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Texas Instruments ADC081S101CIMF/NOPB
- Part No.:
- ADC081S101CIMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADC081S101CIMF/NOPB.pdf
- Description:
- IC ADC 8BIT SAR SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,509
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Product details
Overview
ADC081S101CIMF/NOPB from Texas Instruments is a single-channel, 8-bit successive-approximation ADC with SPI/QSPI/MICROWIRE-compatible serial interface, operating at 500 ksps to 1 Msps sample rates, 2.7V–5.25V supply, and ±0.05 LSB typical INL - used in portable instrumentation for analog sensor digitization.
For engineers reviewing the ADC081S101CIMF/NOPB datasheet, ADC081S101CIMF/NOPB pinout, ADC081S101CIMF/NOPB application, or ADC081S101CIMF/NOPB equivalent, key selection criteria include guaranteed performance across full sample-rate range, low-power shutdown mode (2.5 µW), straight-binary output format, and WSON/SOT-23 package compatibility.
Technical Context
The ADC081S101CIMF/NOPB employs a charge-redistribution DAC core with internal track-and-hold, enabling precise sampling at up to 1 Msps. Its conversion timing is fully synchronized to SCLK falling edges, with aperture jitter of 30 ps and acquisition time ≤350 ns.
It uses a 16-cycle serial frame: three leading zeros, eight MSB-first data bits, and four trailing zeros. The SDATA output enters high-impedance state after the 16th SCLK falling edge or on CS rising edge - supporting multi-drop bus sharing without external tri-state logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output codes with no missing codes guaranteed. |
| Sample Rate Range | 500 ksps to 1 Msps - fully specified performance across entire range, not just at one rate. |
| INL (typ) | ±0.05 LSB - ensures monotonicity and <0.02% full-scale linearity error for precision sensor interfacing. |
| SNR (typ) | 49.7 dB - supports ~7.9 ENOB, sufficient for medium-fidelity signal capture (e.g., thermistor, potentiometer, pressure transducer). |
| Power (3V, typ) | 2.0 mW - enables battery-powered operation for >1 year in intermittent-sampling systems. |
| Shutdown Power | 2.5 µW at 5V - reduces average power by >99% during idle periods without reset or reconfiguration. |
| Supply Range | 2.7V to 5.25V - interoperable with both 3.3V and 5V logic domains and LDO-regulated rails. |
Pinout & Package
ADC081S101CIMF/NOPB is packaged in a 6-lead WSON (2.0 mm × 2.0 mm, 0.5 mm pitch) with exposed thermal pad - compatible with space-constrained PCB layouts and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA | Analog supply input | Provides reference and core power; must be bypassed with 1 µF + 0.1 µF capacitors within 1 cm for SNR stability. |
| CS | Chip select input | Falling edge initiates conversion and enables SDATA; high state forces shutdown mode with 2.5 µW consumption. |
| GND | Analog/digital ground | Single ground return for all signals and supplies; center thermal pad must be soldered to GND plane for thermal and noise control. |
| SDATA | Serial data output | Tri-state CMOS output delivering 16-bit frame (3+8+4); high-impedance after 16th SCLK falling edge or CS rise. |
| VIN | Analog input | 0 V to VA unipolar range; input impedance modeled as 500 Ω series + 26 pF sampling capacitor - requires low-Z source or anti-aliasing filter. |
| SCLK | Serial clock input | 25 kHz–20 MHz clock; falling edges clock out data and control conversion timing; duty cycle 40–60% required. |
Key Features
| Feature | Design Value |
|---|---|
| Full-range sample-rate specification | Performance guaranteed from 500 ksps to 1 Msps - eliminates derating uncertainty when scaling throughput in final design. |
| SPI/QSPI/MICROWIRE/DSP compatibility | Direct interface to TI C2000, MSP430, STM32, and ADI Blackfin without level-shifting or protocol translation logic. |
| Variable power management | Dynamic trade-off between throughput and power via CS-controlled shutdown - enables µA-level average current in burst-mode sensing. |
| Single-supply operation | No external reference or negative rail needed; VA serves as both supply and reference - simplifies BOM and layout. |
| Industrial temperature range | −40°C to +85°C operation - qualified for embedded control, remote monitoring, and industrial field instrumentation. |
Applications
| Portable Data Loggers | Remote Sensor Nodes |
|---|---|
Use Scenario: Battery-powered environmental monitors capturing temperature, humidity, and light levels at 1 ksps intervals. IC Role / Device Role / Timing Role: Digitizes analog outputs from low-bandwidth sensors; provides deterministic 1 µs conversion latency aligned to microcontroller wake-up events. Use Value: 2.0 mW active power and 2.5 µW shutdown enable >2-year battery life using CR2032 cells in duty-cycled operation. |
Use Scenario: Wireless IoT nodes transmitting sensor data over LoRaWAN or NB-IoT with infrequent wake-ups. IC Role / Device Role / Timing Role: Low-latency ADC front-end triggered by MCU GPIO; serial interface minimizes I/O pin count and firmware overhead. Use Value: SPI-compatible framing and tri-state SDATA allow shared bus with other peripherals - reducing PCB layer count and routing complexity. |
| Industrial Panel Meters | Lab Equipment Front Ends |
Use Scenario: DIN-rail mounted voltage/current meters with 4–20 mA loop interfaces and local LCD display. IC Role / Device Role / Timing Role: Converts conditioned analog inputs to digital values for real-time RMS calculation and display update at 100 Hz. Use Value: ±0.05 LSB INL and 49.7 dB SNR ensure <0.1% measurement accuracy across 0–100% scale without calibration drift compensation. |
