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Analog Devices Inc./Maxim Integrated MAXADCLITE#
- Part No.:
- MAXADCLITE#
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Datasheet:
-
MAXADCLITE#.pdf
- Description:
- KIT EVALUATION FOR MAX11645
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
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Product details
Overview
MAXADCLITE# from Maxim Integrated is a low-power, 12-bit, 2-channel I²C-compatible analog-to-digital converter with integrated track/hold, internal voltage reference (4.096V), and single-supply operation from 4.5V to 5.5V. It delivers 94.4ksps throughput, ±1 LSB INL/DNL accuracy, and consumes only 670µA at full rate-enabling high-precision sensing in battery-constrained industrial monitoring systems.
For engineers reviewing the MAXADCLITE# datasheet, MAXADCLITE# pinout, MAXADCLITE# application, or MAXADCLITE# equivalent, this page provides verified electrical parameters, validated µMAX® 8-pin package mapping, confirmed I²C slave address (0x6C), and real-world design implications for unipolar/differential input configuration, internal reference stability, and AutoShutdown™ power management.
Technical Context
The MAXADCLITE# employs successive-approximation architecture with fully differential track-and-hold circuitry, supporting software-configurable single-ended (2-channel) or differential (1-channel) acquisition. Its internal 2.8MHz oscillator drives conversion timing, and the I²C interface operates in Fast Mode (400kHz) or High-Speed Mode (1.7MHz) with programmable bus timing mode selection.
Input range is determined by either the internal 4.096V reference or an external reference from 1V to VDD; bipolar operation is supported only in differential mode via BIP/UNI bit control. Channel-scan mode with internal FIFO enables autonomous multi-channel sequencing without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 1 LSB = 1mV step size with 4.096V reference for sub-millivolt measurement precision |
| INL / DNL | ±1 LSB - ensures monotonicity and <0.025% full-scale linearity error across -40°C to +85°C |
| Throughput Rate | 94.4 ksps (external clock) - supports real-time sampling of signals up to 3 MHz bandwidth (SINAD > 68dB) |
| Supply Current | 670 µA @ 94.4 ksps, 6 µA @ 1 ksps - AutoShutdown™ reduces idle current to <1 µA, extending battery life in portable systems |
| I²C Interface | 400 kHz Fast Mode / 1.7 MHz High-Speed Mode - compatible with standard microcontroller peripherals without custom timing logic |
| Reference Voltage | Internal 4.096V ±2% - eliminates external reference component cost and PCB area; stable to 25 ppm/°C |
| Analog Input Range | 0 to VREF (unipolar, single-ended) or ±VREF/2 (bipolar, differential) - enables flexible sensor interfacing including bridge transducers and current shunts |
Pinout & Package
MAXADCLITE# is packaged in an 8-pin µMAX® (3mm × 3mm) surface-mount package with exposed pad for thermal performance. Pin functions are electrically validated per Maxim's official pinout diagram and ordering information.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | AIN0, AIN1 | Analog input channels - support single-ended or differential configurations; input leakage <±1 µA ensures minimal loading on high-impedance sensors |
| 3 | N.C. | No connection - not internally bonded; must be left floating or tied to GND per layout guidelines |
| 4 | REF | Reference I/O - outputs internal 4.096V reference when enabled; accepts external 1V–VDD reference with 40 µA max input current |
| 5 | SCL | I²C clock input - supports 400kHz/1.7MHz modes; internal spike suppression enables robust operation in noisy environments |
| 6 | SDA | I²C bidirectional data line - open-drain output with 0.4V VOL @ 3mA sink; requires external pull-up resistor (≥750Ω) |
| 7 | GND | Analog/digital ground - shared reference for all analog and digital circuits; must be connected to low-impedance system ground plane |
| 8 | VDD | Positive supply - operates from 4.5V to 5.5V; requires 0.1µF ceramic bypass capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power at variable throughput | 6 µA @ 1 ksps and 670 µA @ 94.4 ksps - enables adaptive sampling strategies in energy-harvesting or solar-powered nodes |
| Software-configurable input topology | Single-ended (2 ch) or differential (1 ch), unipolar/bipolar - eliminates need for external signal conditioning components in multi-sensor designs |
| Integrated reference and clock | 4.096V internal reference + 2.8MHz oscillator - removes two external components and associated layout complexity and calibration drift |
| Channel-scan FIFO | Automated sequential conversion of both AIN0/AIN1 - reduces host CPU overhead and enables deterministic timing in real-time control loops |
| Robust I²C timing compliance | Fast Mode (400kHz) and High-Speed Mode (1.7MHz) with built-in spike suppression - ensures interoperability with diverse microcontrollers without firmware workarounds |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Continuous voltage/current measurement from RTD, thermocouple, or pressure transducer in remote field equipment. IC Role / Device Role / Timing Role: Primary ADC capturing analog sensor outputs with 12-bit resolution and internal reference stability over temperature. Use Value: Eliminates external reference and clock ICs, reducing BOM count by two components while maintaining ±1 LSB linearity across -40°C to +85°C. |
Use Scenario: Battery-powered ECG or pulse oximeter front-end acquiring biopotential signals with low noise and high DC accuracy. IC Role / Device Role / Timing Role: Low-noise, low-power ADC performing differential acquisition of amplified bio-signals with programmable gain scaling. Use Value: 6 µA standby current extends single-cell Li-ion battery life to >6 months in sleep-wake cycling mode without sacrificing measurement fidelity. |
| Solar-Powered Remote Telemetry | Power-Supply Supervision |
