ADC3441IRTQ25 - Quad 14-Bit 25-MSPS Serial LVDS ADC | Texas Instruments
MPN: ADC3441IRTQ25 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $32.5 | $32.50 |
| 10 | $29.2 | $292.00 |
| 100 | $25.9 | $2,590.00 |
| 500 | $22.7 | $11,350.00 |
| 1,000 | $19.8 | $19,800.00 |
ADC3441IRTQ25 Overview
An analog-to-digital converter is a mixed-signal component that samples continuous analog voltages and converts them into discrete digital codes for downstream DSP, FPGA, or ASIC processing. The ADC3441 belongs to the high-speed pipeline ADC category, which sits inside the data converter family of mixed-signal ICs used in communications, test and measurement, and imaging systems. Pipeline ADCs use a multi-stage switched-capacitor architecture to achieve a balance of sample rate, resolution, and low latency, and are commonly deployed where multi-MHz analog bandwidth must be digitized.
Key features of the ADC3441 include a single 1.8 V supply, four differential or single-ended analog inputs, an input clock divider (/1, /2, /4), a SYSREF input for multi-device synchronization, and 105 dB channel-to-channel isolation. Pin-to-pin compatibility with the 12-bit ADC3423 enables resolution upgrades without PCB redesign. The 56-pin VQFN package offers a compact footprint for dense multi-channel designs.
The device uses an internal precision reference and a programmable gain stage on each channel. The flexible input clock buffer simplifies clock-tree synthesis in large channel-count systems, while the SLVDS interface reduces FPGA I/O pin consumption compared to parallel CMOS ADCs. Designers should follow TI's recommended power-on and calibration sequencing for optimal DC accuracy.
Typical applications include communications receiver IF digitizers, multi-channel data acquisition systems, oscilloscope front-ends, medical imaging, and radar baseband sampling. The combination of low power and high dynamic range makes the ADC3441 particularly suited to portable and thermally constrained systems.
When designing with this ADC, follow TI's recommended decoupling scheme (typically a 1 uF plus 0.1 uF per supply pin pair) and place the SLVDS trace lengths matched within the FPGA to preserve timing budget. The ADC3441's thermal pad must be soldered to a sufficient ground copper pour to keep junction temperature below the 125C maximum.
This page synthesizes TI distributor pricing, same-family alternatives, and application guidance not found in a single source, helping engineers select, source, and design with the ADC3441IRTQ25 more efficiently.
Drop-in alternatives for ADC3441IRTQ25 — 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 ADC3441IRTQ25 (same form factor and footprint) — differing in Input Type, Package, Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADC3441IRTQR
✅ Drop-In📋 Reference alternative (not in catalog)
ADC3442IRTQ25
✅ Drop-In📋 Reference alternative (not in catalog)
ADC3443IRTQ25
✅ Drop-In📋 Reference alternative (not in catalog)
ADC3444IRTQ25
✅ Drop-In📋 Reference alternative (not in catalog)
ADC3423IRTQ25
✅ Drop-In✓ In Stock
$21.85 / Unit
View Datasheet →ADC3441IRTQ25 Maximum Ratings & Electrical Characteristics
| Resolution | 14 bit |
| Number of Channels | 4 |
| Sample Rate | 25 MSPS |
| Architecture | Pipelined |
| Input Type | Differential, Single-Ended |
| Data Interface | Serial LVDS (SLVDS) |
| SNR | 72.4 dBFS at f_IN = 70 MHz |
| SFDR | 87 dBc at f_IN = 70 MHz |
| Supply Voltage | 1.8 V (single supply) |
| Power Consumption | 98 mW per channel at 125 MSPS |
| Channel Isolation | 105 dB |
| Input Clock Divider | /1, /2, /4 |
| SYSREF Input | Yes (multi-device synchronization) |
| Package | VQFN-56 (RTQ) 8 mm × 8 mm |
| Pin-to-Pin Compatibility | ADC3423 (12-bit version) |
| Operating Temperature | -40C to +85C (industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ADC3441IRTQ25 Pin Configuration
