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Texas Instruments ADC104S021QIMM/NOPB
- Part No.:
- ADC104S021QIMM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC104S021QIMM/NOPB.pdf
- Description:
- IC ADC 10BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,084
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Product details
Overview
ADC104S021QIMM/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, 2.7V–5.25V single supply, and specified over −40°C to +85°C for automotive and industrial data acquisition.
For engineers reviewing the ADC104S021QIMM/NOPB datasheet, ADC104S021QIMM/NOPB pinout, ADC104S021QIMM/NOPB application, or ADC104S021QIMM/NOPB equivalent, key selection criteria include guaranteed no missing codes, ±0.13 LSB typical INL/DNL, 61.8 dB SNR at 39.9 kHz, 1.94 mW power at 3V, and AEC-Q100 Grade 3 qualification.
Technical Context
The ADC104S021QIMM/NOPB implements a charge-redistribution SAR architecture with integrated track-and-hold, supporting four analog inputs (IN1–IN4) via internal multiplexer. It uses straight binary output coding and operates without dummy conversions or power-up delays.
Conversion timing is tightly coupled to SCLK: 3 SCLK cycles in track mode, 13 in hold/convert/readout, totaling 16 SCLK per throughput cycle. The control register (8-bit DIN) selects input channel on rising SCLK edges, enabling dynamic channel sequencing across consecutive frames.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes - ensures monotonicity and full code coverage across temperature and supply range. |
| Sample Rate | 50–200 ksps - fully specified across entire range, enabling flexible throughput tuning without performance degradation. |
| INL / DNL | ±0.13 LSB (typ) - supports high-precision measurement in instrumentation and closed-loop control where linearity affects accuracy. |
| SNR | 61.8 dB (typ) at 39.9 kHz - enables >9.9 ENOB for clean signal capture in noise-sensitive sensor interfaces. |
| Power (3V) | 1.94 mW (typ) normal mode; 0.12 µW (typ) shutdown - suitable for battery-powered portable systems with duty-cycled sensing. |
| Supply Range | +2.7V to +5.25V - interoperable with common microcontroller I/O rails and LDO outputs without level-shifting. |
| AEC-Q100 | Grade 3 (−40°C to +85°C) - qualified for under-hood automotive sensors and industrial control modules requiring extended temperature reliability. |
Pinout & Package
ADC104S021QIMM/NOPB is housed in a 10-lead VSSOP (DGK) package with 0.5 mm pitch, optimized for compact PCB layouts and thermal dissipation (θJA = 190°C/W).
| 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 sampling, conversion, and serial data timing; supports 0.8–3.2 MHz operation. |
| DOUT | Digital Output | MSB-first straight binary output; active only when CS is low; tri-stated when CS is high. |
| DIN | Digital Input | Loads 8-bit control register on rising SCLK edges to select next input channel (IN1–IN4). |
| IN1–IN4 | Analog Inputs | Single-ended inputs referenced to VA; each accepts 0V to VA range with ≤33 pF input capacitance in track mode. |
| VA | Analog Supply | Single positive supply (2.7–5.25V); serves as both reference and power rail-requires local 1 µF + 0.1 µF bypassing. |
| GND | Ground Return | Common return for analog and digital sections; must be low-impedance and separated from noisy digital ground planes. |
Key Features
| Feature | Design Value |
|---|---|
| Variable Power Management | Dynamic shutdown via CS pin reduces current to 32 nA (3.6V), enabling ultra-low-power sleep modes in remote monitoring nodes. |
| Four Input Channels | Hardware-multiplexed IN1–IN4 with channel-select register eliminates external MUX and reduces BOM count in multi-sensor systems. |
| Wide Supply Range | 2.7V–5.25V operation allows direct interfacing with 3.3V and 5V microcontrollers without voltage translation or dual supplies. |
| Serial Interface Compatibility | Native SPI/QSPI/MICROWIRE timing eliminates protocol translation logic and simplifies FPGA or DSP integration. |
| Automotive Qualification | AEC-Q100 Grade 3 and CDM Class C2 certification validate robustness for automotive body electronics and ADAS sensor front-ends. |
Applications
| Portable Systems | Remote Data Acquisition |
|---|---|
Use Scenario: Handheld multimeter with simultaneous voltage, temperature, and current sensing. IC Role / Device Role / Timing Role: 4-channel SAR ADC digitizes analog sensor outputs with synchronized sampling and SPI readout to ARM Cortex-M MCU. Use Value: Single-chip solution replaces discrete ADC + MUX, reducing board area by 40% and eliminating inter-channel skew in battery-powered field tools. |
Use Scenario: Wireless environmental sensor node measuring air quality, humidity, and pressure over LoRaWAN. IC Role / Device Role / Timing Role: Low-power ADC acquires sensor data at 50 ksps, enters shutdown between bursts, and transmits via SPI to sub-GHz transceiver. Use Value: 0.12 µW shutdown current extends 2xAA battery life to >5 years in intermittent-sampling deployments. |
| Instrumentation and Control Systems | Automotive |
Use Scenario: PLC analog input module conditioning 4–20 mA loop signals from industrial transmitters. IC Role / Device Role / Timing Role: ADC samples up to four current-loop channels with 10-bit resolution and <±0.13 LSB linearity for closed-loop PID feedback. Use Value: Guaranteed monotonicity and no missing codes ensure accurate 4–20 mA mapping across full temperature range (−40°C to +85°C). |
