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Texas Instruments ADC101S021CIMFX/NOPB
- Part No.:
- ADC101S021CIMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADC101S021CIMFX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,382
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Product details
Overview
ADC101S021CIMFX/NOPB from Texas Instruments is a single-channel, 10-bit successive-approximation ADC with SPI/QSPI/MICROWIRE/DSP-compatible serial interface, operating at 50–200 ksps sample rates over 2.7V–5.25V supply, featuring ±0.14 LSB INL (typ), 61.6 dB SNR (typ), and 2.34 mW power consumption at 3.6V - used for precision analog monitoring in portable instrumentation.
For engineers reviewing the ADC101S021CIMFX/NOPB datasheet, ADC101S021CIMFX/NOPB pinout, ADC101S021CIMFX/NOPB application, or ADC101S021CIMFX/NOPB equivalent, key selection considerations include guaranteed performance across full 50–200 ksps range, straight-binary output format, track-and-hold architecture with 350 ns acquisition time, and dual 6-lead WSON/SOT-23 package compatibility.
Technical Context
The ADC101S021CIMFX/NOPB implements a charge-redistribution SAR architecture with internal track-and-hold, enabling precise sampling of analog inputs from 0 V to VA. Its conversion timing is fully synchronized to the SCLK falling edge, with aperture jitter of 30 ps and throughput time defined by 20 SCLK cycles per sample.
It supports three-wire serial communication (CS, SCLK, SDATA) with straight-binary 10-bit output preceded by three leading zeros and followed by two trailing zeros. Power management is controlled via CS: pulling CS high before the 10th SCLK falling edge enters shutdown mode, reducing current to 500 nA at +5.25V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - ensures monotonic transfer function and deterministic code mapping for control-loop feedback. |
| Sample Rate Range | 50–200 ksps fully specified - eliminates need for derating or interpolation when scaling sampling frequency in embedded systems. |
| INL / DNL | +0.14 / −0.13 LSB (max), +0.16 / −0.09 LSB (typ) - enables <±0.014% full-scale linearity error in sensor signal conditioning. |
| SNR | 61.6 dB (typ) at 100 kHz input - supports >9.9 ENOB for accurate digitization of low-noise analog sensor outputs. |
| Power Consumption | 2.34 mW at 3.6V / 200 ksps - allows battery-powered operation for >1 year in 10 ksps duty-cycled data loggers. |
| Aperture Jitter | 30 ps (typ) - limits sampling uncertainty to <0.05% of 100 kHz period, preserving dynamic performance in AC measurements. |
| Supply Voltage | 2.7V to 5.25V - permits direct interfacing with 3.3V or 5V microcontrollers without level-shifting. |
Pinout & Package
The ADC101S021CIMFX/NOPB is available in 6-lead WSON (NGF) and SOT-23 (DBV) packages, both RoHS-compliant and rated for −40°C to +85°C industrial operation. The WSON variant features an exposed thermal pad recommended for grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VA | Analog supply input | Reference and power source for ADC core; requires local 1 µF + 0.1 µF bypassing within 1 cm to maintain SNR. |
| 2 - GND | Analog/digital ground return | Common reference for analog input, digital interface, and internal logic; must be low-impedance connection to system ground plane. |
| 3 - VIN | Analog input | Single-ended input ranging 0 V to VA; driven by ≤500 Ω source impedance to meet 350 ns acquisition spec. |
| 4 - SCLK | Serial clock input | Edge-triggered master clock (1–4 MHz); falling edges clock out 10-bit data on SDATA, controlling conversion timing. |
| 5 - SDATA | Digital data output | Tri-state serial output delivering 3 leading zeros + 10 data bits + 2 trailing zeros; high-impedance when CS is high. |
| 6 - CS | Chip select input | Active-low initiation signal; falling edge starts conversion and enables SDATA; high state forces shutdown mode (≤500 nA). |
Key Features
| Feature | Design Value |
|---|---|
| Full-range sample rate specification | Guaranteed 50–200 ksps performance eliminates design margining and simplifies firmware timing logic. |
| SPI/QSPI/MICROWIRE/DSP compatibility | Direct interface with TI C2000, STM32, and Renesas RL78 without protocol translation or glue logic. |
| Variable power management via CS | Dynamic power scaling from 2.34 mW (active) to 2.6 µW (shutdown) enables adaptive sampling in energy-constrained nodes. |
| Internal track-and-hold with 350 ns acquisition | Enables accurate sampling of fast-rising transients without external sample-hold circuitry or driver amplifiers. |
| Single-supply operation (2.7V–5.25V) | Eliminates dual-rail supplies and simplifies PCB layout in space-constrained portable systems. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Continuous analog voltage measurement from thermistor, strain gauge, or ECG electrode in handheld diagnostic device. IC Role / Device Role / Timing Role: Precision 10-bit digitizer capturing physiological signals at 100 ksps with minimal power draw between readings. Use Value: 61.6 dB SNR and <±0.14 LSB INL ensure sub-degree temperature resolution and reliable waveform morphology detection. | Use Scenario: Real-time monitoring of pressure, flow, or pH sensor outputs in factory automation PLC I/O module. IC Role / Device Role / Timing Role: Isolated analog front-end ADC interfacing with microcontroller via SPI, supporting 50–200 ksps configurable scan rates. Use Value: Guaranteed linearity over full temperature range (−40°C to +85°C) and supply range (2.7V–5.25V) ensures consistent calibration across environmental conditions. |
| Remote Environmental Data Loggers | Test & Measurement Front Ends |
