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Texas Instruments ADC101S101CIMFX/NOPB
- Part No.:
- ADC101S101CIMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADC101S101CIMFX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADC101S101CIMFX/NOPB from Texas Instruments is a single-channel, 10-bit successive-approximation ADC with SPI/QSPI/MICROWIRE-compatible serial interface, 500 ksps to 1 Msps sample rate range, ±0.2 LSB typical INL, and operation from 2.7V to 5.25V supply - used in portable instrumentation for analog sensor digitization.
For engineers reviewing the ADC101S101CIMFX/NOPB datasheet, ADC101S101CIMFX/NOPB pinout, ADC101S101CIMFX/NOPB application, or ADC101S101CIMFX/NOPB equivalent, key selection considerations include guaranteed performance across full 500 ksps–1 Msps range, low-power shutdown mode (2.5 µW at 5V), WSON-6/SOT-23-6 package compatibility, and straight-binary output timing alignment with standard microcontroller SPI peripherals.
Technical Context
The ADC101S101CIMFX/NOPB implements a charge-redistribution DAC core with internal track-and-hold, enabling precise sampling on the falling edge of CS and conversion completion within 16 SCLK cycles. Its architecture supports variable throughput by adjusting SCLK frequency (10–20 MHz) and CS duty cycle without sacrificing linearity.
It uses VA as both supply and reference, delivering 10-bit resolution with no missing codes over −40°C to +85°C. The digital interface operates independently of VA voltage level, accepting logic inputs up to 5.25V regardless of supply, simplifying mixed-voltage system integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes - ensures monotonicity and deterministic code mapping for control-loop feedback. |
| Sample Rate Range | 500 ksps to 1 Msps fully specified - eliminates derating uncertainty when scaling throughput in battery-powered systems. |
| INL (typ) | ±0.2 LSB - enables <1 LSB error in 0–VA input range, critical for precision sensor interfacing like RTD or strain gauge bridges. |
| SNR (typ) | 62 dB - supports >9.8 ENOB for clean digitization of low-amplitude AC signals up to 100 kHz. |
| Power (3V, typ) | 2.0 mW - allows continuous 1 Msps operation in ultra-low-power portable devices with tight thermal budgets. |
| Shutdown Power (5V) | 2.5 µW - reduces idle current by 4000×, enabling microamp-level system sleep modes without external power gating. |
| Supply Range | 2.7V to 5.25V - permits direct connection to Li-ion battery rails (3.0–4.2V) or regulated 3.3V/5V domains without LDO overhead. |
Pinout & Package
ADC101S101CIMFX/NOPB is packaged in a 6-lead WSON (NGF) package with exposed thermal pad, pin-compatible with SOT-23-6 (DBV). Both packages support industrial temperature range (−40°C to +85°C) and share identical pin mapping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Analog input | Single-ended input referenced to GND; accepts 0V to VA range - requires low-impedance source (<500 Ω) to minimize acquisition error from 26 pF sampling capacitor. |
| VA | Analog supply / reference | Provides both power and full-scale reference; noise on this pin directly modulates LSB size (VA/1024) - mandates local 1 µF + 0.1 µF bypassing. |
| GND | Analog/digital ground | Common return for analog input, digital I/O, and supply - must be low-impedance node; center pad (WSON) requires PCB connection to GND plane for thermal and noise control. |
| CS | Chip select / mode control | Falling edge initiates conversion and exits TRI-STATE; high state forces shutdown mode - enables dynamic power scaling via software-controlled duty cycling. |
| SDATA | Serial data output | 3 leading zeros + 10-bit straight binary + 2 trailing zeros clocked on SCLK falling edges - aligns with standard SPI frame formats for seamless MCU integration. |
| SCLK | Serial clock input | Drives conversion timing and data readout; 10–20 MHz range sets throughput while maintaining aperture jitter ≤30 ps - determines minimum quiet time (tQUIET = 50 ns) between conversions. |
Key Features
