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Texas Instruments ADC101C027CIMK/NOPB
- Part No.:
- ADC101C027CIMK/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
ADC101C027CIMK/NOPB.pdf
- Description:
- IC ADC 10BIT SAR TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:11,407
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Product details
Overview
ADC101C027CIMK/NOPB from Texas Instruments is a 10-bit I²C-compatible analog-to-digital converter in SOT-6 package, operating from +2.7V to +5.5V supply with 1 µs conversion time, ±0.5 LSB max INL/DNL, and integrated address selection pin (ADDR) for multi-device bus configuration. It delivers 188.9 kSPS throughput in high-speed I²C mode (3.4 MHz) and supports system monitoring in portable medical instruments.
For engineers reviewing the ADC101C027CIMK/NOPB datasheet, ADC101C027CIMK/NOPB pinout, ADC101C027CIMK/NOPB application, or ADC101C027CIMK/NOPB equivalent, key selection criteria include its single-supply operation, pin-selectable I²C address (three options), alert-free SOT-6 footprint, automatic conversion mode for watchdog functionality, and guaranteed −40°C to +105°C industrial temperature range.
Technical Context
The ADC101C027CIMK/NOPB uses a successive-approximation register (SAR) architecture with internal track-and-hold, supporting input frequencies up to 11 MHz at 5.0 V supply. Its conversion core references the VA supply directly, eliminating need for external reference.
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. The ADDR pin sets one of three I²C slave addresses - no ALERT or ADR0/ADR1 pins are present, distinguishing it from ADC101C021 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits with no missing codes - ensures monotonic output across full input range (0 V to VA) |
| Conversion Time | 1 µs typical - enables maximum sampling rate of 188.9 kSPS in high-speed I²C mode |
| INL / DNL | ±0.5 LSB max - guarantees linearity suitable for precision system monitoring and peak detection |
| Supply Range | +2.7 V to +5.5 V - supports direct integration with 3.3 V and 5 V logic/system rails |
| Power Consumption | 0.26 mW at 3 V / 22 kSPS - ultra-low power ideal for battery-operated portable instruments |
| I²C Address Options | Three pin-selectable addresses via ADDR pin - allows up to three ADC101C027 devices on same bus without address conflict |
| Operating Temperature | −40°C to +105°C - qualified for industrial and medical equipment deployed in harsh environments |
Pinout & Package
SOT-6 package (2.2 mm × 1.35 mm × 0.95 mm height), lead-free and RoHS-compliant, optimized for space-constrained PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VA | Supply & Reference Input | Provides both power and unbuffered reference voltage; must be decoupled to GND with low-ESR capacitor |
| 2 - GND | Analog/Digital Ground | Common return path 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; driven by source impedance ≤100 Ω for optimal AC performance |
| 4 - ADDR | Address Selection Input | Tri-level digital input setting I²C slave address (0x50, 0x51, or 0x52); no pull-up/down required |
| 5 - SCL | I²C Clock Input | Open-drain input requiring external pull-up to VA; supports 100 kHz / 400 kHz / 3.4 MHz clock rates |
| 6 - SDA | I²C Data I/O | Open-drain bidirectional data line; shares same pull-up as SCL; 8 kV HBM ESD rated for robust bus routing |
Key Features
| Feature | Design Value |
|---|---|
| Successive Approximation Architecture | Enables deterministic 1 µs conversion latency and eliminates pipeline delay issues in real-time control loops |
| Automatic Conversion Mode | Internally triggers conversions at programmable intervals (32× conversion time), freeing host MCU from polling overhead |
| Three-Option I²C Addressing | Eliminates need for external address jumpers or EEPROM configuration in multi-sensor systems |
| Extended Supply Range (+2.7 V to +5.5 V) | Permits direct interface with diverse microcontrollers and sensor signal chains without level-shifting |
| Industrial Temperature Rating | Guarantees full specification compliance from −40°C to +105°C - critical for medical and test equipment reliability |
Applications
| Portable Medical Sensors | Industrial System Monitoring |
|---|---|
Use Scenario: Continuous vital sign acquisition (e.g., pulse oximetry front-end) in handheld patient monitors. IC Role / Device Role / Timing Role: Single-channel ADC digitizing conditioned analog sensor outputs with I²C streaming to ARM Cortex-M host. Use Value: 10-bit resolution and ±0.5 LSB linearity ensure accurate SpO₂ calculation; low 0.26 mW power extends battery life beyond 24 hours. |
Use Scenario: Real-time voltage/current rail supervision in PLC I/O modules. IC Role / Device Role / Timing Role: Dedicated rail monitor feeding threshold-violation alerts to safety controller via I²C. Use Value: Automatic conversion mode continuously checks limits without CPU intervention; −40°C to +105°C rating ensures field reliability. |
| Handheld Test Equipment | Battery-Powered Environmental Loggers |
Use Scenario: Compact multimeter design measuring DC voltage, temperature, and resistance. IC Role / Device Role / Timing Role: Primary ADC for analog front-end multiplexed inputs, interfaced to display MCU over shared I²C bus. Use Value: Three ADDR options allow co-location with other TI sensors (e.g., TMP102) on same bus; SOT-6 footprint minimizes board area. |
Use Scenario: Long-duration environmental data collection (temperature/humidity) in remote field deployments. IC Role / Device Role / Timing Role: Low-power ADC sampling thermistor network every 10 seconds during deep-sleep MCU cycles. Use Value: Power-down current <0.2 µA preserves battery energy; 188.9 kSPS headroom supports future firmware upgrades with higher sampling rates. |
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 | Includes ALERT output pin and no ADDR pin; offered in same SOT-6 package | Required where out-of-range interrupt signaling to host MCU is needed instead of address flexibility | Select ADC101C021 when system-level fault response depends on hardware interrupt rather than periodic register polling |
| ADS7822U | 8-pin SOIC, SPI interface, 12-bit resolution, 200 kSPS, 2.7–5.5 V supply | Used in designs requiring higher resolution or SPI-native microcontrollers; lacks I²C compatibility and auto-conversion mode | Choose ADS7822U only if SPI interface is already dominant in the BOM and 12-bit ENOB >10-bit is mandatory for signal fidelity |
Compared with ADC101C027CIMK/NOPB, ADC101C021IDCKR trades address configurability for hardware alert signaling, while ADS7822U offers higher resolution but abandons I²C bus simplicity and autonomous monitoring capability - making ADC101C027CIMK/NOPB optimal for compact, I²C-centric, low-power system monitors.
