ADC12EU050CIPLQ/NOPB - Octal 12-Bit 50 MSPS Sigma-Delta ADC | TI
MPN: ADC12EU050CIPLQ/NOPB ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $48.5 | $48.50 |
| 10 | $43.65 | $436.50 |
| 100 | $38.8 | $3,880.00 |
| 500 | $34.92 | $17,460.00 |
| 1,000 | $30.1 | $30,100.00 |
ADC12EU050CIPLQ/NOPB Overview
A sigma-delta ADC is a converter architecture that oversamples the input signal at a much higher rate than Nyquist, then uses noise-shaping feedback to push quantization noise out of the signal band, followed by digital decimation filtering to produce a high-resolution, low-noise output. Unlike successive-approximation-register (SAR) or pipeline ADCs that resolve in a single clock period, sigma-delta converters trade conversion speed for resolution and inherent anti-alias filtering, making them well suited to high-accuracy, low-to-medium bandwidth applications where noise rejection matters more than raw throughput.
Key features include 12-bit native resolution, sampling rates of 40-50 MSPS per channel, 8 fully differential input channels, ultra-low power dissipation per channel, an LVDS-compatible high-speed digital interface, and internal reference plus reference buffer. The architecture eliminates the need for an external anti-alias filter on each channel, simplifying multi-channel PCB layout. Industrial temperature range of -40C to +85C allows use in non-automotive embedded systems, while the 10x10 mm 68-VQFN package keeps per-channel board area low for high channel-count designs.
Typical applications span medical imaging front ends, multi-channel sonar and radar receivers, communications base-station digitizers, industrial vibration and machine-condition monitoring, high-channel-count test and measurement instrumentation, and professional audio interfaces requiring simultaneous sampling of multiple analog sources. Each channel can be sampled simultaneously without phase skew between channels.
When designing with this part, pay attention to the LVDS data interface layout - keep the LVDS traces impedance-controlled at 100 ohms differential and length-matched to the FPGA or ASIC receiver. Decouple each analog supply pin with a 0.1uF ceramic capacitor placed within 2 mm of the pin to prevent the high-speed switching noise from coupling back into the analog input.
This page synthesizes distributor pricing, datasheet specifications, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for ADC12EU050CIPLQ/NOPB — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADC12EU050CIPLQ/NOPB (same form factor and footprint) — differing in Architecture, RoHS Status, Data Interface, Input Type, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADC12EU050CIPLQ
✅ Drop-In📋 Reference alternative (not in catalog)
ADC12DC080CISQE/NOPB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.75 / Unit
View Datasheet →ADC12C105CISQ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$9.05 / Unit
View Datasheet →ADC12EU050CIPLQ/NOPB Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Sampling Rate | 40-50 MSPS |
| Architecture | Sigma-Delta (continuous-time) |
| Number of Channels | 8 (octal) |
| Input Channel Type | Differential |
| Data Interface | LVDS, Serial |
| Analog Supply Voltage Range | 1.14 V to 1.26 V |
| Digital I/O Supply Voltage Range | 1.4 V to 3.6 V |
| Package | 68-VQFN (10x10 mm) |
| Operating Temperature Range | -40 C to +85 C |
| Input Type | 1 input 1 sigma-delta (per channel) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (NOPB suffix indicates Pb-free) |
| Lead-Free | Yes (per /NOPB suffix) |
ADC12EU050CIPLQ/NOPB Pin Configuration
| Pin 1 | IN0P — Differential analog input 0 positive (Channel 0) |
| Pin 2 | IN0N — Differential analog input 0 negative (Channel 0) |
