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Texas Instruments ADC104S021CIMMX/NOPB
- Part No.:
- ADC104S021CIMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC104S021CIMMX/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:880
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Product details
Overview
ADC104S021CIMMX/NOPB from Texas Instruments is a 10-bit, 4-channel successive-approximation ADC with serial SPI/QSPI/MICROWIRE interface, operating at 50–200 ksps sample rates over a 2.7V–5.25V supply. It features ±0.13 LSB typical INL/DNL, 61.8 dB SNR, and 0.12 µW shutdown power at 3V, targeting portable data acquisition and automotive sensor interfaces.
For engineers reviewing the ADC104S021CIMMX/NOPB datasheet, ADC104S021CIMMX/NOPB pinout, ADC104S021CIMMX/NOPB application, or ADC104S021CIMMX/NOPB equivalent, key selection criteria include its guaranteed no-missing-codes performance across industrial temperature (−40°C to +85°C), channel-to-channel crosstalk of −87 dB at 5V, and full-power bandwidth of 8–11 MHz depending on supply voltage.
Technical Context
The ADC104S021CIMMX/NOPB implements a charge-redistribution DAC architecture with internal track-and-hold, enabling precise sampling across four analog inputs (IN1–IN4) without external hold capacitors. Its control logic synchronizes conversion timing to SCLK edges, requiring exactly 16 SCLK cycles per frame for acquisition (3 cycles), conversion (13 cycles), and MSB-first serial output.
It uses straight binary coding and supports dynamic input channel selection via an 8-bit control register loaded on DIN during each frame. Power management is controlled solely by CS: low enables normal operation (1.94 mW at 3V); high forces shutdown (0.12 µW), with no dummy conversions or power-up delay required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes - ensures monotonicity and deterministic code mapping for closed-loop control. |
| Sample Rate Range | 50 ksps to 200 ksps - fully specified across entire range, eliminating derating assumptions at intermediate speeds. |
| INL / DNL | ±0.13 LSB typical - enables <1 LSB error in precision sensor digitization without calibration. |
| SNR | 61.8 dB typical at 39.9 kHz input - supports >9.8 ENOB for high-fidelity signal capture in instrumentation. |
| Supply Voltage | +2.7V to +5.25V - allows direct interfacing with 3.3V or 5V microcontrollers without level-shifting. |
| Power (3V) | 1.94 mW active / 0.12 µW shutdown - enables battery-powered operation with rapid wake/sleep transitions. |
| Channel Crosstalk | −87 dB at 5V - prevents interference between simultaneous multi-sensor measurements. |
Pinout & Package
ADC104S021CIMMX/NOPB is housed in a 10-lead VSSOP package (DGK), measuring 3.0 mm × 3.0 mm × 1.0 mm, with exposed thermal pad for enhanced heat dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Falling edge initiates conversion frame; high state enables 0.12 µW shutdown mode and tri-states DOUT. |
| SCLK | Serial Clock Input | Directly controls all timing: 16-cycle frame alignment, 3-cycle track, 13-cycle convert/readout. |
| DOUT | Digital Output | MSB-first serial data stream; active only when CS is low; tri-stated otherwise. |
| DIN | Digital Input | Loads 8-bit control register on first 8 rising SCLK edges after CS fall to select next input channel (IN1–IN4). |
| IN1–IN4 | Analog Inputs | Four single-ended inputs referenced to VA; each accepts 0V to VA range with ≤33 pF input capacitance in track mode. |
| VA | Analog Supply | Single supply powering analog core and reference; requires local 1 µF + 0.1 µF bypassing within 1 cm. |
| GND | Ground Return | Common return for analog and digital sections; must be low-impedance to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Full-range sample rate specification | Performance validated from 50 ksps to 200 ksps - eliminates need for speed-specific qualification testing. |
| Variable power management | Hardware-controlled shutdown via CS pin - achieves 16,000× power reduction without software overhead. |
| Single-supply operation | 2.7V–5.25V analog supply - simplifies power architecture by eliminating separate reference or digital rails. |
| Channel-to-channel matching | OEM ±0.02 LSB and FSEM ±0.02 LSB - enables ratiometric multi-sensor systems without per-channel gain/offset correction. |
| Industrial temperature range | −40°C to +85°C operation - qualified for embedded control in harsh environments without derating. |
Applications
| Portable Systems | Remote Data Acquisition |
|---|---|
Use Scenario: Battery-powered handheld meter reading analog sensors (temperature, pressure, humidity) with intermittent sampling. IC Role / Device Role / Timing Role: 4-channel ADC digitizing sensor outputs sequentially under MCU SPI control; CS-driven sleep/wake cycles conserve energy. Use Value: 0.12 µW shutdown current extends battery life; 10-bit resolution captures sensor dynamics without oversampling. | Use Scenario: Wireless sensor node collecting environmental data across multiple transducers in field-deployed infrastructure. IC Role / Device Role / Timing Role: Central analog front-end converting up to four sensor signals into time-aligned digital streams for RF transmission. Use Value: −87 dB crosstalk prevents inter-channel interference; 200 ksps throughput supports burst-mode high-speed logging. |
| Instrumentation and Control Systems | Automotive |
