ADC101S101CISDX/NOPB - 10-Bit 1MSPS SAR ADC, 6-WSON | Texas Instruments
MPN: ADC101S101CISDX/NOPB ✓ فعالADC101S101CISDX/NOPB جائزہ
A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal precision DAC to digitize an input voltage. Unlike delta-sigma ADCs, SAR converters deliver a single conversion per request with no latency pipeline, making them well-suited to multiplexed control loops and event-driven sampling. The SAR family sits under the broader hierarchy of Nyquist-rate data converters (SAR and pipeline ADCs), which in turn fall under the data-converter category of mixed-signal ICs in power and signal-chain systems.
Key features include 10-bit resolution, true-differential or single-ended input (driven through VIN), SPI/QSPI/MICROWIRE/DSP-compatible serial interface (SCLK, DOUT, CS), an on-chip sample-and-hold that eliminates external buffer requirements, and a wide input range from 0 V to VDD. Industrial temperature grade of -40 C to +85 C enables deployment in factory and outdoor enclosures without derating.
The internal architecture combines a charge-redistribution DAC, a high-bandwidth comparator, and a successive-approximation register clocked from SCLK. Because conversion is gated by SCLK rather than an internal oscillator, designers can synchronize acquisitions to a deterministic timer, simplifying isolation of noise from motors or switching regulators. The exposed pad lowers thermal resistance for continuous high-duty-cycle sampling.
Typical applications include industrial process-control sensor read-out (thermocouple, RTD, strain-gauge bridges), portable instrumentation and battery-powered data loggers, motor-control current/voltage feedback, and consumer audio front-end or metering. The small 6-WSON footprint suits space-constrained designs where multiple ADC channels are needed on a single board.
When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the VDD pin and tie the exposed pad (pin 6 / DAP) to a clean analog ground. Drive CS low before each conversion, supply at least 16 SCLK cycles per conversion (14 for data plus 2 for the front-end settle), and ensure the source impedance seen by VIN is below a few hundred ohms to avoid gain errors.
This page synthesizes distributor pricing, drop-in alternatives in the same 6-WSON footprint, and practical design notes that are not collected together in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل ADC101S101CISDX/NOPB — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں ADC101S101CISDX/NOPB (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Resolution, Architecture, Operating Temperature, Power Consumption (3.6 V).
ADC101S101CISD/NOPB
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADC101S021CISDX
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADC081S051CISDX/NOPB
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADC101S021CIMFX
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →AD7476AAKSZ-REEL
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADC101S101CISDX/NOPB زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| ریزولوشن | 10 bit |
| Number of Channels | 1 |
| Architecture | SAR (Successive Approximation Register) |
| Sample Rate | 0.5 MSPS to 1 MSPS |
| Input Type | Single-ended |
| Analog Input Voltage Range | 0 V to VDD |
| Supply Voltage (VDD) | 2.7 V to 5.25 V |
| Data Interface | SPI, QSPI, MICROWIRE, DSP-compatible serial |
| پیکیج / کیس | 6-WSON (2.2 x 2.5 mm) with exposed pad |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (Industrial) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Packaging | Tape & Reel (4500 pcs/reel) |
| Lead Finish | Pb-free (NOPB) |
| RoHS اسٹیٹس | Compliant |
ADC101S101CISDX/NOPB پن کنفیگریشن
| پن 1 | VIN — Analog input (single-ended, 0 V to VDD) |
| پن 2 | GND — Ground reference |
| پن 3 | VDD — Power supply (2.7 V to 5.25 V) |
| پن 4 | DOUT — Serial data output (SPI MISO) |
| پن 5 | SCLK — Serial clock input |
| پن 6 | CS — Chip select (active low) |
عام استعمالات
ADC101S101CISDX/NOPB کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Process-Control Sensor Read-Out, Portable Battery-Powered Data Loggers, Motor Control Current and Voltage Feedback, Consumer Audio Front-End and Metering, Medical Device Signal Acquisition, Sensor Module and IoT Edge Devices.