| Pin 3 | AVDD — Analog supply 1.2V |
| Pin 4 | AGND — Analog ground |
| Pin 5 | IN1P — Differential analog input 1 positive (Channel 1) |
| Pin 6 | IN1N — Differential analog input 1 negative (Channel 1) |
| Pin 7 | AVDD — Analog supply 1.2V |
| Pin 8 | IN2P — Differential analog input 2 positive (Channel 2) |
| Pin 9 | IN2N — Differential analog input 2 negative (Channel 2) |
| Pin 10 | AGND — Analog ground |
| Pin 11 | IN3P — Differential analog input 3 positive (Channel 3) |
| Pin 12 | IN3N — Differential analog input 3 negative (Channel 3) |
| Pin 13 | AVDD — Analog supply 1.2V |
| Pin 14 | IN4P — Differential analog input 4 positive (Channel 4) |
| Pin 15 | IN4N — Differential analog input 4 negative (Channel 4) |
| Pin 16 | AGND — Analog ground |
| Pin 17 | IN5P — Differential analog input 5 positive (Channel 5) |
| Pin 18 | IN5N — Differential analog input 5 negative (Channel 5) |
| Pin 19 | AVDD — Analog supply 1.2V |
| Pin 20 | IN6P — Differential analog input 6 positive (Channel 6) |
| Pin 21 | IN6N — Differential analog input 6 negative (Channel 6) |
| Pin 22 | AGND — Analog ground |
| Pin 23 | IN7P — Differential analog input 7 positive (Channel 7) |
| Pin 24 | IN7N — Differential analog input 7 negative (Channel 7) |
| Pin 25 | AVDD — Analog supply 1.2V |
| Pin 26 | REF_P — Internal reference positive (decouple to AGND) |
| Pin 27 | REF_N — Internal reference negative (ground) |
| Pin 28 | REFP_OUT — Reference buffer output (decoupling) |
| Pin 29 | AGND — Analog ground |
| Pin 30 | BIAS — Bias current setting resistor |
| Pin 31 | CLK_P — Differential clock input positive |
| Pin 32 | CLK_N — Differential clock input negative |
| Pin 33 | DVDD — Digital supply 1.4V-3.6V |
| Pin 34 | DGND — Digital ground |
| Pin 35 | SYNC_P — LVDS frame sync positive |
| Pin 36 | SYNC_N — LVDS frame sync negative |
| Pin 37 | D0_P — LVDS data output 0 positive |
| Pin 38 | D0_N — LVDS data output 0 negative |
| Pin 39 | D1_P — LVDS data output 1 positive |
| Pin 40 | D1_N — LVDS data output 1 negative |
| Pin 41 | DVDD — Digital supply 1.4V-3.6V |
| Pin 42 | D2_P — LVDS data output 2 positive |
| Pin 43 | D2_N — LVDS data output 2 negative |
| Pin 44 | D3_P — LVDS data output 3 positive |
| Pin 45 | D3_N — LVDS data output 3 negative |
| Pin 46 | DGND — Digital ground |
| Pin 47 | D4_P — LVDS data output 4 positive |
| Pin 48 | D4_N — LVDS data output 4 negative |
| Pin 49 | D5_P — LVDS data output 5 positive |
| Pin 50 | D5_N — LVDS data output 5 negative |
| Pin 51 | DVDD — Digital supply 1.4V-3.6V |
| Pin 52 | D6_P — LVDS data output 6 positive |
| Pin 53 | D6_N — LVDS data output 6 negative |
| Pin 54 | D7_P — LVDS data output 7 positive |
| Pin 55 | D7_N — LVDS data output 7 negative |
| Pin 56 | DGND — Digital ground |
| Pin 57 | DRDY_P — LVDS data ready positive |
| Pin 58 | DRDY_N — LVDS data ready negative |
| Pin 59 | OVR_P — LVDS over-range positive |
| Pin 60 | OVR_N — LVDS over-range negative |
| Pin 61 | DVDD — Digital supply 1.4V-3.6V |
| Pin 62 | PDN — Power-down (active low) |
| Pin 63 | RESET — Reset (active low) |
| Pin 64 | TEST — Test mode (tie to DVDD for normal operation) |
| Pin 65 | DGND — Digital ground |
| Pin 66 | CS — SPI chip select (configuration) |
| Pin 67 | SCLK — SPI serial clock (configuration) |
| Pin 68 | SDIO — SPI data I/O (configuration) |
Typical Applications
ADC12EU050CIPLQ/NOPB is suitable for 6 applications: Medical Ultrasound Imaging Front End, Multi-Channel Sonar and Radar Receiver, Communications Base-Station Digitizer, Industrial Vibration and Machine-Condition Monitoring, High-Channel-Count Test and Measurement Instrumentation, Professional Multi-Channel Audio Interface.
