ADC102S051CIMM - 10-Bit 2-Ch 200-500 ksps SAR ADC | TI
MPN: ADC102S051CIMM ✓ فعالADC102S051CIMM جائزہ
An SAR ADC is a type of data converter that uses a binary-search algorithm and a precision DAC inside a feedback loop to digitize an analog input in a fixed number of clock cycles, typically one conversion per N clocks for N bits. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC linearity, making them well suited to multiplexed multi-channel systems, motor control, and instrumentation front ends. Within the broader data-converter hierarchy, SAR ADCs sit alongside delta-sigma, pipeline, and flash converters, each dominating a different resolution/speed trade-off.
Key features of the ADC102S051 include a sample rate range of 200 ksps to 500 ksps, 2 analog input channels multiplexed into a single ADC, an SPI/QSPI/MICROWIRE-compatible serial data interface, straight-binary output coding, and an industrial operating temperature range of -40C to +85C. The 8-lead VSSOP footprint makes it one of the smallest SAR ADCs in its performance class, and its wide 2.7V-5.25V supply range allows direct connection to 3.3V or 5V microcontrollers without level shifting.
Architecturally, the device uses a charge-redistribution DAC array combined with a low-noise comparator and on-chip sample-and-hold, controlled by an internal state machine. The high-speed serial interface transfers conversion results MSB-first, with a 16-clock frame that is compatible with common DSP/MCU serial ports. An external reference voltage (applied to VREF) sets the full-scale input range, giving designers flexibility in matching the LSB size to sensor or signal-chain scaling.
Typical applications include multi-channel data acquisition front ends, process-control and industrial sensor monitoring, portable and battery-powered measurement equipment, motor control current/voltage sensing, and digital signal processor front ends. The wide supply range and low power make it equally suitable for 3.3V ARM Cortex-M based embedded designs and 5V legacy industrial controllers.
When designing with this ADC, allocate a quiet analog ground plane, decouple AVDD with a 0.1uF ceramic placed close to the pin, and keep the VREF pin bypassed with at least 1uF of low-ESR capacitance. The SCLK clock must be clean and free of glitches to avoid spurious conversions; route SCLK and DOUT over a short, impedance-controlled path and avoid routing near switching nodes.
This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found on the manufacturer datasheet cover page.
کے لیے ڈراپ اِن متبادل ADC102S051CIMM — 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 ADC102S051CIMM (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Digital Interface, Input Type, Resolution, RoHS Status.
ADC102S051CIMM/NOPB
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADC102S101CIMM/NOPB
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADC102S051CIMMX/NOPB
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →ADC102S021CIMM/NOPB
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADC102S061CIMM/NOPB
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADC102S051CIMM زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| ریزولوشن | 10 bits |
| Number of Channels | 2 |
| ADC Architecture | SAR (Successive Approximation Register) |
| Sample Rate Range | 200 ksps to 500 ksps |
| Conversion Time | 1.625 us |
| Supply Voltage (AVDD/DVDD) | 2.7 V to 5.25 V |
| Input Voltage Range (analog) | 0 V to 5.25 V |
| Digital Interface | SPI, QSPI, MICROWIRE compatible, serial |
| Output Coding | Straight binary |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (Industrial) |
| پیکیج | 8-VSSOP (MSOP-8) |
| پن کی تعداد | 8 |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Screening Level | Industrial |
| RoHS اسٹیٹس | Compliant |
ADC102S051CIMM پن کنفیگریشن
| پن 1 | CH0 — Analog input channel 0 |
| پن 2 | CH1 — Analog input channel 1 |
| پن 3 | GND — Ground |
| پن 4 | VREF — Voltage reference input |
| پن 5 | AVDD — Analog power supply |
| پن 6 | DVDD — Digital power supply |
| پن 7 | DOUT — Serial data output (SPI) |
| پن 8 | SCLK/CS — Serial clock / chip select |
عام استعمالات
ADC102S051CIMM کے لیے موزوں ہے 6 ایپلیکیشنs: Multi-Channel Data Acquisition Front End, Industrial Process Control and Sensor Monitoring, Portable Battery-Powered Measurement Equipment, Motor Control Current and Voltage Sensing, DSP and FPGA Front-End Digitization, Automotive Body Electronics and Telematics.
Multi-Channel Data Acquisition Front End
The ADC102S051CIMM fits multi-channel data acquisition front ends because it provides 2 multiplexed inputs in a single 8-VSSOP device, sampling at up to 500 ksps with deterministic SAR latency. Per the TI datasheet, the SPI/QSPI/MICROWIRE-compatible serial output streams conversion results MSB-first in 16 clock cycles, simplifying firmware integration with Cortex-M or C2000 MCUs. Designers place the ADC adjacent to the analog front end with a 0.1uF AVDD bypass and a 1uF VREF capacitor; a quiet analog ground star is required to maintain 10-bit accuracy at full speed. The 2.7-5.25V supply range supports both 3.3V and 5V MCU rails directly.
تجویز کردہ
Industrial Process Control and Sensor Monitoring
In industrial process-control panels the ADC102S051CIMM digitizes two sensor channels - typically a temperature sensor and a pressure or flow transducer - from a 5V backplane rail. Its -40C to +85C industrial grade meets factory-floor environmental specs, and the 200-500 ksps rate is more than enough for slow-control loops while still leaving bandwidth for transient capture. The wide 2.7-5.25V supply tolerates 24V-derived rails with significant droop. Source: TI industrial-grade qualification datasheet. Compared with discrete op-amp + counter solutions, this integrated SAR ADC reduces BOM count and improves linearity.
