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Analog Devices Inc./Maxim Integrated MAX1036EKA
- Part No.:
- MAX1036EKA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8
- Datasheet:
-
MAX1036EKA.pdf
- Description:
- 4-CHANNEL SERIAL 8-BIT ADC
- Quantity:
- Payment:
- Shipping:
Inventory:1,200
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Product details
Overview
MAX1036EKA from Maxim Integrated is an 8-bit, 4-channel, low-power analog-to-digital converter (ADC) with integrated track/hold, 4.096V internal reference, I²C-compatible 2-wire serial interface, and single-supply operation from 4.5V to 5.5V. It delivers 188ksps throughput with 350µA supply current, ±2 LSB total unadjusted error, and software-configurable unipolar/single-ended input mode - ideal for battery-powered sensor monitoring in portable medical instruments.
For engineers reviewing the MAX1036EKA datasheet, MAX1036EKA pinout, MAX1036EKA application, or MAX1036EKA equivalent, key selection criteria include its 4-channel SOT23 footprint, 4.096V reference compatibility, I²C fast/high-speed mode support (400kHz/1.7MHz), AutoShutdown™ power management, and guaranteed -40°C to +85°C industrial operation.
Technical Context
The MAX1036EKA employs successive-approximation architecture with internal track/hold and switched-capacitor DAC. Its analog input path supports software-selectable unipolar single-ended operation across four channels (AIN0–AIN3), referenced to GND or external VREF (1V to VDD).
It uses a dedicated 2-wire I²C interface with factory-programmed slave address 1100100, supporting Fast Mode (400kHz) and High-Speed Mode (1.7MHz). Conversion timing is governed by either internal 2.25MHz clock or external SCL, with acquisition time dependent on source impedance and input capacitance (18pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output codes for moderate-precision sensing applications. |
| Sampling Rate | 188ksps maximum - enables real-time capture of signals up to ~200kHz full-linear bandwidth. |
| Total Unadjusted Error | ±2 LSB - defines worst-case deviation from ideal transfer curve without calibration. |
| Supply Current | 350µA at 188ksps, 1µA in AutoShutdown™ - supports multi-year battery life in intermittent-sampling systems. |
| Reference Voltage | 4.096V internal - provides precise 1mV/LSB scaling for 0–4.096V unipolar input range. |
| Input Channels | 4 single-ended (AIN0–AIN3) - simplifies multiplexed sensor interfacing without external MUX. |
| Operating Voltage | 4.5V to 5.5V - compatible with standard 5V logic and regulated industrial power rails. |
| Temperature Range | -40°C to +85°C - qualified for deployment in harsh industrial and outdoor embedded environments. |
Pinout & Package
MAX1036EKA is housed in an 8-pin SOT23 package - compact, surface-mount, and optimized for space-constrained portable designs. The package requires standard reflow profiles and GND-plane thermal relief per Maxim's layout guidelines.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | AIN0 | Analog input channel 0 - primary single-ended sensor input, referenced to GND in unipolar mode. |
| 2 | AIN1 | Analog input channel 1 - second independent sensor input, shares same reference and configuration as AIN0. |
| 3 | AIN2 | Analog input channel 2 - third channel; all four inputs (1–4) are software-multiplexed via CS[3:0] bits. |
| 4 | AIN3/REF | Configurable terminal - functions as AIN3 in analog mode or reference input/output when SEL[2:1]=11. |
| 5 | SCL | I²C clock input - controls data transfer timing; must be pulled high; supports 400kHz/1.7MHz modes. |
| 6 | SDA | I²C bidirectional data line - carries setup/config/conversion data; open-drain, requires pullup resistor. |
| 7 | GND | Analog/digital ground reference - must be connected to system ground plane with low-impedance path. |
| 8 | VDD | Positive supply - 4.5V–5.5V input; bypassed to GND with 0.1µF ceramic capacitor near the pin. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ power management | Reduces supply current to <1µA between conversions - eliminates need for external enable control in duty-cycled systems. |
| Integrated 4.096V reference | Enables 1mV/LSB resolution without external precision reference - reduces BOM count and layout area. |
| I²C high-speed mode (1.7MHz) | Supports 188ksps sampling without external clock generation - simplifies timing design vs. SPI-based ADCs. |
| Software-configurable input mode | Unipolar/single-ended operation selected via configuration register - avoids hardware redesign for signal range changes. |
| Internal track/hold with 2MHz bandwidth | Accurately captures transients up to 2MHz - supports undersampling of higher-frequency signals with anti-alias filtering. |
| Small 8-pin SOT23 footprint | 0.95mm × 2.9mm body - fits into ultra-compact PCB areas typical of handheld and wearable devices. |
Applications
| Portable Medical Sensors | Battery-Powered Test Equipment |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) front-end digitizing electrochemical sensor output. IC Role / Device Role / Timing Role: 4-channel ADC acquiring analog voltage from multiple sensor electrodes with synchronized sampling. Use Value: 350µA active current and AutoShutdown™ extend coin-cell battery life beyond 12 months in intermittent-read mode. |
Use Scenario: Handheld multimeter measuring DC voltage, current, and temperature across multiple ranges. IC Role / Device Role / Timing Role: Primary data acquisition engine converting scaled analog inputs into digital values for LCD display and storage. Use Value: Integrated 4.096V reference ensures consistent 1mV/LSB scaling across all measurement ranges without trimming. |
| Solar-Powered Remote Monitoring | System Supervision in Industrial Controllers |