Medical Ultrasound Imaging Front End
The ADC12EU050CIPLQ/NOPB is well suited to medical ultrasound imaging because it integrates 8 fully differential input channels that sample simultaneously at 50 MSPS per channel. In a phased-array ultrasound probe, each of the 8 channels digitizes one receive channel without inter-channel phase skew, which directly determines beamforming accuracy and image resolution. The 12-bit resolution and sigma-delta noise shaping provide sufficient dynamic range for tissue harmonics imaging, while the LVDS interface delivers the 50 MSPS-per-channel aggregate data rate to the FPGA beamformer over a single low-EMI physical link. Power dissipation per channel is minimized by the 1.2V analog supply, important for portable cart-based ultrasound systems where thermal management constraints are tight.
Recommended
Multi-Channel Sonar and Radar Receiver
Sonar and radar receiver arrays require dozens of simultaneously sampled channels for direction-finding and beam steering. The ADC12EU050CIPLQ/NOPB provides 8 channels of 50 MSPS simultaneous sampling per chip, allowing a single IC to digitize one 8-element hydrophone or antenna sub-array with low channel-to-channel timing skew. The 12-bit resolution is sufficient for detection SNR after matched filtering in active sonar, while the sigma-delta architecture provides inherent anti-aliasing that simplifies the analog front end. The 1.2V analog supply minimizes power per channel, critical for size, weight, and power (SWaP) constrained towed-array sonar bodies. LVDS output minimizes EMI pickup into adjacent RF receiver channels.
Recommended
Communications Base-Station Digitizer
Multi-antenna MIMO base-station receivers digitize several parallel RF chains for spatial multiplexing and diversity combining. The ADC12EU050CIPLQ/NOPB's 8 differential channels at 50 MSPS map directly to 8 antenna paths in a small-cell or distributed-radio base station. The sigma-delta noise shaping pushes quantization noise out of the cellular signal band, delivering high in-band SNR for LTE and 5G NR demodulation. The LVDS interface integrates cleanly with the digital front-end ASIC, while the 1.4V-3.6V digital I/O supply can be tied directly to the host ASIC's bank voltage without level translation, reducing BOM cost and board area.
Recommended
Industrial Vibration and Machine-Condition Monitoring
Predictive maintenance systems digitize vibration signals from multiple accelerometer channels mounted on motors, pumps, and bearings. The ADC12EU050CIPLQ/NOPB's 8 simultaneous-sampling 50 MSPS channels capture high-frequency bearing-fault signatures (typically up to 25 kHz) without aliasing, while the sigma-delta architecture's inherent noise shaping extends dynamic range for detecting low-amplitude early-stage faults. The 12-bit resolution is adequate for vibration envelope analysis after digital demodulation. Industrial -40C to +85C operation supports deployment in harsh factory environments near motors and gearboxes.
Recommended
High-Channel-Count Test and Measurement Instrumentation
Automated test equipment, multi-channel oscilloscopes, and data-acquisition systems require dense simultaneous sampling of many analog inputs. The ADC12EU050CIPLQ/NOPB packs 8 channels into a 10x10 mm VQFN footprint, allowing board designers to build 16-, 24-, or 32-channel acquisition boards using 2-4 ICs instead of an entire rack of discrete ADCs. The 50 MSPS per-channel rate supports transient capture of repetitive signals with sub-microsecond resolution, while the LVDS output enables high-fanout routing to the FPGA capture memory. The 12-bit native resolution covers most general-purpose instrumentation accuracy requirements up to 0.024% FS.
Recommended
Professional Multi-Channel Audio Interface
Professional USB and Thunderbolt audio interfaces for studio recording require simultaneous sampling of 8 or more microphone preamp outputs at high sample rates. The ADC12EU050CIPLQ/NOPB's 8 differential channels at 50 MSPS support 8-microphone 192 kHz oversampled audio capture with 12-bit resolution, sufficient for budget broadcast and podcast production. The sigma-delta noise shaping provides flat low-noise floor in the audible band. The LVDS interface delivers sample data to the audio DSP without ground-bounce artifacts that plague single-ended CMOS ADC interfaces in high-gain preamp layouts.
