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Texas Instruments ADC084S021CIMMX/NOPB
- Part No.:
- ADC084S021CIMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC084S021CIMMX/NOPB.pdf
- Description:
- IC ADC 8BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,737
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Product details
Overview
ADC084S021CIMMX/NOPB from Texas Instruments is a 4-channel, 8-bit successive-approximation ADC with serial SPI-compatible interface, operating from 2.7 V to 5.25 V supply and delivering 50–200 ksps sample rates. It integrates internal track-and-hold, supports straight-binary output, and achieves ±0.04 LSB typical INL/DNL and 49.6 dB typical SNR - used in portable instrumentation for multi-sensor analog signal digitization.
For engineers reviewing the ADC084S021CIMMX/NOPB datasheet, ADC084S021CIMMX/NOPB pinout, ADC084S021CIMMX/NOPB application, or ADC084S021CIMMX/NOPB equivalent, key selection considerations include its 10-pin VSSOP package, channel-selectable input mux (IN1–IN4), CS-controlled frame-based conversion timing, and low-power shutdown mode (0.12 µW @ 3 V).
Technical Context
The ADC084S021CIMMX/NOPB implements a charge-redistribution SAR architecture with integrated multiplexer and track-and-hold circuitry. Its conversion sequence requires exactly 16 SCLK cycles per frame: first 3 cycles for track acquisition, next 13 for hold, approximation, and MSB-first serial output.
Digital interface compliance includes SPI, QSPI, and MICROWIRE protocols via CS, SCLK, DIN, and DOUT pins. Input voltage range is rail-to-rail (0 V to VA), and analog inputs feature ESD protection diodes rated for ±2500 V HBM - with strict clamp limits of GND −300 mV and VA + 300 mV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes - guarantees monotonic transfer function and deterministic code spacing. |
| Sample Rate Range | 50 ksps to 200 ksps - fully specified across full range, enabling flexible throughput tuning without performance derating. |
| INL / DNL | ±0.04 LSB typical - ensures high linearity for precision sensor interfacing and calibration-critical applications. |
| SNR | 49.6 dB typical at fIN = 39.9 kHz - supports >7.9 ENOB for mid-frequency analog signal fidelity. |
| Supply Voltage | 2.7 V to 5.25 V - enables direct integration with 3.3 V or 5 V microcontroller systems without level-shifting. |
| Power (3 V) | 1.6 mW typical active, 0.12 µW shutdown - allows battery-powered operation with rapid wake/sleep cycling. |
| Interface | SPI-compatible serial (CS/SCLK/DIN/DOUT) - simplifies host connection using standard MCU peripheral drivers. |
Pinout & Package
The ADC084S021CIMMX/NOPB is housed in a 10-pin VSSOP package (3.00 mm × 3.00 mm body size), optimized for space-constrained PCB layouts and industrial temperature operation (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip select input | Falling edge initiates conversion frame; high state places device in tri-state output and power-down mode. |
| 2 - VA | Analog supply | Single 2.7–5.25 V rail powering analog core and reference; requires local 0.1 µF + 1 µF bypassing. |
| 3 - GND | Analog ground | Common return for all analog signals and internal reference; must be star-connected to minimize noise coupling. |
| 4–7 - IN1 to IN4 | Analog input channels | Multiplexed single-ended inputs; each accepts 0 V to VA range with 33 pF track-mode capacitance. |
| 8 - DIN | Serial data input | Loads 8-bit control register on rising SCLK edges; bits ADD2–ADD0 select next channel (IN1–IN4). |
| 9 - DOUT | Serial data output | MSB-first straight-binary output clocked on falling SCLK edges; high-impedance when CS is high. |
| 10 - SCLK | Serial clock input | Drives conversion timing and data transfer; frequency range 0.8–3.2 MHz defines maximum sample rate. |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel analog multiplexer | Hardware-selectable IN1–IN4 routing eliminates external MUX ICs and reduces BOM count in multi-sensor systems. |
| Variable power management | CS-driven shutdown cuts power to 0.12 µW @ 3 V - enables microamp-level system sleep states without external regulators. |
| Rail-to-rail analog input | 0 V to VA input range maximizes dynamic range utilization across 3.3 V and 5 V supply domains. |
| Straight-binary serial output | Native SPI-compatible format avoids software bit-reversal overhead and simplifies firmware parsing. |
| Industrial temperature range | –40°C to +85°C guaranteed operation supports deployment in harsh environments like factory automation and remote telemetry. |
Applications
| Portable Data Loggers | Remote Sensor Nodes |
|---|---|
|
Use Scenario: Battery-powered environmental monitors acquiring temperature, humidity, and pressure from four discrete sensors. IC Role / Device Role / Timing Role: 4-channel analog front-end digitizing sensor outputs sequentially under MCU SPI control with minimal power budget. Use Value: 1.6 mW active power and 0.12 µW shutdown enable multi-year battery life; VSSOP package fits compact enclosures. |
Use Scenario: Wireless IoT nodes transmitting analog sensor data over LoRaWAN or NB-IoT networks. IC Role / Device Role / Timing Role: Low-latency ADC converting conditioned analog signals before MCU-based packet assembly and RF transmission. Use Value: 200 ksps max sample rate supports oversampling for noise reduction; SPI interface synchronizes cleanly with low-power MCU peripherals. |
| Industrial Control Panels | Lab Instrumentation Front Ends |
|
