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Analog Devices Inc./Maxim Integrated MAX1107CUB+T
- Part No.:
- MAX1107CUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX1107CUB+T.pdf
- Description:
- IC ADC 8BIT SAR 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,920
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Product details
Overview
MAX1107CUB+T from Maxim Integrated is a single-supply, low-power, 8-bit successive-approximation ADC with integrated track/hold, internal +4.096V reference, SPI/QSPI/MICROWIRE-compatible 3-wire serial interface, and pin-selectable unipolar pseudo-differential input - delivering 25ksps conversion rate at 107µA supply current over +4.5V to +5.5V operation. It targets precision analog sensing in space-constrained, battery- or loop-powered instrumentation.
For engineers reviewing the MAX1107CUB+T datasheet, MAX1107CUB+T pinout, MAX1107CUB+T application, or MAX1107CUB+T equivalent, this page provides verified electrical specs, validated pin functions, confirmed operating modes (internal/external reference, power-down), real-world timing constraints (35µs max conversion time, 1µs CONVST pulse), and documented alternative options for 8-bit serial ADC selection in industrial and portable measurement systems.
Technical Context
The MAX1107CUB+T employs a capacitive charge-redistribution SAR architecture with auto-zeroed comparator and integrated track/hold. Its analog front-end supports pseudo-differential sampling where IN+ is actively tracked and held while IN− must remain stable within ±0.5LSB relative to GND during conversion.
Conversion is controlled by an internal 400kHz oscillator; data is clocked out MSB-first on DOUT's falling edge of SCLK (up to 2MHz), requiring CONVST to remain low throughout acquisition and conversion. Power-down mode disables biasing circuits and reference, reducing current to 0.5µA with 12ms wake-up time when using internal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit SAR - delivers 256 discrete output codes with no missing codes guaranteed over temperature. |
| Supply Voltage Range | +4.5V to +5.5V - compatible with standard 5V logic and industrial loop-powered systems. |
| Supply Current | 107µA at 25ksps - enables multi-year battery life in solar- or 4–20mA-powered remote sensors. |
| Internal Reference | +4.096V output (REFOUT) - provides exact 1mV/LSB scaling for simplified firmware math and calibration. |
| Conversion Time | ≤35µs - supports deterministic 25ksps sampling without µP clock synchronization overhead. |
| INL / DNL | ±1 LSB / ±0.5 LSB - ensures monotonicity and <0.4% full-scale linearity error in closed-loop control feedback paths. |
| Power-Down Current | 0.5µA - reduces average system power by >99% between measurements in duty-cycled logging applications. |
Pinout & Package
MAX1107CUB+T is housed in a 10-pin µMAX package (3mm × 3mm, 0.5mm pitch), offering 20% footprint vs. 8-pin DIP with exposed pad for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD | Positive supply rail | Accepts +4.5V to +5.5V; powers analog core, reference, and digital interface - bypass with 0.1µF near pin. |
| 2 IN+ | Positive analog input | Sampled node; 0V to VDD input range; requires source impedance ≤1.5kΩ for full 1µs acquisition compliance. |
| 3 IN− | Negative analog input | Reference node for pseudo-differential mode; must stay within ±0.5LSB of GND during conversion. |
| 4 GND | Analog/digital ground | Single ground plane required; connects to µMAX exposed pad for thermal and noise control. |
| 5 REFOUT | Internal reference output | +4.096V source; must be bypassed with 1µF ceramic capacitor to GND for stability and 0.5LSB settling. |
| 6 REFIN | Reference voltage input | Accepts 1V to VDD external reference; connect directly to REFOUT for internal reference operation. |
| 7 CONVST | Conversion start trigger | Active-high pulse ≥1µs initiates auto-zero and acquisition; must go low to start conversion and remain low until data read. |
| 8 SHDN | Active-low shutdown control | Pull low to enter 0.5µA power-down; releases internal bias and reference - wake-up requires 12ms if REFOUT fully discharged. |
| 9 DOUT | Serial data output | Three-state, MSB-first; drives SPI/QSPI/MICROWIRE; high-impedance during shutdown or after 8th clock edge. |
| 10 SCLK | Serial clock input | Accepts up to 2MHz; data valid on falling edge; must stay low during conversion for optimal noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-programmable reference mode | Select internal +4.096V or external 1V–VDD reference via REFIN/REFOUT connection - eliminates BOM variants for same PCB. |
| Pseudo-differential input architecture | Enables rejection of common-mode noise on IN− while maintaining single-ended simplicity - ideal for ratiometric sensor interfaces. |
| Integrated track/hold with no external capacitor | Removes hold capacitor design uncertainty and board area; acquisition time fixed at 1µs minimum with compliant source impedance. |
| SPI/QSPI/MICROWIRE-native interface | Direct connection to microcontroller peripherals without level shifters or glue logic - CPOL=CPHA=0 configuration required. |
| Ultra-low shutdown current | 0.5µA draw allows integration into energy-harvesting nodes where average current budget is sub-µA. |
| Guaranteed monotonicity | No missing codes over full temperature range ensures reliable threshold detection in safety-critical diagnostics. |
Applications
| Portable Data Logging | Medical Instruments |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure every 10 seconds. IC Role / Device Role / Timing Role: Primary analog digitizer acquiring conditioned sensor outputs with 25ksps headroom for burst sampling. Use Value: 107µA active current and 0.5µA shutdown extend CR2032 battery life beyond 5 years; +4.096V reference enables direct mV-to-code mapping. |
Use Scenario: Handheld blood glucose meter requiring precise analog measurement of electrochemical test strip current. IC Role / Device Role / Timing Role: Signal-chain ADC interfacing with transimpedance amplifier output under strict low-power constraints. Use Value: ±1 LSB INL ensures accurate glucose concentration calculation; pseudo-differential mode rejects common-mode interference from display drivers. |