| Feature | Design Value |
|---|---|
| Full-speed specification across 500 ksps–1 Msps | Eliminates need for derating or interpolation - ensures DNL (±0.3/−0.2 LSB) and SNR (62 dB) remain valid at any rate in range. |
| SPI/QSPI/MICROWIRE/DSP interface compatibility | Enables direct connection to TI C2000, STM32, or NXP LPC microcontrollers without level-shifting or protocol translation logic. |
| Variable power management via CS control | Supports three operational states: active conversion (10 mW @5V), standby (60 µA), and deep shutdown (2.5 µW) - simplifies firmware-driven energy optimization. |
| Single-supply operation (2.7V–5.25V) | Removes need for dual-rail supplies or external reference ICs - reduces BOM count and layout area in space-constrained portable designs. |
| Industrial temperature range (−40°C to +85°C) | Validates performance in automotive cabin modules, industrial PLC I/O cards, and outdoor environmental sensors without thermal compensation. |
Applications
| Portable Medical Sensors | Remote Environmental Monitoring |
|---|---|
Use Scenario: Battery-powered wearable ECG front-end digitizing biopotential signals at 1 ksps with 3.3V rail. IC Role / Device Role / Timing Role: Single-channel ADC capturing analog electrode outputs; synchronized to MCU SPI clock with 16-cycle deterministic latency. Use Value: 2.0 mW power at 3V enables >72-hour runtime on 100 mAh coin cell; ±0.2 LSB INL ensures accurate R-wave amplitude detection for arrhythmia analysis. |
Use Scenario: Solar-powered soil moisture node logging capacitance-based sensor readings every 5 minutes. IC Role / Device Role / Timing Role: Low-duty-cycle ADC activated only during measurement burst; enters 2.5 µW shutdown between samples. Use Value: Shutdown current extends 5-year field deployment life; 62 dB SNR resolves sub-0.1% volumetric water content changes in noisy agricultural RF environments. |
| Industrial Process Control I/O | Test & Measurement Signal Conditioning |
Use Scenario: DIN-rail mounted PLC analog input module acquiring 4–20 mA loop signals across 8 channels using multiplexed ADCs. IC Role / Device Role / Timing Role: Per-channel ADC providing isolated 10-bit digitization; CS controlled per channel to avoid inter-channel crosstalk during acquisition. Use Value: Guaranteed 500 ksps–1 Msps spec ensures consistent timing margin across temperature; WSON-6 package supports 0.5 mm pitch PCB routing in dense I/O card layouts. |
Use Scenario: Handheld multimeter measuring AC/DC voltage, current, and resistance with auto-ranging and true RMS calculation. IC Role / Device Role / Timing Role: Primary ADC for DC-coupled signal path; driven by precision 3.3V LDO to minimize reference drift-induced gain error. Use Value: 62 dB SNR and 9.9-bit ENOB meet Class II accuracy requirements per IEC 61010; straight-binary output simplifies real-time RMS math in ARM Cortex-M4 firmware. |
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 | Specified for 200–500 ksps range; lower max sample rate but identical pinout, interface, and supply specs. | Better suited for cost-sensitive industrial controllers where 500 ksps suffices and lower power at mid-range rates is prioritized. | Select when maximum throughput requirement is ≤500 ksps - achieves same accuracy with reduced SCLK timing constraints. |
| ADC101S021CIMF/NOPB | Specified for 50–200 ksps range; shares package and interface but optimized for ultra-low-power sub-200 ksps operation. | Ideal for battery-gauging ICs or slow-scan IoT sensors where acquisition latency is non-critical and average current must be minimized. | Choose for applications requiring <100 ksps with tighter shutdown current budget - maintains same footprint while reducing system-level filtering complexity. |
Compared with ADC101S051CIMF/NOPB and ADC101S021CIMF/NOPB, the ADC101S101CIMFX/NOPB uniquely guarantees full 10-bit performance up to 1 Msps without trade-offs in INL, SNR, or power - making it the only option in the family for high-fidelity, high-throughput portable instrumentation.
