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Analog Devices Inc./Maxim Integrated MAX1027BEEE+T
- Part No.:
- MAX1027BEEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1027BEEE+T.pdf
- Description:
- IC ADC 10BIT SAR 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,154
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Product details
Overview
MAX1027BEEE+T from Maxim Integrated is a 10-bit, 300ksps serial analog-to-digital converter with integrated temperature sensor (±1.2°C error over –40°C to +85°C), internal 2.5V reference (±30ppm/°C drift), and 16-entry FIFO. It supports 8 single-ended or 4 true differential input channels in unipolar/bipolar modes and operates from a single +3V supply drawing 1.05mA at full rate. It targets system supervision and industrial data acquisition where compact size and mixed-signal integration are critical.
For engineers reviewing the MAX1027BEEE+T datasheet, MAX1027BEEE+T pinout, MAX1027BEEE+T application, or MAX1027BEEE+T equivalent, this page delivers verified electrical specs, QSOP-16 pin mapping, real-world use cases in patient monitoring and instrumentation, and two validated alternative parts - all grounded in the official MAX1027/MAX1029/MAX1031 datasheet Rev 5.
Technical Context
The MAX1027BEEE+T implements a fully differential successive-approximation register (SAR) ADC core with on-chip track-and-hold, supporting both single-ended (0–VREF) and true differential (±VREF/2) inputs. Its internal oscillator enables autonomous scan mode operation without external timing control.
It integrates a dedicated temperature-sensing path using the same internal reference and SAR architecture, delivering results in two's complement format at 1/8°C resolution. The 16-deep FIFO buffers conversion results and temperature readings independently, decoupling acquisition from serial readout via SPI/QSPI/MICROWIRE-compatible 3-wire interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for precise voltage quantization. |
| Sampling Rate | 300ksps maximum - supports high-speed transient capture in industrial control loops. |
| INL / DNL | ±1 LSB - ensures monotonicity and no missing codes across –40°C to +85°C operating range. |
| Internal Reference | 2.50V ±20mV (±0.8%) - stable reference enabling self-contained operation without external precision voltage source. |
| Temperature Accuracy | ±1.2°C over full range - suitable for board-level thermal monitoring without calibration. |
| Supply Current | 1.05mA at 300ksps - enables low-power operation in battery-backed or energy-constrained systems. |
| Digital Interface | 10MHz SPI/QSPI/MICROWIRE - compatible with standard microcontroller peripherals and supports CPOL/CPHA = 0 or 1. |
Pinout & Package
MAX1027BEEE+T is housed in a 16-pin QSOP package (5.3mm × 10.2mm), RoHS-compliant and lead-free, rated for –40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or tied to GND per layout best practice. |
| 2–7 | AIN0–AIN5 | Analog input channels - configurable as single-ended or differential pairs (e.g., AIN0/AIN1). |
| 8 | CNVST/AIN7 | Active-low conversion start or analog input 7 - dual-function pin controlled via setup register. |
| 9 | REF-/AIN6 | Negative reference input or analog input 6 - used for external differential reference or expanded channel count. |
| 10 | REF+ | Positive reference input - requires 0.1μF bypass capacitor to GND for noise immunity. |
| 11 | GND | Analog/digital ground - common return for reference, analog inputs, and digital I/O. |
| 12 | VDD | +3V power supply - must be bypassed with 0.1μF capacitor to GND near the pin. |
| 13 | SCLK | Serial clock input - accepts 40–60% duty cycle up to 10MHz; controls data latching and shifting. |
| 14 | CS | Active-low chip select - enables serial interface and places DOUT in high-impedance state when high. |
| 15 | DIN | Serial data input - loads 8-bit command bytes (MSB first) on rising SCLK edge. |
| 16 | DOUT | Serial data output - outputs 16-bit result (MSB first) on falling SCLK edge; tri-stated when CS = high. |
| - | EOC | End-of-conversion output - active-low signal indicates valid data ready in FIFO or after single conversion. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip FIFO buffer | 16-entry depth - allows burst acquisition of multiple channels and temperature without CPU intervention. |
| True differential T/H architecture | Supports AIN0/AIN1 through AIN6/AIN7 pairs - rejects common-mode noise and DC offsets in noisy industrial environments. |
| Configurable clock modes | Four modes (CKSEL[1:0]) - enables autonomous scanning (mode 00), CNVST-triggered sampling (mode 01), or externally clocked high-speed acquisition (mode 11). |
| Internal temperature sensor | ±1.2°C accuracy over –40°C to +85°C - provides board thermal telemetry without external sensor components. |
| AutoShutdown™ | Reduces supply current to ≤0.5μA - extends battery life in portable data loggers during idle periods. |
Applications
| Industrial Process Monitoring | Patient Vital Sign Acquisition |
|---|---|
|
Use Scenario: Real-time monitoring of pressure, flow, and temperature sensors in PLC-based control cabinets. IC Role / Device Role / Timing Role: Central ADC collecting synchronized multi-channel analog data at ≤100ksps with FIFO buffering to prevent data loss during bus contention. Use Value: Eliminates need for external reference and temperature sensor, reducing BOM count by two components while maintaining ±1 LSB linearity over extended temperature range. |
Use Scenario: Portable ECG and SpO₂ monitor acquiring biopotential signals and ambient temperature for calibration compensation. IC Role / Device Role / Timing Role: Low-noise, low-power ADC digitizing differential electrode inputs and on-board thermal reference simultaneously. Use Value: Internal 2.5V reference and ±1.2°C temperature sensor enable accurate gain/offset correction without external trimming components or calibration routines. |
| Data Logging in Harsh Environments | Embedded System Supervision |
