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Texas Instruments ADC101C021CIMMX/NOPB
- Part No.:
- ADC101C021CIMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC101C021CIMMX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,297
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Product details
Overview
ADC101C021CIMMX/NOPB from Texas Instruments is a 10-bit successive-approximation ADC with I²C interface, alert output, and single-supply operation from +2.7V to +5.5V. It delivers 188.9 kSPS maximum throughput, ±0.5 LSB INL/DNL, and 61.6 dB SNR at 5V, serving as a system-monitoring sensor front-end in portable medical instruments and battery-powered test equipment.
For engineers reviewing the ADC101C021CIMMX/NOPB datasheet, ADC101C021CIMMX/NOPB pinout, ADC101C021CIMMX/NOPB application, or ADC101C021CIMMX/NOPB equivalent, key selection criteria include its alert-driven out-of-range detection, SOT-6 package footprint, 1 µs conversion time, and compatibility with standard/fast/high-speed I²C modes up to 3.4 MHz.
Technical Context
The ADC101C021CIMMX/NOPB implements a charge-redistribution DAC architecture with internal track-and-hold, supporting input frequencies up to 11 MHz at full scale. Its I²C interface operates across three speed grades-100 kHz (standard), 400 kHz (fast), and 3.4 MHz (high-speed)-with open-drain SCL/SDA pins rated for ±8 kV HBM ESD protection.
It features automatic conversion mode with programmable upper/lower alert limits, enabling continuous voltage monitoring without host intervention. The alert output is open-drain and configurable as active-high or active-low, while the analog input range is strictly 0 V to VA with no external reference required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits with guaranteed no missing codes - ensures monotonic transfer function for precision measurement. |
| Conversion Time | 1 µs typical - enables high-throughput sampling at up to 188.9 kSPS in high-speed I²C mode. |
| INL / DNL | ±0.5 LSB max - supports accurate DC and low-frequency signal digitization within 0.05% linearity error. |
| Power Consumption | 0.26 mW at 3V / 22 kSPS - optimized for ultra-low-power battery operation with automatic power-down <1 µW. |
| I²C Interface Speed | Up to 3.4 MHz - allows rapid register access and real-time alert response in dense multi-device bus systems. |
| Analog Input Range | 0 V to VA - eliminates need for external reference or level-shifting circuitry when VA serves as supply and reference. |
| Operating Temperature | −40°C to +105°C - qualified for industrial and medical environments without derating. |
Pinout & Package
SOT-6 package (2.2 mm × 1.35 mm × 1.0 mm) with gull-wing leads; RoHS-compliant, lead-free, and halogen-free per TI specification.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VA | Supply and unbuffered reference voltage - must be decoupled to GND with low-ESR capacitor for stable conversion. |
| 2 | GND | Analog/digital ground reference - shared return path for all on-chip circuitry; requires low-impedance PCB connection. |
| 3 | VIN | Analog input - accepts 0 V to VA signals; source impedance should be <100 Ω for optimal dynamic performance. |
| 4 | ALERT | Open-drain interrupt output - asserts when VIN exceeds programmable high/low limits; requires external pull-up to VA. |
| 5 | SCL | I²C clock input - open-drain, 8 kV HBM ESD-rated; must be pulled up externally; controls data timing on bus. |
| 6 | SDA | I²C bidirectional data line - open-drain, 8 kV HBM ESD-rated; shares bus with other I²C devices via arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Alert-driven out-of-range detection | Configurable high/low limit registers trigger open-drain ALERT output - enables autonomous system-level fault monitoring without CPU polling. |
| Three-speed I²C compatibility | Supports 100 kHz / 400 kHz / 3.4 MHz modes - ensures interoperability with legacy and high-performance microcontrollers without protocol translation. |
| Single-supply operation | VA serves as both power rail and reference - eliminates external voltage reference IC and associated layout complexity. |
| Ultra-low-power automatic mode | Consumes <1 µW in power-down state and 1.35 mW at 5V in automatic conversion - extends battery life in always-on monitoring applications. |
| Industrial temperature range | Specified from −40°C to +105°C - guarantees performance in medical handhelds, industrial sensors, and portable test gear. |
Applications
| Portable Medical Sensors | Battery-Powered Test Equipment |
|---|---|
Use Scenario: Real-time monitoring of patient vital signs (e.g., ECG lead voltage, temperature sensor output) in handheld diagnostic devices. IC Role / Device Role / Timing Role: ADC front-end converting analog biosignals to digital for MCU processing; alert pin triggers immediate low-battery or out-of-range warnings. Use Value: 10-bit resolution and ±0.5 LSB linearity ensure clinical-grade accuracy; 0.26 mW power at 3V enables >100-hour runtime on coin-cell batteries. |
Use Scenario: Voltage/current measurement in handheld multimeters and portable oscilloscope probes. IC Role / Device Role / Timing Role: Precision analog-to-digital conversion with fast 1 µs conversion time and I²C readout - supports responsive UI updates and auto-ranging logic. Use Value: 188.9 kSPS throughput and 61.6 dB SNR enable clean digitization of AC waveforms up to ~10 kHz; SOT-6 footprint saves PCB area in compact enclosures. |
| Industrial System Monitoring | IoT Edge Node Sensing |
