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Texas Instruments ADC104S021QIMMX/NOPB
- Part No.:
- ADC104S021QIMMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC104S021QIMMX/NOPB.pdf
- Description:
- ADC104S021Q-Q1 - 4 CHANNEL, 50 K
- Quantity:
- Payment:
- Shipping:
Inventory:2,391
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Product details
Overview
ADC104S021QIMMX/NOPB from Texas Instruments is a 10-bit, 4-channel successive-approximation ADC with serial SPI/QSPI/MICROWIRE interface, operating from 2.7V to 5.25V supply and specified across 50–200 ksps sample rates. It features ±0.13 LSB typical INL/DNL, 61.8 dB SNR, and 0.12 µW shutdown power at 3V, targeting portable instrumentation and automotive sensor data acquisition.
For engineers reviewing the ADC104S021QIMMX/NOPB datasheet, ADC104S021QIMMX/NOPB pinout, ADC104S021QIMMX/NOPB application, or ADC104S021QIMMX/NOPB equivalent, key selection criteria include guaranteed no missing codes, AEC-Q100 Grade 3 qualification, channel-to-channel crosstalk <−87 dB, 16-cycle throughput time, and VSSOP-10 package compatibility with space-constrained industrial and automotive PCB layouts.
Technical Context
The ADC104S021QIMMX/NOPB implements a charge-redistribution DAC architecture with internal track-and-hold, enabling precise sampling of up to four analog inputs (IN1–IN4) in sequence. Its control logic accepts 8-bit DIN commands to select input channels prior to each conversion cycle.
Serial communication uses MSB-first straight binary output synchronized to SCLK falling edges on DOUT, while DIN loads the control register on rising SCLK edges. Conversion timing is fully defined across 0.8–3.2 MHz clock frequency and supports integer-multiple 16-cycle frames for continuous multi-channel acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with no missing codes-ensures monotonicity and full code coverage over temperature. |
| Sample Rate Range | 50–200 ksps-fully characterized across this range, eliminating need for derating at intermediate speeds. |
| INL / DNL | ±0.13 LSB typical-supports high-accuracy sensor measurement without calibration in many applications. |
| SNR | 61.8 dB typical at 39.9 kHz input-enables >9.9 ENOB for precision analog monitoring. |
| Power (3V) | 1.94 mW operational / 0.12 µW shutdown-facilitates battery-powered operation with rapid wake/sleep transitions. |
| Supply Range | 2.7V to 5.25V-compatible with both 3.3V and 5V system rails without level-shifting. |
| Crosstalk | −87 dB at 5.25V-minimizes inter-channel interference in multi-sensor systems. |
Pinout & Package
ADC104S021QIMMX/NOPB is housed in a 10-lead VSSOP (DGK) package, 3.0 mm × 3.0 mm × 0.9 mm, with exposed thermal pad (not electrically connected). Pin spacing is 0.5 mm; recommended reflow profile complies with JEDEC J-STD-020.
| 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 | Directly controls conversion timing and serial I/O; supports 0.8–3.2 MHz with 30–70% duty cycle. |
| DOUT | Digital Output | MSB-first straight binary data, active only when CS is low; outputs 10-bit result starting on 5th SCLK falling edge. |
| DIN | Digital Input | Loads 8-bit control register on first 8 rising SCLK edges after CS fall; bits ADD2–ADD0 select next input channel (IN1–IN4). |
| IN1–IN4 | Analog Inputs | Single-ended inputs referenced to VA; accept 0V to VA range; input capacitance 33 pF (track) / 3 pF (hold). |
| VA | Analog Supply | Primary supply for analog core and reference; requires local 1 µF + 0.1 µF bypassing within 1 cm. |
| GND | Ground | 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 power scaling across 50–200 ksps with sub-µW shutdown-reduces thermal load in always-on systems. |
| AEC-Q100 Grade 3 Qualified | Validated for −40°C to +85°C automotive ambient operation with CDM ESD rating per AEC-Q100-011 C2. |
| Pin-Compatible Family | Shares 10-pin VSSOP footprint and control protocol with ADC124S021 (12-bit) and ADC084S021 (8-bit) variants. |
| Single-Supply Operation | Eliminates need for dual supplies or external reference-simplifies layout and reduces BOM count. |
| No Power-Up Delay | First conversion after power-on yields valid IN1 sample-enables immediate system readiness without initialization sequences. |
Applications
| Portable Data Loggers | Automotive Cabin Sensors |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and pressure across multiple zones. IC Role / Device Role / Timing Role: Simultaneous sampling of four analog sensor outputs with deterministic 16-cycle throughput for synchronized timestamping. Use Value: 1.94 mW at 3V extends battery life; AEC-Q100 qualification ensures reliability in vehicle cabin environments. | Use Scenario: Occupancy detection and air quality sensing in HVAC control modules. IC Role / Device Role / Timing Role: Analog front-end digitizing CO₂, VOC, and occupancy sensor signals with channel-to-channel crosstalk <−87 dB. Use Value: Guaranteed no missing codes and ±0.13 LSB INL enable direct use in closed-loop feedback without software correction. |
| Industrial PLC Analog Inputs | Remote Telemetry Units |
