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Texas Instruments ADC128S052CIMT/NOPB
- Part No.:
- ADC128S052CIMT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADC128S052CIMT/NOPB.pdf
- Description:
- IC ADC 12BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:311
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Product details
Overview
ADC128S052CIMT/NOPB from Texas Instruments is a 12-bit, 8-channel successive-approximation ADC with 200–500 kSPS throughput, independent analog (VA) and digital (VD) supplies (2.7–5.25 V), SPI-compatible serial interface, and operation over −40°C to +105°C. It serves as a precision analog front-end for sensor signal digitization in embedded control systems.
For engineers reviewing the ADC128S052CIMT/NOPB datasheet, ADC128S052CIMT/NOPB pinout, ADC128S052CIMT/NOPB application, or ADC128S052CIMT/NOPB equivalent, key selection criteria include channel count, SPI timing compliance (3.2–8 MHz SCLK), low-power shutdown mode (0.06 µW @ 3 V), DNL/INL performance (±1.3/±1 LSB max), and TSSOP-16 package compatibility with industrial temperature requirements.
Technical Context
The ADC128S052CIMT/NOPB implements a charge-redistribution SAR architecture with integrated track-and-hold, enabling full 12-bit resolution without external calibration. Its functional modes-continuous and burst-are controlled via CS, with automatic power-down between conversions in continuous mode.
It uses VA as both analog supply and reference voltage, while VD operates independently (2.7 V to VA), supporting mixed-supply system integration. Serial communication follows 4-wire SPI protocol (CS, SCLK, DIN, DOUT), with MSB-first 16-cycle frames containing 4 leading zeros followed by 12-bit straight-binary data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes; delivers 4096 discrete output levels for high-fidelity sensor digitization. |
| Sampling Rate | 200–500 kSPS; supports real-time monitoring of fast-changing analog signals such as motor current or battery voltage transients. |
| INL / DNL | ±1 LSB / +1.3/−0.9 LSB max (at VA = VD = 5 V); ensures monotonicity and accurate end-point linearity in closed-loop control feedback paths. |
| Power Consumption | 1.6 mW typical @ 3 V / 8.7 mW @ 5 V in normal mode; drops to 0.06 µW @ 3 V in shutdown-critical for battery-powered portable instrumentation. |
| Analog Input Range | 0 V to VA; eliminates need for external level-shifting when VA is set to system rail (e.g., 3.3 V or 5 V). |
| SPI Clock Range | 3.2–8 MHz SCLK; compatible with standard MCU SPI peripherals without requiring custom clock dividers or oversampling. |
| Operating Temperature | −40°C to +105°C; qualified for extended industrial environments including automotive cabin electronics and industrial PLC I/O modules. |
Pinout & Package
ADC128S052CIMT/NOPB is housed in a 16-pin TSSOP package (4.40 mm × 5.00 mm body size) with exposed pad not electrically connected. Pin functions are validated per TI SNAS333E Rev E datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Digital input | Active-low chip select initiating conversion sequence and framing SPI data; enables multi-device bus sharing. |
| SCLK | Digital input | Serial clock (3.2–8 MHz) synchronizing both acquisition (first 3 cycles) and conversion/data output (next 13 cycles). |
| DIN | Digital input | Loads 3-bit channel address (ADD2–ADD0) during first 8 SCLK rising edges after CS fall-supports dynamic input selection. |
| DOUT | Digital output | MSB-first 12-bit result clocked out on SCLK falling edges 5–16; high-impedance when CS is high for bus isolation. |
| VA | Analog supply | 2.7–5.25 V analog rail serving as ADC reference; requires local 1-µF + 0.1-µF bypassing for noise-sensitive precision applications. |
| VD | Digital supply | 2.7 V to VA digital rail; decoupled with 0.1-µF capacitor-enables independent noise domain partitioning from analog section. |
| AGND / DGND | Analog/digital ground | Separate ground returns minimize digital switching noise coupling into analog conversion path; recommended star grounding at single point. |
| IN0–IN7 | Analog inputs | Eight single-ended channels accepting 0–VA range; internally multiplexed-ideal for multi-sensor monitoring without external MUX. |
