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Texas Instruments ADC12130CIWMX/NOPB
- Part No.:
- ADC12130CIWMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADC12130CIWMX/NOPB.pdf
- Description:
- IC ADC 12BIT SAR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,536
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Product details
Overview
ADC12130CIWMX/NOPB from Texas Instruments is a self-calibrating 12-bit plus sign successive approximation analog-to-digital converter with integrated 2-channel multiplexer, sample/hold, and serial MICROWIRE/SPI/QSPI interface. It operates from a single 3.3V or 5V supply, delivers ≤±2 LSB integral linearity error after auto-calibration, and achieves 14 μs max throughput time. It is used in pen-based computers and digitizers for high-accuracy position sensing with minimal external support circuitry.
For engineers reviewing the ADC12130CIWMX/NOPB datasheet, ADC12130CIWMX/NOPB pinout, ADC12130CIWMX/NOPB application, or ADC12130CIWMX/NOPB equivalent, key selection criteria include its programmable acquisition time (6–34 tCK), 12-bit + sign output format supporting differential/pseudo-differential modes, no zero/full-scale adjustment requirement, and compatibility with 5 MHz CCLK/SCLK timing.
Technical Context
The ADC12130CIWMX/NOPB implements a successive approximation register (SAR) architecture with on-chip self-calibration that corrects linearity, offset, and full-scale errors to ≤±2 LSB. Its 2-channel analog multiplexer feeds internal A/DIN1 and A/DIN2 inputs, with MUXOUT1/MUXOUT2 pins exposed for external signal conditioning.
Serial communication uses a 3-wire MICROWIRE-compatible interface (CS, SCLK, DO, DI) with EOC and DOR status signals. Conversion clock (CCLK) and serial clock (SCLK) are independent, enabling flexible timing control; acquisition time is programmable via mode register settings (6/10/18/34 clock cycles).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit plus sign - supports signed differential measurements with unipolar 0V–5V input range using single 5V supply. |
| Conversion time | 8.8 μs max - enables ≥114 kSPS sampling rate at 5 MHz CCLK for real-time position or sensor data capture. |
| Throughput time | 14 μs max - includes acquisition and conversion; determines minimum inter-sample interval in continuous mode. |
| Integral linearity | ±2 LSB max after auto-cal - ensures monotonicity and <0.05% FSR error without external trimming. |
| Power consumption | +5V: 33 mW max active; +3.3V: 15 mW max active - suitable for low-power portable digitizer subsystems. |
| Supply voltage | 3.0V–5.5V - supports both 3.3V and 5V system rails without level-shifting. |
| Operating temp | −40°C to +85°C - qualified for industrial and embedded computing environments. |
Pinout & Package
ADC12130CIWMX/NOPB is housed in a 20-pin SSOP package (Package Number NFG0020A per TI documentation), with 0.65 mm lead pitch and body dimensions of 7.2 mm × 5.3 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0, CH1 | Analog multiplexer inputs | Selectable single-ended or differential channels; voltage must stay within GND to VA+ to avoid corruption. |
| COM | Pseudo-ground reference | Used as common-mode reference in single-ended mode; ties to AGND or system reference point. |
| A/DIN1, A/DIN2 | ADC core analog inputs | Accept conditioned outputs from MUXOUT1/MUXOUT2; require protection if external gain/filter stages are used. |
| DO, DI, SCLK, CS | Serial interface I/O | MICROWIRE/SPI/QSPI-compatible 3-wire bus; DO is push-pull, DI/SCLK/CS are TTL-level compatible. |
| EOC, DOR | Conversion status indicators | EOC goes high at conversion end; DOR pulses high after final bit shift-out - enables precise software synchronization. |
| CCLK | Internal conversion clock input | Drives SAR logic; 1–10 MHz range sets conversion speed and acquisition time granularity. |
| PD | Power-down control | High = power-down (100 μW typ @ 5V); low = active; 700 μs wake-up time required before first valid conversion. |
