Texas Instruments ADC101S051QIMF/NOPB
- Part No.:
- ADC101S051QIMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADC101S051QIMF/NOPB.pdf
- Description:
- IC ADC 10BIT SAR SOT23-6
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
ADC101S051QIMF/NOPB from Texas Instruments is a single-channel, 10-bit successive-approximation ADC with SPI/QSPI/MICROWIRE-compatible serial interface, operating at 200–500 ksps sample rates, 2.7V–5.25V supply, and AEC-Q100 Grade 1 qualification for automotive sensor signal conditioning.
For engineers reviewing the ADC101S051QIMF/NOPB datasheet, ADC101S051QIMF/NOPB pinout, ADC101S051QIMF/NOPB application, or ADC101S051QIMF/NOPB equivalent, key selection factors include guaranteed performance across full sample-rate range, low-power shutdown mode (2.6 µW), ±0.15 LSB typical INL/DNL, 61.6 dB SNR, and WSON-6 package compatibility with space-constrained automotive and industrial data acquisition systems.
Technical Context
The ADC101S051QIMF/NOPB implements a charge-redistribution DAC core with internal track-and-hold, enabling precise sampling of analog inputs up to VA (2.7–5.25 V) with 350 ns minimum acquisition time and 3 ns aperture delay. Its control logic synchronizes conversion initiation on CS falling edge and outputs 13-bit frames (3 leading zeros + 10 data bits + 2 trailing zeros) on SDATA at SCLK falling edges.
It supports variable power management via CS-controlled shutdown, reducing current to 500 nA at 5.25 V, and operates over −40°C to +125°C. The device uses straight binary coding, requires no external reference (ratiometric to VA), and features digital I/O voltage tolerance up to 5.25 V independent of VA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - guarantees monotonicity and full code coverage across temperature and supply range. |
| Sample Rate | 200–500 ksps - fully specified performance across entire range, not just at nominal rate. |
| INL / DNL | +0.15 / −0.09 LSB and +0.15 / −0.11 LSB (typ) - ensures high linearity for precision sensor digitization. |
| SNR | 61.6 dB (typ) at 100 kHz input - enables >9.9 ENOB for accurate dynamic signal capture. |
| Power (3.6V) | 2.7 mW (typ) in normal mode - supports battery-powered portable instrumentation without thermal derating. |
| Shutdown Power | 2.6 µW at 5.25 V - allows microamp-level system sleep states in automotive ECUs. |
| Operating Temp | −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive applications. |
| Interface | SPI/QSPI/MICROWIRE/DSP compatible - interoperable with common microcontrollers and DSPs without level-shifting. |
Pinout & Package
ADC101S051QIMF/NOPB is housed in a 6-pin WSON package (NGF0006A), 2.0 mm × 2.0 mm × 0.75 mm, with exposed thermal pad recommended to be connected to GND for optimal thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA | Analog supply input | Provides reference and power for analog core; must be bypassed with 1 µF + 0.1 µF capacitors within 1 cm. |
| GND | Analog/digital ground | Common return for all signals and supplies; center pad must be soldered to GND plane for thermal and EMI control. |
| VIN | Analog input | Single-ended input ranging 0 V to VA; input capacitance is 4 pF (hold) / 30 pF (track); max drive impedance ~500 Ω. |
| SCLK | Serial clock input | Controls conversion timing and data readout; supports 25 kHz–20 MHz frequency with 40–60% duty cycle. |
| SDATA | Serial data output | Three-state output delivering 13-bit frame (3-0-10-0-2) on falling SCLK edges; tri-states when CS is high. |
| CS | Chip select | Falling edge initiates conversion and enables SDATA; high state forces shutdown mode with ultra-low quiescent current. |
Key Features
| Feature | Design Value |
|---|---|
| Full-range sample-rate specification | Guaranteed 200–500 ksps performance eliminates need for derating or interpolation in variable-speed systems. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications requiring operation up to +125°C ambient, including engine control and ADAS sensors. |
| Ratiometric architecture | Uses VA as both supply and reference - eliminates need for external voltage reference and simplifies BOM. |
| Low-noise track-and-hold | 3 ns aperture jitter and 30 pF track-mode input capacitance enable clean sampling of fast-changing sensor signals. |
| Flexible power management | Hardware-controlled shutdown via CS reduces active current by >1000×, enabling adaptive sampling in energy-sensitive nodes. |
| Robust digital interface | Digital pins tolerate up to 5.25 V regardless of VA - supports mixed-voltage systems without level translators. |
Applications
| Automotive Engine Control | Industrial Temperature Monitoring |
|---|---|
|
Use Scenario: Digitizing analog outputs from exhaust gas oxygen (EGO) and coolant temperature sensors in engine control units. IC Role / Device Role / Timing Role: Single-channel ratiometric ADC acquiring conditioned sensor voltages at 250 ksps with minimal latency and thermal drift. Use Value: AEC-Q100 Grade 1 rating and −40°C to +125°C operation ensure reliable signal fidelity under hood temperature extremes. |
Use Scenario: Converting thermistor or RTD bridge outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision 10-bit converter interfacing with microcontroller SPI bus for multi-channel scan-based acquisition. Use Value: ±0.15 LSB INL and 61.6 dB SNR maintain <0.1% measurement accuracy across 4–20 mA loop interfaces. |
| Portable Medical Instrumentation | Remote Environmental Sensing |
|
Use Scenario: Sampling biopotential signals (e.g., ECG lead-off detection) in handheld patient monitors with battery constraints. IC Role / Device Role / Timing Role: Low-power ADC operating from 3.3 V supply, entering shutdown between measurements to extend battery life. Use Value: 2.6 µW shutdown power and 2.7 mW active power enable >100-hour runtime on coin-cell batteries. |
