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Texas Instruments ADC12130CIWM/NOPB
- Part No.:
- ADC12130CIWM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADC12130CIWM/NOPB.pdf
- Description:
- IC ADC 12BIT SAR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,561
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Product details
Overview
ADC12130CIWM/NOPB from Texas Instruments is a self-calibrating 12-bit plus sign successive approximation ADC with integrated 2-channel analog multiplexer, serial MICROWIRE/SPI/QSPI interface, and on-chip sample/hold. It delivers 8.8 μs max conversion time, ±2 LSB integral linearity error, and operates from single 3.3V or 5V supply - used in pen-based computers and GPS receivers for high-accuracy analog signal digitization.
For engineers reviewing the ADC12130CIWM/NOPB datasheet, ADC12130CIWM/NOPB pinout, ADC12130CIWM/NOPB application, or ADC12130CIWM/NOPB equivalent, key selection criteria include its 2-channel MUX architecture, programmable acquisition time (6–34 tCK), 12-bit + sign output format, differential/unipolar input flexibility, and guaranteed self-calibration performance across −40°C to +85°C.
Technical Context
The ADC12130CIWM/NOPB implements a successive approximation register (SAR) architecture with internal sample-and-hold and a configurable 2-channel analog multiplexer. Its MUX outputs (MUXOUT1/MUXOUT2) are internally connected to A/DIN1/A/DIN2, eliminating external routing for basic operation.
Serial communication complies with MICROWIRE, SPI, and QSPI protocols using CS, SCLK, DI, DO, EOC, and DOR signals. Conversion clock (CCLK) and serial clock (SCLK) may share source but require independent duty cycle control (40–60%); self-calibration completes in ≤988.8 μs and corrects zero, full-scale, and linearity errors to ±2 LSB max.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit plus sign - supports signed differential measurements and unipolar 0–5 V inputs without external level-shifting. |
| Conversion time | 8.8 μs (max) - enables ≥113.6 kSPS throughput with minimal latency for real-time position or sensor sampling. |
| Integral linearity | ±2 LSB (max) - guaranteed after self-calibration, ensuring monotonicity and <0.05% FSR error in precision measurement. |
| Supply range | +3.0 V to +5.5 V - compatible with both 3.3 V and 5 V system rails; VA+ and VD+ must be tied together with separate bypassing. |
| Operating temperature | −40°C to +85°C - qualified for industrial and automotive-adjacent embedded environments including GPS modules. |
| Power consumption | 15 mW (max @ 3.3 V), 33 mW (max @ 5 V) - low active power supports battery-sensitive portable digitizers. |
| Input configuration | Single-ended, pseudo-differential, or fully differential - selectable via mode register; COM pin serves as pseudo-ground reference. |
Pinout & Package
ADC12130CIWM/NOPB is housed in a 20-pin SSOP (Shrink Small Outline Package) with 0.65 mm lead pitch, JEDEC MO-153 compliant, thermal resistance θJA = 70°C/W. The package supports surface-mount reflow per TI's recommended profile (vapor phase: 215°C, 60 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0, CH1 | Analog multiplexer inputs | Selectable 2-channel analog inputs; voltage must stay within GND to VA+ to avoid corruption of selected channel readings. |
| COM | Pseudo-ground reference | Used in single-ended mode to define common-mode baseline; not internally connected to AGND. |
| A/DIN1, A/DIN2 | ADC core analog inputs | Internally connected to MUXOUT1/MUXOUT2 in ADC12130; accept differential or unipolar signals up to VA+. |
| DO, DI, SCLK, CS | Serial interface I/O | Full MICROWIRE/SPI/QSPI compatibility; DO is push-pull, DI/SCLK/CS are TTL-compatible with 0.8 V / 2.0 V thresholds. |
| EOC, DOR | Conversion status indicators | EOC goes high at conversion end; DOR pulses low during data shift-out - enables precise timing of read cycles. |
| VREF+, VREF− | Reference voltage terminals | Accept 1.0–5.0 V differential reference; VREF− must be ≥ GND and ≤ VREF+; bypassing required per Figure 63. |
| VA+, VD+, AGND, DGND | Power and ground | Separate analog/digital supplies (VA+, VD+) must be tied externally; AGND/DGND kept isolated on PCB to minimize noise coupling. |