Recommended
Recommended Products Summary
Engineering reference data for ADC12EU050CIPLQ/NOPB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADC12EU050CIPLQ | ADC12DC080CISQE/NOPB | ADC12C105CISQ |
|---|---|---|---|---|
| Brand | Texas Instruments (formerly National Semiconductor) | Texas Instruments / National Semiconductor | Texas Instruments | Texas Instruments |
| Package | 68-VQFN (PLQ) 10x10 mm | 68-VQFN (PLQ) 10x10 mm - same | 68-VQFN - same | 68-VQFN - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit |
| Channels | 8 | 8 | 2 | 1 |
| Sample Rate (max) | 50 MSPS | 50 MSPS | 80 MSPS | 105 MSPS |
| Lead-Free / RoHS | Yes (NOPB suffix) | No (leaded finish) | Yes (NOPB suffix) | Yes |
Key Differentiators
- Highest channel density in TI 68-VQFN ADC portfolio at 50 MSPS (vs ADC12C105CISQ)
- Sigma-delta noise shaping for high in-band SNR (vs ADC12DC080CISQE/NOPB)
- Lead-free / RoHS compliant packaging (vs ADC12EU050CIPLQ)
Design Notes
Route the LVDS data output pairs (D0_P/N through D7_P/N, plus DRDY and OVR) as 100-ohm differential traces with length matching within 0.5 mm to maintain data-eye margin at 50 MSPS per channel. Keep the LVDS region isolated from the analog input traces by a ground guard ring; this prevents the high-speed LVDS edge rates (~200 ps) from coupling into the sensitive 1.2V analog front end through the silicon substrate or package lead frame. Place the LVDS 100-ohm termination resistors within 5 mm of the FPGA receiver pins, not at the ADC end, to absorb reflections at the load.
Decouple each AVDD pin with a 0.1 uF X7R ceramic capacitor placed within 2 mm of the pin, plus a 10 uF bulk tantalum or polymer capacitor at each AVDD rail entry point. The 8-channel sigma-delta modulator draws transient currents on the analog supply at the LVDS clock rate; insufficient decoupling will appear as spurs in the digitized spectrum. Use a separate 1.2V LDO regulator for AVDD, isolated from the digital DVDD supply by a ferrite bead, to prevent digital switching noise from corrupting the analog front-end reference. Power sequencing: bring up AVDD first, then DVDD, to prevent latch-up through ESD clamp diodes.
Drive the differential clock input (CLK_P/CLK_N) with a low-jitter LVDS or LVPECL source; jitter on the sample clock directly degrades SNR by 20*log10(1/(2*pi*fIN*tjitter)). For an ultrasound or sonar application with 5 MHz IF, a 5 ps RMS clock jitter degrades SNR by approximately 6 dB compared to a clean 1 ps source. Place the clock generator on the same side of the ADC as the LVDS outputs and route the clock trace before the data traces so the data lines see a stable reference during board bring-up. Use a clock buffer with low additive jitter (e.g., TI CDCLVC1310 or LMX2541) if distributing the clock to multiple ADC chips.
The 68-VQFN package has a low theta-JA when the exposed thermal pad is soldered to a 4-layer PCB with adequate copper pour (at least 1 square inch top-layer copper on the pad, plus thermal vias to inner ground planes). Estimated: at full 8-channel operation at 50 MSPS with 1.2V AVDD and 1.8V DVDD, the ADC dissipates approximately 1.5-2.0 W total. Without the thermal pad properly soldered, junction temperature can rise 40-50 C above ambient, potentially exceeding the 85 C industrial rating in enclosed instrument chassis. Always X-ray the solder joint on the thermal pad during PCB assembly QA.
Do not leave the TEST pin floating; tie it to DVDD through a 10 kohm resistor for normal operation, or the ADC may enter an undefined test mode that latches all 8 channels into a fixed output pattern. Do not apply analog input signals before AVDD is stable - the input ESD diodes will forward-conduct and inject charge into the sampling capacitors, potentially damaging the front end. Always reset the ADC (drive RESET low for at least 100 ns) after power-up before initiating the SPI configuration sequence, otherwise the default register state may not match the datasheet power-on defaults.
Compliance Information
RoHS compliant per /NOPB suffix. Not AEC-Q100 qualified - this is an industrial-temperature commercial part, not designed for automotive under-hood applications.
