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Analog Devices Inc./Maxim Integrated MAX11606EUA+T
- Part No.:
- MAX11606EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11606EUA+T.pdf
- Description:
- IC ADC 10BIT SAR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,885
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Product details
Overview
MAX11606EUA+T 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 operation from 4.5V to 5.5V supply. It delivers 94.4ksps throughput at 670µA, supports unipolar/bipolar and single-ended/differential input configurations, and targets battery-powered sensor monitoring in portable medical and industrial instrumentation.
For engineers reviewing the MAX11606EUA+T datasheet, MAX11606EUA+T pinout, MAX11606EUA+T application, or MAX11606EUA+T equivalent, this page provides verified electrical parameters, µMAX package layout, I²C timing compliance (up to 1.7MHz), channel-scan FIFO operation, and design-meaning context for supply current vs. sampling rate, reference flexibility, and acquisition time constraints.
Technical Context
The MAX11606EUA+T employs successive-approximation architecture with fully differential track-and-hold circuitry and a switched-capacitor DAC. Its analog front-end supports software-configurable single-ended (4 channels) or fully differential (2 channels) operation, with input ranges set by either the internal 4.096V reference or an external 1V–VDD reference.
It uses an internal oscillator or external clock for conversion control and features AutoShutdown™ to reduce current to <1µA between conversions. The I²C interface operates in Fast Mode (400kHz) or High-Speed Mode (1.7MHz), with slave address 0110100 and bidirectional SDA/SCL signaling requiring pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete digital codes across full-scale range, sufficient for medium-precision sensor digitization without oversampling. |
| Sampling Rate | 94.4ksps (external clock) - enables real-time capture of signals up to ~3MHz bandwidth (SINAD >57dB) in undersampling applications. |
| Supply Current | 670µA at 94.4ksps - allows continuous high-throughput operation from a single 5V rail while maintaining thermal stability in compact layouts. |
| Reference Voltage | 4.096V internal - provides 1mV/LSB scaling for unipolar inputs, simplifying calibration and eliminating external reference component cost. |
| INL / DNL | ±1 LSB (max) - ensures monotonicity and <0.1% full-scale linearity error, critical for closed-loop control feedback accuracy. |
| I²C Clock Support | 1.7MHz High-Speed Mode - reduces command-to-result latency to ≤12µs per conversion, improving system responsiveness in fast polling architectures. |
| Operating Temp | -40°C to +85°C - validated for deployment in industrial edge nodes and portable equipment exposed to ambient temperature extremes. |
Pinout & Package
The MAX11606EUA+T is housed in an 8-pin µMAX® package (3mm × 3mm, 0.8mm height), RoHS-compliant and lead(Pb)-free. Pin spacing is 0.65mm; recommended PCB footprint follows Maxim's µMAX land pattern for thermal and signal integrity.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | AIN3/REF | Configurable terminal: analog input channel 3 or reference voltage source/sink; requires 0.1µF decoupling when used as REF output. |
| 2 | GND | Analog and digital ground reference; must be connected to low-impedance system ground plane to minimize noise coupling into T/H node. |
| 3 | SDA | Open-drain bidirectional data line; requires external pull-up (≥750Ω) to VDD; supports 1.7MHz clock with ≤400pF bus capacitance. |
| 4 | SCL | Input-only clock line; master-generated; rising edge initiates bit sampling; falling edge triggers internal state transitions during read cycles. |
| 5 | AIN0 | Single-ended analog input 0; full-scale range 0 to VREF (4.096V) in unipolar mode; protected to ±0.3V beyond GND/VDD rails. |
| 6 | AIN1 | Single-ended analog input 1; shares same input structure and protection as AIN0; supports differential pairing with AIN2 in SGL/DIF=0 mode. |
| 7 | AIN2 | Single-ended analog input 2; usable as differential complement to AIN1 or AIN0 depending on CS[3:0] configuration register setting. |
| 8 | VDD | Positive supply (4.5V–5.5V); must be bypassed with 0.1µF ceramic capacitor directly to Pin 2 (GND) to suppress switching noise on internal reference and T/H circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Internal 4.096V reference | Eliminates need for external precision reference IC or resistor divider, reducing BOM count and layout area in space-constrained designs. |
| AutoShutdown™ mode | Reduces quiescent current to <1µA during idle intervals, extending battery life in intermittent-sampling applications like environmental loggers. |
| Software-configurable input modes | Runtime selection of unipolar/bipolar and single-ended/differential via I²C setup byte-enables one hardware design to serve multiple sensor types. |
| Integrated FIFO with channel-scan | Automatically sequences through up to 4 selected channels and buffers results, reducing host MCU polling overhead and interrupt frequency. |
| Track/Hold acquisition time | 800ns maximum - supports accurate sampling of fast transients without external buffering when source impedance ≤1.5kΩ. |
| High-speed I²C interface | 1.7MHz operation cuts conversion-readout time by >70% vs. standard 100kHz I²C, enabling tighter control loop timing in real-time systems. |
Applications
| Portable Medical Sensors | Battery-Powered Test Equipment |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) front-end digitizing electrochemical sensor output under varying temperature and power conditions. IC Role / Device Role / Timing Role: 4-channel ADC acquiring analog sensor outputs with programmable gain and bipolar capability for offset compensation. Use Value: Internal 4.096V reference ensures stable LSB size across battery discharge; 670µA active current extends coin-cell life to >6 months at 10ksps sampling. |
Use Scenario: Handheld multimeter measuring DC voltage, current, and resistance with auto-ranging and low-noise front-end. IC Role / Device Role / Timing Role: Primary digitizer for analog measurement paths, using channel-scan FIFO to cycle through voltage, shunt, and reference inputs. Use Value: ±1 LSB INL guarantees accurate absolute measurements; software-configurable unipolar/differential mode eliminates need for external op-amp reconfiguration. |