Availability
ADC101S101CIMFX/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, remote environmental monitoring, and industrial process control I/O requiring stable component supply across extended production lifecycles.
Supply support for ADC101S101CIMFX/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 signal chain solutions.
The ADC101S101CIMFX/NOPB belongs to TI's single-channel SAR ADC product line, designed specifically for space- and power-constrained applications requiring guaranteed performance across wide sample-rate ranges without external reference or power management components.
FAQ
What is the maximum guaranteed sample rate for ADC101S101CIMFX/NOPB?
The ADC101S101CIMFX/NOPB is fully specified for operation up to 1 Msps across its entire industrial temperature range (−40°C to +85°C) and supply range (2.7V to 5.25V). This maximum rate is ensured with all key specifications - including ±0.2 LSB INL, 62 dB SNR, and 2.5 µW shutdown power - meeting datasheet limits without derating. Performance remains valid at any intermediate rate down to 500 ksps.
Does ADC101S101CIMFX/NOPB require an external voltage reference?
No, the ADC101S101CIMFX/NOPB uses its VA supply pin as both power source and reference voltage, eliminating the need for an external reference IC. The LSB step size is fixed at VA/1024, so supply noise directly impacts accuracy - hence the datasheet mandates local 1 µF + 0.1 µF bypass capacitors within 1 cm of the VA pin to maintain 62 dB SNR performance.
Is ADC101S101CIMFX/NOPB pin-compatible with other devices in the ADC101Sxx1 family?
Yes, the ADC101S101CIMFX/NOPB is fully pin- and function-compatible with ADC101S021CIMF/NOPB and ADC101S051CIMF/NOPB per Table 2 of the SNAS306D datasheet. All share identical 6-pin WSON/SOT-23 footprints, pin assignments, serial interface timing, and power sequencing - enabling drop-in replacement when adjusting sample rate requirements without PCB revision.
How does the power-down mode of ADC101S101CIMFX/NOPB operate?
The ADC101S101CIMFX/NOPB enters shutdown mode when CS is held high before the 10th falling edge of SCLK after conversion initiation. In this state, supply current drops to 2.5 µW at 5V, reducing power by 4000× versus active operation. The device remains in shutdown until CS falls again, with 1 µs power-up time - enabling firmware-controlled burst-mode sampling for ultra-low average current in battery applications.
What digital interface standards does ADC101S101CIMFX/NOPB support?
The ADC101S101CIMFX/NOPB supports SPI™, QSPI™, MICROWIRE, and common DSP serial interfaces through its 3-wire SDATA/SCLK/CS interface. It outputs straight-binary data with 3 leading zeros, 10 data bits (MSB first), and 2 trailing zeros on SCLK falling edges - matching standard SPI frame formats and enabling direct connection to microcontrollers like STM32, MSP430, and TI C2000 without protocol translation.
ADC101S101CIMFX/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):
- 1M
- 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:
- -
ADC101S101CIMFX/NOPB FAQ
1.How can I place an order for ADC101S101CIMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101S101CIMFX/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 ADC101S101CIMFX/NOPB reliable?
The price and inventory of ADC101S101CIMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101S101CIMFX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101S101CIMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101S101CIMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101S101CIMFX/NOPB?
ADC101S101CIMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101S101CIMFX/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 ADC101S101CIMFX/NOPB?
For technical support, including ADC101S101CIMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101S101CIMFX/NOPB requirements.
6.How does Aetrix verify that ADC101S101CIMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101S101CIMFX/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 ADC101S101CIMFX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101S101CIMFX/NOPB?
All ADC101S101CIMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101S101CIMFX/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 ADC101S101CIMFX/NOPB part is unused and in its original packaging.
Return procedure for ADC101S101CIMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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