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Texas Instruments ADC101C021CIMK/NOPB
- Part No.:
- ADC101C021CIMK/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
ADC101C021CIMK/NOPB.pdf
- Description:
- IC ADC 10BIT SAR TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,077
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Product details
Overview
ADC101C021CIMK/NOPB from Texas Instruments is a 10-bit I²C-compatible successive-approximation ADC operating from +2.7V to +5.5V, featuring an open-drain ALERT output, ±0.5 LSB max INL/DNL, 1 µs typical conversion time, and support for I²C standard/fast/high-speed modes (up to 3.4 MHz). It serves as a system monitoring sensor interface in portable medical instruments.
For engineers reviewing the ADC101C021CIMK/NOPB datasheet, ADC101C021CIMK/NOPB pinout, ADC101C021CIMK/NOPB application, or ADC101C021CIMK/NOPB equivalent, key selection considerations include its alert-triggered out-of-range detection, automatic conversion mode with min/max register tracking, low-power operation (0.26 mW at 3V), SOT-6 package footprint, and guaranteed −40°C to +105°C industrial temperature range.
Technical Context
The ADC101C021CIMK/NOPB implements a charge-redistribution DAC architecture with internal track-and-hold, enabling accurate sampling of analog inputs up to 11 MHz full-power bandwidth. Its I²C interface supports three speed modes-standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz)-with 8 kV HBM ESD protection on SDA/SCL pins.
It operates in Normal or Automatic Conversion Mode: in Automatic Mode, it continuously monitors VIN against programmable upper/lower alert limits and asserts the ALERT pin on violation, while storing min/max conversion results in dedicated registers. Power consumption drops below 1 µW in Power Down Mode (PD1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits with no missing codes - ensures monotonic transfer function and deterministic code mapping across full input range. |
| Conversion Time | 1 µs typical - enables up to 188.9 kSPS throughput, suitable for real-time system monitoring and peak detection. |
| INL / DNL | ±0.5 LSB maximum - guarantees linearity error under 0.05% FS, critical for precision voltage thresholding and calibration. |
| Supply Range | +2.7 V to +5.5 V - supports direct interfacing with 3.3 V and 5 V logic systems without level-shifting. |
| Alert Function | Open-drain digital output with programmable upper/lower limits - provides hardware interrupt for out-of-range events without MCU polling. |
| Power Consumption | 0.26 mW at 3 V (22 kSPS) - enables battery-powered operation for >1 year in intermittent-sampling applications. |
| ESD Protection | ±8 kV HBM on SDA/SCL - eliminates need for external TVS diodes in multi-board I²C bus deployments. |
Pinout & Package
SOT-6 package (2.9 mm × 1.6 mm × 1.0 mm height), lead-free and RoHS-compliant. Pin 1 marked by beveled corner; device oriented with marking side up and pin 1 at top-left.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VA) | Supply & reference voltage | Single supply serving as both power rail and unbuffered ADC reference; must be decoupled to GND with low-ESR capacitor. |
| 2 (GND) | Analog/digital ground | Common return for all internal circuitry; requires low-impedance connection to system ground plane. |
| 3 (VIN) | Analog input | Single-ended input ranging from 0 V to VA; input impedance modeled as 3 pF capacitance + 500 Ω series resistance. |
| 4 (ALERT) | Digital output (open-drain) | Active-low or active-high configurable interrupt; requires external pull-up to VA for proper logic level assertion. |
| 5 (SCL) | I²C clock input | Open-drain clock line supporting 100/400/3400 kHz modes; 8 kV HBM ESD rating allows inter-board routing without protection. |
| 6 (SDA) | I²C bidirectional data | Open-drain serial data line sharing same ESD robustness and pull-up requirement as SCL. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic Conversion Mode | Continuous background monitoring with min/max result registers - eliminates firmware overhead for watchdog-style voltage supervision. |
| Programmable Alert Thresholds | User-defined upper/lower limits stored in dedicated I²C-accessible registers - enables adaptive trip-point configuration without hardware change. |
| Three I²C Speed Modes | Standard (100 kHz), Fast (400 kHz), High-Speed (3.4 MHz) - accommodates legacy and high-throughput host controllers in same design. |
| Ultra-Low Power Down | <1 µW quiescent power in PD1 mode - extends battery life in always-on sensing nodes with infrequent wake-up intervals. |
| Industrial Temperature Range | −40°C to +105°C operation - qualified for use in automotive cabin modules, industrial PLC I/O, and medical diagnostic equipment. |
Applications
| Battery-Powered Portable Instruments | Medical Vital Sign Monitors |
|---|---|
Use Scenario: Continuous measurement of battery voltage, sensor supply rails, or transducer outputs in handheld glucose meters or pulse oximeters. IC Role / Device Role / Timing Role: ADC101C021CIMK/NOPB acts as the primary analog front-end digitizer, converting analog sensor signals into I²C-accessible digital values with alert-driven fault reporting. Use Value: Low 0.26 mW power at 3 V and automatic conversion mode reduce MCU polling load and extend single-cell Li-ion battery life beyond 18 months. |
Use Scenario: Real-time monitoring of ECG amplifier bias voltages or temperature sensor outputs in Class II medical devices. IC Role / Device Role / Timing Role: ADC101C021CIMK/NOPB functions as a safety-critical supervisory ADC, triggering hardware interrupts when vital parameter thresholds are exceeded. Use Value: ±0.5 LSB INL/DNL and −40°C to +105°C qualification ensure clinical-grade accuracy and reliability across environmental stress conditions. |
| Industrial System Health Monitoring | Test & Measurement Equipment |