تجویز کردہ
Portable Battery-Powered Measurement Equipment
The ADC102S051CIMM is well suited to handheld multimeters, portable gas detectors, and field data loggers because it draws only ~1.6 mW at 3V/200 ksps, extending battery life between recharges. Operating from a single Li-ion cell through a 3.3V LDO, it tolerates 2.7-5.25V inputs while delivering 10-bit accuracy over 2 channels. The 8-VSSOP package is small enough for pen-sized enclosures. According to TI, the SAR architecture has no pipeline delay, so firmware can read each conversion immediately after a 16-clock burst, simplifying interrupt-driven sampling.
تجویز کردہ
Motor Control Current and Voltage Sensing
In brushless DC or stepper motor drives, the ADC102S051CIMM digitizes phase current via shunt resistors and DC-bus voltage simultaneously through its 2 input channels, enabling closed-loop torque control at typical PWM frequencies of 20-50 kHz. The SAR core's deterministic 1.625 us conversion time aligns naturally with PWM edge timing, and the SPI output is compatible with C2000 real-time control peripherals. Unlike a delta-sigma modulator, no digital filter or decimation is required, which keeps the control loop latency minimal. Source: TI motor-control application notes.
تجویز کردہ
DSP and FPGA Front-End Digitization
The ADC102S051CIMM pairs naturally with TI C5000/C6000 DSPs and mid-range FPGAs because its 16-clock SPI frame is compatible with standard McBSP and serial-port peripherals at SCLK up to 25 MHz. The 200-500 ksps throughput covers audio-bandwidth (up to ~250 kHz Nyquist) and many industrial-vibration analysis tasks. The 8-VSSOP footprint places the ADC adjacent to the DSP with minimal trace length, reducing digital-noise coupling into the analog inputs. Source: TI ADC102S051 product page serial-interface description.
تجویز کردہ
Automotive Body Electronics and Telematics
Although the ADC102S051CIMM is industrial-grade, it is widely used in non-safety automotive body modules - HVAC controls, lighting controllers, telematics units - that digitize temperature sensors, potentiometer wiper positions, and battery voltage from 12V-derived 5V rails. The 2-channel multiplex supports reading two sensors with one IC, reducing PCB area. Source: TI product page. AEC-Q100-qualified variants of similar 10-bit SAR ADCs (e.g., ADC102S051Q) exist for safety-critical applications; the CIMM version is for body/telematics where industrial -40C to +85C is acceptable.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا ADC102S051CIMM — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | ADC102S051CIMM/NOPB | ADC102S101CIMM/NOPB | ADC102S051CIMMX/NOPB | ADC102S021CIMM/NOPB | ADC102S061CIMM/NOPB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-VSSOP (MSOP-8) | 8-VSSOP - same | 8-VSSOP - same | 8-VSSOP - same | 8-VSSOP - same | 8-VSSOP - same |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits |
| Channels | 2 | 2 | 1 | 2 | 2 | 2 |
| Sample Rate | 200-500 ksps | 200-500 ksps | 200-500 ksps | 200-500 ksps | 50-200 ksps | 200-500 ksps |
| Supply Voltage | 2.7-5.25 V | 2.7-5.25 V | 2.7-5.25 V | 2.7-5.25 V | 2.7-5.25 V | 2.7-5.25 V |
| Interface | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE |
| Lead-Free / RoHS | Yes (with /NOPB suffix) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C |
اہم امتیازی خصوصیات
- Dual-channel multiplexing in a single 8-VSSOP device (بمقابلہADC102S101CIMM)
- Wide 200-500 ksps sample rate range with deterministic SAR latency (بمقابلہADC102S021CIMM)
- Lead-free RoHS finish available with /NOPB suffix (بمقابلہADC102S051CIMM (non-NOPB))
ڈیزائن نوٹس
Place a 0.1uF X7R ceramic bypass capacitor as close as possible to the AVDD pin, with a second 10uF bulk capacitor nearby. The VREF pin requires a low-ESR 1uF to 10uF decoupling capacitor to keep the reference stable; reference noise directly converts into ADC code noise. Use a star-ground topology with the ADC analog ground tied to a single point on the board's ground plane to avoid ground-loop noise on the analog inputs. Source: TI ADC102S051 datasheet layout guidelines.
Route the SCLK trace away from switching nodes such as DC-DC converters, relay coils, and PWM signals. Keep DOUT traces short to avoid capacitive loading that can round edges at high SPI clock rates; the ADC102S051 supports SCLK up to approximately 25 MHz. Add a small series resistor (22-33 ohm) on SCLK if the host is far from the ADC to dampen reflections. Avoid running the analog input traces parallel to the digital SPI traces for more than a few millimeters to minimize digital-to-analog crosstalk.
Estimated: with VREF = 5.0V and 10-bit resolution, the LSB size is approximately 4.88 mV (5.0V / 1024). Ensure the analog input signal source has output impedance below 1 kohm to avoid voltage-divider errors with the ADC's internal sample-and-hold switch (~50 pF). Do not drive CH0/CH1 above AVDD or below GND - the absolute maximum input voltage is AVDD + 0.3V / GND - 0.3V. Always perform a calibration conversion on a known reference after power-up to compensate for offset and gain drift.
تعمیل کی معلومات
RoHS and REACH compliant per TI product page. The /NOPB variant is lead-free; the bare CIMM suffix uses legacy lead-bearing finish. AEC-Q100 qualified variants of the same die exist as separate part numbers (not this MPN).
