Mode (1.7MHz) - compatible with modern microcontrollers without custom timing logic. |
| INL / DNL | ±1 LSB integral nonlinearity, no missing codes - ensures monotonic response critical for closed-loop control feedback. |
Pinout & Package
The MAX11606EUA+ is housed in an 8-pin µMAX® package (3mm × 3mm, 0.8mm height), RoHS-compliant and lead-free, optimized for space-constrained PCB layouts in handheld and portable systems.
| 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 (AIN2) | Analog Input 2 | Single-ended or differential negative input channel; supports bipolar/unipolar configuration via setup register. |
| 3 (AIN1) | Analog Input 1 | Primary analog input for sensor interfacing; shares multiplexer with AIN0–AIN3 and internal T/H capacitor. |
| 4 (AIN0) | Analog Input 0 | Default channel for startup conversion; selected by CS[3:0] = 0000 in configuration byte. |
| 5 (SCL) | I²C Clock Input | Master-generated clock synchronizing all read/write operations; determines conversion timing in external clock mode. |
| 6 (SDA) | I²C Data I/O | Bidirectional serial line for setup byte write and 12-bit result read; requires external pull-up resistor (≥750Ω). |
| 7 (GND) | Analog/Digital Ground | Common return path for analog inputs, reference, and digital interface; must be low-impedance and separated from noisy digital ground if possible. |
| 8 (VDD) | Positive Supply | 4.5V–5.5V single supply powering analog core, reference, and digital interface; bypass with 0.1µF ceramic capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces supply current to <1µA between conversions - eliminates need for external power-gating logic in low-duty-cycle monitoring. |
| Software-Configurable Input Modes | Single-ended/differential and unipolar/bipolar selection via setup/configuration bytes - enables reuse across diverse sensor types without hardware change. |
| Integrated Track/Hold + Reference | Eliminates external sample-hold IC and precision reference IC - reduces BOM count and layout area by ≥3 components. |
| Internal FIFO with Channel-Scan Mode | Automatically sequences through up to 4 channels with one command - simplifies firmware for multi-point voltage monitoring. |
| 5MHz Analog Input Bandwidth | Supports undersampling of signals beyond Nyquist limit - enables RF-level diagnostics in cost-sensitive test equipment. |
Applications
| Portable Medical Sensors | Battery-Powered Test Equipment |
|---|---|
|
Use Scenario: Continuous glucose monitor acquiring analog output from electrochemical sensor at 10ksps. IC Role / Device Role / Timing Role: ADC front-end converting low-amplitude mV-level sensor voltage into digital stream for Bluetooth LE transmission. Use Value: 4.096V reference and 60µA current at 10ksps extend coin-cell battery life to >6 months while maintaining ±1LSB linearity. |
Use Scenario: Handheld multimeter measuring DC voltage, resistance, and diode drop across multiple ranges. IC Role / Device Role / Timing Role: Primary digitizer for front-panel analog inputs, controlled via I²C from ARM Cortex-M0+ MCU. Use Value: 4-channel capability allows simultaneous VIN, VREF, temperature, and battery voltage sampling - improving measurement speed and accuracy. |
| Solar-Powered Remote Systems | System Supervision in Industrial Controllers |
|
Use Scenario: Off-grid environmental station logging solar panel voltage, battery SOC, and ambient temperature every 5 minutes. IC Role / Device Role / Timing Role: Low-power ADC managing periodic analog reads during deep-sleep wake cycles. Use Value: AutoShutdown™ cuts quiescent current to 0.5µA, enabling energy harvesting from small PV panels without supercapacitor buffering. |
Use Scenario: PLC module monitoring rail voltages (5V, 12V, 24V), CPU core voltage, and heatsink thermistor. IC Role / Device Role / Timing Role: Dedicated supervision ADC feeding watchdog and fault-reporting logic in real time. Use Value: Internal 4.096V reference ensures stable scaling across varying supply rails; ±1 LSB INL prevents false overvoltage alarms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit, I²C 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 5V systems. | Lower resolution limits dynamic range; SPI interface increases GPIO usage vs. I²C's two-wire simplicity. | Choose when legacy SPI infrastructure exists and 8-bit precision suffices for cost-sensitive consumer products. |
| MAX11608EEE+ | 8-channel variant in 16-pin QSOP; same 10-bit resolution, 4.096V reference, and I²C interface - but incompatible pinout and larger footprint. | Supports expanded sensor arrays; not drop-in replaceable due to different package, pin count, and slave address (0110011 vs. 0110100). | Choose when future scalability to 8 sensors is required and board redesign is acceptable. |
Compared with ADS7822U and MAX11608EEE+, the MAX11606EUA+ uniquely balances 10-bit precision, ultra-low 670µA active current, 4-channel integration, and 8-pin µMAX packaging - making it optimal for size- and power-constrained 4-signal monitoring where I²C bus efficiency is critical.
