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Texas Instruments ADC101C021CIMKX/NOPB
- Part No.:
- ADC101C021CIMKX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
ADC101C021CIMKX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR TSOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADC101C021CIMKX/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, and 1 µs typical conversion time. It functions as a system-monitoring sensor interface in battery-powered portable instruments, medical devices, and test equipment.
For engineers reviewing the ADC101C021CIMKX/NOPB datasheet, ADC101C021CIMKX/NOPB pinout, ADC101C021CIMKX/NOPB application, or ADC101C021CIMKX/NOPB equivalent, key selection considerations include its alert-triggered interrupt capability, 9-pin-selectable I²C addresses (VSSOP-8), industrial temperature range (−40°C to +105°C), and ultra-low power consumption (0.26 mW at 3V/22 kSPS).
Technical Context
The ADC101C021CIMKX/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 standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes, with 8 kV HBM ESD protection on SDA/SCL pins.
It features programmable alert thresholds, automatic conversion mode for continuous out-of-range monitoring, and three power states: active (0.14–0.99 mA), automatic conversion (0.41–1.2 mA), and power-down (≤0.2 µA). The device uses VA as both supply and reference, eliminating external reference components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits with no missing codes - guarantees monotonicity and deterministic code mapping across full input range (0 V to VA). |
| Conversion Time | 1 µs typical - enables maximum throughput of 188.9 kSPS, suitable for real-time voltage monitoring in dynamic systems. |
| INL / DNL | ±0.5 LSB max - ensures accurate end-point linearity and step uniformity critical for precision threshold detection and calibration. |
| Power Consumption | 0.26 mW at 3V/22 kSPS - supports extended battery life in portable instrumentation without sacrificing sampling rate. |
| I²C Address Options | 9 pin-selectable addresses (ADR0/ADR1 tri-level inputs) - allows up to nine ADC101C021CIMKX/NOPB units on same bus without address conflict. |
| Operating Temperature | −40°C to +105°C - validated for industrial and medical environments where thermal stability is essential. |
| ESD Protection | ±8 kV HBM on SDA/SCL - enables robust multi-board I²C interconnect without external TVS diodes. |
Pinout & Package
ADC101C021CIMKX/NOPB is packaged in an 8-pin VSSOP (Very Small Outline Package) with 0.65 mm pitch, measuring 3.0 mm × 3.0 mm × 1.0 mm - optimized for space-constrained PCB layouts in handheld and wearable electronics.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VA) | Supply & Reference Voltage | Single-supply rail serving as analog reference; must be low-noise and decoupled to GND for optimal ENOB performance. |
| 2 (GND) | Analog/Digital Ground | Common return path for all internal circuitry; requires solid ground plane connection to minimize noise coupling into VIN. |
| 3 (VIN) | Analog Input | Unbuffered input accepting 0 V to VA range; source impedance ≤100 Ω recommended to meet 11 MHz full-power bandwidth. |
| 4 (ALERT) | Open-Drain Alert Output | Active-low interrupt signal triggered when VIN exceeds programmable upper/lower limits; requires external pull-up to VA. |
| 5 (SCL) | I²C Clock Input | Open-drain clock line supporting 100 kHz–3.4 MHz; 8 kV HBM rating permits direct routing across board boundaries. |
| 6 (SDA) | I²C Data I/O | Bidirectional open-drain data line; shares 8 kV HBM protection and requires external pull-up to VA. |
| 7 (ADR0) | Address Selection Input | Tri-level input setting A0/A1 bits of 7-bit slave address (0 V / VA/2 / VA); determines one of three base address groups. |
| 8 (ADR1) | Address Selection Input | Tri-level input setting A2/A3 bits; combined with ADR0, enables nine unique I²C addresses (0x50–0x58). |
Key Features
| Feature | Design Value |
|---|---|
| Alert Function with Programmable Thresholds | Hardware interrupt generation on VIN violation eliminates polling overhead and reduces host MCU wake cycles in low-power systems. |
| Automatic Conversion Mode | Self-timed sampling at intervals set by configuration register (32× conversion time) enables autonomous "watchdog" monitoring without I²C traffic. |
| Tri-Level Address Inputs (ADR0/ADR1) | Three logic states per pin (0 V, VA/2, VA) expand I²C addressing to nine options - simplifies multi-sensor designs on shared buses. |
| Extended Supply Range (+2.7V to +5.5V) | Single-supply operation across Li-ion, USB, and legacy 5V rails - avoids level-shifting or dual-supply design complexity. |
| Ultra-Low Power-Down Current | <0.2 µA in PD1 mode - extends shelf life and enables rapid wake-on-alert response in always-on sensing nodes. |
Applications
| Portable Battery-Powered Instrumentation | Industrial System Health Monitoring |
|---|---|
Use Scenario: Measuring battery voltage, temperature, and sensor outputs in handheld multimeters or environmental loggers. IC Role / Device Role / Timing Role: ADC101C021CIMKX/NOPB serves as the primary analog front-end digitizer, converting analog sensor signals to I²C-accessible digital values with alert-driven wake-up. Use Value: 0.26 mW power at 22 kSPS and −40°C to +105°C rating enable >1-year battery life and field-deployable reliability. |
Use Scenario: Real-time monitoring of power supply rails, fan tachometers, and thermal sensors in PLCs and motor drives. IC Role / Device Role / Timing Role: ADC101C021CIMKX/NOPB acts as a distributed voltage supervisor, triggering interrupts on overvoltage/undervoltage conditions. Use Value: Hardware alert function reduces host CPU load by 100% versus polled monitoring, improving system responsiveness. |
| Medical Vital Sign Acquisition | Automated Test Equipment (ATE) Front-End |