Use Scenario: Modular I/O cards acquiring process variables (4–20 mA, thermocouple, RTD) in factory automation. IC Role / Device Role / Timing Role: High-speed multiplexed ADC interfacing to isolated signal conditioners via SPI-compatible serial bus. Use Value: 50–200 ksps range supports oversampling for noise reduction; 2.7–5.25V supply tolerance accommodates varied field power rails. | Use Scenario: Solar-powered remote sensors transmitting soil moisture, solar irradiance, and wind speed over LoRaWAN. IC Role / Device Role / Timing Role: Low-power analog acquisition engine with programmable channel sequencing and deep-sleep capability. Use Value: 0.12 µW shutdown current minimizes quiescent drain; SPI interface simplifies integration with low-power microcontrollers. |
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 VSSOP-10 package, but specified for 200–500 ksps range; higher minimum sample rate. | Requires ≥200 ksps operation; not suitable for ≤100 ksps low-power designs. | Select ADC104S051 only when sustained throughput >200 ksps is required and system clock can support ≥4 MHz SCLK. |
| ADC124S021 | 12-bit resolution, same pinout and serial interface; higher SNR (70 dB typ) and lower DNL (±0.3 LSB max). | Delivers higher dynamic range for precision measurement; consumes more power (3.5 mW at 3V). | Choose ADC124S021 when ENOB >11 bits is needed and additional 1.56 mW power budget is available. |
Compared with ADC104S021QIMMX/NOPB, ADC104S051 trades low-end sample rate flexibility for higher speed compliance, while ADC124S021 upgrades resolution and noise performance at the cost of power and cost-neither is pin-compatible drop-in replacement without firmware and layout review.
Availability
ADC104S021QIMMX/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 qualified performance.
Supply support for ADC104S021QIMMX/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 ADC104S021QIMMX/NOPB belongs to TI's precision SAR ADC product line, designed specifically for cost-sensitive, space-constrained industrial and automotive data acquisition where guaranteed performance across voltage, temperature, and sample rate is critical.
FAQ
What is the operating temperature range for ADC104S021QIMMX/NOPB?
The ADC104S021QIMMX/NOPB is rated for −40°C to +85°C ambient operation, meeting AEC-Q100 Grade 3 requirements. This range is validated across all electrical specifications including INL, DNL, SNR, and crosstalk, ensuring consistent performance in automotive cabin and industrial control environments without derating.
Does ADC104S021QIMMX/NOPB require an external reference voltage?
No, ADC104S021QIMMX/NOPB uses its VA supply pin as the reference-no external reference is needed. The LSB size is VA/1024, so accuracy depends directly on VA stability and noise; TI recommends local 1 µF + 0.1 µF bypassing within 1 cm of the VA pin to maintain 61.8 dB SNR performance.
How does the channel selection work on ADC104S021QIMMX/NOPB?
Channel selection is controlled via the 3-bit ADD2–ADD0 field in the 8-bit DIN control register loaded during each conversion frame. Valid combinations are: 000→IN1 (default), 001→IN2, 010→IN3, 011→IN4. The selected channel is sampled in the *next* conversion cycle, enabling deterministic multi-channel sequencing.
What is the minimum and maximum SCLK frequency supported by ADC104S021QIMMX/NOPB?
The ADC104S021QIMMX/NOPB supports SCLK frequencies from 0.8 MHz to 3.2 MHz, with 30–70% duty cycle. At 0.8 MHz, maximum sample rate is 50 ksps; at 3.2 MHz, it reaches 200 ksps. Performance is fully characterized across this range-no interpolation or extrapolation is required for design validation.
Is ADC104S021QIMMX/NOPB pin-compatible with other devices in the ADC104Sxx family?
Yes, ADC104S021QIMMX/NOPB shares identical 10-pin VSSOP (DGK) package, pinout, and serial interface protocol with ADC104S051 and ADC104S101. However, timing parameters and guaranteed performance ranges differ-substituting requires verification of sample rate, power, and AC specs for the target application.
ADC104S021QIMMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- ADC104S021
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- 4-Wire Serial, DSP, Microwire, QSPI, SPI
- 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:
- -
ADC104S021QIMMX/NOPB FAQ
1.How can I place an order for ADC104S021QIMMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC104S021QIMMX/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 ADC104S021QIMMX/NOPB reliable?
The price and inventory of ADC104S021QIMMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC104S021QIMMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC104S021QIMMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC104S021QIMMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC104S021QIMMX/NOPB?
ADC104S021QIMMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC104S021QIMMX/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 ADC104S021QIMMX/NOPB?
For technical support, including ADC104S021QIMMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC104S021QIMMX/NOPB requirements.
6.How does Aetrix verify that ADC104S021QIMMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC104S021QIMMX/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 ADC104S021QIMMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC104S021QIMMX/NOPB?
All ADC104S021QIMMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC104S021QIMMX/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 ADC104S021QIMMX/NOPB part is unused and in its original packaging.
Return procedure for ADC104S021QIMMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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