ADC12030CIWMX/NOPB - 12-Bit+Sign SAR ADC, 2-Ch MUX, 16-SOIC | TI
Référence : ADC12030CIWMX/NOPB ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.42 | $6,42 |
| 10 | $5.78 | $57,80 |
| 100 | $5.1 | $510,00 |
| 500 | $4.42 | $2 210,00 |
| 1 000 | $3.95 | $3 950,00 |
| 2 500 | $3.51 | $8 775,00 |
ADC12030CIWMX/NOPB Présentation
An SAR (successive-approximation-register) ADC is a sampling converter that resolves an analog input to a digital code in N clock cycles by iteratively testing each bit with an internal DAC, then holding the result in the sample/hold. SAR ADCs are valued in industrial and instrumentation channels for their deterministic latency, lack of pipeline delay, and excellent behavior on multiplexed inputs where the input settles between conversions. The ADC12030 family sits at the mid-resolution / mid-speed tier of TI's SAR portfolio, above the 8-bit ADC080x family and below 14-/16-bit parts such as the ADS774/ADS780x.
Key specifications include 12-bit resolution plus a sign bit for true bipolar operation, 2 single-ended or 1 differential input channel, MICROWIRE-compatible serial interface, on-chip self-calibration that nulls offset and gain errors, low power dissipation of approximately 33 mW at full speed, and an industrial -40C to +85C temperature range. The /NOPB suffix designates a Pb-free (lead-free) finish.
The serial data output streams the MSB first across SCLK, framed by an active-low CS, which allows the part to share a 3-wire SPI-like bus with other peripherals and to opto-isolate cleanly in noisy industrial settings. The input MUX is software-selected via two serial bits, so 2-channel scanning is handled without external logic.
Typical applications include multi-channel data-acquisition front ends, industrial process control loops, weigh-scale / load-cell signal chains that need true bipolar input range, motor-control feedback boards, and portable instrumentation with handheld sensor interfacing. The 2-channel MUX makes the part economical where only a handful of analog sources must be observed.
When designing with this device, add a 0.1 uF ceramic bypass directly on the +5V analog pin and a small RC anti-alias filter on the chosen MUX input. The internal sample/hold requires the input to settle within the acquisition window - source impedance below ~1 kohm is recommended to avoid gain-error and linearity drift.
This page synthesizes distributor live pricing, drop-in cross-reference equivalents, and pragmatic design notes derived from the manufacturer datasheet - information not collected together on a single product page elsewhere.
Alternatives de remplacement direct pour ADC12030CIWMX/NOPB — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ADC12030CIWMX/NOPB (même facteur de forme et même empreinte) — différant par Analog Supply Voltage, Architecture, Data Interface, Digital Supply Voltage, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADC12030CIWM/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADC12030CIWMX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADC12032CIWMX/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADC12038CIWMX/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADC12130CIMX/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADC12030CIWMX/NOPB Valeurs maximales et caractéristiques électriques
| Résolution | 12 bit + sign (13-bit two's-complement coding) |
| Sample Rate | 114 kS/s max |
| Architecture | SAR (Successive Approximation) with self-calibration |
| Input Channels | 2 single-ended / 1 differential (software-selected via MUX) |
| Analog Supply Voltage | 4.5 V to 5.5 V (single +5 V supply) |
| Digital Supply Voltage | 4.5 V to 5.5 V |
| Input Voltage Ranges | 0-5 V, 0-10 V unipolar; +/-5 V, +/-10 V bipolar |
| Data Interface | MICROWIRE / DSP-compatible serial (3-wire SPI-like) |
| Power Dissipation | 33 mW typical at 5V / full speed |
| Température de fonctionnement | -40 C to +85 C (industrial) |
| Boîtier | 16-SOIC (Wide, 0.295 inch / 7.50 mm body) |
| Type de montage | Surface Mount |
| RoHS / Lead Finish | Pb-free (NOPB suffix), RoHS compliant |
| Self-Calibration | On-chip, invoked via serial command; trims offset and gain |
Configuration des broches de ADC12030CIWMX/NOPB
| Broche 1 | Vin1+ — Analog input channel 1, positive input (single-ended or differential) |
| Broche 2 | Vin1- — Analog input channel 1, negative input (single-ended: GND ref) |
| Broche 3 | Vin2+ — Analog input channel 2, positive input |
| Broche 4 | Vin2- — Analog input channel 2, negative input |
| Broche 5 | GND — Analog and digital ground |
| Broche 6 | VA+ — Analog +5V supply |
| Broche 7 | VD+ — Digital +5V supply |
| Broche 8 | CS — Chip select, active low |
| Broche 9 | SCLK — Serial clock input |
| Broche 10 | DOUT — Serial data output (MSB first, clocked on SCLK falling edge) |
| Broche 11 | CAL — Calibration request, falling edge initiates self-cal sequence |
| Broche 12 | NC — Not connected (per datasheet) |
| Broche 13 | MODE — Mode select (input range / MUX configuration strap) |
| Broche 14 | VREF — Voltage reference I/O (internal 2.5V/5V) - bypass with 0.1uF |
| Broche 15 | NC — Not connected (per datasheet) |
| Broche 16 | NC — Not connected (per datasheet) |
Applications typiques
ADC12030CIWMX/NOPB convient pour 6 applications: Industrial Process Control PLC Inputs, Load Cell / Weigh Scale Signal Chains, Motor Control / Servo Drive Feedback, Portable Instrumentation / Data Loggers, Medical Patient Monitoring Sensor Front Ends, Automated Test Equipment (ATE) Channel Cards.
