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Texas Instruments ADC104S021CIMM/NOPB
- Part No.:
- ADC104S021CIMM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC104S021CIMM/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,294
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Product details
Overview
ADC104S021CIMM/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 single 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 - used for multi-sensor data acquisition in portable instrumentation.
For engineers reviewing the ADC104S021CIMM/NOPB datasheet, ADC104S021CIMM/NOPB pinout, ADC104S021CIMM/NOPB application, or ADC104S021CIMM/NOPB equivalent, key selection factors 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 10-lead VSSOP package compatibility with space-constrained embedded systems.
Technical Context
The ADC104S021CIMM/NOPB implements a charge-redistribution SAR architecture with integrated track-and-hold, supporting up to four independent analog inputs (IN1–IN4) multiplexed via a control register loaded on DIN. Conversion timing is fully synchronous to SCLK, requiring 16 clock cycles per frame (3 for track, 13 for hold/convert/readout), with MSB-first straight-binary output on DOUT.
It operates without power-up delay or dummy conversions; the first result after power-on defaults to IN1. Power management is controlled solely by CS: low enables normal operation (1.94 mW at 3V), high forces shutdown (0.12 µW), and the device enters tri-state on DOUT when CS is high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes - ensures monotonicity and full code coverage in closed-loop control feedback paths. |
| Sample Rate Range | 50 ksps to 200 ksps - supports flexible timing design without requalification across varying sensor update rates. |
| INL / DNL | ±0.13 LSB typical - enables accurate DC measurement and linearity-critical applications like precision thermocouple or strain gauge digitization. |
| SNR | 61.8 dB typical at 39.9 kHz input - delivers >9.9 ENOB for clean signal capture in noisy industrial environments. |
| Supply Range | +2.7V to +5.25V - allows direct interfacing with 3.3V or 5V microcontrollers and mixed-voltage system rails. |
| Power (3V) | 1.94 mW typical active, 0.12 µW shutdown - extends battery life in portable data loggers and remote sensors. |
| Crosstalk | −87 dB at 5V - isolates channels during simultaneous multi-signal monitoring (e.g., motor phase currents). |
Pinout & Package
ADC104S021CIMM/NOPB is housed in a 10-lead VSSOP (DGK) package, 3.0 mm × 3.0 mm × 1.0 mm, with exposed thermal pad (not electrically connected). Pin 1 is marked with a dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS | Chip Select | Falling edge initiates conversion frame; high disables output and enters 0.12 µW shutdown mode. |
| 2 VA | Analog Supply | +2.7V to +5.25V reference and power rail; requires local 1 µF + 0.1 µF bypassing within 1 cm. |
| 3 GND | Analog Ground | Common return for analog inputs and VA; must be star-connected to minimize noise coupling. |
| 4–7 IN1–IN4 | Analog Inputs | Single-ended, 0V to VA range; internally multiplexed; channel selected via 3-bit ADD[2:0] in DIN control register. |
| 8 DIN | Digital Input | Loads 8-bit control register on rising SCLK edges; bits [5:3] set next-channel address (IN1–IN4). |
| 9 DOUT | Digital Output | MSB-first straight-binary 10-bit result; tri-stated when CS is high; compatible with SPI/QSPI/MICROWIRE. |
| 10 SCLK | Serial Clock | Drives all timing: 16-cycle frame (3-track + 13-convert/read); 0.8–3.2 MHz range ensures deterministic latency. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed no missing codes | Ensures monotonic transfer function - critical for PID control loops and safety-critical threshold detection. |
| Channel-to-channel offset match | ±0.02 LSB max - enables precise differential measurements (e.g., current shunt vs. reference voltage) without calibration. |
| Full-power bandwidth | 8 MHz at 3V, 11 MHz at 5.25V - supports anti-aliasing filter design for signals up to ~3 MHz without aliasing. |
| Tri-state DOUT with CS control | Eliminates bus contention in multi-device SPI daisy chains or shared data lines without external logic. |
| Industrial temperature range | −40°C to +85°C operation - qualified for deployment in automotive engine compartments and factory-floor PLCs. |
Applications
| Portable Data Loggers | Automotive Sensor Monitoring |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node acquiring temperature, humidity, and pressure at 100 ksps. IC Role / Device Role / Timing Role: 4-channel ADC digitizing analog sensor outputs with synchronized sampling and low-latency SPI readout. Use Value: 0.12 µW shutdown power extends 10-year battery life; 10-lead VSSOP fits compact PCB layouts. |
Use Scenario: In-vehicle cabin air quality module measuring CO₂, VOC, and particulate levels. IC Role / Device Role / Timing Role: Multi-input ADC interfacing with electrochemical and NDIR sensors under AEC-Q100 Grade 3 conditions. Use Value: −40°C to +85°C rating and −87 dB crosstalk ensure reliable channel isolation in thermally variable environments. |
| Industrial Process Controllers | Lab Instrumentation Front-End |
|
Use Scenario: PLC analog input module conditioning 4–20 mA loop signals from flow meters and transmitters. IC Role / Device Role / Timing Role: Precision ADC providing calibrated 10-bit resolution with <±0.13 LSB INL for metrology-grade accuracy. Use Value: No missing codes and 61.8 dB SNR meet IEC 61000-4-3 immunity requirements for factory floor EMC robustness. |
Use Scenario: Benchtop multimeter front-end digitizing AC/DC voltage, current, and resistance readings. IC Role / Device Role / Timing Role: Low-noise SAR ADC serving as primary digitizer with programmable input channel sequencing via DIN register. Use Value: Straight-binary output and SPI compatibility simplify firmware integration with ARM Cortex-M host processors. |
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 10-bit resolution and pinout, but specified for 200–500 ksps range; higher minimum sample rate. | Better suited for higher-throughput applications like motor position sensing where >200 ksps is required. | Select ADC104S051 only if sustained ≥200 ksps operation is mandatory; ADC104S021CIMM/NOPB offers superior low-rate stability down to 50 ksps. |
| ADC124S021 | 12-bit resolution, same 50–200 ksps range and pin-compatible 10-lead VSSOP package. | Provides 2 extra bits for higher dynamic range in vibration analysis or audio pre-amplifier monitoring. | Choose ADC124S021 when ENOB >10 bits is required; ADC104S021CIMM/NOPB delivers lower power (1.94 mW vs. 2.8 mW at 3V) and simpler firmware handling. |
Compared with ADC104S021CIMM/NOPB, ADC104S051 trades low-end sample rate flexibility for higher throughput headroom, while ADC124S021 increases resolution at the cost of power and code depth complexity - making ADC104S021CIMM/NOPB optimal for cost-sensitive, battery-operated 10-bit applications demanding guaranteed linearity and industrial temperature support.
