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Texas Instruments ADC3241IRGZR
- Part No.:
- ADC3241IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ADC3241IRGZR.pdf
- Description:
- IC ADC 14BIT PIPELINED 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,141
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Product details
Overview
ADC3241IRGZR from Texas Instruments is a dual-channel, 14-bit, 125-MSPS analog-to-digital converter with serial LVDS interface, 1.8-V single supply operation, and 72.4 dBFS SNR at 70 MHz input. It delivers ultra-low power (116 mW/channel), 105 dB channel isolation, and supports multi-chip synchronization for high-density RF receiver systems in radar and cellular infrastructure.
For engineers reviewing the ADC3241IRGZR datasheet, ADC3241IRGZR pinout, ADC3241IRGZR application, or ADC3241IRGZR equivalent, this page provides verified specifications, validated VQFN-48 pin functions, real-world use cases in SDR and smart antenna arrays, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The ADC3241IRGZR integrates an internal PLL to generate bit clock from the sampling clock and uses a two-wire serial LVDS interface per channel-DA0P/DA0M and DA1P/DA1M for Channel A/B data, plus DCLKP/DCLKM and FCLKP/FCLKM for timing. Input clock division (÷1/÷2/÷4) enables flexible system clock architecture.
It features internal dither and chopper for improved linearity, SYSREFP/SYSREFM inputs for JESD204B-compatible system-level synchronization, and independent analog (AVDD) and digital (DVDD) 1.8-V supplies with separate ground domains to minimize noise coupling between conversion paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Enables ≥86 dB dynamic range for high-fidelity digitization of wideband RF signals. |
| Max Sampling Rate | 125 MSPS - Supports Nyquist bandwidth up to 62.5 MHz, suitable for IF sampling in LTE and radar receivers. |
| SNR @ 70 MHz | 72.4 dBFS - Confirmed at fS = 125 MSPS; ensures >11.7 ENOB for accurate signal reconstruction. |
| Channel Isolation | 105 dB - Maintains signal integrity in dual-path architectures like quadrature or diversity receivers. |
| Power Consumption | 116 mW per channel - Enables thermal-efficient high-channel-count systems without forced cooling. |
| Analog Input BW | 540 MHz (3 dB) - Accepts direct RF sampling up to ~230 MHz with minimal amplitude roll-off. |
| Interface | Serial LVDS - Reduces interface lines vs parallel bus; two-wire per channel lowers PCB routing complexity. |
Pinout & Package
VQFN-48 package (7 mm × 7 mm) with exposed thermal pad on underside; RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INAP / INAM | Differential analog input, Channel A | Accepts 2-VPP full-scale differential signal; 6.6-kΩ input resistance, 3.7-pF capacitance. |
| INBP / INBM | Differential analog input, Channel B | Independent path with 105-dB isolation from Channel A; same electrical specs as INAP/INAM. |
| CLKP / CLKM | Differential sampling clock input | Accepts LVDS/LVPECL/AC-coupled sine; supports divide-by-1/2/4 via register control. |
| DA0P / DA0M DA1P / DA1M |
LVDS serial data outputs | Two-wire serialized 14-bit output per channel; frame-aligned with FCLKP/FCLKM. |
| DCLKP / DCLKM FCLKP / FCLKM |
LVDS bit/frame clock outputs | Generated internally by PLL; eliminates need for external clock fanout ICs. |
| SYSREFP / SYSREFM | Differential system reference input | Enables deterministic latency alignment across multiple ADC324x devices in JESD204B-like systems. |
| AVDD / DVDD | Analog/digital 1.8-V supplies | Separate domains reduce digital switching noise coupling into analog front-end. |
| GND (1,3,5,32,34,36,PowerPAD) | Ground terminals | Multiple low-inductance GND connections + thermal pad ensure stable reference and heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Internal PLL clock multiplier | Derives bit clock from sampling clock-eliminates external clock generator and simplifies layout. |
| Flexible clock divider (÷1/÷2/÷4) | Allows use of lower-frequency, lower-jitter master clocks while maintaining full 125-MSPS sampling. |
| Multi-chip synchronization support | SYSREF inputs enable sub-cycle timing alignment across multiple ADCs for phased-array beamforming. |
| Internal dither and chopper | Reduces harmonic distortion and improves SFDR by suppressing static nonlinearity in ADC core. |
| Pin-to-pin compatibility with 12-bit ADC322x | Enables resolution upgrade without PCB redesign-same footprint, pin count, and power delivery. |
Applications
| Quadrature Radio Receiver | Smart Antenna Array |
|---|---|
|
Use Scenario: Digitizing I/Q baseband signals from zero-IF or low-IF mixers in software-defined radios. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling captures phase-coherent I and Q paths with 105 dB isolation. Use Value: Preserves complex signal integrity for accurate demodulation and channel estimation in LTE/WiMAX. |
Use Scenario: High-channel-count beamforming in radar or 5G mMIMO base stations. IC Role / Device Role / Timing Role: Multiple ADC3241IRGZR units synchronized via SYSREF enable deterministic latency across 32+ channels. Use Value: Enables real-time digital beam steering with sub-sample timing alignment and low inter-channel crosstalk. |
| Communications Test Equipment | Microwave Receiver Front-End |
|
Use Scenario: Wideband signal capture in vector signal analyzers requiring >60 MHz instantaneous bandwidth. IC Role / Device Role / Timing Role: 125-MSPS sampling with 540-MHz analog input BW supports direct IF sampling up to 170 MHz. Use Value: Captures full 100-MHz LTE carriers or multi-carrier signals without analog preselection filtering. |
