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Analog Devices Inc./Maxim Integrated MAX1067BCEE
- Part No.:
- MAX1067BCEE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1067BCEE.pdf
- Description:
- IC ADC 14BIT SAR 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,849
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Product details
Overview
MAX1067BCEE from Maxim Integrated is a 4-channel, 14-bit successive-approximation ADC with integrated +4.096V reference, internal oscillator, and SPI/QSPI/MICROWIRE-compatible serial interface. It operates from a single +5V analog supply and supports digital logic levels from +2.7V to +5.5V. With ±1 LSB INL (max), 200ksps sampling rate, and 3.6mA supply current at full speed, it targets precision industrial data acquisition in space-constrained motor control and sensor monitoring systems.
For engineers reviewing the MAX1067BCEE datasheet, MAX1067BCEE pinout, MAX1067BCEE application, or MAX1067BCEE equivalent, key selection criteria include its 16-pin QSOP package, commercial temperature range (0°C to +70°C), ±1 LSB INL grade, internal reference accuracy (±42mV over temperature), and scan-mode support for sequential multi-channel conversion without host intervention.
Technical Context
The MAX1067BCEE implements a successive-approximation register (SAR) architecture with integrated track-and-hold, delivering 14-bit resolution and 81dB SINAD at 1kHz input. Its internal +4.096V reference exhibits ±25ppm/°C drift and requires 5ms wake-up time after power-down.
It supports two clocking modes: external SCLK up to 9MHz or internal oscillator at 3.2–4.0MHz. The 4-channel analog multiplexer enables scan mode-converting AIN0–AIN3 sequentially or repeating one channel-with acquisition time fixed at 729ns (external clock) and full conversion time of 3.75µs at 200ksps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 distinct output codes for high-fidelity signal digitization |
| INL (max) | ±1 LSB - ensures monotonicity and ≤0.006% full-scale linearity error across operating temperature |
| Sampling Rate | 200ksps - supports real-time capture of signals up to 10kHz bandwidth (Nyquist-limited) |
| Analog Supply Current | 3.6mA at 200ksps - enables low-power operation while maintaining full-speed performance |
| Reference Voltage | +4.096V (internal) - matches common microcontroller ADC reference domains and simplifies system-level scaling |
| Input Bandwidth | 4MHz - allows accurate sampling of fast transients and supports undersampling applications |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade industrial control and instrumentation environments |
Pinout & Package
MAX1067BCEE is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.65mm pitch), optimized for compact PCB layouts in industrial I/O modules and embedded sensor nodes.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| DOUT (Pin 1) | Serial Data Output | Tri-state output delivering MSB-first conversion result; high-impedance when CS = high, synchronized to SCLK falling edge in SPI mode |
| SCLK (Pin 2) | Serial Clock Input | Drives conversion timing and data transfer; accepts up to 9MHz external clock or enables internal oscillator when left floating |
| DIN (Pin 3) | Serial Data Input | Accepts command/configuration bits (e.g., scan mode enable, reference select) on SCLK rising edge |
| EOC (Pin 4) | End-of-Conversion Flag | Active-low pulse signaling valid data ready at DOUT in internal-clock mode; remains high in external-clock mode |
| AIN0–AIN3 (Pins 5–8) | Analog Input Channels | Four single-ended inputs with 45pF input capacitance; support 0V to VREF input range and tolerate −0.3V to AVDD+0.3V fault conditions |
| REF (Pin 9) | Reference Voltage Terminal | Accepts external reference (3.8V–AVDD−0.2V) or outputs internal +4.096V; requires 10µF bypass to AGND |
| REFCAP (Pin 10) | Reference Bypass Capacitor Node | Connects 0.1µF capacitor to AGND to stabilize internal reference; disabled in external reference mode |
| AGND (Pins 11, 12) | Analog Ground | Star-ground connection point for AVDD return and analog signal references; must be isolated from DGND |
| AVDD (Pin 13) | Analog Power Supply | +4.75V to +5.25V supply powering SAR core, T/H, and reference; bypassed with 0.1µF to AGND |
| CS (Pin 14) | Chip Select | Active-low enable; high state forces shutdown (0.6µA typical), low state initiates conversion sequence and enables DOUT |
| DGND (Pin 15) | Digital Ground | Return path for DVDD and digital I/O; must be connected to system digital ground plane |
| DVDD (Pin 16) | Digital Power Supply | +2.7V to +5.25V supply for interface logic; decoupled with 0.1µF to DGND |
Key Features
| Feature | Design Value |
|---|---|
| Integrated +4.096V Reference | Eliminates external reference IC and reduces BOM count; ±25ppm/°C drift enables stable measurements across 0°C–70°C |
| AutoShutdown™ Power Management | Reduces current to 185µA at 10ksps and <10µA in deep shutdown-critical for battery-backed or energy-harvested systems |
| Scan Mode Operation | Automatically sequences conversions across all four channels without CPU polling or interrupt overhead |
| 4MHz Input Bandwidth | Supports accurate digitization of fast step responses and enables undersampling of RF or ultrasonic signals |
| SPI/QSPI/MICROWIRE Compatibility | Direct interface with ARM Cortex-M, PIC, and MSP430 MCUs using standard 3-wire protocol-no glue logic required |
Applications
| Motor Control Feedback | Industrial I/O Module |
|---|---|
Use Scenario: Sampling current-sense shunt voltages and position encoder signals in servo drives. IC Role / Device Role / Timing Role: Simultaneous 4-channel acquisition of phase currents and rotor position for closed-loop FOC algorithms. Use Value: 14-bit resolution and ±1 LSB INL ensure torque ripple <0.5% at full load; 200ksps rate supports 20kHz PWM update cycles. |
Use Scenario: Digitizing analog sensor outputs (4–20mA, 0–10V) in programmable logic controller (PLC) input cards. IC Role / Device Role / Timing Role: Front-end ADC converting field signals to digital for FPGA or microcontroller processing. Use Value: Integrated reference and 4MHz bandwidth eliminate external op-amp buffers, reducing component count by 30% per channel. |
