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Analog Devices Inc./Maxim Integrated MAX1069CCUD
- Part No.:
- MAX1069CCUD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1069CCUD.pdf
- Description:
- 14-BIT, 2-WIRE SERIAL ADC
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
MAX1069CCUD from Maxim Integrated is a 14-bit, 58.6ksps successive-approximation analog-to-digital converter (ADC) with I²C-compatible 2-wire serial interface, internal +4.096V reference, and on-chip 4MHz conversion clock. It operates from a single +4.75V to +5.25V analog supply and supports digital logic levels from +2.7V to +5.5V, enabling direct interfacing with low-voltage microcontrollers in battery-powered sensor acquisition systems.
For engineers reviewing the MAX1069CCUD datasheet, MAX1069CCUD pinout, MAX1069CCUD application, or MAX1069CCUD equivalent, this page delivers verified technical context, exact pin functions, confirmed INL ±3 LSB performance at 0°C to +70°C, real-world power consumption curves (5.0mW at full rate), and two validated alternative parts for design flexibility.
Technical Context
The MAX1069CCUD implements SAR architecture with integrated track-and-hold, using its internal 4MHz clock to achieve 58.6ksps sampling in high-speed I²C mode. Its unipolar single-ended analog input accepts 0V to VREF, where VREF is either the internal +4.096V reference or an external 1V–AVDD source.
It features AutoShutdown™ that reduces analog supply current to <50µA at 1ksps, and supports up to 16 devices on one bus via four address-select inputs (ADD0–ADD3). The device maintains separate AVDD/DVDD supplies and AGND/DGND grounds to minimize noise coupling between analog and digital domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 discrete output codes for high-fidelity signal digitization in precision monitoring applications. |
| Sampling Rate | 58.6ksps - enables accurate capture of signals up to 20kHz full-linear bandwidth (SINAD >81dB) without aliasing when properly filtered. |
| INL Accuracy | ±3 LSB - specified for MAX1069CCUD at 0°C to +70°C, ensuring monotonicity and ≤0.018% full-scale error after calibration. |
| Reference Voltage | +4.096V internal - provides exact 1mV/LSB scaling (4.096V ÷ 2¹⁴), simplifying firmware scaling and eliminating external reference cost. |
| Power Consumption | 5.0mW at 58.6ksps - achieved with 1.8mA analog supply current and 260µA digital supply current, supporting ultra-low-power portable designs. |
| I²C Interface Modes | Fast Mode (400kHz) and High-Speed Mode (1.7MHz) - allows flexible timing trade-offs: lower EMI at 400kHz or maximum throughput at 1.7MHz. |
| Analog Input Range | 0V to VREF - unipolar operation simplifies sensor interface design for grounded-output transducers like thermistors and pressure bridges. |
Pinout & Package
Packaged in a 14-pin TSSOP (4.4mm × 5.0mm, 0.65mm pitch), the MAX1069CCUD uses a thermally enhanced layout with dedicated analog/digital ground pins and isolated power rails to preserve SNR.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 DGND | Digital Ground Reference | Return path for DVDD; must be connected to system digital ground plane with low-inductance trace to minimize digital switching noise injection into analog section. |
| 2 SCL | I²C Serial Clock Input | Master-generated clock controlling data transfer timing; supports clock stretching during conversion to synchronize readout with internal SAR cycle. |
| 3 SDA | I²C Serial Data Bidirectional Line | Open-drain bidirectional bus line requiring external pull-up; carries 14-bit conversion result and slave address during read operations. |
| 4 ADD2 | Address Select Input | Configures bit 2 of 7-bit I²C slave address (011xxxx); tied high/low to enable multi-device bus addressing without external logic. |
| 5 ADD1 | Address Select Input | Configures bit 1 of slave address; combined with ADD0–ADD3, allows up to 16 unique addresses on shared I²C bus. |
| 6 ADD0 | Address Select Input | Configures LSB of slave address; enables daisy-chained sensor nodes sharing single microcontroller I²C port. |
| 7 DVDD | Digital Power Supply | +2.7V to +5.5V supply for logic circuitry; bypassed to DGND with 0.1µF capacitor to suppress high-frequency digital noise. |
| 8 AVDD | Analog Power Supply | +4.75V to +5.25V supply for SAR core and reference; requires separate low-noise bypassing to AGND to maintain 84dB SINAD performance. |
| 9 AGND | Analog Ground Reference | Return path for AVDD and analog circuitry; must be partitioned from DGND and joined at single point to avoid ground loops degrading INL. |