Use Scenario: Digitizing downconverted L/S/C-band microwave signals in satellite or defense receivers. IC Role / Device Role / Timing Role: 72.4 dBFS SNR at 70 MHz and 87 dBc SFDR meet stringent spurious performance requirements. Use Value: Maintains EVM < 1.5% for 256-QAM waveforms under high-input dynamic range conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADC3242IRGZR | Rated for 50 MSPS max sampling rate; lower power (71 mA AVDD at 50 MSPS vs 71 mA at 125 MSPS for ADC3241). | Optimized for lower-bandwidth IF sampling (e.g., narrowband IoT gateways); not suitable for 125-MSPS SDR front-ends. | Select when system clock constraints or thermal budget require reduced sampling rate without changing layout. |
| ADC32J42IRGZT | JESD204B interface (not LVDS); 14-bit, 500-MSPS capability; higher power (390 mW total). | Targets high-speed backhaul and massive MIMO where FPGA JESD204B lane count exceeds LVDS pin count. | Choose only if FPGA has native JESD204B IP and system demands >125 MSPS with deterministic latency. |
Compared with ADC3241IRGZR, ADC3242IRGZR trades maximum sample rate for lower power and cost in fixed-rate IF applications, while ADC32J42IRGZT replaces LVDS with JESD204B to scale channel count and speed-neither is pin-compatible, but both serve adjacent segments of the high-performance ADC roadmap.
Availability
ADC3241IRGZR is available at Aetrix Electronics and suitable for radar signal processing, cellular base station development, and communications test equipment requiring stable component supply across long production cycles.
Supply support for ADC3241IRGZR 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 and embedded processing technologies, with decades of expertise in high-speed data converters and RF signal chain solutions.
The ADC324x family was designed for demanding high-frequency, high-dynamic-range applications including multi-carrier cellular infrastructure, radar, and instrumentation-where linearity, low power, and synchronization are critical.
FAQ
What is the maximum sampling rate supported by ADC3241IRGZR?
The ADC3241IRGZR supports a maximum sampling rate of 125 MSPS, as specified in the device's Recommended Operating Conditions and confirmed in AC Performance tables for ADC3241. This enables full-Nyquist bandwidth up to 62.5 MHz and direct sampling of IF signals up to 170 MHz with acceptable SNR degradation. The ADC3241IRGZR maintains 72.4 dBFS SNR at 70 MHz input under these conditions.
Does ADC3241IRGZR support JESD204B interface?
No, ADC3241IRGZR does not support JESD204B. It uses a proprietary serial LVDS interface with two-wire data lanes per channel (DA0P/DA0M, DA1P/DA1M), plus dedicated DCLKP/DCLKM and FCLKP/FCLKM outputs. JESD204B is implemented in the pin-compatible ADC32Jxx series (e.g., ADC32J42), not the ADC324x family.
What package type is used for ADC3241IRGZR?
ADC3241IRGZR is housed in a 48-pin VQFN package (RGZ suffix) with nominal dimensions of 7.00 mm × 7.00 mm and an exposed thermal pad on the underside. This package is RoHS-compliant and rated for moisture sensitivity level 3, requiring bake-before-rework per JEDEC J-STD-020.
How is multi-device synchronization achieved with ADC3241IRGZR?
ADC3241IRGZR achieves deterministic multi-device synchronization using the differential SYSREFP and SYSREFM inputs. When driven synchronously across multiple units, these pins align internal sampling phases and LVDS frame boundaries-enabling coherent sampling across arrays for beamforming or channel bonding. No external PLL or delay calibration is required.
Is ADC3241IRGZR pin-compatible with any lower-resolution variants?
Yes, ADC3241IRGZR is pin-to-pin compatible with the 12-bit ADC322x family (e.g., ADC3224), as explicitly stated in the "Features" section of the datasheet. This allows resolution upgrades in existing designs without PCB changes-same VQFN-48 footprint, identical power, ground, clock, and interface pin assignments.
ADC3241IRGZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 25M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-VQFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADC3241IRGZR FAQ
1.How can I place an order for ADC3241IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADC3241IRGZR 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 ADC3241IRGZR reliable?
The price and inventory of ADC3241IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADC3241IRGZR is usually 5 days.
3.What payment methods are accepted for ADC3241IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADC3241IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADC3241IRGZR?
ADC3241IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADC3241IRGZR 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 ADC3241IRGZR?
For technical support, including ADC3241IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADC3241IRGZR requirements.
6.How does Aetrix verify that ADC3241IRGZR is sourced from the original manufacturer or authorized distributors?
All ADC3241IRGZR 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 ADC3241IRGZR meets industry standards.
7.What is the process for return or replacement of ADC3241IRGZR?
All ADC3241IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with ADC3241IRGZR, 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 ADC3241IRGZR part is unused and in its original packaging.
Return procedure for ADC3241IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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