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Texas Instruments ADC082S101CIMMX/NOPB
- Part No.:
- ADC082S101CIMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC082S101CIMMX/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,143
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Product details
Overview
ADC082S101CIMMX/NOPB from Texas Instruments is a low-power, 2-channel, 8-bit successive-approximation ADC with SPI-compatible serial interface, operating at 500 ksps to 1 Msps sample rates over 2.7V–5.25V supply. It features ±0.13 LSB INL (typ), 49.6 dB SNR (typ), and integrated track-and-hold for dual analog inputs IN1/IN2-used in portable instrumentation front-ends requiring compact, low-quiescent-power data acquisition.
For engineers reviewing the ADC082S101CIMMX/NOPB datasheet, ADC082S101CIMMX/NOPB pinout, ADC082S101CIMMX/NOPB application, or ADC082S101CIMMX/NOPB equivalent, key selection criteria include guaranteed performance across full 500 ksps–1 Msps range, channel-to-channel crosstalk <−73 dB at 5V, shutdown current of 0.12 µW (3V), and VSSOP-8 package compatibility with space-constrained embedded sensor nodes.
Technical Context
The ADC082S101CIMMX/NOPB implements a charge-redistribution DAC architecture with internal track-and-hold, enabling simultaneous sampling control via CS and SCLK-synchronized conversion. Its 16-cycle throughput time includes 3 cycles for track mode acquisition and 13 cycles for hold/convert/readout, supporting MSB-first serial output on DOUT.
It accepts straight-binary output coding and supports SPI/QSPI/MICROWIRE/DSP serial protocols via DIN/DOUT/SCLK/CS interface. Input channels IN1 and IN2 are multiplexed under control of a 3-bit address field (ADD2–ADD0) loaded into the control register during each frame, with ADD1=1 prohibited to avoid indeterminate output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes-ensures monotonicity and deterministic code mapping across full industrial temperature range. |
| Sample Rate Range | 500 ksps to 1 Msps-fully specified performance across entire range, eliminating need for derating at mid-range speeds. |
| INL / DNL | ±0.13 LSB / ±0.10 LSB (typ)-enables accurate DC measurement and low-gain signal conditioning without calibration. |
| SNR | 49.6 dB (typ) at 40.3 kHz input-supports 7.9 ENOB for audio-band and sensor signal digitization. |
| Power Consumption | 3.9 mW at 3V / 11.4 mW at 5V (typ)-enables battery operation in portable systems with <1 µA shutdown current. |
| Analog Input Range | 0 V to VA-uses supply as reference, simplifying design but requiring clean, well-bypassed VA rail. |
| Crosstalk | −73 dB at 5.25V-ensures independent channel integrity in dual-sensor monitoring applications. |
Pinout & Package
ADC082S101CIMMX/NOPB is housed in an 8-lead VSSOP (DGK) package with 0.65 mm lead pitch, optimized for thermal performance (θJA = 250°C/W) and PCB area efficiency in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Falling edge initiates conversion frame; high state enables power-down mode and tri-states DOUT. |
| SCLK | Serial Clock Input | Directly controls conversion timing and serial data transfer; supports 50 kHz–16 MHz frequency with 30%–70% duty cycle. |
| DOUT | Digital Output | MSB-first serial output of conversion result; active only when CS is low; tri-stated when CS is high. |
| DIN | Digital Input | Loads 3-bit channel address (ADD2–ADD0) for next conversion on first 8 rising SCLK edges after CS fall. |
| IN1 / IN2 | Analog Inputs | Single-ended inputs referenced to GND; voltage range 0 V to VA; input capacitance 33 pF (track) / 3 pF (hold). |
| VA | Analog Supply | +2.7V to +5.25V supply pin; serves as both power source and voltage reference; requires local 1 µF + 0.1 µF bypassing. |
| GND | Ground Return | Common return for analog and digital circuitry; must be low-impedance connection to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Variable Power Management | Dynamic power scaling via CS-controlled shutdown: 0.12 µW (3V) or 0.35 µW (5V) quiescent consumption enables ultra-low-power sleep modes. |
| Two Input Channels | Dual independent analog inputs (IN1/IN2) with <0.3 LSB channel-to-channel offset/full-scale match-supports differential or sequential sensing without external MUX. |
| Single-Supply Operation | 2.7V–5.25V operation eliminates need for dual rails or external reference-reduces BOM count and layout complexity in portable designs. |
| Serial Interface Compatibility | Native SPI/QSPI/MICROWIRE protocol support-direct interfacing with microcontrollers and DSPs without level-shifting or glue logic. |
| Industrial Temperature Range | −40°C to +85°C guaranteed operation-validates use in automotive cabin sensors, industrial PLC I/O modules, and outdoor instrumentation. |
Applications
| Portable Medical Sensors | Remote Environmental Monitoring |
|---|---|
Use Scenario: Battery-powered wearable ECG or pulse oximeter acquiring two physiological signals (e.g., lead I and II) simultaneously. IC Role / Device Role / Timing Role: Dual-channel ADC digitizing analog front-end outputs with synchronized sampling and low-latency serial readout. Use Value: 0.12 µW shutdown current extends battery life; 8-bit resolution with ±0.13 LSB INL ensures clinical-grade baseline stability. | Use Scenario: Solar-powered weather station measuring temperature and humidity via resistive/thermistor sensors. IC Role / Device Role / Timing Role: Low-power analog-to-digital converter interfacing with MCU over SPI to digitize dual sensor outputs at 500 ksps. Use Value: Single 3V supply simplifies energy harvesting design; −73 dB crosstalk prevents cross-channel interference in multi-sensor correlation. |
| Industrial Motor Control Feedback | Test & Measurement Front-Ends |