Use Scenario: Cabin climate control system monitoring HVAC blower motor current, cabin temperature, and ambient light. IC Role / Device Role / Timing Role: AEC-Q100 qualified ADC digitizes multiple analog sensors with SPI interface to automotive-grade MCU. Use Value: Automotive flow manufacturing and CDM Class C2 rating meet OEM requirements for in-vehicle ESD immunity and long-term reliability. |
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 architecture, but rated for 200–500 ksps sample rate range - higher speed with identical resolution and interface. | Preferred for systems requiring >200 ksps throughput (e.g., motor phase current sampling), not for low-power 50 ksps sensor logging. | Select ADC104S051 only if sustained >200 ksps sampling is required; ADC104S021QIMM/NOPB remains optimal for power-constrained 50–200 ksps use cases. |
| ADC124S021 | 12-bit resolution, same 50–200 ksps range and pin-compatible footprint - adds 2 extra bits of precision at cost of ~30% higher power (2.5 mW @3V). | Suitable for high-accuracy applications like precision thermocouple measurement where 12-bit ENOB justifies added power and cost. | Choose ADC124S021 when absolute accuracy demands >10-bit resolution; retain ADC104S021QIMM/NOPB for cost- and power-sensitive 10-bit applications with proven AEC-Q100 compliance. |
Compared with ADC104S051 and ADC124S021, ADC104S021QIMM/NOPB uniquely balances AEC-Q100 Grade 3 qualification, 0.12 µW shutdown power, and guaranteed 10-bit linearity across its full 50–200 ksps range-making it the optimal choice for automotive and industrial battery-operated sensor nodes where reliability and efficiency are co-prioritized.
Availability
ADC104S021QIMM/NOPB is available at Aetrix Electronics and suitable for portable systems, remote data acquisition, instrumentation and control systems, and automotive applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for ADC104S021QIMM/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 automotive-grade ICs.
ADC104S021QIMM/NOPB belongs to TI's precision SAR ADC product line, designed specifically for cost-sensitive, low-power, multi-channel sensing in automotive, industrial, and portable applications demanding AEC-Q100 compliance and guaranteed linearity.
FAQ
What is the maximum sample rate supported by the ADC104S021QIMM/NOPB?
The ADC104S021QIMM/NOPB is fully specified for continuous operation from 50 ksps to 200 ksps. Its architecture supports reliable conversion at 200 ksps with guaranteed performance in SNR, INL, and DNL across the full industrial temperature range. Operation beyond 200 ksps is not characterized or recommended per TI's datasheet specifications.
Does the ADC104S021QIMM/NOPB require an external voltage reference?
No, the ADC104S021QIMM/NOPB uses its VA supply pin as the reference voltage-no external reference is needed. The LSB size is VA/1024, so analog input range is 0V to VA. This simplifies design but requires clean, well-bypassed VA supply to maintain SNR and avoid reference-induced errors.
How does the channel selection work on the ADC104S021QIMM/NOPB?
Channel selection is controlled via the 3-bit ADD[2:0] field in the 8-bit control register loaded on DIN. Valid combinations are: 000→IN1 (default), 001→IN2, 010→IN3, 011→IN4. The register is updated before each conversion, allowing dynamic channel sequencing within a single CS frame.
Is the ADC104S021QIMM/NOPB pin-compatible with other devices in the ADC104Sxx1 family?
Yes-the ADC104S021QIMM/NOPB is fully pin- and function-compatible with ADC104S051 and ADC104S101 per TI's Table 1, sharing identical 10-pin VSSOP layout, pin functions, and serial interface protocol. This enables drop-in speed upgrades without PCB redesign.
What is the power consumption of the ADC104S021QIMM/NOPB at 3.3V supply?
At VA = 3.3V and 200 ksps sample rate, the ADC104S021QIMM/NOPB draws 0.55 mA typical supply current, resulting in 1.82 mW typical power consumption. In shutdown mode (CS high), current drops to 32 nA, consuming just 0.11 µW-ideal for wake-on-event sensor architectures.
ADC104S021QIMM/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
ADC104S021QIMM/NOPB FAQ
1.How can I place an order for ADC104S021QIMM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC104S021QIMM/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 ADC104S021QIMM/NOPB reliable?
The price and inventory of ADC104S021QIMM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC104S021QIMM/NOPB is usually 5 days.
3.What payment methods are accepted for ADC104S021QIMM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC104S021QIMM/NOPB transactions.
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4.How is shipping managed for ADC104S021QIMM/NOPB?
ADC104S021QIMM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC104S021QIMM/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 ADC104S021QIMM/NOPB?
For technical support, including ADC104S021QIMM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC104S021QIMM/NOPB requirements.
6.How does Aetrix verify that ADC104S021QIMM/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC104S021QIMM/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 ADC104S021QIMM/NOPB meets industry standards.
7.What is the process for return or replacement of ADC104S021QIMM/NOPB?
All ADC104S021QIMM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC104S021QIMM/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 ADC104S021QIMM/NOPB part is unused and in its original packaging.
Return procedure for ADC104S021QIMM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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