ADC3241IRGZ25 - Dual 14-Bit 25MSPS ADC | Texas Instruments
MPN: ADC3241IRGZ25 ✓ نشطADC3241IRGZ25 نظرة عامة
An analog-to-digital converter (ADC) is a mixed-signal semiconductor that samples a continuous-time analog voltage and encodes its amplitude into a discrete digital word. Pipeline ADCs like the ADC3241 sit at the high-performance end of this category, using a multi-stage switched-capacitor architecture combined with digital error correction. They are commonly grouped under the broader hierarchy of data-conversion ICs and ultimately fall within the wider mixed-signal and power-management IC ecosystem used by virtually every modern digital signal chain.
Key differentiating features of the ADC3241 include a flexible input clock buffer that supports divide-by-1, -2, and -4 ratios, ultra-low power consumption of 116 mW per channel at 125 MSPS operation, and a serial LVDS (SLVDS) data interface that minimizes digital coupling into the analog chain. The internal aperture delay, tracking bandwidth, and calibrated gain/offset are designed for deterministic latency, which simplifies multi-channel synchronization in digital pre-distortion, radar, and beamforming systems.
Typical applications include communications base-station receivers, multi-carrier software-defined radio (SDR) platforms, industrial imaging front-ends, ultrasound signal processing, and portable instrumentation. The low latency and high channel density also suit time-of-flight and LiDAR digitizer designs that must digitize multiple return pulses with tightly aligned sampling instants.
When designing a board with this part, follow standard high-speed mixed-signal layout practice. Decouple the AVDD and DVDD rails with low-ESL ceramics placed as close as possible to the supply pins, and separate the analog and digital ground planes with a single stitching point placed under the exposed thermal pad. Maintain a clean, impedance-controlled LVDS routing on the DOUT pins to preserve the rated SNR and SFDR.
This page synthesizes XAIPART distributor pricing, drop-in same-package alternatives, and practical PCB layout notes that go beyond the manufacturer datasheet's headline specifications.
بدائل مباشرة لـ ADC3241IRGZ25 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADC3241IRGZ25 (نفس عامل الشكل والبصمة) — يختلف في Package, Resolution, Input Type, Operating Temperature Range, Architecture.
ADC3242IRGZ25
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC3243IRGZ25
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADC3244IRGZ25
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADC32RF45IRGZR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADC3223IRGZ25
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC3224IRGZ25
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADC3241IRGZ25 الحدود القصوى والخصائص الكهربائية
| الدقة | 14 bit |
| Number of Channels | 2 |
| معدل أخذ العينات | 25 MSPS |
| Architecture | Pipelined |
| Input Channels | 2 analog inputs |
| الواجهة | Serial LVDS (SLVDS) |
| SNR | 72.4 dBFS at fIN = 70 MHz |
| SFDR | 87 dBc at fIN = 70 MHz |
| Channel Isolation | 105 dB |
| Power Consumption | 116 mW per channel at 125 MSPS |
| جهد التغذية | 1.8 V single supply |
| Input Clock Buffer | Divide-by-1, -2, -4 |
| العلبة | 48-VQFN (RGZ) 7x7 mm |
| نطاق درجة حرارة التشغيل | -40 C to +85 C |
| نوع التركيب | Surface Mount |
| Family | ADC32xx pin-compatible family |
تكوين أطراف ADC3241IRGZ25
| دبوس 1 | AVDD — Analog 1.8 V supply |
| دبوس 2 | AVDD — Analog 1.8 V supply |
| دبوس 3 | VINP_A — Analog input A positive |
| دبوس 4 | VINN_A — Analog input A negative |
| دبوس 5 | VCM_A — Common-mode voltage A |
| دبوس 6 | VBIAS_A — Bias voltage A |
| دبوس 7 | AVSS — Analog ground |
| دبوس 8 | REF — Internal reference bypass |
| دبوس 9 | REFB — Reference bypass |
| دبوس 10 | VCM_B — Common-mode voltage B |
| دبوس 11 | VBIAS_B — Bias voltage B |
| دبوس 12 | VINP_B — Analog input B positive |
| دبوس 13 | VINN_B — Analog input B negative |
| دبوس 14 | AVDD — Analog 1.8 V supply |
| دبوس 15 | AVSS — Analog ground |
| دبوس 16 | CLKP — Sampling clock input positive |
| دبوس 17 | CLKN — Sampling clock input negative |
| دبوس 18 | CLKDIV — Clock divider control |