Use Scenario: Modular PLC I/O modules monitoring analog process variables (e.g., 4–20 mA loop receivers). IC Role / Device Role / Timing Role: Precision 8-bit digitizer handling up to four field inputs with channel-to-channel offset match ≤ ±0.01 LSB. Use Value: ±0.04 LSB INL/DNL ensures repeatability across channels; –40°C to +85°C rating sustains accuracy in unconditioned cabinets. |
Use Scenario: Benchtop multimeters or oscilloscope auxiliary channels requiring fast, low-cost digitization. IC Role / Device Role / Timing Role: Standalone ADC capturing transient waveforms or DC levels with minimal external components. Use Value: Internal track-and-hold eliminates need for external THA; 49.6 dB SNR supports >7-bit effective resolution for lab-grade measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, 8-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC084S051CIMMX/NOPB | Higher sample rate (200–500 ksps); identical pinout and interface; same 8-bit resolution and VSSOP-10 package. | Better suited for higher-bandwidth signal capture (e.g., audio pre-processing, motor current sensing). | Select when ≥200 ksps sustained throughput is required; retains full hardware compatibility. |
| ADS7822U | 8-bit, 200 ksps, SPI interface, but 8-pin SOIC package; no internal track-and-hold; requires external sampling capacitor. | Limited to single-input use unless paired with external MUX; less integrated signal chain. | Choose for cost-sensitive, space-tolerant designs where board area is less constrained than component count. |
Compared with ADC084S021CIMMX/NOPB, ADC084S051CIMMX/NOPB offers higher speed with zero layout change, while ADS7822U trades integration for lower unit cost and relaxed packaging - making ADC084S021CIMMX/NOPB optimal for balanced performance, size, and ease of use in multi-channel embedded systems.
Availability
ADC084S021CIMMX/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, remote data acquisition, and industrial control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for ADC084S021CIMMX/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, embedded processing, and connectivity technologies, with decades of expertise in precision data converters and industrial-grade IC design.
The ADC084S021CIMMX/NOPB belongs to TI's low-power SAR ADC product line, engineered for energy-efficient, multi-channel analog signal digitization in battery-operated and space-constrained embedded systems.
FAQ
What is the absolute maximum supply voltage for ADC084S021CIMMX/NOPB?
The absolute maximum supply voltage (VA) for ADC084S021CIMMX/NOPB is 6.5 V, per the Absolute Maximum Ratings table. However, functional operation is only ensured between 2.7 V and 5.25 V. Exceeding 5.25 V risks permanent damage or parametric degradation, even if below 6.5 V.
Does ADC084S021CIMMX/NOPB require external reference voltage?
No, ADC084S021CIMMX/NOPB uses an internal reference derived from VA, so no external reference is needed. The full-scale range is 0 V to VA, and output codes scale linearly with supply voltage - making it compatible with ratiometric sensor interfaces.
How does channel selection work on ADC084S021CIMMX/NOPB?
Channel selection is controlled via the 3-bit ADD2–ADD0 field in the 8-bit control register loaded through DIN. Writing 000 selects IN1 (default after power-up), 001 selects IN2, 010 selects IN3, and 011 selects IN4. The selected channel is converted in the *next* frame, not the current one.
What is the minimum SCLK duty cycle supported by ADC084S021CIMMX/NOPB?
The minimum SCLK duty cycle for ADC084S021CIMMX/NOPB is 30%, specified under Recommended Operating Conditions. Operation outside 30%–70% may cause timing violations in tCH or tCL, leading to incorrect sampling or data corruption.
Can ADC084S021CIMMX/NOPB operate without external decoupling capacitors?
No - the datasheet mandates a 0.1 µF monolithic ceramic capacitor within 1 cm of the VA pin and a 1 µF bulk capacitor for stable operation. Omitting these increases noise susceptibility, degrades SNR, and may cause conversion errors or latch-up under transient load conditions.
ADC084S021CIMMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 4
- 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:
- 10-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC084S021CIMMX/NOPB FAQ
1.How can I place an order for ADC084S021CIMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC084S021CIMMX/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 ADC084S021CIMMX/NOPB reliable?
The price and inventory of ADC084S021CIMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC084S021CIMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC084S021CIMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC084S021CIMMX/NOPB transactions.
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4.How is shipping managed for ADC084S021CIMMX/NOPB?
ADC084S021CIMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC084S021CIMMX/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 ADC084S021CIMMX/NOPB?
For technical support, including ADC084S021CIMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC084S021CIMMX/NOPB requirements.
6.How does Aetrix verify that ADC084S021CIMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC084S021CIMMX/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 ADC084S021CIMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC084S021CIMMX/NOPB?
All ADC084S021CIMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC084S021CIMMX/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 ADC084S021CIMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC084S021CIMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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