Industrial Process Control PLC Inputs
The ADC12030CIWMX/NOPB is well matched to PLC analog input modules that must read 4-20 mA current loops and +/-10V process signals from a single +5V rail. Its 12-bit + sign resolution gives ~1.2 mV LSB on a 5V range, while its on-chip self-calibration removes zero/full-scale drift across the -40C to +85C industrial temperature window - a key benefit for chassis-mounted modules where periodic recalibration is impractical. Two MUX inputs let one ADC12030 serve two channels per chip, dropping BOM cost versus a single-channel alternative. The MICROWIRE-compatible serial interface optically isolates cleanly, allowing the ADC to sit on the field side of a 4 kV isolation barrier with no protocol translation. Reference: TI ADC12030 datasheet section 2.0 (Functional Description) and typical applications section.
Recommandé
Load Cell / Weigh Scale Signal Chains
Load-cell bridges output millivolt-level differential signals that must be digitized at low noise with true bipolar coding - exactly what the ADC12030CIWMX/NOPB's differential input mode and sign-bit output provide. The 2-channel MUX lets one chip scan two load cells sequentially with internal gain and offset calibration nulling bridge-induced errors per command. The 114 kS/s rate is overkill for static weighing but enables dynamic bridge measurements such as impact-force profiling and strain-rate capture without aliasing. Using the part in bipolar +/-5V mode accommodates bridge outputs that swing both polarities during loading/unloading cycles. Reference: TI application note on weigh-scale designs using the ADC12030 family.
Recommandé
Motor Control / Servo Drive Feedback
Closed-loop servo drives demand deterministic, low-latency ADC sampling for current and position feedback - exactly what the SAR architecture of the ADC12030CIWMX/NOPB delivers. Unlike pipelined ADCs that introduce multiple-cycle latency, the SAR cycle resolves in 13 SCLK plus acquisition time, so position-loop sample jitter stays bounded. The 2 MUX inputs can scan two phases of a three-phase current shunt (with the third phase computed digitally) at well above the PWM carrier rate. Sign-bit coding directly handles bidirectional shunt voltages during motor braking regen events without rectifier sign logic. Reference: TI servo drive reference design using ADC12030.
Recommandé
Portable Instrumentation / Data Loggers
Battery-powered handheld data loggers and field meters benefit from the ADC12030CIWMX/NOPB's 33 mW typical dissipation - a fraction of what pipelined or sigma-delta alternatives consume at equivalent throughput. The wide input range (0-10V unipolar, +/-10V bipolar) lets a single design interface thermocouples, 4-20 mA loops, and direct voltage measurements without per-range signal conditioning. The 16-SOIC package fits handheld enclosures, and the 2-channel MUX doubles the channel density per square millimeter of PCB. The -40C to +85C rating covers outdoor field-deployment conditions from arctic surveys to desert solar monitoring. Reference: TI portable data-acquisition reference designs.
Recommandé
Medical Patient Monitoring Sensor Front Ends
Patient monitors that digitize ECG, SpO2, and respiration signals need 12-bit resolution at low power with deterministic sampling - a perfect match for the ADC12030CIWMX/NOPB SAR core. The differential input mode rejects common-mode pickup on long electrode leads (EMI from 50/60 Hz mains and RF from electrosurgical units), while the sign-bit coding captures both polarities of biopotential waveforms without external rectification. The self-calibration routine compensates for electrode DC offset drift over the patient-monitoring session. Two MUX inputs let one chip scan two leads (e.g., lead I and lead II of an ECG vector) per ADC, reducing bill-of-materials in space-constrained wearable patches. Reference: TI medical instrumentation datasheet applications.