Use Scenario: Digitizing ECG lead voltages, pulse oximeter photodiode outputs, or temperature sensor signals in point-of-care devices. IC Role / Device Role / Timing Role: ADC101C021CIMKX/NOPB provides isolated, low-noise analog-to-digital conversion with programmable alert thresholds for physiological limit violations. Use Value: ±0.5 LSB INL/DNL and 61.2 dB SNR ensure clinical-grade accuracy without post-conversion calibration. |
Use Scenario: Sampling reference voltages, calibration standards, and DUT feedback signals in benchtop test fixtures. IC Role / Device Role / Timing Role: ADC101C021CIMKX/NOPB functions as a precision measurement node, delivering 188.9 kSPS throughput for transient capture. Use Value: 1 µs conversion time and 11 MHz full-power bandwidth support accurate characterization of fast-rising test signals. |
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 |
|---|---|---|---|
| ADC101C021IDCKR | SOT-6 package (6-pin), no ADR0/ADR1 pins, single fixed I²C address (0x50), ALERT output only. | Limited to single-device I²C nodes; lacks address flexibility and VSSOP thermal performance. | Select when board space is critical and only one ADC is needed per bus segment. |
| ADC121C021CIMKX | 12-bit resolution, same VSSOP-8 pinout and I²C interface, higher power (0.41 mW at 3V/22 kSPS), ±1 LSB INL max. | Provides 4× finer quantization for high-accuracy calibration or low-drift references but increases data handling overhead. | Select when ENOB > 11.5 bits is required and system firmware can accommodate larger result registers. |
Compared with ADC101C021IDCKR, ADC101C021CIMKX/NOPB offers scalable multi-node deployment via 9-address support and superior thermal dissipation (θJA = 200°C/W vs. 250°C/W); versus ADC121C021CIMKX, it trades resolution for lower power and simpler data processing while maintaining identical footprint and alert functionality.
Availability
ADC101C021CIMKX/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial system monitoring, and medical device applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature performance.
Supply support for ADC101C021CIMKX/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 decades of expertise in precision data converters and industrial-grade IC design.
ADC101C021CIMKX/NOPB belongs to TI's ADC101C family of ultra-low-power, I²C-compatible SAR ADCs engineered for cost-sensitive, space-constrained, and battery-operated monitoring systems demanding reliable alert-driven operation.
FAQ
What is the I²C address configuration method for ADC101C021CIMKX/NOPB?
The ADC101C021CIMKX/NOPB uses two tri-level address pins (ADR0 and ADR1) that accept 0 V, VA/2, or VA to set bits A0–A3 of its 7-bit slave address. This yields nine unique addresses (0x50–0x58), enabling multiple ADC101C021CIMKX/NOPB units on a single I²C bus without software address remapping or hardware jumpers.
Does ADC101C021CIMKX/NOPB require an external voltage reference?
No. ADC101C021CIMKX/NOPB uses its VA supply pin as the internal reference voltage, eliminating the need for external reference components. The full-scale range is 0 V to VA, and LSB = VA / 1024 - meaning resolution scales directly with supply voltage, simplifying designs using variable or unregulated rails.
How does the ALERT pin function in ADC101C021CIMKX/NOPB?
The ALERT pin on ADC101C021CIMKX/NOPB is an open-drain output that asserts low when the latest conversion result exceeds user-programmed upper or lower limit registers. It remains asserted until the host reads the Alert Status register or clears the condition via I²C - enabling hardware-triggered interrupts without continuous polling of ADC101C021CIMKX/NOPB.
What is the maximum sampling rate achievable with ADC101C021CIMKX/NOPB?
The ADC101C021CIMKX/NOPB achieves a maximum throughput rate of 188.9 kSPS when operated in high-speed I²C mode (3.4 MHz clock) with quiet interface timing. At lower I²C speeds (400 kHz), the practical rate drops to 22.2 kSPS - both values reflect complete conversion + read cycle times, not just core ADC latency.
Is ADC101C021CIMKX/NOPB pin-compatible with other members of the ADC1xxC021 family?
Yes. ADC101C021CIMKX/NOPB in VSSOP-8 is fully pin- and function-compatible with ADC121C021CIMKX (12-bit) and ADC081C021CIMKX (8-bit) per TI's official documentation. All share identical pin assignments, I²C protocol, register map, and alert functionality - allowing resolution upgrades or downgrades without PCB redesign.
ADC101C021CIMKX/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:
- -
ADC101C021CIMKX/NOPB FAQ
1.How can I place an order for ADC101C021CIMKX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101C021CIMKX/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 ADC101C021CIMKX/NOPB reliable?
The price and inventory of ADC101C021CIMKX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101C021CIMKX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101C021CIMKX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101C021CIMKX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101C021CIMKX/NOPB?
ADC101C021CIMKX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101C021CIMKX/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 ADC101C021CIMKX/NOPB?
For technical support, including ADC101C021CIMKX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101C021CIMKX/NOPB requirements.
6.How does Aetrix verify that ADC101C021CIMKX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101C021CIMKX/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 ADC101C021CIMKX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101C021CIMKX/NOPB?
All ADC101C021CIMKX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101C021CIMKX/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 ADC101C021CIMKX/NOPB part is unused and in its original packaging.
Return procedure for ADC101C021CIMKX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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