Availability
ADC104S021CIMM/NOPB is available at Aetrix Electronics and suitable for portable systems, remote data acquisition, instrumentation and control systems, and automotive sensor modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADC104S021CIMM/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 high-reliability ICs for industrial, automotive, and consumer applications.
ADC104S021CIMM/NOPB belongs to TI's precision SAR ADC product line, designed specifically for low-power, multi-channel data acquisition in space- and energy-constrained embedded systems.
FAQ
What is the maximum sample rate supported by the ADC104S021CIMM/NOPB?
The ADC104S021CIMM/NOPB is fully specified for continuous operation from 50 ksps up to 200 ksps. Its conversion time is fixed at 13 SCLK cycles, and throughput time is 16 SCLK cycles - meaning at 3.2 MHz SCLK, the theoretical maximum approaches 200 ksps. Exceeding this rate is not guaranteed per datasheet specifications, and timing margins degrade beyond 200 ksps.
Does the ADC104S021CIMM/NOPB require an external reference voltage?
No. The ADC104S021CIMM/NOPB uses its VA supply pin as the internal reference - the full-scale range is 0V to VA. This eliminates need for external references but requires clean, well-bypassed VA (1 µF + 0.1 µF capacitors within 1 cm) to maintain 61.8 dB SNR performance. Reference noise directly impacts measurement accuracy.
How is channel selection implemented on the ADC104S021CIMM/NOPB?
Channel selection is controlled via a 3-bit address (ADD2–ADD0) loaded into the ADC104S021CIMM/NOPB's control register on the DIN pin during each 16-cycle frame. Bits are clocked in on the first 8 rising SCLK edges after CS falls. Table 4 in the datasheet maps ADD[2:0] = 000 → IN1 (default), 001 → IN2, 010 → IN3, 011 → IN4.
Is the ADC104S021CIMM/NOPB pin-compatible with the ADC104S021Q variant?
Yes. The ADC104S021CIMM/NOPB and ADC104S021Q share identical pinout, electrical interface, and timing behavior. The Q variant is AEC-Q100 Grade 3 qualified and manufactured on an automotive-grade process flow, while the CIMM/NOPB is industrial-grade - both use the same 10-lead VSSOP (DGK) package and function identically in non-automotive applications.
What is the purpose of the DONTC bits in the ADC104S021CIMM/NOPB control register?
The DONTC bits (positions 7, 6, and 2–0) in the 8-bit control register have no functional effect - they are "don't care" bits. Only bits 5–3 (ADD2–ADD0) determine input channel selection. Firmware may write any value (0 or 1) to DONTC bits without impacting ADC104S021CIMM/NOPB operation or conversion results.
ADC104S021CIMM/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:
- -
- Qualification:
- -
ADC104S021CIMM/NOPB FAQ
1.How can I place an order for ADC104S021CIMM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC104S021CIMM/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 ADC104S021CIMM/NOPB reliable?
The price and inventory of ADC104S021CIMM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC104S021CIMM/NOPB is usually 5 days.
3.What payment methods are accepted for ADC104S021CIMM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC104S021CIMM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC104S021CIMM/NOPB?
ADC104S021CIMM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC104S021CIMM/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 ADC104S021CIMM/NOPB?
For technical support, including ADC104S021CIMM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC104S021CIMM/NOPB requirements.
6.How does Aetrix verify that ADC104S021CIMM/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC104S021CIMM/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 ADC104S021CIMM/NOPB meets industry standards.
7.What is the process for return or replacement of ADC104S021CIMM/NOPB?
All ADC104S021CIMM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC104S021CIMM/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 ADC104S021CIMM/NOPB part is unused and in its original packaging.
Return procedure for ADC104S021CIMM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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