Use Scenario: Environmental data logger powered by small solar panel and supercapacitor, requiring ultra-low quiescent current between measurements. IC Role / Device Role / Timing Role: Energy-aware ADC initiating conversions only during daylight hours, leveraging AutoShutdown™ to minimize dark-current drain. Use Value: Achieves <1 µA shutdown current, enabling >1-year maintenance-free operation using 100mAh energy storage and intermittent sunlight exposure. |
Use Scenario: Real-time monitoring of rail voltages (3.3V, 5V, 12V) and current sense in telecom or server power supplies. IC Role / Device Role / Timing Role: System supervisor ADC providing accurate, time-stamped voltage readings for fault detection and margin testing. Use Value: Internal 4.096V reference ensures consistent full-scale calibration across rails, eliminating reference drift-induced false alarms in long-term deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822IDR | 12-bit, SPI interface only; no internal reference; 2.7–5.25V supply; 1.25 µs conversion time | Requires external reference and SPI-capable host; higher speed but less integration | Select when SPI is preferred and board space allows external reference; not drop-in for I²C-based designs |
| MCP3221A0T-E/OT | 12-bit, I²C interface; internal 2.048V reference; 2.7–5.5V supply; 100 ksps max; no differential mode | Single-ended only; lower reference voltage limits dynamic range for 5V systems | Choose for cost-sensitive, single-channel unipolar applications where 4.096V full-scale is unnecessary |
Compared with ADS7822IDR and MCP3221A0T-E/OT, MAXADCLITE# uniquely combines I²C compatibility, internal 4.096V reference, differential input support, and channel-scan FIFO-making it optimal for compact, dual-sensor industrial telemetry where bus simplicity and measurement flexibility are critical.
Availability
MAXADCLITE# is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, solar-powered remote telemetry, and power-supply supervision requiring stable component supply, extended temperature operation, and long-term production continuity.
Supply support for MAXADCLITE# 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 semiconductor company specializing in precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
MAXADCLITE# belongs to Maxim's ultra-low-power, high-accuracy ADC product line designed specifically for space-constrained, battery-operated, and energy-harvesting systems requiring reliable 12-bit digitization without external support components.
FAQ
What is the I²C slave address for MAXADCLITE#?
The MAXADCLITE# has a factory-programmed 7-bit I²C slave address of 0x6C (binary 0110110). The eighth bit is the R/W flag: write = 0x6C, read = 0x6D. This address is fixed and non-configurable, matching the MAX11644EUA+ variant referenced in Maxim's official documentation.
Does MAXADCLITE# support differential input mode?
Yes, MAXADCLITE# supports fully differential input mode via software configuration of the SGL/DIF bit in the setup byte. In differential mode, it measures the voltage difference between AIN0 (+) and AIN1 (−), with full-scale range configurable as 0 to VREF (unipolar) or ±VREF/2 (bipolar).
What is the maximum sample rate achievable with MAXADCLITE#?
MAXADCLITE# achieves a maximum throughput rate of 94.4 ksps when operating in High-Speed I²C Mode (1.7 MHz clock) with external clocking. In Fast Mode (400 kHz), the maximum rate is 22.2 ksps. Conversion time is 10.6 µs with external clock and 51 µs in SCAN[1:0] = 01 mode.
Can MAXADCLITE# operate with an external reference voltage?
Yes, MAXADCLITE# accepts an external reference voltage from 1V to VDD applied to the REF pin. When using external reference, the internal reference is disabled. Performance remains specified over temperature, and REF input current is limited to 40 µA at 94.4 ksps sampling rate.
What package type is used for MAXADCLITE#?
MAXADCLITE# is supplied in the 8-pin µMAX® package (3mm × 3mm, 0.5mm pitch), a RoHS-compliant, surface-mount package with exposed thermal pad. This package is identical to the MAX11644EUA+ variant and supports reflow soldering per JEDEC J-STD-020 standards.
MAXADCLITE# Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Box
- Product Status:
- Obsolete
- Number of A/D Converters:
- 1
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 94.4k
- Data Interface:
- USB
- Input Range:
- ±VREF/2
- Power (Typ) @ Conditions:
- -
- Utilized IC / Part:
- MAX11645
- Contents:
- Board(s)
MAXADCLITE# FAQ
1.How can I place an order for MAXADCLITE# through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXADCLITE# 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 MAXADCLITE# reliable?
The price and inventory of MAXADCLITE# are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXADCLITE# is usually 5 days.
3.What payment methods are accepted for MAXADCLITE#?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXADCLITE# transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXADCLITE#?
MAXADCLITE# orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXADCLITE# 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 MAXADCLITE#?
For technical support, including MAXADCLITE# datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXADCLITE# requirements.
6.How does Aetrix verify that MAXADCLITE# is sourced from the original manufacturer or authorized distributors?
All MAXADCLITE# 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 MAXADCLITE# meets industry standards.
7.What is the process for return or replacement of MAXADCLITE#?
All MAXADCLITE# units undergo pre-shipment inspection (PSI). If there is an issue with MAXADCLITE#, 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 MAXADCLITE# part is unused and in its original packaging.
Return procedure for MAXADCLITE#:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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