| PD, CONV, CCLK | Control and clock inputs | PD enables hardware power-down (≤100 μW @ 5 V); CCLK drives SAR logic (1–10 MHz); CONV initiates conversion in software mode. |
Key Features
| Feature | Design Value |
|---|---|
| Self-calibration | Automatically corrects offset, full-scale, and linearity errors to ≤±2 LSB without external calibration components or firmware overhead. |
| Programmable acquisition time | Configurable 6–34 CCLK cycles (1.2–7.0 μs @ 5 MHz) - adapts sampling window to source impedance and settling requirements. |
| 12-bit plus sign output format | Enables true bipolar measurement (−2048 to +2047) with differential inputs where negative input exceeds positive input - no external op-amp needed. |
| Single-supply operation | Operates from 3.3 V or 5 V only - eliminates need for dual-rail supplies while supporting 0–5 V unipolar or ±2.5 V differential ranges. |
| No zero/full-scale adjustment | Factory-trimmed and self-calibrating design removes manual potentiometer tuning, reducing BOM count and production test time. |
Applications
| Pen-Based Computing | GPS Receiver Front-End |
|---|---|
|
Use Scenario: Digitizing analog voltage from resistive touch overlay or stylus tip position sensing circuitry. IC Role / Device Role / Timing Role: ADC12130CIWM/NOPB performs high-speed, low-latency sampling of X/Y coordinate voltages with built-in MUX switching between axes. Use Value: 8.8 μs conversion time and 2-channel MUX enable sub-millisecond coordinate updates; self-calibration maintains linearity across temperature drift in handheld devices. |
Use Scenario: Converting IF or baseband analog signals from GPS RF front-end before digital correlation and position calculation. IC Role / Device Role / Timing Role: ADC12130CIWM/NOPB digitizes differential I/Q signals with 77 dB SNR at 1 kHz, supporting accurate carrier-phase tracking. Use Value: Differential input mode rejects common-mode noise from RF sections; ±2 LSB INL ensures consistent pseudorange measurement accuracy over operating temperature. |
| Digitizer Tablets | Industrial Sensor Interface |
|
Use Scenario: Acquiring analog output from pressure, temperature, or proximity sensors in multi-channel industrial digitizer systems. IC Role / Device Role / Timing Role: ADC12130CIWM/NOPB acts as local signal conditioner and digitizer, interfacing directly to microcontroller SPI bus with minimal glue logic. Use Value: Programmable acquisition time accommodates slow-settling sensors; 3.3 V/5 V supply flexibility simplifies integration into legacy 5 V or modern 3.3 V control modules. |
Use Scenario: Monitoring analog feedback signals (e.g., motor current, voltage rails) in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: ADC12130CIWM/NOPB provides isolated, calibrated analog input channel with status signaling (EOC/DOR) for deterministic firmware polling. Use Value: Power-down mode (≤100 μW @ 5 V) reduces idle power in always-on monitoring; −40°C to +85°C rating ensures reliability in factory-floor enclosures. |
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-pin MSOP, 12-bit SAR, no internal MUX, 2.7–5.25 V supply, 1.5 μs conversion time. | Lacks multiplexer and self-calibration; requires external zero/full-scale trim and external MUX for multi-channel use. | Choose ADS7822U when board space is critical and single-channel, ultra-fast sampling (<2 μs) is prioritized over calibration autonomy. |
| ADS8320EB | 16-pin SOIC, 16-bit SAR, no MUX, 2.7–5.25 V, 4.5 μs conversion, external reference required. | Higher resolution but no self-calibration or MUX; consumes more power (12 mW @ 5 V) and lacks COM/pseudo-differential support. | Choose ADS8320EB when 16-bit precision is mandatory and system-level calibration infrastructure already exists. |
Compared with ADS7822U and ADS8320EB, ADC12130CIWM/NOPB uniquely integrates a 2-channel MUX and factory/self-calibrated 12-bit + sign architecture - reducing component count and firmware complexity in cost-sensitive, multi-signal embedded measurement systems without sacrificing linearity or temperature stability.
