My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX11605EEE+T
- Part No.:
- MAX11605EEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX11605EEE+T.pdf
- Description:
- IC ADC 8BIT SAR 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,313
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX11605EEE+T from Maxim Integrated is an 8-bit, 12-channel, low-power analog-to-digital converter with integrated track/hold, 2.048V internal reference, I²C-compatible 2-wire serial interface, and operation from a single 2.7V–3.6V supply. It delivers 188ksps throughput with 350µA supply current and supports software-configurable unipolar/bipolar and single-ended/pseudo-differential input modes. It is used in battery-powered sensor monitoring and portable instrumentation where compact size and ultra-low quiescent power are critical.
For engineers reviewing the MAX11605EEE+T datasheet, MAX11605EEE+T pinout, MAX11605EEE+T application, or MAX11605EEE+T equivalent, key selection criteria include its 12-channel count, ±1 LSB total unadjusted error (TUE), 16-pin QSOP package, 2.048V internal reference, and guaranteed operation across –40°C to +85°C.
Technical Context
The MAX11605EEE+T employs successive-approximation architecture with integrated track/hold capacitor and switched-capacitor DAC. Its analog input multiplexer supports up to 12 single-ended or 6 pseudo-differential channels, with channel selection controlled via CS[3:0] bits in the configuration register.
It operates in either internal clock mode (2.25MHz) or external clock mode (up to 1.7MHz I²C high-speed mode), with conversion time fixed at 4.7µs (external clock) or 6.1µs (internal clock). The device features AutoShutdown™, reducing supply current to <1µA between conversions at low throughput rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - provides 256 discrete digital output levels for moderate-precision sensing applications. |
| Total Unadjusted Error (TUE) | ±1 LSB - ensures end-point accuracy within one least-significant bit over temperature without calibration. |
| Input Channels | 12 single-ended or 6 pseudo-differential - enables multi-sensor acquisition without external MUX, reducing BOM and layout complexity. |
| Supply Voltage Range | 2.7V to 3.6V - compatible with standard Li-ion/Li-poly battery systems and 3.3V logic domains. |
| Internal Reference | 2.048V ±6% - optimized for integer-ratio scaling with 8-bit resolution (2.048V / 256 = 8mV/LSB), simplifying firmware scaling. |
| Max Throughput Rate | 188ksps - supports real-time sampling of signals up to ~94kHz (Nyquist), suitable for vibration, audio envelope, or fast thermal monitoring. |
| Supply Current @ 188ksps | 350µA - enables >1-year operation on a 200mAh coin cell when duty-cycled at 10ksps (8µA avg). |
Pinout & Package
MAX11605EEE+T is housed in a 16-pin QSOP (Quad Small Outline Package) with 0.154" body width and 0.025" lead pitch, optimized for space-constrained PCB layouts while maintaining hand-solderability and thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | AIN11/REF | Configurable terminal: serves as analog input channel 11 or reference input/output depending on SEL[2:1] bits; requires 0.01µF decoupling when used as REF. |
| 2–10 | AIN0–AIN8 | Primary analog input channels; support software-selectable unipolar/bipolar and single-ended/pseudo-differential modes. |
| 11–12 | AIN9–AIN10 | Additional analog inputs completing the 12-channel set; share same electrical specs and configuration flexibility as AIN0–AIN8. |
| 13 | SCL | I²C serial clock input; supports Fast Mode (400kHz) and High-Speed Mode (1.7MHz); requires external pull-up resistor. |
| 14 | SDA | I²C bidirectional data line; open-drain output; shares bus with other I²C peripherals; requires external pull-up resistor. |
| 15 | GND | Analog and digital ground reference; must be connected to low-impedance system ground plane to minimize noise coupling into ADC core. |
| 16 | VDD | Positive supply input; bypassed to GND with 0.1µF ceramic capacitor placed adjacent to pin to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces IDD to <1µA between conversions - eliminates need for external enable control in intermittent-sampling applications. |
| Software-Configurable Input Modes | Single-ended (12 ch) or pseudo-differential (6 ch), unipolar/bipolar - enables reuse across diverse sensor types (RTDs, thermocouples, bridge sensors) without hardware change. |
| Integrated 2.048V Reference | 120ppm/°C tempco, ±6% initial tolerance - eliminates external reference IC, saving board area and cost while maintaining 8-bit linearity. |
| I²C High-Speed Mode Support | 1.7MHz clock rate - cuts conversion readout time by >4× vs. standard mode, improving system responsiveness in closed-loop control. |
| Internal FIFO with Channel-Scan Mode | 12-byte RAM buffer - allows autonomous scanning of all 12 channels with single I²C transaction, reducing MCU intervention overhead. |
Applications
| Portable Medical Sensors | Battery-Powered Environmental Monitors |
|---|---|
Use Scenario: Continuous acquisition of ECG lead voltages, skin temperature, and SpO₂ photodiode outputs in handheld pulse oximeters. IC Role / Device Role / Timing Role: Primary 12-channel front-end ADC performing synchronized sampling of analog biosignals prior to digital filtering and wireless transmission. Use Value: 350µA active current and AutoShutdown™ extend battery life beyond 72 hours on two AAA cells; 2.048V reference ensures consistent 8mV/LSB scaling across production units. |
Use Scenario: Multi-parameter logging (CO₂, humidity, ambient light, barometric pressure) in solar-charged field-deployed nodes. IC Role / Device Role / Timing Role: Central sensor hub ADC interfacing with calibrated analog-output sensors via I²C-controlled sequencing. Use Value: 12-channel integration eliminates external multiplexer, reducing component count and failure points; 16-pin QSOP footprint fits compact 2-layer PCB designs. |
| Solar-Powered Remote Telemetry Units | Industrial Equipment Health Monitoring |
