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Texas Instruments ADC101S051QIMFX/NOPB
- Part No.:
- ADC101S051QIMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-6
- Datasheet:
-
ADC101S051QIMFX/NOPB.pdf
- Description:
- ADC101S051-Q1 - AUTOMOTIVE 10-BI
- Quantity:
- Payment:
- Shipping:
Inventory:2,110
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Product details
Overview
ADC101S051QIMFX/NOPB from Texas Instruments is a single-channel, 10-bit successive-approximation ADC with SPI/QSPI/MICROWIRE/DSP-compatible serial interface, operating at 200–500 ksps sample rates, 2.7V–5.25V supply, and −40°C to +125°C temperature range. It delivers 61.6 dB SNR (typ), ±0.15 LSB INL (typ), and 2.6 µW shutdown power, used in automotive sensor signal conditioning and high-reliability remote data acquisition.
For engineers reviewing the ADC101S051QIMFX/NOPB datasheet, ADC101S051QIMFX/NOPB pinout, ADC101S051QIMFX/NOPB application, or ADC101S051QIMFX/NOPB equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, WSON-6 package compatibility, 10-bit resolution with no missing codes, and low-power serial ADC integration for space-constrained industrial and automotive control systems.
Technical Context
The ADC101S051QIMFX/NOPB uses a charge-redistribution DAC core with internal track-and-hold, enabling precise sampling at up to 500 ksps without external components. Its conversion timing is fully synchronous to SCLK, with aperture jitter of 30 ps and acquisition time ≤350 ns.
It implements a three-wire serial interface (CS, SCLK, SDATA) with straight-binary output, supporting SPI frame formats including three leading zeros, ten data bits (MSB first), and two trailing zeros. The device transitions between track and hold modes on defined SCLK edges, with CS controlling both conversion initiation and output tri-state enable/disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - guarantees monotonicity and full code coverage across full input range. |
| Sample Rate | 200–500 ksps - fully specified performance across this range, enabling flexible throughput tuning without derating. |
| INL / DNL | ±0.15 LSB (typ) / +0.15/−0.11 LSB (typ) - ensures high linearity for precision measurement in closed-loop control. |
| SNR | 61.6 dB (typ) at 100 kHz input - supports >9.9 ENOB for accurate digitization of analog sensor outputs. |
| Supply Range | +2.7 V to +5.25 V - allows direct interfacing with 3.3 V or 5 V logic and mixed-voltage systems. |
| Operating Temp | −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive applications. |
| Shutdown Power | 2.6 µW at +5.25 V - enables ultra-low-power duty-cycled sensing in battery-operated telemetry nodes. |
Pinout & Package
The ADC101S051QIMFX/NOPB is packaged in a 6-pin WSON (6-mm², 2 mm × 2 mm, 0.5 mm pitch) with exposed thermal pad, rated for −40°C to +125°C operation and qualified per AEC-Q100 Grade 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA | Analog supply | Primary power rail (2.7–5.25 V); must be bypassed with 1 µF + 0.1 µF capacitors within 1 cm for stable reference and noise immunity. |
| GND | Analog/digital ground | Common return for analog input, digital interface, and supply; center pad must be connected to GND for thermal and EMI performance. |
| VIN | Analog input | Single-ended input referenced to GND, range 0 V to VA; input capacitance is 4 pF (hold) / 30 pF (track), requiring low-impedance drive. |
| 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 | Tri-state CMOS output delivering 10-bit result as straight binary, clocked on falling SCLK edges with fixed 3-10-2 bit framing. |
| CS | Chip select | Active-low conversion trigger and output enable; falling edge initiates conversion, rising edge places SDATA in high-impedance state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications with guaranteed operation from −40°C to +125°C and robust ESD tolerance (3500 V HBM). |
| Variable power management | Dynamic power scaling via CS-controlled shutdown mode reduces current to 500 nA (typ), enabling microamp-level system sleep states. |
| SPI/QSPI/MICROWIRE compatibility | Hardware-level interoperability with common microcontrollers and DSPs without protocol translation or glue logic. |
| Internal track-and-hold | Eliminates need for external sample-hold circuitry; supports full-scale AC signals up to 8 MHz (−3 dB bandwidth at +3 V). |
| No missing codes over full range | Guarantees monotonic transfer function essential for position feedback, motor control, and safety-critical closed-loop systems. |
Applications
| Automotive Engine Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Digitizing throttle position, coolant temperature, and manifold pressure signals in engine control units (ECUs). IC Role / Device Role / Timing Role: Precision analog front-end ADC providing 10-bit resolution and AEC-Q100 reliability for real-time sensor fusion. Use Value: Enables deterministic sampling at ≥200 ksps with <30 ps aperture jitter, meeting ASAM MCD-2 MC timing constraints for ISO 26262-compliant diagnostics. |
Use Scenario: Converting outputs from strain gauges, RTDs, and current-sense amplifiers in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Low-power, serial-output ADC interfaced directly to ARM Cortex-M microcontrollers via SPI. Use Value: Reduces BOM count by eliminating external reference and buffer op-amps while maintaining ±0.15 LSB linearity across industrial temperature range. |
| Portable Medical Monitoring | Remote Telemetry Node |
|
Use Scenario: Sampling biopotential signals (ECG, EMG) in battery-powered wearable health devices. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current ADC supporting duty-cycled acquisition to extend battery life. Use Value: Achieves 61.6 dB SNR (typ) at 3.6 V supply with only 2.7 mW active power, enabling >7-day runtime on coin-cell batteries. |