Industrial Process-Control Sensor Read-Out
The ADC101S101CISDX/NOPB fits industrial process-control read-out because its 1 MSPS SAR throughput and 10-bit resolution provide deterministic low-latency digitization for closed-loop control. The 2.7 V to 5.25 V supply interfaces directly to 3.3 V and 5 V PLC backplanes, while the -40 C to +85 C industrial temperature grade tolerates factory-floor thermal swings. With 0 V to VDD input range the part digitizes thermocouple, RTD, and 4-20 mA current-loop signals after a single op-amp gain stage. The SAR architecture avoids the latency of delta-sigma converters, so each sample is available within a single SPI frame for deterministic control-loop timing.
تجویز کردہ
Portable Battery-Powered Data Loggers
The ADC101S101CISDX/NOPB suits battery-powered data loggers thanks to its low supply current and wide 2.7 V to 5.25 V operating range that works directly from a single Li-ion cell (3.0-4.2 V). The 6-WSON (2.2 x 2.5 mm) footprint saves board area in handheld enclosures, and the SPI interface lets a low-power MCU wake only for conversions, putting the ADC back into high-impedance between samples. With 1 MSPS available, designers can over-sample slower signals to trade noise for power, averaging readings in firmware to extend battery life. Industrial temperature grade supports outdoor and vehicle-mounted logging deployments.
تجویز کردہ
Motor Control Current and Voltage Feedback
For motor-control current and voltage feedback the ADC101S101CISDX/NOPB delivers deterministic SAR conversion timing that aligns to PWM switching periods without the pipeline delay of pipeline ADCs. Its 10-bit resolution is sufficient for current sensing on a shunt resistor in the low-side or high-side path when paired with a current-sense amplifier, and the 1 MSPS sample rate captures peak currents in FOC (field-oriented-control) loops running at 20 kHz PWM with up to 25 samples per electrical cycle. The 6-WSON footprint fits compact integrated power modules where every square millimeter of board counts.
تجویز کردہ
Consumer Audio Front-End and Metering
The ADC101S101CISDX/NOPB is used in consumer audio front-ends and metering equipment where 10-bit resolution is adequate for VU-metering, peak detection, and simple level-sensing paths. Its SPI output feeds directly into DSP and microcontroller audio engines, while the small 6-WSON footprint enables multi-channel audio meter bars on a single PCB. With 0 V to VDD analog input range the part digitizes line-level audio after AC coupling and biasing, and the deterministic conversion timing aligns to audio frame rates for jitter-free level display.
تجویز کردہ
Medical Device Signal Acquisition
Medical device signal acquisition benefits from the ADC101S101CISDX/NOPB's deterministic SAR conversion and 10-bit resolution for low-frequency bio-signal paths such as body-temperature, galvanic-skin-response, and pulse-oximeter photodiode current read-out. The 2.7 V to 5.25 V supply works with battery-powered portable designs and regulated medical-grade rails. SPI compatibility lets the part integrate with low-power medical MCUs while the 6-WSON footprint supports miniaturized wearable designs. Note: medical safety certification (IEC 60601) requires system-level qualification that this component alone does not provide.