Use Scenario: Benchtop oscilloscopes and function generators requiring auxiliary channel digitization for trigger or status monitoring. IC Role / Device Role / Timing Role: Provides auxiliary 8-bit digitization path synchronized to main acquisition clock; supports fast setup/teardown via CS control. Use Value: 30 ps aperture jitter and 1 Msps max rate support sub-µs timing resolution for event correlation and glitch detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC081S051CIMF/NOPB | Same architecture and pinout; rated for 200–500 ksps range only - lower max sample rate and relaxed AC specs. | Better suited for cost-sensitive, lower-throughput systems (e.g., basic thermostats) where 500 ksps is sufficient. | Select ADC081S051CIMF/NOPB if system requires ≤500 ksps and prioritizes lower unit cost over headroom. |
| ADC081S021CIMF/NOPB | Identical package and interface; specified for 50–200 ksps - optimized for ultra-low-power, low-frequency sensing. | Ideal for energy-harvesting devices or solar-powered sensors where average current must stay below 10 µA. | Choose ADC081S021CIMF/NOPB when continuous 1 Msps capability is unnecessary and standby power dominates budget. |
Compared with ADC081S051CIMF/NOPB and ADC081S021CIMF/NOPB, the ADC081S101CIMF/NOPB delivers verified 1 Msps operation with tighter INL (±0.05 LSB vs. ±0.1 LSB) and higher SNR (49.7 dB vs. 48.5 dB), making it the only option in the family qualified for high-dynamic-range, high-throughput embedded digitization.
Availability
ADC081S101CIMF/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, remote sensor networks, and industrial panel meters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ADC081S101CIMF/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 focused on analog, embedded processing, and connectivity technologies - serving industrial, automotive, and communications markets with high-reliability components.
The ADC081S101CIMF/NOPB belongs to TI's precision SAR ADC portfolio designed for low-power, space-constrained systems needing simple serial interfacing and guaranteed performance across variable sample rates - not requiring external references or complex calibration.
FAQ
What is the maximum guaranteed sample rate for ADC081S101CIMF/NOPB?
The ADC081S101CIMF/NOPB is fully specified and guaranteed to operate at up to 1 Msps across the industrial temperature range (−40°C to +85°C). This maximum rate is ensured with SCLK frequencies between 10 MHz and 20 MHz, and meets all AC specifications including SNR, THD, and SFDR at that throughput - unlike many 8-bit ADCs rated only at nominal rates.
Does ADC081S101CIMF/NOPB require an external voltage reference?
No, ADC081S101CIMF/NOPB does not require an external voltage reference. It uses its VA supply pin as the reference source, supporting unipolar input ranges from 0 V to VA. This eliminates BOM cost and layout area for a separate reference IC while maintaining ±0.05 LSB INL performance across 2.7V–5.25V supply variation.
How does the power-down mode work on ADC081S101CIMF/NOPB?
ADC081S101CIMF/NOPB enters shutdown mode when the CS pin is held high before the 10th falling edge of SCLK after a conversion start. In this state, supply current drops to 2.5 µW at 5V, and SDATA enters high-impedance. The device resumes normal operation on the next CS falling edge - with no reset sequence or delay required.
Is ADC081S101CIMF/NOPB compatible with 3.3V microcontrollers?
Yes, ADC081S101CIMF/NOPB is fully compatible with 3.3V microcontrollers. Its digital inputs (CS, SCLK) accept voltages up to 5.25V regardless of VA supply, and SDATA output swings rail-to-rail (0 V to VA). When powered from 3.3V, SDATA logic levels meet standard 3.3V CMOS thresholds, enabling direct connection to MSP430, STM32, and similar MCUs.
What package options are available for ADC081S101CIMF/NOPB?
ADC081S101CIMF/NOPB is offered exclusively in a 6-lead WSON package (2.0 mm × 2.0 mm, 0.5 mm pitch) with an exposed thermal pad. This compact, leadless package supports high-density PCB layouts and automated reflow assembly. It is pin-compatible with the legacy 6-lead SOT-23 variant but offers superior thermal performance and smaller footprint.
ADC081S101CIMF/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:
- 8
- 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:
- -
ADC081S101CIMF/NOPB FAQ
1.How can I place an order for ADC081S101CIMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC081S101CIMF/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 ADC081S101CIMF/NOPB reliable?
The price and inventory of ADC081S101CIMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC081S101CIMF/NOPB is usually 5 days.
3.What payment methods are accepted for ADC081S101CIMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC081S101CIMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC081S101CIMF/NOPB?
ADC081S101CIMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC081S101CIMF/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 ADC081S101CIMF/NOPB?
For technical support, including ADC081S101CIMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC081S101CIMF/NOPB requirements.
6.How does Aetrix verify that ADC081S101CIMF/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC081S101CIMF/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 ADC081S101CIMF/NOPB meets industry standards.
7.What is the process for return or replacement of ADC081S101CIMF/NOPB?
All ADC081S101CIMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC081S101CIMF/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 ADC081S101CIMF/NOPB part is unused and in its original packaging.
Return procedure for ADC081S101CIMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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