Use Scenario: Voltage margining and rail integrity checks in programmable logic controller (PLC) backplanes or motor drive control boards. IC Role / Device Role / Timing Role: ADC101C021CIMK/NOPB serves as embedded telemetry sensor, feeding real-time analog health metrics to host microcontroller via shared I²C bus. Use Value: 8 kV HBM ESD protection on SDA/SCL pins permits direct integration into noisy industrial bus environments without additional protection components. |
Use Scenario: Digitizing reference voltages, calibration offsets, or auxiliary sensor readings in benchtop multimeters and signal generators. IC Role / Device Role / Timing Role: ADC101C021CIMK/NOPB provides auxiliary measurement capability with deterministic 1 µs conversion latency and no missing codes. Use Value: 10-bit resolution with guaranteed monotonicity ensures traceable calibration paths and repeatable test results across production units. |
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 |
|---|---|---|---|
| ADC101C027 | Replaces ALERT pin with ADDR pin for 3-level address selection; identical conversion performance and power specs. | Used where multiple ADCs share one I²C bus and require distinct slave addresses instead of alert signaling. | Select ADC101C027 when address flexibility outweighs need for hardware interrupt; same SOT-6 footprint enables PCB reuse. |
| ADC121C021 | 12-bit resolution, same SOT-6 package and I²C interface; higher INL (±1 LSB max), slower max throughput (125 kSPS). | Preferred for applications requiring finer voltage quantization (e.g., precision current shunt monitoring) at cost of reduced speed. | Choose ADC121C021 only if 12-bit ENOB is mandatory; verify timing budget accommodates lower max sample rate. |
Compared with ADC101C027 and ADC121C021, the ADC101C021CIMK/NOPB uniquely balances alert-driven fault response, 10-bit precision, and 188.9 kSPS throughput in the smallest SOT-6 form factor-making it optimal for space-constrained, event-triggered monitoring systems.
Availability
ADC101C021CIMK/NOPB is available at Aetrix Electronics and suitable for battery-powered portable instruments, medical vital sign monitors, and industrial system health monitoring requiring stable component supply across extended product lifecycles.
Supply support for ADC101C021CIMK/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, embedded processing, and connectivity technologies, with over 90 years of innovation in precision data acquisition and industrial-grade IC design.
The ADC101C021CIMK/NOPB belongs to TI's precision 10-bit I²C ADC family, engineered for low-power, high-reliability system monitoring in portable, medical, and industrial edge-sensing applications.
FAQ
What is the maximum I²C clock frequency supported by ADC101C021CIMK/NOPB?
The ADC101C021CIMK/NOPB supports I²C high-speed mode up to 3.4 MHz when bus capacitance is ≤100 pF, or 1.7 MHz at 400 pF. Standard (100 kHz) and fast (400 kHz) modes are also fully compliant. This enables high-throughput data reads without compromising noise immunity in compact layouts.
Does ADC101C021CIMK/NOPB require an external reference voltage?
No. ADC101C021CIMK/NOPB uses its VA supply pin as the sole reference voltage source - eliminating need for external precision references and reducing BOM count. The analog input range is strictly 0 V to VA, and VA must be clean and well-decoupled.
How does the ALERT pin function in ADC101C021CIMK/NOPB?
The ALERT pin is an open-drain output that asserts when VIN exceeds user-programmed upper or lower limit registers. It can be configured active-high or active-low via I²C command, and requires an external pull-up resistor to VA. This provides immediate hardware notification without MCU polling.
What is the guaranteed operating temperature range for ADC101C021CIMK/NOPB?
The ADC101C021CIMK/NOPB is specified for continuous operation from −40°C to +105°C ambient temperature. This industrial-grade rating is verified per JEDEC JESD22-A108 and qualifies the device for under-hood automotive, factory-floor PLC, and portable medical equipment use cases.
Can ADC101C021CIMK/NOPB operate from a 3.3 V supply?
Yes. ADC101C021CIMK/NOPB operates across +2.7 V to +5.5 V, including standard 3.3 V rails. At 3.3 V, typical power consumption is 0.26 mW at 22 kSPS, and full 10-bit performance (±0.5 LSB INL/DNL, no missing codes) is maintained across the entire industrial temperature range.
ADC101C021CIMK/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- SOT-23-THIN
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC101C021CIMK/NOPB FAQ
1.How can I place an order for ADC101C021CIMK/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101C021CIMK/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 ADC101C021CIMK/NOPB reliable?
The price and inventory of ADC101C021CIMK/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101C021CIMK/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101C021CIMK/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101C021CIMK/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101C021CIMK/NOPB?
ADC101C021CIMK/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101C021CIMK/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 ADC101C021CIMK/NOPB?
For technical support, including ADC101C021CIMK/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101C021CIMK/NOPB requirements.
6.How does Aetrix verify that ADC101C021CIMK/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101C021CIMK/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 ADC101C021CIMK/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101C021CIMK/NOPB?
All ADC101C021CIMK/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101C021CIMK/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 ADC101C021CIMK/NOPB part is unused and in its original packaging.
Return procedure for ADC101C021CIMK/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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