Use Scenario: Continuous monitoring of power supply rails, motor temperature, or environmental sensors in factory automation controllers. IC Role / Device Role / Timing Role: Autonomous watchdog ADC using automatic conversion mode - scans inputs every 32× conversion period and flags deviations via ALERT pin. Use Value: Eliminates constant MCU polling; −40°C to +105°C rating ensures reliability in uncontrolled cabinet environments; 8 kV HBM on SDA/SCL withstands noisy industrial bus transients. |
Use Scenario: Low-power environmental sensing (voltage, light, pressure) in battery-operated wireless sensor nodes. IC Role / Device Role / Timing Role: Energy-efficient ADC interfacing with ultra-low-power MCU over I²C - enters <1 µW power-down between scheduled measurements. Use Value: Sub-µW idle power and 3.4 MHz I²C allow rapid burst reads before deep-sleep - extends node lifetime to years on primary lithium cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC101C027IDCKR | Replaces ALERT pin with ADDR pin for 3-level address selection; same SOT-6 package and core ADC specs. | Preferred where multi-drop I²C bus requires flexible slave addressing instead of interrupt-driven monitoring. | Select ADC101C027IDCKR when address configurability outweighs alert functionality; not pin-compatible due to swapped pin roles. |
| ADC121C021CIMMX | 12-bit resolution, same SOT-6 package and I²C interface; higher 0.99 mA max supply current at 5V. | Suitable for applications requiring finer quantization (e.g., precision thermistor or strain gauge measurement). | Choose ADC121C021CIMMX only if 12-bit ENOB (>11.5 bits) is mandatory; trade-off is +2.5× power consumption and reduced battery life. |
Compared with ADC101C021CIMMX/NOPB, ADC101C027IDCKR trades alert capability for address flexibility in identical packaging, while ADC121C021CIMMX delivers higher resolution at significantly increased power cost - making ADC101C021CIMMX/NOPB optimal for alert-centric, ultra-low-power 10-bit monitoring.
Availability
ADC101C021CIMMX/NOPB is available at Aetrix Electronics and suitable for portable medical instruments, battery-powered test equipment, and industrial system monitoring requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for ADC101C021CIMMX/NOPB 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and low-power interface solutions.
The ADC101C021CIMMX/NOPB belongs to TI's single-supply, I²C-compatible ADC family designed specifically for space-constrained, energy-sensitive applications including portable diagnostics, industrial sensors, and IoT edge nodes.
FAQ
What is the absolute maximum supply voltage for ADC101C021CIMMX/NOPB?
The absolute maximum supply voltage (VA) for ADC101C021CIMMX/NOPB is +6.5 V, but the device is specified for reliable operation only between +2.7 V and +5.5 V. Exceeding +5.5 V may cause permanent damage or parametric degradation, and operation above +6.5 V violates Absolute Maximum Ratings per SNAS446D Rev F.
Does ADC101C021CIMMX/NOPB require an external reference voltage?
No, ADC101C021CIMMX/NOPB does not require an external reference. It uses VA - the same supply powering the chip - as its analog reference. This simplifies design by eliminating external reference ICs, decoupling networks, and routing constraints, provided VA is clean and well-decoupled.
Can ADC101C021CIMMX/NOPB operate in automatic conversion mode without MCU intervention?
Yes, ADC101C021CIMMX/NOPB supports fully autonomous automatic conversion mode. Once configured via I²C, it continuously samples VIN at intervals set by the Configuration Register (bits D7–D5), compares results against programmable alert limits, and asserts the ALERT pin - all without host CPU involvement.
What is the purpose of the ALERT pin on ADC101C021CIMMX/NOPB?
The ALERT pin on ADC101C021CIMMX/NOPB is an open-drain interrupt output that activates when the converted VIN value exceeds user-defined upper or lower threshold registers. It enables hardware-triggered fault response - such as MCU wake-up or LED indication - without continuous polling of the ADC result register.
Is ADC101C021CIMMX/NOPB pin-compatible with ADC101C027?
No, ADC101C021CIMMX/NOPB is not pin-compatible with ADC101C027. While both use the SOT-6 package, ADC101C021CIMMX/NOPB has ALERT on pin 4 and no address pin, whereas ADC101C027 places ADDR on pin 4 and omits ALERT - making direct substitution electrically invalid without PCB revision.
ADC101C021CIMMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 188.9k
- 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:
- Supply
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC101C021CIMMX/NOPB FAQ
1.How can I place an order for ADC101C021CIMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101C021CIMMX/NOPB 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 ADC101C021CIMMX/NOPB reliable?
The price and inventory of ADC101C021CIMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101C021CIMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101C021CIMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101C021CIMMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101C021CIMMX/NOPB?
ADC101C021CIMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101C021CIMMX/NOPB 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 ADC101C021CIMMX/NOPB?
For technical support, including ADC101C021CIMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101C021CIMMX/NOPB requirements.
6.How does Aetrix verify that ADC101C021CIMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101C021CIMMX/NOPB 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 ADC101C021CIMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101C021CIMMX/NOPB?
All ADC101C021CIMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101C021CIMMX/NOPB, 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 ADC101C021CIMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC101C021CIMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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