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Texas Instruments ADC108S102CIMTX/NOPB
- Part No.:
- ADC108S102CIMTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADC108S102CIMTX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,451
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Product details
Overview
ADC108S102CIMTX/NOPB from Texas Instruments is a low-power, 8-channel, 10-bit successive-approximation ADC with 500 kSPS to 1 MSPS throughput, independent analog (VA: +2.7V to +5.25V) and digital (VD: +2.7V to VA) supplies, and SPI/QSPI/MICROWIRE-compatible serial interface. It operates across −40°C to +105°C and is used in portable medical instrumentation for multi-sensor analog signal digitization.
For engineers reviewing the ADC108S102CIMTX/NOPB datasheet, ADC108S102CIMTX/NOPB pinout, ADC108S102CIMTX/NOPB application, or ADC108S102CIMTX/NOPB equivalent, key selection criteria include channel count, 10-bit resolution with ±0.5 LSB INL/DNL, 3–5 V dual-supply flexibility, TSSOP-16 package compatibility, and SPI timing compliance at 8–16 MHz clock rates.
Technical Context
The ADC108S102CIMTX/NOPB implements a charge-redistribution DAC-based successive-approximation architecture with integrated track-and-hold. It acquires input voltage over 3 SCLK cycles (track mode), then performs conversion and serial output over 13 SCLK cycles (hold/convert mode), delivering 10-bit straight-binary data MSB-first on DOUT.
Channel selection is controlled via an 8-bit DIN-loaded register specifying ADD2:ADD0 bits (IN0–IN7), while CS initiates frame-based operation. Analog inputs (IN0–IN7) accept 0 V to VA signals; internal reference is VA, eliminating external reference components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes - guarantees monotonicity and full code coverage for precision sensor interfacing. |
| Sample Rate | 500 kSPS to 1 MSPS - supports real-time sampling of biomedical waveforms (ECG, pulse oximetry) and industrial control feedback loops. |
| INL / DNL | ±0.5 LSB max (at VA = VD = 5.0 V) - ensures <0.05% linearity error for calibrated measurement systems. |
| Power Consumption | 9.4 mW typ at 5 V / 1 MSPS; 0.30 µW in shutdown - enables battery-powered portable diagnostics with extended runtime. |
| Supply Range | VA: +2.7V to +5.25V; VD: +2.7V to VA - allows coexistence with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Full Power BW | 8 MHz - supports accurate digitization of signals up to ~1.2 MHz (Nyquist-limited), suitable for ultrasound preamp outputs. |
| Channel Isolation | 79.7 dB at 20 kHz - minimizes crosstalk between adjacent channels during simultaneous multi-sensor acquisition. |
Pinout & Package
Packaged in a 16-lead TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), the ADC108S102CIMTX/NOPB features separate analog/digital ground and supply pins for noise isolation, plus dedicated serial interface lines compatible with standard SPI controllers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Falling edge initiates conversion frame; high state places DOUT in high-impedance mode for bus sharing. |
| SCLK | Serial Clock | 8–16 MHz master clock controlling both conversion timing and serial data transfer synchronization. |
| DIN | Digital Input | Loads 8-bit control register on first 8 rising SCLK edges to select next input channel (IN0–IN7). |
| DOUT | Digital Output | MSB-first 10-bit result + 6 framing bits clocked out on falling SCLK edges; tri-state when CS high. |
| VA | Analog Supply | +2.7V to +5.25V; serves as ADC reference voltage-requires local 1 µF + 0.1 µF bypassing for noise immunity. |
| VD | Digital Supply | +2.7V to VA; powers logic core and DOUT driver-bypassed with 0.1 µF capacitor near pin. |
| AGND / DGND | Analog / Digital Ground | Separate return paths prevent digital switching noise from corrupting analog conversion accuracy. |
| IN0–IN7 | Analog Inputs | Eight single-ended inputs referenced to AGND; each accepts 0 V to VA with 3 pF input capacitance in hold mode. |
Key Features
| Feature | Design Value |
|---|---|
| Independent VA/VD supplies | Enables mixed-voltage system integration-e.g., 3.3 V MCU with 5 V analog sensors-without level-shifting circuitry. |
| SPI/QSPI/MICROWIRE compatibility | Direct interface to TI C2000, STM32, and NXP Kinetis MCUs using standard peripheral drivers-no custom firmware required. |
| Variable power management | Hardware-controlled shutdown (via CS high) reduces current to 60 nA at 5 V-ideal for wake-on-event sensor hubs. |
| Extended temperature range | −40°C to +105°C operation certified per industrial specifications-suitable for under-hood automotive navigation sensors. |
| On-chip track-and-hold | Eliminates need for external sample-hold amplifier; 3-cycle acquisition time supports high-frequency multiplexed sampling. |
Applications
| Portable ECG Monitor | Automotive Cabin Air Quality Sensor Hub |
|---|---|
|
Use Scenario: Simultaneous acquisition of lead-I, lead-II, and respiratory impedance signals in handheld cardiac screening devices. IC Role / Device Role / Timing Role: 10-bit ADC digitizing eight analog sensor outputs at 1 MSPS with channel-to-channel isolation >79 dB. Use Value: Enables compact, battery-operated design with <9.4 mW active power and no external reference or op-amp buffering required. |
Use Scenario: Multi-gas sensing (CO₂, VOC, humidity) in vehicle HVAC control modules requiring robust operation at 105°C ambient. IC Role / Device Role / Timing Role: Industrial-grade 8-channel ADC performing synchronized sampling across temperature-varying analog front-ends. Use Value: Guaranteed −40°C to +105°C functionality and 0.30 µW shutdown power extend service life in thermally stressed automotive environments. |
| Handheld Ultrasound Probe Interface | Industrial Motor Current Monitoring System |
|