| Thermocouple Measurement | Accelerometer Monitoring |
Use Scenario: Cold-junction compensation and millivolt-level thermocouple voltage digitization in furnace controllers. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC capturing µV-level differentials with programmable gain staging. Use Value: ±1 LSB INL and 0.35LSB RMS noise enable ±0.5°C measurement accuracy over 0°C–70°C without calibration. |
Use Scenario: Capturing vibration signatures from MEMS accelerometers in predictive maintenance gateways. IC Role / Device Role / Timing Role: High-bandwidth front-end digitizing wide-dynamic-range acceleration waveforms. Use Value: 4MHz input bandwidth preserves harmonic content up to 100kHz, enabling FFT-based bearing fault detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8325IPW | 16-pin TSSOP; 16-bit resolution; no integrated reference; requires external REF3040 | Higher resolution but adds 3 components and layout complexity; lacks AutoShutdown™ | Select when absolute precision >14-bit is mandatory and board area permits extra passives |
| AD7942BRMZ | 16-pin LFCSP; 14-bit; internal reference ±0.1% initial accuracy; 250ksps max | Better INL (±0.5 LSB) but higher supply current (4.5mA); no scan mode or DSP frame-sync capability | Prefer for metrology-grade accuracy where continuous multi-channel sequencing is not required |
Compared with ADS8325IPW and AD7942BRMZ, the MAX1067BCEE offers unique integration of reference, oscillator, and scan-mode sequencing in a drop-in 16-pin QSOP-reducing design cycle time and total solution cost for industrial data loggers and distributed I/O.
Availability
MAX1067BCEE is available at Aetrix Electronics and suitable for motor control feedback loops, industrial I/O modules, and thermocouple measurement systems requiring stable component supply and long-term manufacturability.
Supply support for MAX1067BCEE 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, automotive, and communications markets, emphasizing integration, reliability, and low-power operation.
The MAX1067 family targets space- and power-constrained industrial data-acquisition systems, delivering multichannel 14-bit conversion with integrated reference and intelligent power management in minimal footprint.
FAQ
What is the maximum sampling rate supported by the MAX1067BCEE?
The MAX1067BCEE achieves a maximum sampling rate of 200ksps when using an external 4.8MHz SCLK and operating in 8-bit-wide data-transfer mode. At this rate, the device consumes 3.6mA total supply current with internal reference enabled. Conversion time is fixed at 3.75µs, and the ADC maintains ±1 LSB INL and 81dB SINAD performance across the full 0°C to +70°C temperature range.
Does the MAX1067BCEE require an external reference, or does it have an internal one?
The MAX1067BCEE includes an integrated +4.096V reference with ±25ppm/°C temperature coefficient and 5ms wake-up time. It can operate with this internal reference (bypassed via REFCAP pin) or accept an external reference between 3.8V and AVDD−0.2V. The internal reference eliminates the need for external components in most industrial sensing applications, while the external option supports tighter system-level calibration requirements.
How many analog input channels does the MAX1067BCEE support, and how are they accessed?
The MAX1067BCEE supports four single-ended analog input channels (AIN0–AIN3) via an internal multiplexer. These channels are accessed either individually through command register configuration or automatically in scan mode, which sequentially converts all four channels without host processor intervention. Scan mode is initiated via software control and supports both continuous repetition of one channel or round-robin cycling across all four.
What package type and pin count does the MAX1067BCEE use?
The MAX1067BCEE is supplied in a 16-pin QSOP (Quarter-Size Outline Package) with 0.65mm lead pitch and 5.3mm × 10.2mm body dimensions. This surface-mount package provides mechanical robustness and thermal performance suitable for reflow assembly in industrial control boards, while maintaining compatibility with standard pick-and-place equipment and automated optical inspection.
Is the MAX1067BCEE compatible with common microcontroller serial interfaces?
Yes, the MAX1067BCEE features a fully SPI/QSPI/MICROWIRE-compatible 3-wire serial interface (CS, SCLK, DIN/DOUT) that interoperates directly with ARM Cortex-M, Renesas RX, Microchip PIC, and Texas Instruments MSP430 microcontrollers. It supports both external clocking (up to 9MHz SCLK) and internal oscillator modes, and requires no level-shifting when interfacing with +2.7V to +5.5V logic families.
MAX1067BCEE 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:
- Obsolete
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- SPI
- 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:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1067BCEE FAQ
1.How can I place an order for MAX1067BCEE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1067BCEE 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 MAX1067BCEE reliable?
The price and inventory of MAX1067BCEE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1067BCEE is usually 5 days.
3.What payment methods are accepted for MAX1067BCEE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1067BCEE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1067BCEE?
MAX1067BCEE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1067BCEE 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 MAX1067BCEE?
For technical support, including MAX1067BCEE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1067BCEE requirements.
6.How does Aetrix verify that MAX1067BCEE is sourced from the original manufacturer or authorized distributors?
All MAX1067BCEE 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 MAX1067BCEE meets industry standards.
7.What is the process for return or replacement of MAX1067BCEE?
All MAX1067BCEE units undergo pre-shipment inspection (PSI). If there is an issue with MAX1067BCEE, 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 MAX1067BCEE part is unused and in its original packaging.
Return procedure for MAX1067BCEE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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