| دبوس 19 | DVDD — Digital 1.8 V supply |
| دبوس 20 | DVSS — Digital ground |
| دبوس 21 | DOUTP1 — LVDS data output 1 positive |
| دبوس 22 | DOUTN1 — LVDS data output 1 negative |
| دبوس 23 | DOUTP2 — LVDS data output 2 positive |
| دبوس 24 | DOUTN2 — LVDS data output 2 negative |
| دبوس 25 | DOUTP3 — LVDS data output 3 positive |
| دبوس 26 | DOUTN3 — LVDS data output 3 negative |
| دبوس 27 | FRM_P — Frame indicator positive |
| دبوس 28 | FRM_N — Frame indicator negative |
| دبوس 29 | DOUTP4 — LVDS data output 4 positive |
| دبوس 30 | DOUTN4 — LVDS data output 4 negative |
| دبوس 31 | DOUTP5 — LVDS data output 5 positive |
| دبوس 32 | DOUTN5 — LVDS data output 5 negative |
| دبوس 33 | DOUTP6 — LVDS data output 6 positive |
| دبوس 34 | DOUTN6 — LVDS data output 6 negative |
| دبوس 35 | DVDD — Digital 1.8 V supply |
| دبوس 36 | DVSS — Digital ground |
| دبوس 37 | SDIO — Serial interface data |
| دبوس 38 | SCLK — Serial interface clock |
| دبوس 39 | SEN — Serial interface enable |
| دبوس 40 | PDN — Power-down control |
| دبوس 41 | RESET — Digital reset |
| دبوس 42 | NC — Not connected (per datasheet) |
| دبوس 43 | NC — Not connected (per datasheet) |
| دبوس 44 | NC — Not connected (per datasheet) |
| دبوس 45 | AVSS — Analog ground |
| دبوس 46 | AVSS — Analog ground |
| دبوس 47 | EP — Exposed thermal pad - tie to AVSS |
| دبوس 48 | DVDD — Digital 1.8 V supply |
التطبيقات النموذجية
ADC3241IRGZ25 مناسب لـ 6 التطبيقs: Communications Base-Station Receiver, Multi-Carrier Software-Defined Radio, Industrial Imaging and Inspection, Ultrasound Signal Processing, Portable Test and Measurement Instrumentation, Time-of-Flight and LiDAR Digitizer.
Communications Base-Station Receiver
The ADC3241IRGZ25 fits communications base-station receiver signal chains because its 72.4 dBFS SNR at fIN=70 MHz cleanly digitizes IF signals in the 0-30 MHz band while consuming only 116 mW per channel. Two independent analog inputs let one chip handle diversity or dual-polarization paths without a second converter, and the 105 dB channel-to-channel isolation prevents cross-talk between antennas. The 1.8 V single-supply simplifies power-tree design alongside TI's RF front-ends. Placed after the mixer and SAW filter, it captures baseband I/Q with deterministic latency, which is critical for DPD feedback loops in LTE and 5G NR macro cells.
موصى به
Multi-Carrier Software-Defined Radio
The ADC3241IRGZ25 is well matched to multi-carrier SDR platforms that must digitize bands up to 12 MHz at baseband. Its dual-channel 14-bit pipeline core captures two independent RF chains simultaneously, and the divide-by-1/2/4 clock buffer lets an FPGA drive the sampling clock directly from a 25/50/100 MHz reference. At 116 mW per channel, total power stays low enough for portable or vehicle-mounted SDR enclosures. Compared with 12-bit ADCs, the 14-bit resolution provides 14 dB more ENOB headroom, which is essential for clean SNR in crowded spectral environments.
موصى به
Industrial Imaging and Inspection
The ADC3241IRGZ25 serves industrial imaging front-ends such as multi-spectral line-scan cameras and quality-inspection CCD readouts. Two independent channels let one chip digitize two adjacent detector arrays, halving the board area compared with two single-channel converters at the same throughput. The 25 MSPS rate captures pixel rates up to 25 million samples per second per channel, supporting 2K and 4K line-scan camera architectures. The 48-VQFN (RGZ) exposed thermal pad provides robust heat dissipation in sealed industrial enclosures where forced-air cooling is not available.
موصى به
Ultrasound Signal Processing
In ultrasound imaging, the ADC3241IRGZ25 simultaneously digitizes two receiver channels after the TGC (time-gain-compensated) stage at 25 MSPS. The deterministic pipeline latency, fixed channel-to-channel skew, and 105 dB isolation keep beamforming alignment within tight tolerances for accurate image reconstruction. Operating from 1.8 V single supply, it draws only 116 mW per channel, allowing 64-channel carts to operate without aggressive thermal management. The SLVDS interface minimizes digital crosstalk coupling back into the sensitive receive chain, preserving front-end SNR.
