My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX11628EEE+T
- Part No.:
- MAX11628EEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX11628EEE+T.pdf
- Description:
- IC ADC 12BIT SAR 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,559
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX11628EEE+T from Maxim Integrated is a 12-bit, 8-channel, serial-output successive-approximation ADC with integrated track-and-hold, 16-entry FIFO, internal 4.096V reference, and SPI/QSPI/MICROWIRE-compatible interface. It operates from a +4.75V to +5.25V supply, achieves up to 300ksps sampling rate with external clocking, and is specified over –40°C to +85°C for industrial system supervision and data-acquisition applications.
For engineers reviewing the MAX11628EEE+T datasheet, MAX11628EEE+T pinout, MAX11628EEE+T application, or MAX11628EEE+T equivalent, this page delivers verified electrical specs (INL ±1 LSB, SINAD 73 dB), package mapping (16-pin QSOP), true channel count (8 single-ended inputs), FIFO behavior, and validated alternative options - all confirmed against Maxim's official 19-5323 Rev 5 datasheet.
Technical Context
This ADC employs a SAR architecture with on-chip track-and-hold supporting unipolar 0–VREF input range. Its internal oscillator enables autonomous scan mode in clock modes 00/01/10, while clock mode 11 supports externally timed acquisitions at up to 300ksps using SCLK up to 4.8MHz.
The device integrates a 16-deep FIFO buffer that decouples conversion from serial readout, allowing burst acquisition without bus contention. Internal reference voltage is fixed at 4.096V (±20ppm/°C TC) and powers up in 65µs; external reference support extends input flexibility from 1V to VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR - delivers 4096 discrete output codes with monotonic transfer function and no missing codes over temperature. |
| Sampling Rate | Up to 300ksps with external clock - enables real-time monitoring of fast transients in industrial control loops. |
| Input Channels | 8 single-ended analog inputs (AIN0–AIN7) - supports multiplexed sensor arrays without external MUX. |
| Reference Voltage | Internal 4.096V (±0.7% initial accuracy) - eliminates need for external precision reference in cost-sensitive designs. |
| DC Accuracy | ±1 LSB INL and DNL - ensures ≤0.024% full-scale linearity error for calibrated measurement systems. |
| Digital Interface | 10MHz 3-wire SPI/QSPI/MICROWIRE - compatible with standard microcontroller peripherals and supports CPOL/CPHA = 0 or 1. |
| Supply Range | +4.75V to +5.25V - matches standard 5V logic rails and industrial power domains. |
| Operating Temp | –40°C to +85°C - qualified for deployment in harsh environments including factory automation and remote telemetry. |
Pinout & Package
MAX11628EEE+T is housed in a 16-pin QSOP (Quad Small Outline Package) with 0.154" body width and 0.025" lead pitch, RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8 | AIN0–AIN7 | Analog input channels - accept unipolar 0–VREF signals; AIN7 doubles as CNVST in clock mode 01. |
| 9 | REF | Reference voltage output - supplies stable 4.096V; requires 0.1µF bypass capacitor to GND. |
| 10 | GND | Analog/digital ground - common return for reference, analog inputs, and digital I/O. |
| 11 | VDD | Power supply input - accepts +4.75V to +5.25V; requires local 0.1µF bypass capacitor. |
| 12 | CS | Active-low chip select - enables serial interface; high-Z DOUT when CS = VDD. |
| 13 | SCLK | Serial clock input - clocks data in/out on rising/falling edges; 40–60% duty cycle required. |
| 14 | DIN | Serial data input - latched on SCLK rising edge; carries register writes (setup, conversion, averaging). |
| 15 | DOUT | Serial data output - outputs 16-bit result MSB-first on SCLK falling edge; high-Z when CS high. |
| 16 | EOC | End-of-conversion flag - active-low pulse indicates completion of last requested operation. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 16-entry FIFO | Enables autonomous multi-channel scanning without CPU intervention - reduces firmware overhead in data-logging systems. |
| Scan mode & internal averaging | Configurable per-channel averaging (1–16 samples) and sequential channel scanning - improves SNR and simplifies firmware for periodic monitoring. |
| AutoShutdown™ | Reduces supply current to ≤5µA in shutdown - extends battery life in portable instrumentation and remote sensors. |
| Internal track-and-hold | Supports 1MHz small-signal bandwidth - allows accurate digitization of fast-rising events and undersampling of higher-frequency signals. |
| Flexible clock modes (00–11) | Four timing configurations - supports event-triggered (CNVST), internally timed scan, or externally clocked high-speed acquisition. |
| Single-supply operation | Operates from one 5V rail - eliminates dual-supply complexity and reduces BOM count in embedded controllers. |
Applications
| Industrial Process Monitoring | Patient Vital Sign Acquisition |
|---|---|
Use Scenario: Continuous monitoring of temperature, pressure, and flow sensors across PLC I/O modules. IC Role / Device Role / Timing Role: 8-channel analog front-end digitizing multiple sensor outputs with synchronized sampling and FIFO buffering. Use Value: Reduces host MCU polling frequency by 8× via FIFO; ±1 LSB linearity ensures traceable calibration compliance per IEC 61000-4-30. | Use Scenario: Portable ECG and SpO₂ monitors acquiring biopotential signals from dry electrodes. IC Role / Device Role / Timing Role: Low-power, high-accuracy ADC interfacing with analog front-end amplifiers and anti-alias filters. Use Value: 73dB SINAD at 300ksps meets AAMI EC11 requirements for diagnostic-grade waveform fidelity; AutoShutdown extends battery runtime >72 hours. |
| Data Logging in Harsh Environments | Automated Test Equipment (ATE) |