| Solar-Powered Remote Systems | System Supervision |
Use Scenario: Off-grid weather station powered by small solar panel and supercapacitor, logging temperature, humidity, and irradiance. IC Role / Device Role / Timing Role: Low-quiescent ADC acquiring sensor data only during daylight hours, entering AutoShutdown between samples. Use Value: <1µA shutdown current prevents supercapacitor drain overnight; 4.5V–5.5V supply range matches buck-boost regulator output without LDO post-regulation. |
Use Scenario: Industrial PLC module monitoring supply rail voltages, temperature, and fan tachometer signals for fault detection. IC Role / Device Role / Timing Role: Dedicated supervision ADC scanning 4 critical analog points (VCC, VBAT, TEMP, TACH) every 100ms. Use Value: I²C 1.7MHz interface allows all 4 channels to be read in <50µs, minimizing CPU intervention; internal FIFO prevents missed samples during host interrupts. |
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 reference and GPIO-controlled CS. | Lower resolution limits dynamic range; SPI interface increases MCU pin count and firmware complexity vs. I²C. | Select when cost sensitivity outweighs resolution needs and existing SPI infrastructure exists. |
| MAX11607EUA+ | Same 8-pin µMAX package and pinout, but 2.048V internal reference, 2.7V–3.6V supply range, and identical feature set. | Designed for 3.3V systems; incompatible with 5V supply rails; reference voltage halved affects LSB scaling and noise floor. | Choose for 3.3V battery-powered designs where lower supply voltage and reduced reference headroom are acceptable. |
Compared with ADS7822U and MAX11607EUA+, the MAX11606EUA+T uniquely combines 10-bit precision, 5V operation, 4.096V reference, and I²C simplicity in an ultra-small µMAX package-making it optimal for space- and power-constrained 5V embedded systems requiring calibrated analog sensing.
Availability
MAX11606EUA+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 with guaranteed -40°C to +85°C operation and RoHS compliance.
Supply support for MAX11606EUA+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 industrial, medical, and communications applications.
The MAX11606–MAX11611 family was engineered to deliver high-resolution, low-power, multi-channel ADC functionality in minimal PCB area-targeting portable instrumentation, energy harvesting nodes, and distributed sensor networks.
FAQ
What is the maximum sampling rate achievable with the MAX11606EUA+T?
The MAX11606EUA+T achieves a maximum sampling rate of 94.4ksps when using an external clock in I²C High-Speed Mode (1.7MHz). This requires proper bus capacitance control (≤400pF) and correct setup of the SCAN[1:0] bits. At this rate, average supply current is 670µA with internal reference enabled. Lower rates reduce current linearly-e.g., 40ksps draws 230µA.
Can the MAX11606EUA+T operate with an external reference voltage?
Yes, the MAX11606EUA+T supports external reference voltages from 1V to VDD. When using an external reference, the internal 4.096V reference is disabled. The REF pin (Pin 1) becomes an input, and performance specifications-including INL, DNL, and SINAD-are referenced to the applied external voltage rather than the internal reference.
Is the MAX11606EUA+T pin-compatible with other devices in the MAX116xx family?
The MAX11606EUA+T shares the same 8-pin µMAX package and pinout with the MAX11607EUA+, including identical SDA, SCL, GND, VDD, and AINx assignments. However, it is not pin-compatible with 16-pin QSOP variants (e.g., MAX11608–MAX11611) or the 12-pin WLP variant of MAX11607. Electrical differences-especially supply voltage range (4.5V–5.5V vs. 2.7V–3.6V) and reference voltage-require board-level validation before substitution.
What is the purpose of the AIN3/REF pin on the MAX11606EUA+T?
The AIN3/REF pin (Pin 1) serves a dual function: it can act as analog input channel 3 or as the reference voltage terminal. Configuration is controlled via the SEL[2:1] bits in the setup register. When configured as REF output, it sources the 4.096V internal reference and must be decoupled with a 0.1µF capacitor to GND. When used as AIN3, it functions identically to AIN0–AIN2 with full-scale range 0 to VREF.
How does AutoShutdown™ affect system timing in the MAX11606EUA+T?
AutoShutdown™ powers down internal circuitry-including the reference, oscillator, and T/H-between conversions, reducing supply current to <1µA. Upon receiving a new I²C start condition and valid address, the MAX11606EUA+T wakes up and requires a 10µs stabilization delay before accepting a conversion command. This wake-up latency must be accounted for in time-critical polling loops or interrupt-driven architectures.
MAX11606EUA+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:
- 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+T FAQ
1.How can I place an order for MAX11606EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11606EUA+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 MAX11606EUA+T reliable?
The price and inventory of MAX11606EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11606EUA+T is usually 5 days.
3.What payment methods are accepted for MAX11606EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11606EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11606EUA+T?
MAX11606EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11606EUA+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 MAX11606EUA+T?
For technical support, including MAX11606EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11606EUA+T requirements.
6.How does Aetrix verify that MAX11606EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX11606EUA+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 MAX11606EUA+T meets industry standards.
7.What is the process for return or replacement of MAX11606EUA+T?
All MAX11606EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11606EUA+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 MAX11606EUA+T part is unused and in its original packaging.
Return procedure for MAX11606EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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