Key Features
| Feature | Design Value |
|---|---|
| Independent VA and VD supplies | Enables flexible system-level power architecture-e.g., VA = 3.3 V for sensor interface, VD = 1.8 V for low-noise digital logic interfacing. |
| Low-power shutdown mode | Reduces current draw to 20 nA @ 3 V, allowing microcontroller-gated sampling in energy-constrained IoT edge nodes. |
| Channel-to-channel isolation | 81 dB at 20 kHz prevents crosstalk between adjacent inputs-critical for simultaneous multi-channel thermocouple or strain gauge measurements. |
| Straight binary output coding | Eliminates software offset correction; simplifies firmware integration with standard integer math and direct DAC reconstruction paths. |
| Track-and-hold integrated | Acquires input in first 3 SCLK cycles-no external sample-hold circuit required, reducing BOM count and board area in space-limited designs. |
Applications
| Automotive Navigation Systems | Portable Medical Instruments |
|---|---|
Use Scenario: Digitizing analog outputs from GPS antenna signal strength indicators, inertial measurement unit (IMU) accelerometers, and vehicle speed sensors in compact navigation ECUs. IC Role / Device Role / Timing Role: 8-channel SAR ADC performing synchronized sampling of multiple analog sensor signals with deterministic 16-cycle SPI frame timing. Use Value: Enables single-chip acquisition of up to eight critical vehicle dynamics parameters without external multiplexing or timing arbitration logic. |
Use Scenario: Capturing biopotential signals (ECG, EMG) and environmental sensor data (temperature, humidity) in handheld diagnostic devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power, high-linearity ADC providing 12-bit resolution for clinical-grade waveform fidelity while minimizing active time via CS-controlled burst sampling. Use Value: Extends battery life beyond 100 hours through sub-µW shutdown state and reduces PCB footprint versus discrete ADC + LDO + MUX solutions. |
| Industrial Process Controllers | Smart Energy Meters |
Use Scenario: Monitoring analog process variables-including pressure transducers, RTD bridges, and 4–20 mA loop receivers-in distributed I/O modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Precision ADC with ±1 LSB INL ensuring accurate scaling of sensor outputs to engineering units across −40°C to +105°C ambient range. Use Value: Eliminates need for periodic field recalibration due to guaranteed linearity and thermal stability over full industrial temperature range. |
Use Scenario: Sampling voltage and current transformer outputs for real-time power quality analysis and tariff calculation in residential/utility smart meters. IC Role / Device Role / Timing Role: Simultaneous dual-channel sampling capability (via sequential IN0–IN7 access) supporting voltage/current phase alignment in polyphase metering. Use Value: Meets IEC 62053-22 Class 0.5 accuracy requirements using internal reference derived from VA, avoiding external precision voltage reference ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, multi-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 16-channel, SPI interface; higher max throughput (1 MSPS); requires external reference; 32-pin QFN vs TSSOP-16. | Supports larger sensor arrays but demands more PCB area and external ref design; lacks integrated VA-as-VREF simplicity. | Choose ADS7953IRHBT when >8 channels or >500 kSPS is required; avoid if board space or reference simplicity is constrained. |
| AD7476ARTZ-REEL7 | 12-bit, single-channel, SPI; 1 MSPS max; no internal MUX; 6-pin SOT-23 package; requires external reference and separate power domains. | Not suitable for multi-sensor systems without external multiplexer; simpler for point-measurement use cases only. | Choose AD7476ARTZ-REEL7 only for single-input, ultra-compact applications where channel count and integrated MUX are unnecessary. |
Compared with ADS7953IRHBT and AD7476ARTZ-REEL7, ADC128S052CIMT/NOPB uniquely combines 8-channel integration, VA-as-reference simplicity, TSSOP-16 compactness, and guaranteed −40°C to +105°C operation-making it optimal for cost- and space-sensitive industrial and automotive sensor hubs.