Availability
ADC101C027CIMK/NOPB is available at Aetrix Electronics and suitable for portable medical instruments, industrial system monitoring, and battery-powered environmental loggers requiring stable component supply across extended production lifecycles.
Supply support for ADC101C027CIMK/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 delivering analog, embedded processing, and connectivity solutions with focus on reliability, efficiency, and design enablement.
ADC101C027CIMK/NOPB belongs to TI's precision analog ADC portfolio designed specifically for space- and power-constrained I²C-based monitoring applications in industrial, medical, and portable equipment.
FAQ
What is the I²C address configuration method for ADC101C027CIMK/NOPB?
The ADC101C027CIMK/NOPB uses a single tri-level ADDR pin to select one of three I²C slave addresses: 0x50 (ADDR = GND), 0x51 (ADDR = floating), or 0x52 (ADDR = VA). This eliminates external address resistors and simplifies multi-device bus topology. No external pull-up or pull-down is required, and the configuration is latched at power-on reset. ADC101C027CIMK/NOPB does not support dynamic address changes during operation.
Does ADC101C027CIMK/NOPB support automatic conversion mode, and how is it enabled?
Yes, ADC101C027CIMK/NOPB supports automatic conversion mode, which is enabled by writing '1' to bit D7 (Auto-Convert Enable) in the Configuration Register via I²C. Once enabled, the device autonomously initiates conversions at intervals determined by bits D6–D5 (32× conversion time), storing min/max results in dedicated registers. This mode reduces host MCU polling load and enables true watchdog-style monitoring without software intervention.
What is the maximum input frequency supported by ADC101C027CIMK/NOPB, and what conditions apply?
ADC101C027CIMK/NOPB supports analog input frequencies up to 11 MHz at VA = +5.0 V, verified under full-power bandwidth (−3 dB) test conditions. At VA = +3.0 V, FPBW drops to 8 MHz. Performance assumes source impedance ≤100 Ω and proper decoupling of VA; exceeding these conditions degrades SNR and THD. The 11 MHz spec reflects small-signal AC capability - for DC or low-frequency measurements, input settling is governed by track/hold acquisition time (~0.4 µs).
How does power consumption vary between continuous and automatic conversion modes for ADC101C027CIMK/NOPB?
In continuous operation at 22 kSPS and 3.0 V supply, ADC101C027CIMK/NOPB draws 0.14 mA (0.26 mW). In automatic conversion mode at same conditions, supply current rises to 0.59 mA (1.35 mW) due to periodic wake-up and register updates. During idle periods between conversions, current drops to sub-µA levels. Power-down mode (PD1) reduces consumption to <0.2 µA - critical for duty-cycled environmental loggers using ADC101C027CIMK/NOPB.
Is ADC101C027CIMK/NOPB pin-compatible with other members of the ADC1xxC02x family?
Yes, ADC101C027CIMK/NOPB is fully pin-compatible with ADC101C021 (SOT-6 variant), ADC121C027, and ADC081C027 in the same SOT-6 package. All share identical pinout: VA, GND, VIN, ADDR (or ALERT), SCL, SDA. Functionally, ADC101C027CIMK/NOPB replaces ALERT with ADDR - so swapping requires firmware update to disable alert handling and enable address configuration, but no PCB change is needed.
ADC101C027CIMK/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:
- Selectable Address
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- SOT-23-THIN
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC101C027CIMK/NOPB FAQ
1.How can I place an order for ADC101C027CIMK/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101C027CIMK/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 ADC101C027CIMK/NOPB reliable?
The price and inventory of ADC101C027CIMK/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101C027CIMK/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101C027CIMK/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101C027CIMK/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101C027CIMK/NOPB?
ADC101C027CIMK/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101C027CIMK/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 ADC101C027CIMK/NOPB?
For technical support, including ADC101C027CIMK/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101C027CIMK/NOPB requirements.
6.How does Aetrix verify that ADC101C027CIMK/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101C027CIMK/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 ADC101C027CIMK/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101C027CIMK/NOPB?
All ADC101C027CIMK/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101C027CIMK/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 ADC101C027CIMK/NOPB part is unused and in its original packaging.
Return procedure for ADC101C027CIMK/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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