Use Scenario: Digitizing amplified echo return signals from piezoelectric transducers in point-of-care ultrasound units. IC Role / Device Role / Timing Role: High-fidelity 10-bit converter with 8 MHz full-power bandwidth capturing transient RF envelope signals. Use Value: Straight-binary output and SPI timing compliance simplify FPGA-based beamforming logic integration. |
Use Scenario: Real-time phase current sampling across three motor windings plus auxiliary temperature and voltage rails in servo drives. IC Role / Device Role / Timing Role: Precision 8-channel ADC providing synchronized samples for field-oriented control (FOC) algorithms. Use Value: ±0.5 LSB INL ensures <0.05% gain error across all channels-critical for torque ripple minimization in closed-loop systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel, 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953SRHBT | 12-bit resolution, 1 MSPS, same TSSOP-32 package but larger footprint; requires external reference and higher supply current (12 mW). | Better resolution for high-accuracy industrial DAQ; unsuitable for space-constrained portable designs due to 5 mm × 5 mm size. | Select ADS7953SRHBT only if 12-bit precision is mandatory and PCB area permits larger package. |
| MAX11100ETE+ | 10-bit, 1 MSPS, 16-pin TQFN (3 mm × 3 mm); uses internal reference only (no VA-as-VREF flexibility); lower INL (±0.3 LSB). | Smaller footprint ideal for wearables; lacks dual-supply independence-requires matched 3.3 V analog/digital rails. | Choose MAX11100ETE+ for ultra-compact designs where supply rail uniformity is guaranteed and board space is critical. |
Compared with ADS7953SRHBT and MAX11100ETE+, the ADC108S102CIMTX/NOPB uniquely balances 10-bit accuracy, dual-supply flexibility, TSSOP-16 compatibility, and sub-10 mW power-making it optimal for cost-sensitive, thermally demanding portable instrumentation where VA-as-reference simplifies BOM and layout.
Availability
ADC108S102CIMTX/NOPB is available at Aetrix Electronics and suitable for portable medical instruments, automotive cabin sensor networks, industrial motor monitoring systems, and handheld test equipment requiring stable component supply across extended temperature ranges.
Supply support for ADC108S102CIMTX/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 and embedded processing technologies, with decades of expertise in precision data converters and industrial-grade ICs.
The ADC108S102CIMTX/NOPB belongs to TI's precision SAR ADC product line, engineered for low-power, multi-channel sensor signal acquisition in portable, automotive, and industrial applications where reliability across temperature extremes is essential.
FAQ
What is the maximum clock frequency supported by ADC108S102CIMTX/NOPB?
The ADC108S102CIMTX/NOPB supports a maximum SCLK frequency of 16 MHz, as specified in its absolute maximum ratings and AC electrical characteristics. Operation above this frequency risks timing violation and conversion errors. At 16 MHz, the device achieves its rated 1 MSPS throughput with 16 SCLK cycles per conversion frame.
Does ADC108S102CIMTX/NOPB require an external voltage reference?
No, ADC108S102CIMTX/NOPB does not require an external voltage reference. Its analog supply voltage (VA) serves as the internal reference, with full-scale range defined as 0 V to VA. This eliminates external reference components and associated layout complexity, provided VA is adequately bypassed and noise-clean.
How many analog input channels does ADC108S102CIMTX/NOPB support?
The ADC108S102CIMTX/NOPB supports exactly eight single-ended analog input channels: IN0 through IN7. Channel selection is controlled via the ADD2–ADD0 bits in the 8-bit control register loaded on DIN, allowing flexible sequencing or static assignment per conversion frame.
What is the power consumption of ADC108S102CIMTX/NOPB at 3 V supply and 1 MSPS?
At VA = VD = +3.0 V and 1 MSPS sample rate, the ADC108S102CIMTX/NOPB consumes 2.1 mW typical (4.2 mW max), as confirmed in the Electrical Characteristics table. In shutdown mode (CS high), power drops to 0.09 µW-enabling ultra-low-power wake-on-event architectures.
Is ADC108S102CIMTX/NOPB compatible with standard SPI interfaces?
Yes, ADC108S102CIMTX/NOPB is fully compatible with SPI, QSPI, MICROWIRE, and common DSP serial interfaces. It uses standard four-wire protocol (CS, SCLK, DIN, DOUT), MSB-first straight-binary output, and timing aligned to SCLK falling edges for data capture-requiring no protocol translation.
ADC108S102CIMTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-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 ~ 105°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC108S102CIMTX/NOPB FAQ
1.How can I place an order for ADC108S102CIMTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC108S102CIMTX/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 ADC108S102CIMTX/NOPB reliable?
The price and inventory of ADC108S102CIMTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC108S102CIMTX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC108S102CIMTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC108S102CIMTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC108S102CIMTX/NOPB?
ADC108S102CIMTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC108S102CIMTX/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 ADC108S102CIMTX/NOPB?
For technical support, including ADC108S102CIMTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC108S102CIMTX/NOPB requirements.
6.How does Aetrix verify that ADC108S102CIMTX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC108S102CIMTX/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 ADC108S102CIMTX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC108S102CIMTX/NOPB?
All ADC108S102CIMTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC108S102CIMTX/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 ADC108S102CIMTX/NOPB part is unused and in its original packaging.
Return procedure for ADC108S102CIMTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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