Availability
ADC128S052CIMT/NOPB is available at Aetrix Electronics and suitable for automotive navigation systems, portable medical instruments, industrial process controllers, smart energy meters, and instrumentation requiring stable component supply across extended temperature ranges.
Supply support for ADC128S052CIMT/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 IC design.
ADC128S052CIMT/NOPB belongs to TI's precision SAR ADC product line, engineered for reliable multi-channel analog sensing in demanding industrial, automotive, and portable applications where accuracy, low power, and temperature robustness are essential.
FAQ
What is the maximum sampling rate supported by the ADC128S052CIMT/NOPB?
The ADC128S052CIMT/NOPB supports a maximum sampling rate of 500 kSPS under specified conditions (VA = VD = 5 V, fSCLK = 8 MHz). At lower clock frequencies or supply voltages, the achievable rate scales down-minimum guaranteed rate is 200 kSPS across the full operating temperature range. This throughput enables real-time capture of signals up to ~80 kHz bandwidth (per Nyquist criterion) without aliasing.
Does the ADC128S052CIMT/NOPB require an external voltage reference?
No, the ADC128S052CIMT/NOPB does not require an external voltage reference. Its VA pin serves as both the analog supply and the internal reference voltage (VREF = VA), simplifying system design and reducing component count. The input range is fixed at 0 V to VA, and VA may be set between 2.7 V and 5.25 V-making ADC128S052CIMT/NOPB self-referenced and compatible with common system rails.
How is channel selection implemented on the ADC128S052CIMT/NOPB?
Channel selection on the ADC128S052CIMT/NOPB is performed via a 3-bit address (ADD2–ADD0) loaded into the control register through the DIN pin during the first 8 rising edges of SCLK after CS falls. Valid addresses 000–111 correspond directly to IN0–IN7. The device samples the selected channel in the subsequent conversion cycle, enabling dynamic, software-controlled input routing without external hardware.
What power-saving features does the ADC128S052CIMT/NOPB offer?
The ADC128S052CIMT/NOPB offers hardware-driven power management: asserting CS high places the device in shutdown mode, reducing supply current to 20 nA @ 3 V (0.06 µW). In continuous conversion mode, it automatically powers down between conversions. These features allow precise duty-cycled operation-e.g., waking every 10 ms to sample three channels-extending battery life in portable applications while maintaining timing determinism.
Is the ADC128S052CIMT/NOPB compatible with standard microcontroller SPI peripherals?
Yes, the ADC128S052CIMT/NOPB is fully compatible with standard 4-wire SPI interfaces (CS, SCLK, DIN, DOUT) and supports SPI, QSPI, and MICROWIRE protocols. It uses MSB-first straight-binary output, requires no configuration registers, and operates with SCLK frequencies from 3.2 MHz to 8 MHz-aligning with common MCU SPI clock dividers. No special mode bits or initialization sequences are needed for basic operation.
ADC128S052CIMT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 500k
- 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:
- -
ADC128S052CIMT/NOPB FAQ
1.How can I place an order for ADC128S052CIMT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC128S052CIMT/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 ADC128S052CIMT/NOPB reliable?
The price and inventory of ADC128S052CIMT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC128S052CIMT/NOPB is usually 5 days.
3.What payment methods are accepted for ADC128S052CIMT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC128S052CIMT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC128S052CIMT/NOPB?
ADC128S052CIMT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC128S052CIMT/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 ADC128S052CIMT/NOPB?
For technical support, including ADC128S052CIMT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC128S052CIMT/NOPB requirements.
6.How does Aetrix verify that ADC128S052CIMT/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC128S052CIMT/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 ADC128S052CIMT/NOPB meets industry standards.
7.What is the process for return or replacement of ADC128S052CIMT/NOPB?
All ADC128S052CIMT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC128S052CIMT/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 ADC128S052CIMT/NOPB part is unused and in its original packaging.
Return procedure for ADC128S052CIMT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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