My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX11611EEE+
- Part No.:
- MAX11611EEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX11611EEE+.pdf
- Description:
- IC ADC 10BIT SAR 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,083
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX11611EEE+ from Maxim Integrated is a 10-bit, 12-channel, low-power analog-to-digital converter with integrated track/hold, 2.048V internal reference, I²C-compatible 2-wire interface, and single-supply operation from 2.7V to 3.6V. It delivers 94.4ksps throughput with 670µA supply current and supports software-configurable unipolar/bipolar and single-ended/differential input modes. It is used in battery-powered remote monitoring systems requiring precision, low power, and compact integration.
For engineers reviewing the MAX11611EEE+ datasheet, MAX11611EEE+ pinout, MAX11611EEE+ application, or MAX11611EEE+ equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative parts with functional distinctions, and supply-chain support details specific to the 16-pin QSOP package and -40°C to +85°C industrial temperature grade.
Technical Context
The MAX11611EEE+ employs successive-approximation architecture with a fully differential track-and-hold circuit and switched-capacitor DAC. Its 2-wire serial interface operates in Fast Mode (400kHz) or High-Speed Mode (1.7MHz), where the latter enables full 94.4ksps throughput and requires master-initiated mode switching via 0000 1XXX code.
Analog input configuration is controlled by setup and configuration registers: SGL/DIF bit selects single-ended (4–12 channels) or differential (2–6 channels); BIP/UNI bit enables bipolar (±VREF/2) or unipolar (0 to VREF) range only in differential mode. Internal reference (2.048V) or external reference (1V to VDD) can be selected via register bits, with REF pin serving as input or output depending on SEL[2:1] settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete digital codes for precise quantization of analog sensor or signal inputs. |
| Input Channels | 12 single-ended or 6 fully differential - supports multiplexed sensing across multiple physical inputs without external mux hardware. |
| Sampling Rate | 94.4ksps max (external clock, HS mode) - enables real-time capture of signals up to ~3MHz bandwidth (SINAD > 57dB). |
| Supply Current | 670µA at 94.4ksps; <1µA in AutoShutdown™ - reduces average power in duty-cycled data acquisition systems. |
| Reference Voltage | 2.048V internal (±0.04V over temp) - provides stable scaling for unipolar 0–2.048V or bipolar ±1.024V full-scale ranges. |
| INL / DNL | ±1 LSB integral nonlinearity, ±1 LSB differential nonlinearity - ensures monotonicity and <0.1% end-point accuracy after calibration. |
| I²C Interface | 1.7MHz High-Speed Mode compatible - allows rapid register access and conversion result reads without CPU polling overhead. |
Pinout & Package
The MAX11611EEE+ is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.65mm pitch) with exposed pad for thermal performance and RoHS compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 8–12 | AIN0–AIN11 | 12 analog input terminals; software-mapped for single-ended or differential pairs (e.g., AIN0+/AIN1−) via CS[3:0] and SGL/DIF control. |
| 5 | AIN11/REF | Configurable terminal: serves as AIN11 in standard mode or reference I/O when SEL[2:1]=11; requires 0.1µF decoupling if used as REF output. |
| 6 | SCL | Serial clock input - controls timing of I²C read/write cycles; supports 400kHz Fast Mode and 1.7MHz High-Speed Mode. |
| 7 | SDA | Serial data bidirectional line - carries setup bytes, conversion results, and ACK/NACK signals per I²C protocol. |
| 13 | GND | Analog and digital ground reference - must be connected to low-impedance system ground plane to minimize noise coupling into ADC core. |
| 14 | VDD | Positive supply (2.7V–3.6V) - requires local 0.1µF ceramic bypass capacitor to GND adjacent to pin for stable internal reference and T/H operation. |
| 15, 16 | N.C. | No internal connection - left unconnected; no routing or termination required on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces supply current to <1µA between conversions - eliminates need for external enable control in low-duty-cycle sensor logging. |
| Internal FIFO with Channel-Scan Mode | Automatically sequences through up to 12 channels and stores results - enables burst acquisition without host intervention or timing-critical software loops. |
| Software-Configurable Input Modes | Single-ended/differential and unipolar/bipolar selection via register bits - adapts to diverse sensor outputs (e.g., thermocouples, RTDs, voltage rails) without hardware changes. |
| Integrated 2.048V Reference | 25ppm/°C tempco, 1.968V–2.128V tolerance at +25°C - removes external reference IC, saves board space, and improves system-level accuracy stability. |
| Low Source Impedance Tolerance | Accurate sampling with ≤1.5kΩ source impedance - avoids mandatory op-amp buffering for many industrial sensors and resistive transducers. |
Applications
| Battery-Powered Remote Monitoring | Solar-Powered Environmental Sensing |
|---|---|
|
Use Scenario: Long-term deployment of wireless sensor nodes measuring temperature, humidity, and light in off-grid locations with intermittent solar charging. IC Role / Device Role / Timing Role: Primary ADC digitizing multiple analog sensor outputs; manages autonomous channel scanning and low-power sleep/wake cycles via AutoShutdown™. Use Value: 670µA active current and sub-µA shutdown enable multi-year operation on small Li-ion or supercapacitor banks. |
Use Scenario: Solar-powered weather station collecting soil moisture, barometric pressure, and UV index using calibrated analog sensors. IC Role / Device Role / Timing Role: 12-channel multiplexed ADC with internal reference and I²C interface - interfaces directly to microcontroller without external reference or level-shifting. Use Value: 2.048V internal reference and ±1 LSB INL ensure consistent measurement accuracy across wide temperature (-40°C to +85°C) and supply (2.7V–3.6V) ranges. |
