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Texas Instruments ADC124S101CIMMX
- Part No.:
- ADC124S101CIMMX
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADC124S101CIMMX.pdf
- Description:
- IC ADC 12BIT SAR 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,165
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Product details
Overview
ADC124S101CIMMX from Texas Instruments is a 12-bit, 4-channel successive-approximation ADC with serial SPI-compatible interface, operating at 500 ksps to 1 Msps sample rates, 72.4 dB SNR (typ), ±0.64 LSB INL (typ), and single-supply 2.7V–5.25V operation - used in portable instrumentation for multi-sensor analog signal digitization.
For engineers reviewing the ADC124S101CIMMX datasheet, ADC124S101CIMMX pinout, ADC124S101CIMMX application, or ADC124S101CIMMX equivalent, key selection considerations include its guaranteed no-missing-codes performance, channel-to-channel crosstalk of −86 dB, 16-cycle throughput time, power-down current of 0.14 µW (3V), and VSSOP-10 package compatibility with space-constrained embedded data acquisition systems.
Technical Context
The ADC124S101CIMMX implements a charge-redistribution SAR architecture with integrated track-and-hold, supporting four independent analog inputs (IN1–IN4) selectable via an 8-bit control register written on DIN during each conversion frame. Its internal logic synchronizes acquisition (3 SCLK cycles), conversion (13 SCLK cycles), and MSB-first serial readout over a single 10-pin VSSOP interface.
It operates across industrial temperature (−40°C to +85°C) with supply-independent timing: SCLK frequency range 50 kHz–16 MHz, DC input voltage range 0V to VA, and full-specification compliance over the entire 500 ksps–1 Msps sample rate range - eliminating interpolation or derating assumptions required by single-rate-specified converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with guaranteed no missing codes - ensures monotonicity and deterministic code mapping across full input range. |
| Sample Rate Range | 500 ksps to 1 Msps - fully specified performance without interpolation or derating across entire range. |
| INL / DNL | ±0.64 LSB / +0.9/−0.6 LSB (typ) - enables high-accuracy sensor measurement without calibration for many industrial applications. |
| SNR / SINAD | 72.4 dB / 72 dB (typ) - supports >11.7 ENOB for precision DC and low-frequency AC signal capture. |
| Power Consumption | 4.3 mW @ 3V / 13.1 mW @ 5V (normal mode); 0.14 µW @ 3V (shutdown) - enables battery-powered operation with rapid wake-up. |
| Analog Input Range | 0 V to VA - ratiometric operation simplifies design when using same supply for reference and sensor excitation. |
| Serial Interface | SPI/QSPI/MICROWIRE-compatible, MSB-first, 16-cycle frame - interoperable with standard microcontroller peripherals without protocol translation. |
Pinout & Package
ADC124S101CIMMX is housed in a 10-lead VSSOP (DGS) package - 3.0 mm × 3.0 mm body, 0.5 mm lead pitch, exposed thermal pad optional - optimized for compact PCB layouts and thermal management in dense mixed-signal systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS | Chip Select | Falling edge initiates conversion frame; high state enables power-down mode and tri-states DOUT. |
| 2 VA | Analog Supply | +2.7V to +5.25V analog rail; also serves as reference - requires local 1 µF + 0.1 µF bypassing. |
| 3 GND | Analog Ground | Common return for analog signals and supply; must be star-connected to minimize noise coupling. |
| 4–7 IN1–IN4 | Analog Inputs | Four single-ended channels; input voltage range 0 V to VA; 33 pF input capacitance in track mode. |
| 8 DIN | Serial Data Input | Loads 8-bit control register (ADD2:ADD0) on rising SCLK edges to select next channel. |
| 9 DOUT | Serial Data Output | Outputs 12-bit result MSB-first on falling SCLK edges; tri-stated when CS is high. |
| 10 SCLK | Serial Clock | Master clock (50 kHz–16 MHz); controls timing of conversion, acquisition, and data transfer. |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel multiplexed input | Reduces component count and board area vs. discrete ADCs; eliminates external MUX routing complexity. |
| Full-rate specification (500 ksps–1 Msps) | Eliminates need for datasheet interpolation or worst-case derating - simplifies system-level timing budgeting. |
| Low-power shutdown mode | 0.14 µW (3V) consumption enables microamp-level sleep states in portable systems without external enable circuitry. |
| Ratiometric operation | Input range = 0 to VA allows direct use of same supply for sensors and ADC - improves PSRR and reduces BOM cost. |
| −86 dB channel crosstalk | Enables simultaneous high-fidelity sampling of multiple analog sources (e.g., thermocouples, strain gauges) without interference. |
Applications
| Portable Instrumentation | Remote Sensor Nodes |
|---|---|
Use Scenario: Handheld multimeter acquiring voltage, current, and temperature readings from multiple transducers. IC Role / Device Role / Timing Role: 4-channel SAR ADC digitizing analog front-end outputs with 12-bit resolution and <16 µs throughput per channel. Use Value: Single-chip solution replaces multiple discrete ADCs; low 4.3 mW power enables >10-hour battery life at 500 ksps. |
Use Scenario: Wireless environmental monitor measuring soil moisture, air quality, and ambient light across four sensors. IC Role / Device Role / Timing Role: Low-power ADC performing burst-mode conversions synchronized to RF transmission intervals. Use Value: Shutdown current of 0.14 µW minimizes quiescent drain; SPI interface simplifies integration with sub-GHz MCU radios. |
| Industrial Control I/O Modules | Lab Equipment Signal Conditioning |
Use Scenario: PLC analog input card digitizing 4× 4–20 mA loop signals with cold-junction compensation. IC Role / Device Role / Timing Role: Precision ADC providing ratiometric conversion referenced to loop supply, with channel-to-channel matching ≤±1 LSB. Use Value: ±0.64 LSB INL and −86 dB crosstalk ensure accurate multi-channel process variable acquisition without software correction. |