Use Scenario: Periodic measurement of panel voltage, battery SOC, load current, and ambient temperature in off-grid solar controllers. IC Role / Device Role / Timing Role: Low-duty-cycle ADC acquiring 6–8 analog system parameters every 5 minutes, then entering deep sleep. Use Value: <1µA shutdown current prevents measurable battery drain during 99.9% of operational time; internal reference avoids drift-induced calibration drift over years of field use. |
Use Scenario: Vibration, temperature, and current sensing on motor drives and PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Embedded ADC providing local analog signal digitization before CAN or Ethernet transmission to central controller. Use Value: Guaranteed –40°C to +85°C operation ensures reliability in uncontrolled industrial enclosures; ±1 LSB TUE supports predictive maintenance algorithms requiring stable baseline measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit, 4-channel, SPI interface, 3.3V-only supply, no internal reference - requires external 2.5V ref and level-shifting for mixed-voltage systems. | Limited to 4 inputs; lacks channel-scan FIFO and AutoShutdown - increases firmware overhead and power management complexity. | Select when SPI is preferred over I²C and channel count is ≤4; not drop-in due to interface, pinout, and reference differences. |
| MAX11603EEE+ | 8-bit, 8-channel, identical 16-pin QSOP package, 2.048V internal reference, same I²C timing and power specs - differs only in channel count and top-mark. | Supports fewer analog sources; suitable where 8 channels suffice and board layout re-use is prioritized. | Drop-in replacement if system uses ≤8 analog inputs; identical footprint, supply, and interface simplify redesign. |
Compared with MAX11605EEE+T, the MAX11603EEE+ offers identical performance per channel but reduces input count from 12 to 8 - advantageous for cost-sensitive or space-constrained designs with lower channel requirements; the ADS7822U trades I²C simplicity for SPI compatibility and lacks integrated reference, increasing BOM and design effort.
Availability
MAX11605EEE+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental monitors, solar-powered telemetry units, and industrial equipment health monitoring requiring stable component supply and long-term manufacturability.
Supply support for MAX11605EEE+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) is a semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX11600–MAX11605 family was designed for ultra-low-power, multichannel data acquisition in space- and energy-constrained systems - emphasizing integration (reference, T/H, clock), small footprint (QSOP/SOT23), and intelligent power management (AutoShutdown™).
FAQ
What is the maximum sampling rate of the MAX11605EEE+T?
The MAX11605EEE+T achieves a maximum sampling rate of 188ksps when using an external clock in I²C high-speed mode. At this rate, it draws 350µA from a 2.7V–3.6V supply. Lower throughput rates reduce current consumption - e.g., 8µA at 10ksps - thanks to AutoShutdown™ operation between conversions.
Does the MAX11605EEE+T require an external reference voltage?
No, the MAX11605EEE+T includes a factory-trimmed 2.048V internal reference with ±6% initial accuracy and 120ppm/°C temperature coefficient. It can also operate with an external reference from 1V to VDD, but the internal reference eliminates the need for external components in most 8-bit applications.
How many analog input channels does the MAX11605EEE+T support?
The MAX11605EEE+T supports 12 single-ended analog input channels (AIN0–AIN11) or 6 pseudo-differential pairs. Channel selection is software-configurable via the CS[3:0] bits in the configuration register, and the device includes an internal FIFO to enable automatic scanning of all channels in sequence.
What package type is used for the MAX11605EEE+T?
The MAX11605EEE+T is supplied in a 16-pin QSOP (Quad Small Outline Package) with 0.154" body width. This RoHS-compliant, lead-free package provides robust thermal performance and solderability while occupying minimal PCB area - ideal for portable and space-constrained designs.
Is the MAX11605EEE+T compatible with standard I²C buses?
Yes, the MAX11605EEE+T implements a fully compliant I²C interface supporting both Fast Mode (400kHz) and High-Speed Mode (1.7MHz). It uses open-drain SDA/SCL pins with standard START/STOP/ACK protocols and tolerates bus capacitance up to 400pF - interoperating seamlessly with microcontrollers and other I²C peripherals.
MAX11605EEE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 188k
- Number of Inputs:
- 6, 12
- Input Type:
- Pseudo-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:
- -
MAX11605EEE+T FAQ
1.How can I place an order for MAX11605EEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11605EEE+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 MAX11605EEE+T reliable?
The price and inventory of MAX11605EEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11605EEE+T is usually 5 days.
3.What payment methods are accepted for MAX11605EEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11605EEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11605EEE+T?
MAX11605EEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11605EEE+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 MAX11605EEE+T?
For technical support, including MAX11605EEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11605EEE+T requirements.
6.How does Aetrix verify that MAX11605EEE+T is sourced from the original manufacturer or authorized distributors?
All MAX11605EEE+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 MAX11605EEE+T meets industry standards.
7.What is the process for return or replacement of MAX11605EEE+T?
All MAX11605EEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11605EEE+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 MAX11605EEE+T part is unused and in its original packaging.
Return procedure for MAX11605EEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX11605EEE+T 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…
