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Analog Devices Inc./Maxim Integrated MAX11663AUT+T
- Part No.:
- MAX11663AUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
MAX11663AUT+T.pdf
- Description:
- IC ADC 10BIT SAR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,689
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Product details
Overview
MAX11663AUT+T from Maxim Integrated is a 10-bit, single-channel, successive-approximation analog-to-digital converter (ADC) optimized for low-power portable systems. It delivers 500ksps throughput with 61.5dB SNR, operates from 2.2V–3.6V supply, consumes 1.76mA full-power current, and features SPI/QSPI/MICROWIRE-compatible 3-wire serial interface - ideal for battery-powered data loggers and medical sensors.
For engineers reviewing the MAX11663AUT+T datasheet, MAX11663AUT+T pinout, MAX11663AUT+T application, or MAX11663AUT+T equivalent, key selection considerations include its 10-bit resolution, SOT23-6 package, 1.3µA power-down current, internal reference operation, and compatibility with 1.5V–3.6V digital I/O voltage levels.
Technical Context
The MAX11663AUT+T implements a high-dynamic-range sample-and-hold circuit with 52ns acquisition time and 4ns aperture delay, enabling accurate sampling of signals up to 40MHz full-power bandwidth. Its conversion architecture avoids pipeline latency, delivering deterministic 1.56µs conversion time per sample.
It uses a single-ended analog input referenced to AGND, accepts 0V to VDD input range, and derives internal reference from VDD - eliminating external reference components. Digital interface pins (CS, SCLK, DOUT) support variable I/O voltage (1.5V–3.6V), allowing direct connection to mixed-voltage microcontrollers without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - defines quantization step size of ~9.8mV at 3.3V full-scale, suitable for medium-precision sensor digitization. |
| Throughput Rate | 500 ksps - supports real-time sampling of audio-band and control-loop signals without undersampling. |
| SNR | 61.5 dB typical - enables ~10.2 ENOB, sufficient for temperature, pressure, and biomedical signal acquisition. |
| Supply Current | 1.76 mA at full power - enables >100-hour operation on a 200mAh coin cell in continuous 500ksps mode. |
| Power-Down Current | 1.3 µA - reduces standby power to <4.3nW, critical for wake-on-event sensor nodes. |
| Input Voltage Range | 0V to VDD - simplifies front-end design by eliminating biasing circuits for unipolar sensors. |
| Serial Interface | SPI-/QSPI-/MICROWIRE-compatible 3-wire - interoperates with standard MCU peripherals without glue logic. |
Pinout & Package
The MAX11663AUT+T is housed in a 6-pin SOT23 package (2.8mm × 2.9mm × 1.3mm), optimized for space-constrained PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AIN) | Analog Input | Single-ended input referenced to AGND; accepts 0V to VDD range; 20pF track capacitance affects anti-alias filter design. |
| 2 (GND) | Analog Ground | Separate AGND pin minimizes digital switching noise coupling into analog path; must be connected to clean ground plane. |
| 3 (CS) | Chip Select | Active-low enable for serial interface; falling edge initiates conversion; requires ≥10ns pulse width. |
| 4 (DOUT) | Serial Data Output | 3-state CMOS output; data valid 15ns after SCLK falling edge; compatible with 1.5V–3.6V logic families. |
| 5 (SCLK) | Serial Clock | Input clock for data transfer; supports 8MHz max frequency; 40–60% duty cycle required for reliable timing. |
| 6 (VDD) | Positive Supply | Primary power rail (2.2V–3.6V); also serves as internal reference source; bypass capacitor mandatory near pin. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Deterministic 1.56µs conversion time enables precise time-critical sampling in closed-loop control. |
| Low-noise 61.5dB SNR | Supports accurate digitization of µV-level sensor outputs when paired with appropriate PGA gain staging. |
| 1.3µA power-down current | Enables ultra-low-duty-cycle operation in energy-harvesting systems where wake-up latency is acceptable. |
| 1.5V–3.6V digital I/O voltage | Eliminates level-shifter ICs when interfacing with modern low-voltage MCUs (e.g., ARM Cortex-M0+). |
| Internal reference from VDD | Reduces BOM count and board area by removing external reference IC and associated decoupling components. |
Applications
| Portable Data Logging | Medical Instrumentation |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and barometric pressure every 10 seconds. IC Role / Device Role / Timing Role: Primary ADC digitizing conditioned analog outputs from analog front-end sensors; synchronized to MCU timer-triggered conversions. Use Value: 1.3µA power-down current extends battery life to >5 years on a CR2032; 500ksps headroom allows oversampling for noise reduction. |
Use Scenario: Handheld ECG monitor acquiring lead-II differential signal via instrumentation amplifier. IC Role / Device Role / Timing Role: Single-ended ADC sampling amplified biopotential signal at 250ksps (Nyquist for 125kHz bandwidth). Use Value: 61.5dB SNR ensures ≥10-bit effective resolution for diagnostic-grade waveform fidelity; SOT23-6 footprint fits compact wearable form factor. |
| Battery-Operated Systems | Industrial Sensor Interface |
Use Scenario: Wireless vibration sensor node using MEMS accelerometer, transmitting FFT features over BLE. IC Role / Device Role / Timing Role: ADC capturing time-domain acceleration samples prior to on-device spectral analysis. Use Value: 2.2V minimum supply enables operation down to end-of-life battery voltage; SPI interface simplifies integration with BLE SoC's hardware SPI peripheral. |