Use Scenario: Capturing analog outputs from wireless sensor nodes measuring air quality, humidity, or pressure in smart building networks. IC Role / Device Role / Timing Role: SPI-compatible ADC integrated into ultra-low-power MCU subsystem for scheduled burst-mode acquisition. Use Value: WSON-6 footprint minimizes PCB area, while 200 ksps throughput supports oversampling for noise reduction in RF-sensitive environments. |
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 |
|---|---|---|---|
| ADC101S021QIMF/NOPB | Lower max sample rate (50–200 ksps); same pinout, package, and interface; identical INL/SNR specs at reduced speed. | Better suited for low-throughput, ultra-low-power systems where 200 ksps is excessive. | Select when system sampling requirement is ≤200 ksps and lower dynamic power is prioritized over speed headroom. |
| ADC101S101QIMF/NOPB | Higher max sample rate (500 ksps–1 Msps); same pinout and package; maintains 10-bit resolution but with slightly higher typical power (3.1 mW @ 3.6 V). | Required for real-time control loops demanding >500 ksps or oversampled narrowband signal analysis. | Select when future-proofing for higher bandwidth or when designing for 1 Msps capability within same layout. |
Compared with ADC101S021QIMF/NOPB, the ADC101S051QIMF/NOPB delivers 2.5× higher guaranteed throughput without layout change; versus ADC101S101QIMF/NOPB, it offers identical pin compatibility with lower typical power consumption at mid-range sample rates-ideal for cost-optimized automotive and industrial designs targeting 200–500 ksps.
Availability
ADC101S051QIMF/NOPB is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, portable medical devices, and remote environmental sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADC101S051QIMF/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 automotive-grade product validation and manufacturing excellence.
The ADC101S051QIMF/NOPB belongs to TI's precision SAR ADC family designed specifically for high-reliability, low-power signal acquisition in automotive, industrial, and medical applications where AEC-Q100 compliance and guaranteed parametric performance across temperature are mandatory.
FAQ
What is the maximum sample rate guaranteed for ADC101S051QIMF/NOPB across its full operating temperature range?
The ADC101S051QIMF/NOPB is fully specified for operation up to 500 ksps across its entire AEC-Q100 Grade 1 temperature range (−40°C to +125°C). Unlike many SAR ADCs rated only at 25°C, this part guarantees timing, linearity, and noise performance at 500 ksps under worst-case thermal and supply conditions - critical for automotive real-time control applications where deterministic throughput is required.
Does ADC101S051QIMF/NOPB require an external voltage reference?
No, ADC101S051QIMF/NOPB does not require an external voltage reference. It uses its analog supply voltage (VA) as both power source and reference, implementing a ratiometric architecture. This eliminates reference ICs and associated passive components, reduces board area, and ensures that output codes scale linearly with VA - ideal for systems where supply rail stability dominates overall measurement accuracy.
How does the shutdown mode of ADC101S051QIMF/NOPB reduce system power consumption?
The ADC101S051QIMF/NOPB enters ultra-low-power shutdown mode when CS is held high, drawing only 500 nA at 5.25 V (2.6 µW). This allows microcontroller firmware to gate conversions precisely - for example, waking the ADC only during scheduled sensor reads - reducing average system power by orders of magnitude compared to continuous operation, especially in battery-powered automotive telematics or wireless sensor nodes.
Is ADC101S051QIMF/NOPB pin-compatible with other members of the ADC101Sxx1 family?
Yes, ADC101S051QIMF/NOPB is fully pin- and function-compatible with ADC101S021QIMF/NOPB and ADC101S101QIMF/NOPB per TI's official documentation. All share identical 6-pin WSON (NGF0006A) packaging, pin assignments, serial interface protocol, and registerless operation - enabling drop-in replacement across 50–1000 ksps sample-rate variants without PCB redesign or firmware changes.
What is the significance of the "Q" suffix in ADC101S051QIMF/NOPB?
The "Q" in ADC101S051QIMF/NOPB denotes AEC-Q100 Grade 1 qualification, certifying the device for automotive applications with guaranteed operation from −40°C to +125°C ambient temperature. This includes rigorous stress testing for reliability, failure mechanisms, and parametric stability - distinguishing it from the commercial-grade ADC101S051IMF/NOPB (−40°C to +85°C) and validating its use in engine control, transmission, and ADAS subsystems.
ADC101S051QIMF/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):
- 500k
- 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 ~ 125°C
- Supplier Device Package:
- SOT-23-6
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
ADC101S051QIMF/NOPB FAQ
1.How can I place an order for ADC101S051QIMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101S051QIMF/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 ADC101S051QIMF/NOPB reliable?
The price and inventory of ADC101S051QIMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101S051QIMF/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101S051QIMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101S051QIMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101S051QIMF/NOPB?
ADC101S051QIMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101S051QIMF/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 ADC101S051QIMF/NOPB?
For technical support, including ADC101S051QIMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101S051QIMF/NOPB requirements.
6.How does Aetrix verify that ADC101S051QIMF/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101S051QIMF/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 ADC101S051QIMF/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101S051QIMF/NOPB?
All ADC101S051QIMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101S051QIMF/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 ADC101S051QIMF/NOPB part is unused and in its original packaging.
Return procedure for ADC101S051QIMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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