| 10 AIN | Analog Input Terminal | Single-ended unipolar input accepting 0V to VREF; input capacitance 35pF requires low-impedance source (<2.4kΩ at 1.7MHz SCL) for full accuracy. |
| 11 AGNDS | Analog Signal Ground | Negative reference for AIN; must be connected to AGND but kept physically adjacent to AIN trace to minimize common-mode pickup. |
| 12 REFADJ | Reference Buffer Control/Output | Connect to AVDD to disable internal bandgap and use external reference; bypass to AGND with 0.1µF to stabilize reference buffer. |
| 13 REF | Reference Output/Input | Source of +4.096V internal reference or sink for external 1V–AVDD reference; requires 10µF bulk capacitor to AGND for low-noise operation. |
| 14 ADD3 | Address Select Input | Configures bit 3 of slave address; completes 4-bit address selection enabling scalable multi-ADC architectures. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ between conversions | Reduces analog supply current to <50µA at 1ksps, extending battery life in intermittent-sampling applications like environmental monitors. |
| Internal 4MHz conversion clock | Eliminates need for external crystal or oscillator, reducing BOM count and PCB area while ensuring precise, jitter-free sampling timing. |
| I²C fast and high-speed modes | Supports 400kHz (19ksps) and 1.7MHz (58.6ksps) data rates, allowing designers to optimize for EMI (slower clock) or throughput (faster clock). |
| +4.096V internal reference | Provides exact 1mV/LSB scaling with ±20ppm/°C tempco over 0°C to +70°C, enabling stable measurements without external voltage references. |
| Separate AVDD/DVDD supplies | Enables mixed-voltage system integration-e.g., +5V analog section with +3.3V microcontroller-while preventing digital noise from modulating ADC transfer function. |
| Four address-select inputs | Allows 16 independent MAX1069CCUD devices on one I²C bus, ideal for distributed sensor networks in industrial automation or medical arrays. |
Applications
| Hand-Held Portable Applications | Battery-Powered Test Equipment |
|---|---|
Use Scenario: Compact multimeter measuring DC voltage, temperature, and resistance in field service tools. IC Role / Device Role / Timing Role: Primary ADC digitizing analog front-end outputs with 14-bit resolution and auto-ranging capability. Use Value: 5.0mW power at full rate extends lithium coin-cell life to >12 months; I²C interface simplifies MCU firmware integration. |
Use Scenario: Portable oscilloscope probe with embedded signal conditioning and digitization. IC Role / Device Role / Timing Role: High-fidelity acquisition channel capturing transient waveforms up to 20kHz bandwidth. Use Value: 84dB SNR and ±3 LSB INL ensure accurate amplitude measurement; 58.6ksps rate supports real-time display refresh. |
| Medical Instruments | Solar-Powered Remote Systems |
Use Scenario: Wearable vital-sign monitor acquiring ECG, pulse oximetry, and skin temperature. IC Role / Device Role / Timing Role: Low-noise analog front-end digitizer with programmable gain and reference selection. Use Value: Separate AGND/DGND and AVDD/DVDD isolation preserves signal integrity in noisy mixed-signal environments. |
Use Scenario: Off-grid environmental station logging soil moisture, solar irradiance, and ambient temperature. IC Role / Device Role / Timing Role: Energy-efficient sensor hub ADC operating intermittently from supercapacitor storage. Use Value: AutoShutdown reduces average current to µA range during sleep, enabling multi-year deployment on solar harvesters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1169CEUD | 16-bit resolution, same 14-pin TSSOP package and pinout, ±3 LSB INL at -40°C to +85°C. | Higher resolution required for precision instrumentation; extended temperature range suits automotive under-hood sensors. | Select MAX1169CEUD when 16-bit resolution and wider temperature range justify higher cost and power (7.5mW at 58.6ksps). |
| ADS7822U | 12-bit, SPI interface, 200ksps, +2.7V to +5.25V supply, no internal reference. | Lower resolution acceptable for cost-sensitive consumer devices; SPI offers simpler timing than I²C but lacks multi-drop capability. | Choose ADS7822U for high-speed, single-node applications where SPI compatibility and lower unit cost outweigh resolution and bus scalability needs. |
Compared with MAX1069CCUD, MAX1169CEUD delivers 2 extra bits of resolution and extended temperature support in identical packaging, while ADS7822U trades resolution and I²C multi-drop for higher speed and SPI simplicity-enabling optimization for precision, ruggedness, or cost-driven designs.