Use Scenario: DIN-rail mounted condition monitoring module measuring motor winding resistance and temperature. IC Role / Device Role / Timing Role: Precision ADC digitizing 4–20mA loop-derived voltage and RTD bridge outputs. Use Value: 0V–VDD input range accommodates 0–5V industrial sensor outputs without scaling resistors; -40°C to +125°C rating ensures reliability in harsh enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, 200ksps max, 3.3V-only supply, no variable I/O voltage support | Limited to lower-precision, lower-speed applications; lacks 1.5V I/O compatibility | Select when cost sensitivity outweighs resolution/speed requirements and system uses only 3.3V logic. |
| AD7476ARTZ-REEL7 | 12-bit resolution, 1MSPS, 2.35–5.25V supply, higher 3.2mA active current, no internal reference | Requires external reference and higher supply voltage; better for high-accuracy, mains-powered designs | Choose when ENOB >11 bits is required and power budget allows >2× current draw; verify layout for 12-bit accuracy. |
Compared with ADS7822U and AD7476ARTZ-REEL7, the MAX11663AUT+T uniquely balances 10-bit precision, 500ksps speed, sub-2mA active current, and 1.5V–3.6V I/O flexibility - making it optimal for space- and energy-constrained embedded systems where mid-tier resolution suffices.
Availability
MAX11663AUT+T is available at Aetrix Electronics and suitable for portable data logging, medical instrumentation, and battery-operated systems requiring stable component supply across extended product lifecycles.
Supply support for MAX11663AUT+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 demanding industrial, automotive, and medical applications.
The MAX11663AUT+T belongs to the MAX11661–MAX11666 family of low-power SAR ADCs engineered for battery-constrained, space-sensitive data acquisition systems operating across extended temperature ranges.
FAQ
What is the maximum sampling rate supported by the MAX11663AUT+T?
The MAX11663AUT+T supports a maximum throughput rate of 500ksps, achieved with an 8MHz SCLK and deterministic 1.56µs conversion time. This rate is guaranteed across the full -40°C to +125°C operating range and enables real-time capture of signals up to 250kHz without aliasing when used with appropriate anti-alias filtering. The MAX11663AUT+T does not require pipeline delay compensation.
Does the MAX11663AUT+T require an external reference voltage?
No, the MAX11663AUT+T uses an internal reference derived from the VDD supply, eliminating the need for external reference components. Its analog input range is 0V to VDD, simplifying front-end design for unipolar sensors. This differs from dual-channel variants (e.g., MAX11664AUB+) which require an external REF pin connection.
What package type is used for the MAX11663AUT+T?
The MAX11663AUT+T is packaged in a 6-pin SOT23 case (2.8mm × 2.9mm × 1.3mm), as confirmed in the Maxim ordering information table. This compact surface-mount package supports high-density PCB layouts and is reflow-compatible per JEDEC J-STD-020 standards. No exposed pad (EP) is present - unlike the 10-pin FMAX variants.
Can the MAX11663AUT+T interface directly with a 1.8V microcontroller?
Yes, the MAX11663AUT+T supports digital I/O voltages from 1.5V to 3.6V on CS, SCLK, and DOUT pins, enabling direct connection to 1.8V MCUs without level-shifting circuitry. The device's VIH threshold is 0.75 × VOVDD and VIL is 0.25 × VOVDD, ensuring robust logic-level compatibility across this range.
What is the power consumption of the MAX11663AUT+T in shutdown mode?
In full power-down mode, the MAX1163AUT+T draws only 1.3µA typical (up to 10µA maximum), as specified in its electrical characteristics table. This ultra-low leakage current is maintained across the full -40°C to +125°C temperature range and is critical for extending battery life in intermittently active sensor nodes.
MAX11663AUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- 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
- Voltage - Supply, Analog:
- 2.2V ~ 3.6V
- Voltage - Supply, Digital:
- 2.2V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- SOT-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11663AUT+T FAQ
1.How can I place an order for MAX11663AUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11663AUT+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 MAX11663AUT+T reliable?
The price and inventory of MAX11663AUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11663AUT+T is usually 5 days.
3.What payment methods are accepted for MAX11663AUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11663AUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11663AUT+T?
MAX11663AUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11663AUT+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 MAX11663AUT+T?
For technical support, including MAX11663AUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11663AUT+T requirements.
6.How does Aetrix verify that MAX11663AUT+T is sourced from the original manufacturer or authorized distributors?
All MAX11663AUT+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 MAX11663AUT+T meets industry standards.
7.What is the process for return or replacement of MAX11663AUT+T?
All MAX11663AUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11663AUT+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 MAX11663AUT+T part is unused and in its original packaging.
Return procedure for MAX11663AUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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