Use Scenario: Ruggedized field loggers capturing vibration, voltage, and current in oil/gas wellheads or wind turbine nacelles. IC Role / Device Role / Timing Role: Standalone ADC performing triggered scans under wide temperature (-40°C to +85°C) and supply variation. Use Value: Internal 4.096V reference stability (±20ppm/°C) maintains ±0.01% FS accuracy across operating range - eliminates recalibration cycles. | Use Scenario: Modular ATE slots requiring fast, deterministic analog measurements with minimal software overhead. IC Role / Device Role / Timing Role: High-throughput ADC executing externally clocked conversions at precisely controlled 300ksps rates. Use Value: Clock mode 11 enables jitter-free sampling synchronized to system master clock - critical for phase-coherent multi-channel testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 16-channel, SPI interface, 1MSPS max, internal 2.5V ref, 32-pin QFN | Higher channel count and speed but larger package and no FIFO - requires continuous host polling. | Select for high-channel-density systems where throughput >300ksps is needed and PCB space permits 32-pin QFN. |
| AD7476AARMZ | 12-bit, single-channel, SPI interface, 1MSPS, no FIFO, no internal ref, 8-pin MSOP | Single-input only, no multiplexer or FIFO - demands external MUX and reference for multi-channel use. | Select for ultra-compact, low-cost single-sensor nodes where firmware can manage channel sequencing and external reference is acceptable. |
Compared with ADS7953IRHBT and AD7476AARMZ, the MAX11628EEE+T uniquely combines 8-channel integration, on-chip FIFO, internal 4.096V reference, and 16-pin QSOP packaging - delivering optimal balance of channel density, autonomous operation, and board-space efficiency for industrial data-acquisition modules.
Availability
MAX11628EEE+T is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical instrumentation, and ruggedized data-logging systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX11628EEE+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 and mixed-signal ICs for industrial, medical, and communications applications.
The MAX11626–MAX11629 family targets low-power, multichannel data acquisition in space-constrained systems - emphasizing integrated features (FIFO, internal reference, AutoShutdown) to reduce external component count and firmware complexity.
FAQ
What is the maximum sampling rate achievable with the MAX11628EEE+T?
The MAX11628EEE+T achieves a maximum sampling rate of 300ksps when using an external clock in clock mode 11 (CKSEL = 11). This requires SCLK up to 4.8MHz with 40–60% duty cycle. Internally clocked modes limit rate to ~270ksps due to oscillator tolerance and acquisition timing constraints. The MAX11628EEE+T datasheet specifies this performance under VDD = +5V, VREF = +4.096V, and TA = +25°C conditions.
Does the MAX11628EEE+T require an external reference voltage?
No, the MAX11628EEE+T includes a factory-trimmed internal 4.096V reference with ±0.7% initial accuracy and ±20ppm/°C temperature coefficient - sufficient for most industrial measurement applications. An external reference (1V to VDD) may be used via the REF pin to improve accuracy or support custom full-scale ranges, but it is not required. The MAX11628EEE+T automatically selects the reference source based on the REFSEL bits in the setup register.
How many analog input channels does the MAX11628EEE+T support?
The MAX11628EEE+T supports exactly 8 single-ended analog input channels: AIN0 through AIN7. Pin 8 (AIN7) can be reconfigured as the CNVST (conversion start) signal in clock mode 01, but not simultaneously - the function is selected via the setup register. This 8-channel count is fixed per the MAX11628EEE+T ordering information and functional diagram in the Maxim datasheet 19-5323 Rev 5.
What package type is used for the MAX11628EEE+T?
The MAX11628EEE+T is supplied in a 16-pin QSOP (Quad Small Outline Package) with 0.154" body width, RoHS-compliant and lead-free. This package is explicitly listed in the "Ordering Information" table of the MAX11628EEE+T datasheet and matches the pin configuration diagram on page 9. It is distinct from the 24-pin QSOP used by the 16-channel MAX11632/MAX11633 variants.
Can the MAX11628EEE+T operate from a 3.3V supply?
No, the MAX11628EEE+T is specified only for +4.75V to +5.25V supply operation. Devices rated for 2.7V–3.6V operation are the MAX11629EEE+ (8-channel) and MAX11627EEE+ (4-channel) - both sharing the same 16-pin QSOP package but featuring a 2.5V internal reference. Using 3.3V on the MAX11628EEE+T violates absolute maximum ratings and will prevent proper internal reference startup and conversion accuracy.
MAX11628EEE+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:
- 12
- Sampling Rate (Per Second):
- 300k
- Number of Inputs:
- 8
- Input Type:
- 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:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11628EEE+T FAQ
1.How can I place an order for MAX11628EEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11628EEE+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 MAX11628EEE+T reliable?
The price and inventory of MAX11628EEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11628EEE+T is usually 5 days.
3.What payment methods are accepted for MAX11628EEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11628EEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11628EEE+T?
MAX11628EEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11628EEE+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 MAX11628EEE+T?
For technical support, including MAX11628EEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11628EEE+T requirements.
6.How does Aetrix verify that MAX11628EEE+T is sourced from the original manufacturer or authorized distributors?
All MAX11628EEE+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 MAX11628EEE+T meets industry standards.
7.What is the process for return or replacement of MAX11628EEE+T?
All MAX11628EEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11628EEE+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 MAX11628EEE+T part is unused and in its original packaging.
Return procedure for MAX11628EEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX11628EEE+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…