Use Scenario: Solar-powered soil moisture and ambient light sensing node transmitting data over LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Low-power ADC activated only during measurement burst, then placed in 2.6 µW shutdown until next wake-up. Use Value: Shutdown current of 500 nA at 5.25V extends battery life beyond 5 years in intermittent-sampling deployments. | Use Scenario: Benchtop multimeter or oscilloscope auxiliary channel digitizing DC/low-frequency analog signals. IC Role / Device Role / Timing Role: High-fidelity 10-bit converter providing calibrated reference-grade readings with 30 ps aperture jitter. Use Value: 9.9 ENOB and 79 dB SFDR support accurate RMS, THD, and harmonic analysis up to 100 kHz input frequency. |
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 |
|---|---|---|---|
| ADC101S051CIMF/NOPB | Same pinout and interface, but specified for 200–500 ksps range; higher typical power (3.1 mW @ 3.6V). | Better suited for higher-throughput control loops requiring >200 ksps sustained sampling. | Select ADC101S051CIMF/NOPB only if design requires guaranteed performance above 200 ksps. |
| ADC081S021CIMF/NOPB | 8-bit resolution, same package and serial interface; lower power (1.4 mW @ 3.6V), reduced INL (±0.3 LSB max). | Appropriate for cost-sensitive, lower-accuracy applications like basic voltage supervision or LED dimming feedback. | Choose ADC081S021CIMF/NOPB where 8-bit resolution suffices and power budget is tighter than accuracy requirements. |
Compared with ADC101S051CIMF/NOPB and ADC081S021CIMF/NOPB, the ADC101S021CIMFX/NOPB uniquely balances 10-bit precision, industrial temperature stability, and ultra-low shutdown power - making it optimal for battery-operated instrumentation needing guaranteed 50–200 ksps fidelity without over-specifying speed or sacrificing resolution.
Availability
ADC101S021CIMFX/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and remote environmental data loggers requiring stable component supply across extended production lifecycles.
Supply support for ADC101S021CIMFX/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 50 years of innovation in precision data converters.
The ADC101S021CIMFX/NOPB belongs to TI's precision SAR ADC family designed for low-power, high-accuracy analog-to-digital conversion in space- and energy-constrained embedded systems.
FAQ
What is the maximum guaranteed sample rate for ADC101S021CIMFX/NOPB?
The ADC101S021CIMFX/NOPB is fully specified and guaranteed for operation from 50 ksps to 200 ksps. While the device can achieve up to 1 Msps under certain conditions, only the 50–200 ksps range ensures all electrical characteristics-including INL, SNR, and DNL-meet datasheet limits across temperature and supply voltage. This makes ADC101S021CIMFX/NOPB ideal for applications requiring predictable, validated performance without derating.
Does ADC101S021CIMFX/NOPB require an external reference voltage?
No, ADC101S021CIMFX/NOPB uses its analog supply voltage (VA) as the reference, eliminating the need for an external precision reference. The full-scale range is 0 V to VA, and output codes scale linearly with VA. This simplifies design and reduces BOM count, though designers must ensure VA is clean and stable-TI recommends local 1 µF + 0.1 µF bypassing-to maintain the specified 61.6 dB SNR and 9.9 ENOB.
How does power management work on ADC101S021CIMFX/NOPB?
Power management on ADC101S021CIMFX/NOPB is controlled exclusively via the CS pin. Pulling CS high before the 10th SCLK falling edge after initiation places the device in shutdown mode, reducing supply current to 500 nA (at +5.25V). In normal operation (CS low), it draws 0.65 mA at 3.6V/200 ksps. This enables precise duty-cycled operation-e.g., waking for 100 µs bursts every second-making ADC101S021CIMFX/NOPB highly suitable for battery-powered IoT endpoints.
Is ADC101S021CIMFX/NOPB compatible with standard SPI interfaces?
Yes, ADC101S021CIMFX/NOPB is fully compatible with SPI, QSPI, MICROWIRE, and common DSP serial interfaces. It uses a three-wire interface (CS, SCLK, SDATA) with data clocked out on SCLK falling edges in straight-binary format: three leading zeros, ten data bits (MSB first), and two trailing zeros. No configuration register or command sequence is needed-making integration with STM32, MSP430, or PIC microcontrollers straightforward and firmware-light.
What package options are available for ADC101S021CIMFX/NOPB?
The ADC101S021CIMFX/NOPB is offered in two RoHS-compliant 6-pin packages: SOT-23 (DBV) and WSON (NGF). Both support the same pinout and electrical specifications, operate from −40°C to +85°C, and share identical timing and accuracy performance. The WSON package includes an exposed thermal pad recommended for grounding to improve thermal dissipation and noise immunity in high-density layouts.
ADC101S021CIMFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- 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 ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC101S021CIMFX/NOPB FAQ
1.How can I place an order for ADC101S021CIMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101S021CIMFX/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 ADC101S021CIMFX/NOPB reliable?
The price and inventory of ADC101S021CIMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101S021CIMFX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101S021CIMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101S021CIMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101S021CIMFX/NOPB?
ADC101S021CIMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101S021CIMFX/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 ADC101S021CIMFX/NOPB?
For technical support, including ADC101S021CIMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101S021CIMFX/NOPB requirements.
6.How does Aetrix verify that ADC101S021CIMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101S021CIMFX/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 ADC101S021CIMFX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101S021CIMFX/NOPB?
All ADC101S021CIMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101S021CIMFX/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 ADC101S021CIMFX/NOPB part is unused and in its original packaging.
Return procedure for ADC101S021CIMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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