|
Use Scenario: Solar-charged environmental node logging temperature, humidity, and light intensity over weeks. IC Role / Device Role / Timing Role: Low-power analog interface aggregating sensor outputs before transmission via LoRaWAN or NB-IoT. Use Value: -40°C to +85°C rating and 4.5–5.5V supply tolerance ensure reliable operation under wide ambient and PV panel voltage variation. |
Use Scenario: PLC module monitoring rail voltages, fan tachometers, and thermistor-based temperature zones. IC Role / Device Role / Timing Role: Dedicated supervision ADC providing real-time health metrics to main controller via I²C. Use Value: Four independent inputs reduce external component count versus discrete op-amp + ADC solutions. |
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 (2.7–3.6V), no internal reference - requires external 2.5V ref. | Targets lower-voltage systems; lacks AutoShutdown™ and I²C compatibility - needs SPI host and ref circuitry. | Choose ADS7822U only if existing design uses SPI and 3.3V rails; MAX1036EKA offers simpler 5V I²C integration. |
| MCP3204-I/P | 12-bit, 4-channel, SPI interface, 2.7–5.5V supply, internal 4.096V ref, but no AutoShutdown™ - 320µA typical at 100ksps. | Higher resolution but slower max rate (100ksps); larger DIP-14 package - unsuitable for space-constrained portable use. | Select MCP3204-I/P when 12-bit precision outweighs size/power trade-offs; MAX1036EKA better fits compact, ultra-low-power roles. |
Compared with ADS7822U and MCP3204-I/P, MAX1036EKA uniquely combines I²C simplicity, 5V operation, AutoShutdown™ sub-µA sleep, and SOT23 size - making it optimal for new battery-powered designs where bus compatibility and board area are critical.
Availability
MAX1036EKA is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered test equipment, and solar-powered remote monitoring requiring stable component supply and long-term industrial-grade availability.
Supply support for MAX1036EKA 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 leader in precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, medical, and communications markets.
The MAX1036–MAX1039 family was designed specifically for ultra-low-power, multichannel data acquisition in space- and energy-constrained portable systems - emphasizing integration, I²C ease-of-use, and extended temperature reliability.
FAQ
What is the operating supply voltage range for MAX1036EKA?
The MAX1036EKA operates from 4.5V to 5.5V - a dedicated 5V-range supply window distinct from the 2.7–3.6V range used by the MAX1037/MAX1039 variants. This ensures compatibility with standard 5V logic systems and eliminates level-shifting requirements in 5V microcontroller interfaces.
Does MAX1036EKA include an internal voltage reference?
Yes, MAX1036EKA features a factory-trimmed 4.096V internal reference, enabling precise 1mV/LSB conversion scaling without external components. This reference is active by default and can be disabled to use an external reference from 1V to VDD, as configured via the SEL[2:1] bits.
How many analog input channels does MAX1036EKA support?
MAX1036EKA supports four single-ended analog input channels (AIN0–AIN3), selectable via the CS[3:0] configuration bits. It does not support pseudo-differential or 12-channel modes - those are exclusive to the MAX1038/MAX1039 variants in the same family.
What I²C modes does MAX1036EKA support, and what are their maximum speeds?
MAX1036EKA supports both I²C Fast Mode (400kHz) and High-Speed Mode (1.7MHz). High-Speed Mode is required to achieve the full 188ksps sampling rate; Fast Mode limits throughput to ~44ksps. Mode selection is initiated by the master sending the HS-mode master code (00001XXX).
What package type is used for MAX1036EKA, and what are its key mechanical attributes?
MAX1036EKA is packaged in an 8-pin SOT23 case (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm with 0.95mm pin pitch. Its small footprint, low thermal resistance, and standard reflow compatibility make it ideal for high-density portable PCB layouts.
MAX1036EKA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 188k
- Number of Inputs:
- 2, 4
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 2:1
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 4.5V ~ 5.5V
- Features:
- Internal Oscillator
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- SOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1036EKA FAQ
1.How can I place an order for MAX1036EKA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1036EKA 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 MAX1036EKA reliable?
The price and inventory of MAX1036EKA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1036EKA is usually 5 days.
3.What payment methods are accepted for MAX1036EKA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1036EKA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1036EKA?
MAX1036EKA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1036EKA 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 MAX1036EKA?
For technical support, including MAX1036EKA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1036EKA requirements.
6.How does Aetrix verify that MAX1036EKA is sourced from the original manufacturer or authorized distributors?
All MAX1036EKA 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 MAX1036EKA meets industry standards.
7.What is the process for return or replacement of MAX1036EKA?
All MAX1036EKA units undergo pre-shipment inspection (PSI). If there is an issue with MAX1036EKA, 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 MAX1036EKA part is unused and in its original packaging.
Return procedure for MAX1036EKA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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