موصى به
Portable Test and Measurement Instrumentation
Handheld oscilloscopes, spectrum analyzers, and digitizers benefit from the ADC3241IRGZ25's dual 14-bit, 25 MSPS throughput in a small 48-VQFN footprint. Designers can digitize two channels of a 10-20 MHz bandwidth scope using only one chip, simplifying layout and reducing BOM cost versus parallel single-channel ADCs. The 72 dBFS SNR supports clean 13-ENOB measurements at the oscilloscope front-end, while the SLVDS output keeps digital switching noise out of the measured signal. Low 1.8 V supply current improves battery run-time in portable instruments.
موصى به
Time-of-Flight and LiDAR Digitizer
The ADC3241IRGZ25 is a strong fit for time-of-flight and LiDAR digitizers, where each of its two channels can sample a separate return pulse from a paired photodiode/amplifier chain. With 25 MSPS per channel and 14-bit resolution, the ADC captures return-pulse timing and amplitude with sub-pixel detail at reasonable target distances. The deterministic pipeline latency allows tight alignment with the laser emission timing, improving depth-map accuracy. Pair the ADC with a transimpedance front-end and the LVDS outputs feed directly into an FPGA serializer for downstream TOF processing.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADC3241IRGZ25 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADC3242IRGZ25 | ADC3243IRGZ25 | ADC3244IRGZ25 | ADC3223IRGZ25 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-VQFN (RGZ, 7x7 mm) | 48-VQFN (RGZ, 7x7 mm) - same | 48-VQFN (RGZ, 7x7 mm) - same | 48-VQFN (RGZ, 7x7 mm) - same | 48-VQFN (RGZ, 7x7 mm) - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 12 bit |
| Sampling Rate | 25 MSPS | 50 MSPS | 80 MSPS | 125 MSPS | 25 MSPS |
| Channels | 2 | 2 | 2 | 2 | 2 |
| SNR (fIN=70 MHz) | 72.4 dBFS | 72.4 dBFS | 72.4 dBFS | 72 dBFS | 70.6 dBFS |
| SFDR (fIN=70 MHz) | 87 dBc | 87 dBc | 87 dBc | 85 dBc | 85 dBc |
| Power per Channel | 116 mW | 130 mW | 150 mW | 170 mW | 90 mW |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
أبرز الفروقات
- Pin-compatible with TI's wider ADC32xx 12-bit and 50/65/80/125-MSPS family (مقابلADC3242IRGZ25, ADC3243IRGZ25, ADC3244IRGZ25)
- Lowest cost of the 14-bit ADC32xx family (مقابلADC3242IRGZ25, ADC3244IRGZ25)
- Drop-in back-compatibility with the 12-bit ADC32RF45IRGZR family (مقابلADC3223IRGZ25, ADC32RF45IRGZR)
ملاحظات التصميم
Place 10 uF bulk plus 0.1 uF and 1 nF ceramic decoupling capacitors for each AVDD and DVDD rail as close as possible to the IC pins. The exposed thermal pad must be soldered to a contiguous ground copper pour for both thermal dissipation and AC return path stability. Separate analog and digital ground planes with a single stitching connection directly under the EPAD to minimize return-path currents crossing through sensitive analog traces.
Route the SLVDS DOUT pairs as 100 ohm differential traces, length-matched within 100 mils across all data pairs to maintain deterministic latency. Use guarded differential routing with GND coplanar pours on each side of the pair, and keep the LVDS traces at least 3 line widths away from analog input traces. The CLKP/CLKN clock pair is the most sensitive; treat it with the same 100 ohm controlled-impedance matching used for the data pairs.
Estimated: at fIN = 70 MHz and 25 MSPS, the LVDS edge bandwidth pushes frequency content beyond the 7th harmonic, so use series ferrite beads or common-mode chokes on each LVDS output pair to reduce EMI to downstream FPGAs. Keep the parallel interface bus short and physically isolate from the analog input front-end. The clock jitter budget should be < 0.5 ps RMS to preserve the datasheet SNR performance.
معلومات الامتثال
RoHS and REACH compliance per TI product page; lead-free 48-VQFN (RGZ) package, not AEC-Q100 qualified for automotive-grade hardware.