Use Scenario: Compact motor drive board monitoring phase current and bus voltage for closed-loop control. IC Role / Device Role / Timing Role: High-speed dual-input ADC capturing current sense and DC-link voltage with minimal latency and deterministic timing. Use Value: 1 Msps maximum sample rate supports >10 kHz control loop bandwidth; 49.6 dB SNR maintains signal fidelity in noisy industrial EMI environments. | Use Scenario: Handheld multimeter or oscilloscope probe module digitizing analog test signals with dual-channel capability. IC Role / Device Role / Timing Role: Precision ADC providing calibrated 8-bit digitization with known linearity error for firmware-based correction. Use Value: Guaranteed ±0.4 LSB max INL/DNL across temperature allows one-time factory calibration; VSSOP-8 footprint enables miniaturized probe head design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC082S051CIMMX/NOPB | Same 8-bit resolution and VSSOP-8 package, but rated for 200–500 ksps range-lower max sample rate and relaxed AC specs (e.g., 48.5 dB SNR). | Best suited for cost-sensitive, lower-bandwidth applications like basic data loggers where 1 Msps is unnecessary. | Select when system throughput ≤500 ksps and budget constraints outweigh need for highest speed. |
| ADC102S051CIMMX/NOPB | 10-bit resolution, same pinout, 200–500 ksps range-adds 2 extra bits of precision but reduces max speed and increases power (5.1 mW at 3V). | Ideal for applications needing higher resolution at moderate speed, such as precision thermocouple or strain gauge measurement. | Choose when ENOB >8 bits is required and 500 ksps suffices; verify layout compatibility with identical VSSOP-8 footprint. |
Compared with ADC082S051CIMMX/NOPB and ADC102S051CIMMX/NOPB, ADC082S101CIMMX/NOPB uniquely delivers 1 Msps operation with 8-bit accuracy and sub-µW shutdown-making it optimal for high-throughput, ultra-low-power dual-channel acquisition where speed and quiescent current are primary constraints.
Availability
ADC082S101CIMMX/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, remote environmental monitoring, and industrial motor control feedback requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for ADC082S101CIMMX/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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, energy efficiency, and system-level integration.
The ADC082S101CIMMX/NOPB belongs to TI's precision SAR ADC product line, designed specifically for low-power, dual-channel data acquisition in space- and energy-constrained embedded systems-from handheld instruments to distributed IoT sensor nodes.
FAQ
What is the maximum sample rate supported by the ADC082S101CIMMX/NOPB?
The ADC082S101CIMMX/NOPB supports a maximum sample rate of 1 Msps, fully specified across its operational range of 500 ksps to 1 Msps. This is confirmed in the Electrical Characteristics table and Timing Specifications section of the SNAS288D datasheet, where parameters including SINAD, SNR, and THD are guaranteed at 1 Msps with fSCLK = 16 MHz. The device achieves this using a 16-cycle throughput time synchronized to SCLK.
Does the ADC082S101CIMMX/NOPB require an external voltage reference?
No, the ADC082S101CIMMX/NOPB does not require an external voltage reference. It uses the VA supply pin (2.7V–5.25V) as its internal reference, producing a straight-binary output where 1 LSB = VA/256. This simplifies system design but requires careful VA rail decoupling-TI specifies 1 µF + 0.1 µF capacitors placed within 1 cm of the VA pin to maintain SNR and INL performance.
How is channel selection implemented on the ADC082S101CIMMX/NOPB?
Channel selection on the ADC082S101CIMMX/NOPB is controlled via a 3-bit address field (ADD2–ADD0) loaded into the control register through the DIN pin during each serial frame. Per Table 4 in the datasheet, ADD1=0 and ADD0=0 selects IN1 (default), while ADD1=0 and ADD0=1 selects IN2. ADD1=1 is prohibited and results in indeterminate DOUT behavior-firmware must enforce valid address codes to ensure reliable dual-channel operation.
What is the power consumption of the ADC082S101CIMMX/NOPB in shutdown mode?
In shutdown mode (CS high), the ADC082S101CIMMX/NOPB draws 0.12 µW at 3.6V and 0.35 µW at 5.25V, corresponding to supply currents of 200 nA. This ultra-low quiescent power is validated across the industrial temperature range and enables extended battery life in intermittent-sampling applications such as wireless sensor nodes or portable diagnostic tools.
Is the ADC082S101CIMMX/NOPB pin-compatible with other devices in the ADC082Sxx family?
Yes, the ADC082S101CIMMX/NOPB is fully pin- and function-compatible with ADC082S021CIMMX/NOPB and ADC082S051CIMMX/NOPB per Table 1 in the SNAS288D datasheet. All share identical 8-pin VSSOP (DGK) packaging, pin assignments, serial interface protocol, and control register structure-allowing drop-in replacement when adjusting sample rate or power/performance trade-offs without PCB redesign.
ADC082S101CIMMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 2
- 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 ~ 85°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC082S101CIMMX/NOPB FAQ
1.How can I place an order for ADC082S101CIMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC082S101CIMMX/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 ADC082S101CIMMX/NOPB reliable?
The price and inventory of ADC082S101CIMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC082S101CIMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC082S101CIMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC082S101CIMMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC082S101CIMMX/NOPB?
ADC082S101CIMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC082S101CIMMX/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 ADC082S101CIMMX/NOPB?
For technical support, including ADC082S101CIMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC082S101CIMMX/NOPB requirements.
6.How does Aetrix verify that ADC082S101CIMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC082S101CIMMX/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 ADC082S101CIMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC082S101CIMMX/NOPB?
All ADC082S101CIMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC082S101CIMMX/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 ADC082S101CIMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC082S101CIMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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