Use Scenario: Lab-grade bench instrument acquiring synchronized multi-channel waveforms for real-time analysis. IC Role / Device Role / Timing Role: Precision ADC providing calibrated 10-bit samples to FPGA or DSP with deterministic 16-SCLK frame timing. Use Value: ±0.13 LSB INL/DNL ensures traceable measurement accuracy; straight binary output simplifies firmware parsing. | Use Scenario: In-vehicle body control module monitoring cabin sensors (light, occupancy, HVAC feedback) under AEC-Q100 Grade 3 conditions. IC Role / Device Role / Timing Role: Automotive-qualified ADC interfacing with 3.3V microcontroller via SPI, operating continuously across −40°C to +85°C. Use Value: AEC-Q100-011 C2 CDM classification ensures robustness against board-level ESD events in manufacturing and service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC104S051 | Same pinout and interface; higher max sample rate (500 ksps) and slightly higher power (2.3 mW at 3V). | Required for applications needing >200 ksps throughput, e.g., motor phase current sampling. | Select ADC104S051 only if sustained >200 ksps sampling is mandatory; otherwise ADC104S021CIMMX/NOPB offers lower power and cost. |
| ADC124S021 | Pin-compatible 12-bit variant; same 50–200 ksps range but higher resolution (12-bit) and increased power (2.8 mW at 3V). | Suitable where system-level accuracy demands >10-bit ENOB, such as precision thermocouple measurement. | Choose ADC124S021 when resolution is prioritized over power; ADC104S021CIMMX/NOPB remains optimal for 10-bit cost/power balance. |
Compared with ADC104S051 and ADC124S021, ADC104S021CIMMX/NOPB delivers the lowest active and shutdown power in the family while maintaining full 10-bit linearity and industrial temperature compliance-making it the preferred choice for energy-constrained, multi-channel sensing where 200 ksps is sufficient.
Availability
ADC104S021CIMMX/NOPB is available at Aetrix Electronics and suitable for portable systems, remote data acquisition, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADC104S021CIMMX/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 automotive-grade ICs.
The ADC104S021CIMMX/NOPB belongs to TI's precision SAR ADC product line, designed specifically for low-power, multi-channel sensor interfacing in portable, industrial, and automotive applications where reliability and guaranteed specifications across voltage and temperature are critical.
FAQ
What is the maximum sample rate supported by the ADC104S021CIMMX/NOPB?
The ADC104S021CIMMX/NOPB is fully specified for continuous operation from 50 ksps up to 200 ksps. Its timing architecture requires exactly 16 SCLK cycles per conversion frame, and the device remains functional beyond 200 ksps-but guaranteed AC performance (e.g., SNR, THD) applies only within the 50–200 ksps range per the datasheet. At 200 ksps, the minimum SCLK frequency is 3.2 MHz.
Does the ADC104S021CIMMX/NOPB require an external reference voltage?
No, the ADC104S021CIMMX/NOPB uses its VA supply pin as the reference voltage source, producing a full-scale range of 0V to VA. This eliminates the need for an external reference but requires clean, well-bypassed VA (1 µF + 0.1 µF capacitors within 1 cm) to maintain 61.8 dB SNR performance. Any noise on VA directly modulates the LSB size (VA/1024).
How is channel selection implemented on the ADC104S021CIMMX/NOPB?
Channel selection is controlled via a 3-bit address (ADD2–ADD0) loaded into the ADC104S021CIMMX/NOPB's internal control register through the DIN pin during each 16-cycle SCLK frame. The mapping is fixed: 000 = IN1 (default on power-up), 001 = IN2, 010 = IN3, 011 = IN4. Bits 7–6 and 2–0 are don't-care and have no effect on operation.
What is the power consumption of the ADC104S021CIMMX/NOPB at 3.3V supply?
At VA = 3.3V and 200 ksps sample rate, the ADC104S021CIMMX/NOPB draws 0.55–0.7 mA typical supply current in normal operation, equating to approximately 1.8–2.3 mW. In shutdown mode (CS high), it consumes just 32 nA, or ~0.11 µW. These values are confirmed in the Electrical Characteristics table under "Supply Current, Normal Mode" and "Supply Current, Shutdown".
Is the ADC104S021CIMMX/NOPB qualified for automotive applications?
The ADC104S021CIMMX/NOPB itself is not automotive-qualified; however, its automotive-grade variant ADC104S021Q is AEC-Q100 Grade 3 qualified and manufactured on an automotive flow. Both share identical pinout, functionality, and AC/DC specs-but only ADC104S021Q meets automotive stress test requirements (e.g., temperature cycling, HTOL). For non-automotive industrial use, ADC104S021CIMMX/NOPB is fully rated from −40°C to +85°C.
ADC104S021CIMMX/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:
- 10
- 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:
- Automotive
- Qualification:
- AEC-Q100
ADC104S021CIMMX/NOPB FAQ
1.How can I place an order for ADC104S021CIMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC104S021CIMMX/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 ADC104S021CIMMX/NOPB reliable?
The price and inventory of ADC104S021CIMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC104S021CIMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC104S021CIMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC104S021CIMMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC104S021CIMMX/NOPB?
ADC104S021CIMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC104S021CIMMX/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 ADC104S021CIMMX/NOPB?
For technical support, including ADC104S021CIMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC104S021CIMMX/NOPB requirements.
6.How does Aetrix verify that ADC104S021CIMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC104S021CIMMX/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 ADC104S021CIMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC104S021CIMMX/NOPB?
All ADC104S021CIMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC104S021CIMMX/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 ADC104S021CIMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC104S021CIMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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