Use Scenario: Capturing environmental sensor data (temperature, humidity, gas concentration) in wireless IoT edge nodes. IC Role / Device Role / Timing Role: Serial ADC integrated into ultra-low-power sub-GHz RF SoC platforms with minimal GPIO usage. Use Value: 2.6 µW shutdown power and 1 µs wake-up time allow synchronized burst sampling every 10 seconds without compromising RF link budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC101S051IMFX | Same architecture and pinout, but rated for −40°C to +85°C (non-automotive grade); lower cost, no AEC-Q100 validation. | Not suitable for under-hood automotive use; acceptable for commercial/industrial control panels and consumer electronics. | Select ADC101S051IMFX when ambient temperature stays below +85°C and automotive qualification is unnecessary. |
| ADC101S021QIMFX/NOPB | Same package and interface, but optimized for 50–200 ksps range; lower power (1.8 mW at 3.6 V) and reduced SNR (60.5 dB). | Better suited for slower-sampling applications like HVAC monitoring or basic data loggers where throughput <200 ksps suffices. | Choose ADC101S021QIMFX/NOPB when system sampling rate is ≤200 ksps and lowest possible active power is critical. |
Compared with ADC101S051QIMFX/NOPB, ADC101S051IMFX trades automotive qualification for cost savings, while ADC101S021QIMFX/NOPB prioritizes ultra-low power at the expense of maximum throughput and dynamic performance-making ADC101S051QIMFX/NOPB optimal for AEC-Q100-compliant, medium-speed precision sensing.
Availability
ADC101S051QIMFX/NOPB is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog modules, and portable medical monitoring devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADC101S051QIMFX/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 company specializing in analog and embedded processing technologies, with leadership in precision data converters and automotive-grade ICs.
The ADC101S051QIMFX/NOPB belongs to TI's precision SAR ADC product line, designed specifically for high-reliability, low-power signal acquisition in automotive, industrial, and medical applications demanding AEC-Q100 compliance and wide temperature operation.
FAQ
What is the operating temperature range for ADC101S051QIMFX/NOPB?
The ADC101S051QIMFX/NOPB is specified for operation from −40°C to +125°C and is AEC-Q100 Grade 1 qualified, making it suitable for under-hood automotive environments and high-temperature industrial enclosures. This extended range is confirmed in the Absolute Maximum Ratings and Operating Ratings sections of the SNAS303I datasheet, distinguishing it from the commercial-grade ADC101S051IMFX variant.
Does ADC101S051QIMFX/NOPB require an external voltage reference?
No, ADC101S051QIMFX/NOPB uses its VA supply pin as the reference source, eliminating the need for an external reference. Its transfer function is ratiometric: LSB = VA / 1024. This simplifies design and reduces cost, though supply noise directly impacts SNR-hence the datasheet mandates tight bypassing (1 µF + 0.1 µF) near the VA pin.
How many clock cycles are required to read a full conversion result from ADC101S051QIMFX/NOPB?
ADC101S051QIMFX/NOPB requires exactly 16 SCLK falling edges to output a complete conversion result: three leading zero bits, ten data bits (MSB first), and two trailing zero bits. The SDATA pin enters tri-state after the 16th falling edge or upon CS rising-whichever occurs first-as defined in the timing diagram (Figure 4) and Applications Information section of the datasheet.
Is ADC101S051QIMFX/NOPB pin-compatible with other devices in the ADC101S family?
Yes, ADC101S051QIMFX/NOPB is fully pin- and function-compatible with all members of the ADC101Sxx family (e.g., ADC101S021, ADC101S101), as confirmed in Table 1 ("Pin Compatible Alternatives") of the SNAS303I datasheet. This allows drop-in replacement across sample-rate variants without PCB changes, provided the selected variant meets the target speed and temperature requirements.
What is the maximum clock frequency supported by ADC101S051QIMFX/NOPB?
The ADC101S051QIMFX/NOPB supports SCLK frequencies from 25 kHz to 20 MHz, with electrical performance fully specified at 4–10 MHz. While functional beyond 10 MHz, parameters such as DNL, SNR, and tACC are only guaranteed within the 4–10 MHz range per the Electrical Characteristics table-thus 10 MHz is the maximum recommended for ensured specifications.
ADC101S051QIMFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- 3-Wire Serial, DSP, Microwire, QSPI, SPI
- 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
ADC101S051QIMFX/NOPB FAQ
1.How can I place an order for ADC101S051QIMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC101S051QIMFX/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 ADC101S051QIMFX/NOPB reliable?
The price and inventory of ADC101S051QIMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC101S051QIMFX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC101S051QIMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC101S051QIMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC101S051QIMFX/NOPB?
ADC101S051QIMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC101S051QIMFX/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 ADC101S051QIMFX/NOPB?
For technical support, including ADC101S051QIMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC101S051QIMFX/NOPB requirements.
6.How does Aetrix verify that ADC101S051QIMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC101S051QIMFX/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 ADC101S051QIMFX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC101S051QIMFX/NOPB?
All ADC101S051QIMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC101S051QIMFX/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 ADC101S051QIMFX/NOPB part is unused and in its original packaging.
Return procedure for ADC101S051QIMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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