تجویز کردہ
Sensor Module and IoT Edge Devices
IoT edge devices and sensor modules leverage the ADC101S101CISDX/NOPB for digitizing analog sensor outputs at the network edge, where board area and power budget dominate. The 6-WSON (2.2 x 2.5 mm) package fits inside miniature sensor pods, while the 2.7 V to 5.25 V supply works with coin-cell boost outputs and 3.3 V system-on-chip rails. SPI output connects to common IoT radios and Wi-Fi/BLE modules, and the industrial temperature grade handles outdoor and industrial deployments. With 1 MSPS available the ADC supports both continuous sampling and event-triggered burst sampling for power-saving duty-cycled operation.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ADC101S101CISDX/NOPB — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ADC101S101CISD/NOPB | ADC101S021CISDX | ADC081S051CISDX/NOPB | ADC101S021CIMFX | AD7476AAKSZ-REEL |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | 6-WSON (2.2x2.5) | 6-WSON (2.2x2.5) - same | 6-WSON (2.2x2.5) - same | 6-WSON (2.2x2.5) - same | 6-WSON (2.2x2.5) - same | 6-WSON (2.2x2.5) class - same |
| Resolution | 10 bit | 10 bit | 10 bit | 8 bit | 10 bit | 12 bit |
| Max Sample Rate | 1 MSPS | 1 MSPS | 200 kSPS | 500 kSPS | 200 kSPS | 1 MSPS |
| Supply Voltage | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V |
| Serial Interface | SPI / QSPI / MICROWIRE / DSP | SPI / QSPI / MICROWIRE / DSP | SPI / QSPI / MICROWIRE / DSP | SPI / QSPI / MICROWIRE / DSP | SPI / QSPI / MICROWIRE / DSP | SPI-compatible serial |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| RoHS / Lead-Free | Pb-free (NOPB), RoHS compliant | Pb-free (NOPB), RoHS compliant | Pb-free, RoHS compliant | Pb-free (NOPB), RoHS compliant | Pb-free, RoHS compliant | Pb-free (REEL), RoHS compliant |
| Approx. Unit Price (qty-1000, USD) | 1.51 | 1.48 | 1.40 | 1.20 | 1.42 | 3.10 |
اہم امتیازی خصوصیات
- Full 0.5-1 MSPS specification range (بمقابلہADC081S051CISDX/NOPB)
- 10-bit resolution upgrade path on same footprint (بمقابلہADC081S051CISDX/NOPB)
- Wide 2.7-5.25 V supply supports 3.3 V and 5 V systems (بمقابلہAD7476AAKSZ-REEL)
- Pb-free /NOPB termination for modern assembly (بمقابلہADC101S021CIMFX)
ڈیزائن نوٹس
Place a 0.1 uF ceramic decoupling capacitor within 2-3 mm of the VDD pin and tie the exposed thermal pad to a clean analog ground plane with multiple vias. Keep digital traces (SCLK, DOUT, CS) routed away from the VIN trace to avoid digital-to-analog crosstalk. The analog ground and digital ground should connect at a single point near the ADC's GND pin to prevent ground-loop noise from corrupting the sample.
Source impedance seen at VIN should remain below a few hundred ohms during acquisition to avoid gain error and distortion. If driving from a higher-impedance sensor, buffer with a low-offset op-amp such as the OPA333. Keep VIN trace short and guard-ring it with analog ground to minimize leakage and noise pickup. The internal sample-and-hold requires the input to settle within the acquisition window before CS falls.
Common pitfalls: (1) omitting the CS falling-edge guard time before clocking SCLK - the part requires a brief acquisition window after CS goes low; (2) reading fewer than 16 SCLK cycles per conversion, which leaves incomplete data and can leave the ADC in an indeterminate state; (3) failing to solder the exposed thermal pad, which raises junction temperature and degrades accuracy; (4) using a single shared ground plane under a noisy switching regulator, which couples digital noise into the analog input - separate analog and digital ground islands joined at one point.
Estimated: at 1 MSPS continuous sampling with VDD = 5 V, the ADC101S101CISDX/NOPB draws roughly 4-6 mA, dissipating about 25 mW. For battery-powered designs, duty-cycle the conversions: take a burst of N samples then idle. Quiescent current drops to microamp levels when CS is held high, so power scaling is roughly linear with sampling duty cycle. Add a bulk 1 uF capacitor near VDD if the supply impedance is above 1 ohm at high frequency.
تعمیل کی معلومات
RoHS and REACH compliant per TI product page; /NOPB suffix confirms lead-free matte-tin finish. Not AEC-Q100 qualified (consumer/industrial grade only). Halogen-free status not explicitly stated in the verified web data.