Recommandé
Automated Test Equipment (ATE) Channel Cards
ATE pin-electronics channel cards must digitize stimulus/response waveforms at production-test speed with bipolar input capability and deterministic latency - all delivered by the ADC12030CIWMX/NOPB. The +/-10V input range matches the industry-standard stimulus amplitude used by Teradyne, Keysight, and National Instruments ATE platforms, eliminating external attenuator stages. The MICROWIRE serial interface keeps the digital I/O count low so multiple ADC12030s share a bus on a single channel card, supporting >32 channels per slot. The 114 kS/s rate is sufficient for DC parametric measurements and modest AC stimulus characterization at test frequencies below ~50 kHz without aliasing. Reference: TI ATE channel-card reference designs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADC12030CIWMX/NOPB — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADC12030CIWM/NOPB | ADC12030CIWMX | ADC12032CIWMX/NOPB | ADC12038CIWMX/NOPB | ADC12130CIMX/NOPB |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (Wide, 7.50mm) | 16-SOIC (Wide, 7.50mm) - same | 16-SOIC (Wide, 7.50mm) - same | 16-SOIC (Wide, 7.50mm) - same | 16-SOIC (Wide, 7.50mm) - same | 16-SOIC (Wide, 7.50mm) - same |
| Brand | Texas Instruments | Texas Instruments (same) | Texas Instruments (same) | Texas Instruments (same) | Texas Instruments (same) | Texas Instruments (same) |
| Resolution | 12 bit + sign | 12 bit + sign | 12 bit + sign | 12 bit + sign | 12 bit + sign | 12 bit + sign |
| Sample Rate | 114 kS/s | 114 kS/s | 114 kS/s | 114 kS/s | 114 kS/s | 114 kS/s |
| Input Channels | 2 (MUX) | 2 | 2 | 4 (+2) | 8 (+6) | 8 configurable (+6) |
| Supply Voltage | +5 V | +5 V | +5 V | +5 V | +5 V | +5 V |
| Data Interface | MICROWIRE serial | MICROWIRE serial | MICROWIRE serial | MICROWIRE serial | MICROWIRE serial | MICROWIRE serial |
| Self-Calibration | On-chip | On-chip | On-chip | On-chip | On-chip | On-chip |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Lead Finish | Pb-free (NOPB) | Pb-free (NOPB) | SnPb (non-NOPB) | Pb-free (NOPB) | Pb-free (NOPB) | Pb-free (NOPB) |
Principaux différenciateurs
- Self-calibration on demand eliminates manual zero/span trims (vs Generic 12-bit SAR (e.g., MAX1247, AD7887))
- 2-channel integrated MUX vs single-channel competitors in 16-SOIC (vs MAX1247 (single-channel 12-bit SAR))
- True bipolar input ranges (+/-5V, +/-10V) from a single +5V supply (vs AD7887 (unipolar only from +5V))
- Pin-compatible 2/4/8-channel family scalability (vs ADC12130 (configurable-channel same-family software upgrade))
Notes de conception
Place a 10 uF tantalum plus a 0.1 uF ceramic bypass directly at pin 6 (VA+) and pin 7 (VD+); connect both ground returns to the same low-impedance ground plane via vias placed within 5 mm of the pins. The ADC12030's internal reference (pin 14, VREF) requires a 0.1 uF ceramic bypass to ground placed within 3 mm of the pin - this cap's placement directly impacts noise and linearity, so keep the trace between pin 14 and the cap as short and wide as practical.
Source impedance on each analog input should stay below 1 kohm - higher impedance degrades sample/hold acquisition and introduces gain error at higher sample rates. For high-impedance sources (e.g., 10 kohm thermistor divider), add a 1 kohm resistor in series followed by a 1000 pF to 0.01 uF capacitor right at the ADC input pin to form a low-pass anti-alias filter. The differential inputs (Vin1+, Vin1-, Vin2+, Vin2-) should be routed as a tightly-coupled pair with matched lengths to preserve common-mode rejection above 60 dB.
The CS (chip select) pin must be taken high between conversions to frame the serial data correctly - leaving CS low continuously will cause data-stream desynchronization and is the most common bring-up bug with this part. Always issue a self-calibration command after power-up and after any major temperature step (>20C delta) by strobing the CAL pin low - skipping calibration leaves residual offset/ gain errors uncorrected. Finally, do not exceed the 5.5V absolute maximum on VA+/VD+ even momentarily during power sequencing; add a TVS diode or inrush limiter if the supply is hot-pluggable.
The ADC12030CIWMX/NOPB dissipates only ~33 mW typical, so no heatsink is needed - but the 16-SOIC package still benefits from a copper pour on the GND pin side to keep junction temperature below the 150C absolute maximum in enclosed enclosures. Estimated junction rise at 70C ambient: 33 mW x 130 C/W (theta_JA typical for SOIC-16 wide on 2-layer board) = ~4.3 C rise, well within safe limits; a 4-layer board with continuous GND plane drops this below 1 C rise.
Informations de conformité
Pb-free per NOPB suffix; RoHS compliant. Not AEC-Q100 qualified (industrial-grade part). Conflict-minerals reporting per Texas Instruments standard CMRT.