| VREF+, VREF− | Reference voltage inputs | Support 1.0V–5.0V reference span; VREF− must be ≥GND and ≤(VREF+ −1V); bypassing critical for accuracy. |
| VA+, VD+, AGND, DGND | Power and ground terminals | Separate analog/digital supplies and grounds - mandatory for noise isolation; VA+/VD+ must be tied but bypassed independently. |
Key Features
| Feature | Design Value |
|---|---|
| Self-calibration | On-demand auto-calibration reduces linearity, offset, and full-scale errors to ≤±2 LSB without external components or factory trim. |
| Programmable acquisition time | Four selectable settings (6/10/18/34 CCLK cycles) allow optimization of sampling speed vs. settling time for diverse sensor sources. |
| 12-bit plus sign output format | Enables true bipolar measurement (e.g., ±2.5V) with unipolar supply by encoding negative values in two's complement + sign bit. |
| No zero/full-scale adjustment | Eliminates manual calibration steps during production; simplifies BOM and reduces test time in digitizer and GPS receiver assemblies. |
| Single-supply operation | Operates from 3.3V or 5V only - removes need for dual-rail supplies in portable pen-computer and handheld data-acquisition systems. |
Applications
| Pen-Based Computers | Digitizers |
|---|---|
|
Use Scenario: Capturing stylus X/Y coordinate voltage from resistive touch overlay in tablet PCs. IC Role / Device Role / Timing Role: ADC12130CIWMX/NOPB digitizes analog pen-tip voltages with 12-bit + sign resolution and ≤14 μs latency per axis. Use Value: Enables sub-millimeter positional accuracy and fast response (<8.8 μs conversion) without external op-amps or reference buffers. |
Use Scenario: Converting analog position signals from electromagnetic digitizer tablets used in CAD and signature capture. IC Role / Device Role / Timing Role: ADC12130CIWMX/NOPB serves as the primary A/D front-end for dual-axis analog position sensors with programmable acquisition. Use Value: Self-calibration maintains linearity across temperature (−40°C to +85°C), reducing drift-induced calibration recalibration in field-deployed units. |
| Global Positioning Systems | Industrial Data Loggers |
|
Use Scenario: Digitizing analog RF front-end AGC or antenna signal strength indicators in GPS receivers. IC Role / Device Role / Timing Role: ADC12130CIWMX/NOPB interfaces to baseband processor via SPI, providing calibrated 12-bit + sign readings of RSSI-like signals. Use Value: No zero/full-scale adjustment required allows drop-in replacement in legacy GPS modules while maintaining ±2 LSB linearity over life. |
Use Scenario: Sampling analog sensor outputs (temperature, pressure, current) in battery-powered environmental monitoring nodes. IC Role / Device Role / Timing Role: ADC12130CIWMX/NOPB operates in low-power mode (40 μW @ 3.3V) between triggered measurements, extending battery life. Use Value: Programmable acquisition time and power-down mode enable adaptive sampling strategies aligned with sensor dynamics and energy budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, 2.7V–5.25V supply, no internal MUX, SPI-only interface, 2.5 μs conversion time. | Lower resolution and no self-calibration; suited for cost-sensitive, non-critical sensor monitoring. | Choose ADS7822U only when 12-bit precision and linearity stability are not required; not suitable for pen-computer position sensing. |
| ADS8320EB/250 | 16-bit resolution, 2.7V–5.25V supply, no MUX, SPI interface, 4.5 μs conversion, external reference required. | Higher resolution but lacks on-chip calibration and multiplexer; requires external reference and driver amplifiers. | Choose ADS8320EB/250 when absolute accuracy >12-bit is needed and board space allows added support components; not pin-compatible. |
Compared with ADS7822U and ADS8320EB/250, ADC12130CIWMX/NOPB uniquely combines self-calibration, integrated 2-channel MUX, and 12-bit + sign output in a single 20-pin SSOP package - delivering verified linearity stability and simplified design for portable digitizer and GPS front-end applications.