| Medical Instrumentation Front-End | Industrial System Supervision |
|
Use Scenario: Portable ECG or pulse oximeter device acquiring biopotential signals with high common-mode rejection and low noise. IC Role / Device Role / Timing Role: Differential-input ADC configured for bipolar ±1.024V range - captures AC-coupled bio-signals with DC offset rejection. Use Value: Fully differential T/H and 70dB SFDR suppress noise and interference, enabling clean waveform capture at clinical-grade fidelity. |
Use Scenario: PLC or motor drive controller monitoring rail voltages, current shunts, and temperature sensors across multiple subsystems. IC Role / Device Role / Timing Role: Centralized analog monitor with channel-scan FIFO - acquires synchronized snapshots of critical parameters for fault detection. Use Value: 12-channel capability and register-based configuration reduce component count versus discrete ADC solutions while maintaining deterministic timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX11610EEE+ | Same 12-channel QSOP package and pinout, but features 4.096V internal reference and 4.5V–5.5V supply range. | Designed for 5V systems; incompatible with 3.3V logic or 2.7V–3.6V battery rails without level shifting or regulator changes. | Select MAX11610EEE+ only when operating from 5V supply and requiring higher full-scale input range (0–4.096V). |
| ADS7953IRHBT | 12-channel, 10-bit SAR ADC with SPI interface, 2.7V–5.25V supply, and 1MSPS max rate; no integrated reference. | Lacks internal reference and I²C interface - requires external 2.048V reference and GPIO/SPI host driver; higher speed but larger footprint. | Choose ADS7953IRHBT when SPI is preferred, higher throughput (>94.4ksps) is needed, or existing design already uses SPI peripherals. |
Compared with MAX11610EEE+, the MAX11611EEE+ enables direct 3.3V-system integration and lower supply current at equivalent throughput; compared with ADS7953IRHBT, it reduces BOM count and simplifies firmware by eliminating external reference and using standard I²C instead of SPI.
Availability
MAX11611EEE+ is available at Aetrix Electronics and suitable for battery-powered test equipment, solar-powered remote systems, and industrial system supervision requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MAX11611EEE+ 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 delivers ultra-low-power, multichannel data acquisition for space-constrained, energy-sensitive systems - emphasizing integration (reference, T/H, clock), flexible I²C control, and guaranteed -40°C to +85°C operation.
FAQ
What is the maximum sampling rate supported by the MAX11611EEE+?
The MAX11611EEE+ achieves a maximum sampling rate of 94.4ksps when using an external clock in High-Speed I²C Mode (1.7MHz). This requires the bus master to first issue the HS-mode master code (0000 1XXX) to enable the faster timing. At this rate, the device draws 670µA typical supply current and maintains 60dB SINAD performance.
Does the MAX11611EEE+ require an external reference voltage?
No, the MAX11611EEE+ does not require an external reference voltage because it integrates a factory-trimmed 2.048V internal reference with 25ppm/°C temperature coefficient. However, it supports optional external reference input from 1V to VDD via the AIN11/REF pin when higher precision or custom full-scale ranges are needed.
Can the MAX11611EEE+ operate with a 3.3V supply?
Yes, the MAX11611EEE+ is specified to operate from 2.7V to 3.6V, making it fully compatible with standard 3.3V logic and power domains. Its internal 2.048V reference and I²C interface levels are designed for direct interfacing with 3.3V microcontrollers without level shifters.
How many analog input channels does the MAX11611EEE+ support?
The MAX11611EEE+ supports 12 single-ended analog input channels (AIN0–AIN11) or 6 fully differential input pairs. Channel selection and input mode (single-ended vs. differential, unipolar vs. bipolar) are configured entirely through its I²C-accessible setup and configuration registers.
What package type is used for the MAX11611EEE+?
The MAX11611EEE+ is supplied in a 16-pin QSOP package (5.3mm × 10.2mm body, 0.65mm lead pitch) with RoHS-compliant lead-free finish. This surface-mount package supports automated assembly and provides adequate thermal dissipation for its 670µA typical operating current.
MAX11611EEE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 94.4k
- Number of Inputs:
- 6, 12
- 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:
- 16-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11611EEE+ FAQ
1.How can I place an order for MAX11611EEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11611EEE+ 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 MAX11611EEE+ reliable?
The price and inventory of MAX11611EEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11611EEE+ is usually 5 days.
3.What payment methods are accepted for MAX11611EEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11611EEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11611EEE+?
MAX11611EEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11611EEE+ 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 MAX11611EEE+?
For technical support, including MAX11611EEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11611EEE+ requirements.
6.How does Aetrix verify that MAX11611EEE+ is sourced from the original manufacturer or authorized distributors?
All MAX11611EEE+ 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 MAX11611EEE+ meets industry standards.
7.What is the process for return or replacement of MAX11611EEE+?
All MAX11611EEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11611EEE+, 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 MAX11611EEE+ part is unused and in its original packaging.
Return procedure for MAX11611EEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX11611EEE+ Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