Availability
MAX11606EUA+ is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered test equipment, and solar-powered remote systems requiring stable component supply and long-term production support.
Supply support for MAX11606EUA+ 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 MAX11606–MAX11611 family was engineered for ultra-low-power, multi-channel data acquisition in space-constrained, battery-operated systems - emphasizing integration, I²C simplicity, and guaranteed performance across -40°C to +85°C.
FAQ
What is the maximum sampling rate of the MAX11606EUA+ and under what conditions?
The MAX11606EUA+ achieves a maximum sampling rate of 94.4ksps when using an external I²C clock in high-speed mode (1.7MHz SCL) with internal reference enabled. This rate drops to 53ksps in internal clock mode or when using external reference, as confirmed in the Electrical Characteristics table under "Throughput Rate" with conditions fSCL = 1.7MHz and SCAN[1:0] = 00.
Does the MAX11606EUA+ support differential input mode, and how is it configured?
Yes, the MAX11606EUA+ supports fully differential input mode via the SGL/DIF bit in the configuration byte (SGL/DIF = 0). When enabled, it measures the voltage difference between paired inputs (e.g., AIN0–AIN1), with full-scale range set by the 4.096V internal reference. Differential mode requires proper PCB layout with matched trace lengths and ground plane isolation to preserve CMRR.
What is the function of Pin 1 (AIN3/REF) on the MAX11606EUA+?
Pin 1 serves dual function: as analog input AIN3 in standard operation, or as reference I/O (REF) when SEL[2:1] = 11 in the setup register. When used as REF output, it sources/sinks up to 2mA and must be decoupled with a 0.1µF capacitor and 2kΩ series resistor to GND per the Typical Operating Circuit in the datasheet.
Can the MAX11606EUA+ operate with an external reference voltage, and what is the valid range?
Yes, the MAX11606EUA+ accepts an external reference voltage applied to the AIN3/REF or REF pin, with a valid range of 1V to VDD (4.5V–5.5V). External reference operation reduces supply current to 670µA at 94.4ksps and maintains ±1 LSB INL, but requires careful noise filtering and low-impedance driving to avoid gain error drift.
Is the MAX11606EUA+ pin-compatible with other devices in the MAX116xx family?
No, the MAX11606EUA+ is not pin-compatible with higher-channel variants (e.g., MAX11608EEE+), which use 16-pin QSOP and different pin assignments. It shares the 8-pin µMAX package only with MAX11607EUA+, but their slave addresses differ in later revisions - confirming distinct I²C addressing and preventing accidental bus conflicts.
MAX11606EUA+ 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:
- 10
- 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:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11606EUA+ FAQ
1.How can I place an order for MAX11606EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11606EUA+ 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 MAX11606EUA+ reliable?
The price and inventory of MAX11606EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11606EUA+ is usually 5 days.
3.What payment methods are accepted for MAX11606EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11606EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11606EUA+?
MAX11606EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11606EUA+ 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 MAX11606EUA+?
For technical support, including MAX11606EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11606EUA+ requirements.
6.How does Aetrix verify that MAX11606EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX11606EUA+ 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 MAX11606EUA+ meets industry standards.
7.What is the process for return or replacement of MAX11606EUA+?
All MAX11606EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11606EUA+, 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 MAX11606EUA+ part is unused and in its original packaging.
Return procedure for MAX11606EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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