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Analog Devices Inc./Maxim Integrated MAX11616DB+
- Part No.:
- MAX11616DB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Datasheet:
-
MAX11616DB+.pdf
- Description:
- KIT EVALUATION FOR MAX11616
- Quantity:
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Product details
Overview
The MAX11616DB+ from Maxim Integrated is a 12-bit, 12-channel I²C-compatible analog-to-digital converter with internal track/hold, 4.096V reference, and single-supply operation from 4.5V to 5.5V. It delivers 94.4ksps throughput, consumes only 670µA at max rate, and supports software-configurable unipolar/bipolar and single-ended/differential input modes. It is used in battery-powered test equipment and solar-powered remote systems for precision sensor digitization.
For engineers reviewing the MAX11616DB+ datasheet, MAX11616DB+ pinout, MAX11616DB+ application, or MAX11616DB+ equivalent, key selection criteria include its 12-channel count, 4.096V internal reference, QSOP-16 package, I²C high-speed mode (1.7MHz), and guaranteed -40°C to +85°C operation - all critical for compact, low-power embedded data acquisition designs.
Technical Context
The MAX11616DB+ employs successive-approximation architecture with fully differential track-and-hold circuitry and a switched-capacitor DAC. Its analog front-end supports 12 single-ended or 6 fully differential inputs, configurable via CS[3:0] and SGL/DIF bits in the setup register.
It integrates an internal 2.8MHz clock and accepts external clocks for timing control. The I²C interface operates in Fast Mode (400kHz) and High-Speed Mode (1.7MHz), with programmable slave address 0110101b and built-in AutoShutdown™ reducing current to <1µA between conversions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - provides 4096 discrete output codes for high-fidelity signal digitization |
| Input Channels | 12 single-ended or 6 fully differential - enables multi-sensor monitoring without external multiplexing |
| Sampling Rate | 94.4ksps maximum - supports real-time capture of signals up to ~3MHz bandwidth (Nyquist) |
| Supply Voltage | 4.5V to 5.5V - compatible with standard 5V logic and industrial power rails |
| Internal Reference | 4.096V ±1.5% - enables precise full-scale definition without external reference components |
| INL / DNL | ±1 LSB - ensures monotonicity and minimal code-width variation across temperature |
| I²C Speed | 1.7MHz High-Speed Mode - reduces data transfer time and host CPU overhead |
| Operating Temp | -40°C to +85°C - qualified for industrial and outdoor environmental deployment |
Pinout & Package
The MAX11616DB+ is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.635mm pitch), optimized for space-constrained PCB layouts while maintaining hand-solderability and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN11 | Analog Input Channels | 12 dedicated input terminals supporting software-selectable single-ended or differential acquisition |
| AIN11/REF | Configurable Analog Input or Reference I/O | Functions as AIN11 or outputs/accepts reference voltage based on SEL[2:1] register setting |
| SCL | I²C Clock Input | Master-generated clock synchronizing all serial data transfers; supports 1.7MHz high-speed timing |
| SDA | I²C Data I/O | Bidirectional open-drain line for command and conversion result exchange with microcontroller host |
| GND | Analog/Digital Ground | Common return path for analog signal integrity and digital logic; requires low-impedance PCB connection |
| VDD | Positive Supply | Single 4.5V–5.5V rail powering analog core, reference, and digital interface; bypass with 0.1µF capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces supply current to <1µA during idle periods - extends battery life in portable instrumentation |
| Internal FIFO with Channel-Scan Mode | Automatically sequences through selected channels without host intervention - simplifies firmware for periodic monitoring |
| Software-Configurable Input Modes | Runtime selection of unipolar/bipolar and single-ended/differential via I²C registers - eliminates hardware redesign for signal range changes |
| Low Acquisition Time | 800ns track/hold acquisition - enables accurate sampling of fast transients without external buffering |
| Integrated 4.096V Reference | 25ppm/°C tempco and 1.5kΩ source impedance - eliminates external reference IC and reduces BOM cost/area |
| Robust Analog Input Protection | Clamps inputs to GND–0.3V and VDD+0.3V - withstands transient overvoltage without damage |
Applications
| Handheld Portable Applications | Medical Instruments |
|---|---|
Use Scenario: Compact multimeter or environmental sensor node powered by two AA batteries. IC Role / Device Role / Timing Role: Primary ADC digitizing thermistor, pressure, and humidity sensor outputs via 12-channel scan mode. Use Value: 670µA active current and <1µA shutdown enable >1-year battery life; 4.096V reference ensures consistent measurement accuracy across voltage droop. | Use Scenario: Portable ECG or patient vital sign monitor requiring galvanic isolation and low noise. IC Role / Device Role / Timing Role: Isolated-side ADC capturing amplified biopotential signals with differential input configuration. Use Value: Fully differential input mode rejects common-mode interference; ±1 LSB INL maintains clinical-grade linearity over temperature. |
| Battery-Powered Test Equipment | Solar-Powered Remote Systems |
Use Scenario: Field-deployable data logger measuring voltage, current, and temperature in telecom cabinets. IC Role / Device Role / Timing Role: Central ADC interfacing with op-amp signal conditioning stages and microcontroller via I²C. Use Value: 1.7MHz I²C speed minimizes bus occupancy; internal FIFO offloads host CPU during burst acquisition cycles. | Use Scenario: Off-grid weather station harvesting energy from small PV panel with supercapacitor buffer. IC Role / Device Role / Timing Role: Low-quiescent ADC acquiring solar irradiance, ambient temperature, and battery voltage. Use Value: 230µA at 40ksps and AutoShutdown™ allow operation during low-light periods; -40°C to +85°C rating ensures reliability in desert or alpine environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, 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 | Requires external reference and SPI host; higher channel count but larger 32-pin QFN package | Select when SPI is preferred over I²C and additional channels justify layout area increase |
| AD7091R-5BRUZ | 12-bit, 4-channel, I²C, 2.09–3.6V supply, 2.5V internal reference, 1MSPS max rate | Lower voltage range and channel count; faster sampling but incompatible supply and reference specs | Select for ultra-low-voltage (e.g., coin-cell) systems where 4 channels suffice and 5V operation is not required |
Compared with ADS7953IRHBT and AD7091R-5BRUZ, the MAX11616DB+ uniquely balances 12-channel count, 5V compatibility, integrated 4.096V reference, and I²C high-speed support - making it optimal for space- and power-constrained industrial data loggers needing drop-in integration with existing 5V microcontrollers.