Use Scenario: Benchtop oscilloscope auxiliary channel capturing slow-varying calibration references or auxiliary sensor data. IC Role / Device Role / Timing Role: Auxiliary 12-bit ADC operating at 1 Msps with 72.4 dB SNR for high-fidelity DC/low-frequency signal capture. Use Value: Straight-binary output and SPI compatibility enable seamless FPGA or ARM-based data aggregation without format translation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC124S051CIMMX | 500 ksps max sample rate; identical pinout, package, and interface; lower power (3.1 mW @ 3V). | Targeted at lower-throughput systems where 1 Msps is unnecessary - e.g., static sensor monitoring. | Select when maximum sample rate requirement is ≤500 ksps and lowest possible active power is critical. |
| ADC124S021CIMMX | 200 ksps max sample rate; same footprint and control register; reduced dynamic performance (68 dB SNR). | Suitable for cost-sensitive, low-bandwidth applications like basic temperature logging or HVAC control. | Choose for legacy designs migrating from older TI 12-bit ADCs or where SNR >70 dB is not required. |
Compared with ADC124S051CIMMX and ADC124S021CIMMX, the ADC124S101CIMMX delivers full 1 Msps capability with highest SNR (72.4 dB) and lowest INL (±0.64 LSB), making it the optimal choice for new designs requiring maximum throughput and precision within the same 10-pin VSSOP footprint.
Availability
ADC124S101CIMMX is available at Aetrix Electronics and suitable for portable instrumentation, remote sensor nodes, and industrial control I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed no-missing-codes performance.
Supply support for ADC124S101CIMMX 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 over 90 years of innovation in precision data conversion.
The ADC124S101CIMMX belongs to TI's precision SAR ADC product line, designed specifically for space- and power-constrained industrial, portable, and remote sensing applications requiring multi-channel, high-resolution digitization without external support components.
FAQ
What is the minimum and maximum sample rate supported by the ADC124S101CIMMX?
The ADC124S101CIMMX is fully specified from 500 ksps to 1 Msps - unlike many SAR ADCs rated only at a single rate, all electrical characteristics including INL, SNR, and crosstalk are guaranteed across this entire range. This eliminates interpolation uncertainty and simplifies timing validation in variable-rate systems such as adaptive data loggers or event-triggered acquisition.
Does the ADC124S101CIMMX require an external reference voltage?
No, the ADC124S101CIMMX uses its VA supply pin as the reference - it is ratiometric with 0 V to VA input range and straight-binary output. This eliminates need for external reference ICs or precision dividers, reducing BOM count and layout complexity while maintaining accuracy proportional to supply stability.
How does the ADC124S101CIMMX handle channel selection between conversions?
The ADC124S101CIMMX uses an 8-bit control register loaded via DIN during each 16-cycle serial frame. Bits ADD2–ADD0 (bits 5–3) determine the next channel (IN1–IN4) to be sampled, allowing dynamic, frame-by-frame channel sequencing without reconfiguring hardware or inserting dead time between conversions.
What is the power consumption of the ADC124S101CIMMX in shutdown mode?
In shutdown mode (CS high), the ADC124S101CIMMX draws just 0.14 µW at +3V supply and 0.32 µW at +5V supply - enabling ultra-low-quiescent operation in battery-powered devices. The device wakes instantly upon CS assertion, with no power-up delay or dummy conversions required before valid data appears on DOUT.
Is the ADC124S101CIMMX pin-compatible with other members of the ADC124Sxx1 family?
Yes, the ADC124S101CIMMX is fully pin- and function-compatible with ADC124S051CIMMX and ADC124S021CIMMX per TI's datasheet Table 1. All share identical 10-pin VSSOP (DGS) packaging, pin assignments, control register structure, and serial interface timing - enabling drop-in upgrades or downgrades based on throughput and performance requirements.
ADC124S101CIMMX 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:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1M
- 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:
- -
ADC124S101CIMMX FAQ
1.How can I place an order for ADC124S101CIMMX through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC124S101CIMMX 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 ADC124S101CIMMX reliable?
The price and inventory of ADC124S101CIMMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC124S101CIMMX is usually 5 days.
3.What payment methods are accepted for ADC124S101CIMMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC124S101CIMMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC124S101CIMMX?
ADC124S101CIMMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC124S101CIMMX 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 ADC124S101CIMMX?
For technical support, including ADC124S101CIMMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC124S101CIMMX requirements.
6.How does Aetrix verify that ADC124S101CIMMX is sourced from the original manufacturer or authorized distributors?
All ADC124S101CIMMX 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 ADC124S101CIMMX meets industry standards.
7.What is the process for return or replacement of ADC124S101CIMMX?
All ADC124S101CIMMX units undergo pre-shipment inspection (PSI). If there is an issue with ADC124S101CIMMX, 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 ADC124S101CIMMX part is unused and in its original packaging.
Return procedure for ADC124S101CIMMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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