Availability
ADC12130CIWM/NOPB is available at Aetrix Electronics and suitable for pen-based computing, GPS receiver design, digitizer tablets, and industrial sensor interface applications requiring stable component supply and long-term manufacturability.
Supply support for ADC12130CIWM/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 IC design.
ADC12130CIWM/NOPB belongs to TI's legacy high-accuracy SAR ADC family targeting portable and embedded measurement systems - designed for applications demanding self-calibration, low power, and flexible analog input configurations without external support components.
FAQ
What is the maximum clock frequency supported by ADC12130CIWM/NOPB for CCLK and SCLK?
ADC12130CIWM/NOPB supports CCLK (conversion clock) up to 10 MHz and SCLK (serial clock) up to 5 MHz. Both clocks require 40–60% duty cycle; timing margins assume TTL-level transitions. Exceeding these frequencies risks incomplete conversions or corrupted serial data reads - verified per SNAS098G AC Electrical Characteristics table.
Does ADC12130CIWM/NOPB require external zero or full-scale calibration components?
No. ADC12130CIWM/NOPB performs automatic self-calibration on power-up or via command, correcting offset, full-scale, and integral linearity errors to ≤±2 LSB without external trims, resistors, or capacitors. This eliminates manual calibration steps and improves production yield in volume manufacturing.
Can ADC12130CIWM/NOPB operate with a 3.3 V supply and still achieve full 12-bit + sign performance?
Yes. ADC12130CIWM/NOPB is fully specified at 3.3 V ±10%, delivering 12-bit + sign resolution, ±2 LSB INL, and 8.8 μs max conversion time. Reference voltage must be scaled accordingly (e.g., 2.5 V for 610 μV LSB), and VA+/VD+ must remain within 100 mV differential per operating ratings.
How does the 2-channel multiplexer in ADC12130CIWM/NOPB differ from those in ADC12132 or ADC12138?
ADC12130CIWM/NOPB integrates a dedicated 2-channel MUX with internal connection between MUXOUT1→A/DIN1 and MUXOUT2→A/DIN2 - no external routing needed. In contrast, ADC12132 offers 2-channel MUX with exposed MUXOUT pins, and ADC12138 provides 8-channel MUX; all share identical core ADC, calibration, and serial interface functionality.
What is the purpose of the COM pin on ADC12130CIWM/NOPB, and how should it be used?
The COM pin on ADC12130CIWM/NOPB serves as a pseudo-ground reference in single-ended analog input mode, allowing CH0 or CH1 to be measured relative to a user-defined common point instead of AGND. It must be driven within GND to VA+ and is not internally connected to AGND - enabling flexible biasing in ratiometric or isolated sensor interfaces.
ADC12130CIWM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- -
ADC12130CIWM/NOPB FAQ
1.How can I place an order for ADC12130CIWM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC12130CIWM/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 ADC12130CIWM/NOPB reliable?
The price and inventory of ADC12130CIWM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC12130CIWM/NOPB is usually 5 days.
3.What payment methods are accepted for ADC12130CIWM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC12130CIWM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC12130CIWM/NOPB?
ADC12130CIWM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC12130CIWM/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 ADC12130CIWM/NOPB?
For technical support, including ADC12130CIWM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC12130CIWM/NOPB requirements.
6.How does Aetrix verify that ADC12130CIWM/NOPB is sourced from the original manufacturer or authorized distributors?
All ADC12130CIWM/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 ADC12130CIWM/NOPB meets industry standards.
7.What is the process for return or replacement of ADC12130CIWM/NOPB?
All ADC12130CIWM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with ADC12130CIWM/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 ADC12130CIWM/NOPB part is unused and in its original packaging.
Return procedure for ADC12130CIWM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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