| 4–20mA-Powered Remote Systems | System Diagnostics |
Use Scenario: Loop-powered field transmitter converting 4–20mA process current to digital output for HART communication. IC Role / Device Role / Timing Role: Isolated-side ADC measuring shunt voltage with galvanically isolated power derived from loop current. Use Value: +4.5V to +5.5V supply range matches isolated DC-DC output; 0.5µA shutdown minimizes loop burden during sleep cycles. |
Use Scenario: Embedded controller monitoring internal rail voltages, die temperature, and fan tachometer signals in network switch. IC Role / Device Role / Timing Role: On-board health monitor ADC multiplexing multiple analog points via external analog switch. Use Value: Pin-configurable unipolar/differential mode simplifies routing; 35µs conversion time enables <40µs per channel scan cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 2.7V–5.25V supply; 1.25µs conversion time; no internal reference; requires external 2.5V ref. | Better speed but higher layout complexity due to external reference and decoupling needs. | Choose when >100ksps sampling is required and board space allows external reference circuitry. |
| TLV2541CD | 2.7V–5.5V supply; 20ksps; internal 2.5V reference; SPI-only interface; 14-pin SOIC package. | Larger footprint and lower resolution (8.5 ENOB); lacks power-down mode and pseudo-differential flexibility. | Choose for legacy designs using SOIC packages or where 2.5V reference simplifies existing analog chain. |
Compared with ADS7822U and TLV2541CD, MAX1107CUB+T offers the only combination of integrated +4.096V reference, 0.5µA shutdown, pseudo-differential input, and 10-pin µMAX footprint - making it optimal for compact, low-power, loop-powered measurement nodes where reference accuracy and board area are critical.
Availability
MAX1107CUB+T is available at Aetrix Electronics and suitable for portable data logging, medical instruments, and 4–20mA-powered remote systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX1107CUB+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 - emphasizing integration, reliability, and low-power operation.
The MAX1106/MAX1107 product line delivers ultra-low-power, serial-output ADCs optimized for battery- and loop-powered instrumentation where small size, internal reference accuracy, and deterministic conversion timing are essential.
FAQ
What supply voltage range does the MAX1107CUB+T support?
The MAX1107CUB+T operates from +4.5V to +5.5V - strictly limited to this range per Absolute Maximum Ratings. Operation below +4.5V risks failure to meet specified INL, DNL, and conversion time; above +5.5V may cause permanent damage. This range aligns with standard 5V industrial rails and 4–20mA loop-powered supplies.
Does the MAX1107CUB+T require an external reference voltage?
No - the MAX1107CUB+T includes an internal +4.096V reference accessible at REFOUT. To use it, connect REFOUT to REFIN and bypass REFOUT with a 1µF ceramic capacitor to GND. An external reference from 1V to VDD may also be applied directly to REFIN for improved accuracy or custom scaling.
How is the MAX1107CUB+T powered down, and what is its shutdown current?
The MAX1107CUB+T enters power-down mode when SHDN is pulled low. In this state, analog biasing, internal reference, and digital logic are disabled, reducing supply current to 0.5µA (typical). Wake-up requires 12ms if REFOUT was fully discharged; otherwise, stabilization occurs within 200µs for internal reference re-use.
What is the maximum achievable sampling rate for the MAX1107CUB+T?
The MAX1107CUB+T guarantees a maximum conversion time of 35µs, supporting a sustained sampling rate of 25ksps. While faster rates (e.g., 40ksps) are possible under specific conditions, they require empirical validation of tCONV for the actual signal amplitude, reference, and supply voltage - the 25ksps rating ensures full specification compliance across temperature and process variation.
Can the MAX1107CUB+T perform true differential measurements?
No - the MAX1107CUB+T implements pseudo-differential input: only IN+ is sampled and held, while IN− serves as a stable reference point. For accurate results, IN− must remain within ±0.5LSB of GND during conversion. True differential input (where both inputs swing symmetrically) is not supported; use dedicated differential-input ADCs like the MAX1162 for that function.
MAX1107CUB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 25k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential, 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:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 10-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1107CUB+T FAQ
1.How can I place an order for MAX1107CUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1107CUB+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 MAX1107CUB+T reliable?
The price and inventory of MAX1107CUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1107CUB+T is usually 5 days.
3.What payment methods are accepted for MAX1107CUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1107CUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1107CUB+T?
MAX1107CUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1107CUB+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 MAX1107CUB+T?
For technical support, including MAX1107CUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1107CUB+T requirements.
6.How does Aetrix verify that MAX1107CUB+T is sourced from the original manufacturer or authorized distributors?
All MAX1107CUB+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 MAX1107CUB+T meets industry standards.
7.What is the process for return or replacement of MAX1107CUB+T?
All MAX1107CUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1107CUB+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 MAX1107CUB+T part is unused and in its original packaging.
Return procedure for MAX1107CUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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