|
Use Scenario: Ruggedized environmental logger deployed in outdoor substations measuring voltage, current, and enclosure temperature. IC Role / Device Role / Timing Role: Standalone ADC performing autonomous scans using internal clock mode (CKSEL=00), storing results in FIFO until host MCU reads them. Use Value: 1.05mA active current and AutoShutdown™ extend battery life to >1 year in intermittent-read applications; QSOP-16 package withstands thermal cycling. |
Use Scenario: Motherboard health monitoring in industrial PCs tracking CPU voltage rails, fan tachometer signals, and board temperature. IC Role / Device Role / Timing Role: System supervisor ADC interfacing directly with host processor via SPI, providing calibrated analog telemetry every 100ms. Use Value: Single +3V supply simplifies power design; 10-bit resolution with ±1 LSB INL ensures reliable detection of rail droop or thermal throttling thresholds. |
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 |
|---|---|---|---|
| ADS7822U | 8-bit resolution, no internal reference or temperature sensor, 200ksps max, SOIC-8 package | Limited to lower-precision voltage monitoring only; lacks FIFO and autonomous scan capability | Choose for cost-sensitive, space-constrained designs where 8-bit resolution suffices and external reference is acceptable |
| MAX11100ETE+ | 12-bit resolution, 500ksps, internal reference, no temperature sensor, 16-TQFN package | Higher resolution and speed but no on-die thermal sensing; requires external temperature compensation | Choose when higher dynamic range is required and board-level temperature is measured separately |
Compared with MAX1027BEEE+T, ADS7822U trades resolution and integrated features for lower cost and smaller footprint, while MAX11100ETE+ offers superior resolution and speed at the expense of thermal self-monitoring - making MAX1027BEEE+T optimal for mixed-signal supervision where temperature-aware ADC performance is essential.
Availability
MAX1027BEEE+T is available at Aetrix Electronics and suitable for industrial process monitoring, patient vital sign acquisition, and embedded system supervision requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX1027BEEE+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 MAX1027 series belongs to Maxim's low-power, multichannel ADC product line engineered specifically for system supervision and data-acquisition tasks where integration of reference, temperature sensing, and FIFO reduces system-level complexity.
FAQ
What is the operating temperature range of the MAX1027BEEE+T?
The MAX1027BEEE+T is specified for continuous operation from –40°C to +85°C, matching its "E" grade designation. This extended range is validated across all key parameters including INL, DNL, reference stability, and temperature sensor accuracy, making it suitable for deployment in industrial enclosures and outdoor equipment without derating.
Does the MAX1027BEEE+T require an external reference voltage?
No - the MAX1027BEEE+T includes a factory-trimmed 2.50V internal reference with ±30ppm/°C temperature coefficient and 200μVRMS noise. An external differential reference can be used via REF+/REF– pins, but the internal reference is mandatory for temperature measurements and enables full functionality without external components.
How many analog input channels does the MAX1027BEEE+T support?
The MAX1027BEEE+T supports 8 single-ended analog input channels (AIN0–AIN7) or 4 true differential pairs (e.g., AIN0/AIN1, AIN2/AIN3). Channel configuration is programmable via the setup register, and AIN6 and AIN7 double as REF– and CNVST respectively depending on register settings.
Can the MAX1027BEEE+T perform simultaneous sampling of multiple channels?
No - the MAX1027BEEE+T uses a single SAR ADC core with multiplexed inputs and does not support true simultaneous sampling. However, its fast 3.5μs acquisition time and 16-entry FIFO enable rapid sequential sampling across channels with minimal inter-channel skew, suitable for most system supervision use cases.
What package type is used for the MAX1027BEEE+T?
The MAX1027BEEE+T is supplied in a 16-pin QSOP (Quarter Size Outline Package) with 0.65mm pitch, measuring 5.3mm × 10.2mm. It is RoHS-compliant, lead-free, and rated for the full –40°C to +85°C operating range - distinct from the TQFN variants used for MAX1031.
MAX1027BEEE+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:
- 10
- Sampling Rate (Per Second):
- 300k
- Number of Inputs:
- 4, 8
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- 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:
- Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1027BEEE+T FAQ
1.How can I place an order for MAX1027BEEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1027BEEE+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 MAX1027BEEE+T reliable?
The price and inventory of MAX1027BEEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1027BEEE+T is usually 5 days.
3.What payment methods are accepted for MAX1027BEEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1027BEEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1027BEEE+T?
MAX1027BEEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1027BEEE+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 MAX1027BEEE+T?
For technical support, including MAX1027BEEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1027BEEE+T requirements.
6.How does Aetrix verify that MAX1027BEEE+T is sourced from the original manufacturer or authorized distributors?
All MAX1027BEEE+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 MAX1027BEEE+T meets industry standards.
7.What is the process for return or replacement of MAX1027BEEE+T?
All MAX1027BEEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1027BEEE+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 MAX1027BEEE+T part is unused and in its original packaging.
Return procedure for MAX1027BEEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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