Availability
ADC12130CIWMX/NOPB is available at Aetrix Electronics and suitable for pen-based computers, digitizers, global positioning systems, and industrial data loggers requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for ADC12130CIWMX/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 industrial-grade ICs.
The ADC12130CIWMX/NOPB belongs to TI's legacy high-accuracy SAR ADC family designed specifically for portable and embedded measurement systems where self-calibration, low power, and serial interface simplicity are critical.
FAQ
What is the maximum clock frequency supported by ADC12130CIWMX/NOPB for CCLK and SCLK?
ADC12130CIWMX/NOPB supports up to 10 MHz for the conversion clock (CCLK) and 10 MHz for the serial clock (SCLK), with minimum frequencies of 1 MHz and 0 Hz respectively. At 5 MHz, it achieves 8.8 μs max conversion time and 14 μs max throughput time. Both clocks require 40–60% duty cycle and ≤1 μs edge transition times to ensure reliable operation.
Does ADC12130CIWMX/NOPB require external zero or full-scale calibration components?
No, ADC12130CIWMX/NOPB does not require external zero or full-scale calibration components. Its on-chip self-calibration process adjusts linearity, offset, and full-scale errors to ≤±2 LSB each, eliminating manual trimming. This capability is confirmed in the SNAS098G datasheet and applies across the full −40°C to +85°C operating range.
What analog input configurations does ADC12130CIWMX/NOPB support?
ADC12130CIWMX/NOPB supports single-ended, differential, and pseudo-differential analog input modes. Its 2-channel MUX allows CH0/CH1 selection, and the 12-bit plus sign output format enables accurate representation of negative differential inputs even when the negative input exceeds the positive input - a key feature for robust sensor interfacing.
How does the power-down mode function on ADC12130CIWMX/NOPB?
ADC12130CIWMX/NOPB enters power-down mode when the PD pin is driven high, reducing supply current to 100 μW (typ) at +5V or 40 μW (typ) at +3.3V. After PD is pulled low, the device requires up to 700 μs to stabilize before the first valid conversion. During power-down, serial interface remains functional but conversions are inhibited until wake-up completes.
Is ADC12130CIWMX/NOPB pin-compatible with other members of the ADC1213x family?
ADC12130CIWMX/NOPB shares the same 20-pin SSOP package (NFG0020A) and pinout with ADC12132CIWM and ADC12138CIWM, but differs in MUX channel count: ADC12130 has 2 channels, ADC12132 has 2 channels (same pinout), and ADC12138 has 8 channels (different pinout). Thus, ADC12130CIWMX/NOPB is pin-compatible with ADC12132CIWM only - not with ADC12138CIWM.
ADC12130CIWMX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 114k
- Number of Inputs:
- 1, 2
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 3V ~ 5.5V
- Voltage - Supply, Digital:
- 3V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC12130CIWMX/NOPB FAQ
1.How can I place an order for ADC12130CIWMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12130CIWMX/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 ADC12130CIWMX/NOPB reliable?
The price and inventory of ADC12130CIWMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12130CIWMX/NOPB is usually 5 days.
3.What payment methods are accepted for ADC12130CIWMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12130CIWMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12130CIWMX/NOPB?
ADC12130CIWMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12130CIWMX/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 ADC12130CIWMX/NOPB?
For technical support, including ADC12130CIWMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12130CIWMX/NOPB requirements.
6.How does Aetrix verify that ADC12130CIWMX/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC12130CIWMX/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 ADC12130CIWMX/NOPB meets industry standards.
7.What is the process for return or replacement of ADC12130CIWMX/NOPB?
All ADC12130CIWMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC12130CIWMX/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 ADC12130CIWMX/NOPB part is unused and in its original packaging.
Return procedure for ADC12130CIWMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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