Availability
The MAX11616DB+ is available at Aetrix Electronics and suitable for battery-powered test equipment, solar-powered remote systems, and handheld portable applications requiring stable component supply and long-term industrial temperature support.
Supply support for MAX11616DB+ 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 industrial, medical, and communications applications.
The MAX11612–MAX11617 family was engineered for ultra-low-power, multi-channel data acquisition in size- and energy-constrained embedded systems - emphasizing integration, I²C simplicity, and wide-temperature reliability.
FAQ
What is the operating supply voltage range for the MAX11616DB+?
The MAX11616DB+ operates from a single supply of 4.5V to 5.5V. This range is fixed per the device variant and differs from the 2.7V–3.6V versions (e.g., MAX11617). Operation outside this window may cause functional failure or damage. The 4.096V internal reference is calibrated for this supply range, ensuring stable full-scale definition across the specified voltage span.
Does the MAX11616DB+ support differential input mode?
Yes, the MAX11616DB+ supports fully differential input mode across up to six channel pairs (e.g., AIN0–AIN1, AIN2–AIN3, etc.), configured via the SGL/DIF bit in the setup register. In this mode, the device measures the voltage difference between paired inputs with ±VREF/2 range in bipolar configuration, enabling rejection of common-mode noise in sensor interfaces and motor control feedback loops.
What is the I²C slave address of the MAX11616DB+?
The MAX11616DB+ has a factory-programmed I²C slave address of 0110101b (0x35 in hexadecimal). This 7-bit address is fixed and non-reprogrammable. The R/W bit (LSB) determines direction: write = 0x6A, read = 0x6B. Address collisions require hardware-level resolution via pull-up resistor configuration or bus isolation, as no address pins are provided.
Can the MAX11616DB+ use an external reference voltage?
Yes, the MAX11616DB+ accepts an external reference voltage from 1V to VDD applied to the AIN11/REF pin. When enabled via SEL[2:1]=11, the internal 4.096V reference is disabled and the external voltage defines full-scale range. External referencing improves system-level accuracy when a higher-precision or temperature-stable reference (e.g., REF5040) is available on the board.
How does AutoShutdown™ reduce power consumption in the MAX11616DB+?
AutoShutdown™ powers down the MAX11616DB+'s analog core and reference between conversions, reducing supply current to less than 1µA at low throughput rates. This feature activates automatically after each conversion completes and remains active until the next I²C read command initiates acquisition - eliminating the need for explicit sleep/wake firmware control in duty-cycled sensing applications.
MAX11616DB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of A/D Converters:
- 1
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 94.4k
- Data Interface:
- I2C, Serial
- Input Range:
- -
- Power (Typ) @ Conditions:
- -
- Utilized IC / Part:
- MAX11616
- Contents:
- Board(s)
MAX11616DB+ FAQ
1.How can I place an order for MAX11616DB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11616DB+ 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 MAX11616DB+ reliable?
The price and inventory of MAX11616DB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11616DB+ is usually 5 days.
3.What payment methods are accepted for MAX11616DB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11616DB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11616DB+?
MAX11616DB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11616DB+ 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 MAX11616DB+?
For technical support, including MAX11616DB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11616DB+ requirements.
6.How does Aetrix verify that MAX11616DB+ is sourced from the original manufacturer or authorized distributors?
All MAX11616DB+ 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 MAX11616DB+ meets industry standards.
7.What is the process for return or replacement of MAX11616DB+?
All MAX11616DB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11616DB+, 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 MAX11616DB+ part is unused and in its original packaging.
Return procedure for MAX11616DB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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