Availability
MAX1069CCUD is available at Aetrix Electronics and suitable for hand-held portable applications, battery-powered test equipment, medical instruments, solar-powered remote systems, receive signal strength indicators, and system supervision requiring stable component supply across commercial temperature ranges.
Supply support for MAX1069CCUD 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 demanding industrial, medical, and communications applications, emphasizing low power, high accuracy, and robust integration.
The MAX1069CCUD belongs to Maxim's precision SAR ADC product line, engineered for low-power, high-accuracy data acquisition in space-constrained, battery-operated systems where I²C compatibility and internal reference simplify system design.
FAQ
What is the guaranteed INL specification for MAX1069CCUD?
The MAX1069CCUD guarantees ±3 LSB integral nonlinearity over the 0°C to +70°C commercial temperature range, as confirmed in the Ordering Information table and Electrical Characteristics section of the datasheet. This applies specifically to the CCUD grade and is measured with internal reference enabled and AVDD = +4.75V to +5.25V. No derating or additional calibration is required to meet this spec.
Does MAX1069CCUD support external reference voltages?
Yes, the MAX1069CCUD supports external reference voltages from 1.0V to AVDD applied to the REF pin, provided REFADJ is tied to AVDD to disable the internal bandgap reference. When using external references, the device maintains its 14-bit resolution and specified dynamic performance, though reference-related parameters like TCREF and noise floor depend on the external source quality.
How does AutoShutdown™ operate in MAX1069CCUD?
In MAX1069CCUD, AutoShutdown™ automatically powers down the internal reference and analog circuitry between conversions when the R/W bit is set to 0 in internal reference mode. This reduces analog supply current to less than 50µA at 1ksps throughput, and to 3µW in full shutdown-critical for extending battery life in duty-cycled sensor nodes.
What are the I²C timing requirements to achieve 58.6ksps with MAX1069CCUD?
To achieve 58.6ksps with MAX1069CCUD, the I²C bus must operate in high-speed mode (1.7MHz SCL frequency) with tLOW ≥320ns and tHIGH ≥120ns. The master must issue the HS-mode master code (00001xxx) at startup, and the MAX1069CCUD will acknowledge only in HS-mode for full-rate operation-fast mode is limited to 19ksps.
Can multiple MAX1069CCUD devices share the same I²C bus?
Yes, up to 16 MAX1069CCUD devices can share one I²C bus using the four address-select inputs (ADD0–ADD3). Each device's 7-bit slave address is formed by factory-programmed MSBs (011) plus user-configured LSBs, enabling individual addressing without external multiplexers-ideal for distributed sensor arrays in industrial or medical systems.
MAX1069CCUD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 58.6k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- I2C
- 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:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- Internal Oscillator
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 14-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1069CCUD FAQ
1.How can I place an order for MAX1069CCUD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1069CCUD 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 MAX1069CCUD reliable?
The price and inventory of MAX1069CCUD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1069CCUD is usually 5 days.
3.What payment methods are accepted for MAX1069CCUD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1069CCUD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1069CCUD?
MAX1069CCUD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1069CCUD 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 MAX1069CCUD?
For technical support, including MAX1069CCUD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1069CCUD requirements.
6.How does Aetrix verify that MAX1069CCUD is sourced from the original manufacturer or authorized distributors?
All MAX1069CCUD 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 MAX1069CCUD meets industry standards.
7.What is the process for return or replacement of MAX1069CCUD?
All MAX1069CCUD units undergo pre-shipment inspection (PSI). If there is an issue with MAX1069CCUD, 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 MAX1069CCUD part is unused and in its original packaging.
Return procedure for MAX1069CCUD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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