| Pin 1 | IN1A — Analog input 1A (differential) |
| Pin 2 | IN1B — Analog input 1B (differential) |
| Pin 3 | IN2A — Analog input 2A (differential) |
| Pin 4 | IN2B — Analog input 2B (differential) |
| Pin 5 | AVDD — Analog 1.8 V supply |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | IN3A — Analog input 3A (differential) |
| Pin 8 | IN3B — Analog input 3B (differential) |
| Pin 9 | IN4A — Analog input 4A (differential) |
| Pin 10 | IN4B — Analog input 4B (differential) |
| Pin 11 | VCM — Common-mode voltage output |
| Pin 12 | REFT — Reference top decoupling |
| Pin 13 | REFB — Reference bottom decoupling |
| Pin 14 | AVDD — Analog 1.8 V supply |
| Pin 15 | AVSS — Analog ground |
| Pin 16 | NC — Not connected (per datasheet) |
| Pin 17 | NC — Not connected (per datasheet) |
| Pin 18 | CLK+ — Differential clock input positive |
| Pin 19 | CLK- — Differential clock input negative |
| Pin 20 | AVDD — Analog 1.8 V supply |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | SYSREF — System reference for synchronization |
| Pin 23 | RESET — Hardware reset (active low) |
| Pin 24 | SEN — Serial interface enable |
| Pin 25 | SCLK — Serial interface clock |
| Pin 26 | SDATA — Serial interface data |
| Pin 27 | AVDD — Analog 1.8 V supply |
| Pin 28 | AVSS — Analog ground |
| Pin 29 | LCLK+ — LVDS clock output positive |
| Pin 30 | LCLK- — LVDS clock output negative |
| Pin 31 | LVDS_AVDD — LVDS 1.8 V supply |
| Pin 32 | LVDS_AVSS — LVDS ground |
| Pin 33 | D0+ — LVDS data output 0 positive |
| Pin 34 | D0- — LVDS data output 0 negative |
| Pin 35 | D1+ — LVDS data output 1 positive |
| Pin 36 | D1- — LVDS data output 1 negative |
| Pin 37 | D2+ — LVDS data output 2 positive |
| Pin 38 | D2- — LVDS data output 2 negative |
| Pin 39 | D3+ — LVDS data output 3 positive |
| Pin 40 | D3- — LVDS data output 3 negative |
| Pin 41 | D4+ — LVDS data output 4 positive |
| Pin 42 | D4- — LVDS data output 4 negative |
| Pin 43 | D5+ — LVDS data output 5 positive |
| Pin 44 | D5- — LVDS data output 5 negative |
| Pin 45 | D6+ — LVDS data output 6 positive |
| Pin 46 | D6- — LVDS data output 6 negative |
| Pin 47 | D7+ — LVDS data output 7 positive |
| Pin 48 | D7- — LVDS data output 7 negative |
| Pin 49 | LVDS_AVDD — LVDS 1.8 V supply |
| Pin 50 | LVDS_AVSS — LVDS ground |
| Pin 51 | AVDD — Analog 1.8 V supply |
| Pin 52 | AVSS — Analog ground |
| Pin 53 | AVDD — Analog 1.8 V supply |
| Pin 54 | AVSS — Analog ground |
| Pin 55 | AVDD — Analog 1.8 V supply |
| Pin 56 | AVSS — Analog ground |
Typical Applications
ADC3441IRTQ25 is suitable for 7 applications: Communications IF Digitizer, Multi-Channel Data Acquisition, Oscilloscope and Test Equipment Front-End, Medical Imaging Digitizer, Radar Baseband Sampling, Industrial Process Control and Vibration Monitoring, Portable Instrumentation and Battery-Powered Systems.
Communications IF Digitizer
The ADC3441IRTQ25 is well suited to communications receiver IF-band digitizers where four channels of high-linearity analog input must be sampled simultaneously with low power. Its 72.4 dBFS SNR and 87 dBc SFDR at f_IN = 70 MHz (per TI datasheet) ensure that large dynamic range signals can be captured without saturating the front-end. The 25 MSPS rate matches narrow-band IF signals after the mixer, while the SLVDS interface reduces FPGA pin consumption in multi-receiver systems. Channel-to-channel isolation of 105 dB prevents cross-talk between receiver paths, critical for MIMO and diversity architectures.
Recommended
Multi-Channel Data Acquisition
In multi-channel data acquisition systems, the ADC3441IRTQ25 offers four simultaneous sampling channels at 25 MSPS each, enabling synchronized capture of multiple analog sources without time skew. Its pipelined architecture provides low conversion latency suitable for closed-loop control, while the serial LVDS output keeps FPGA pin count manageable in high-channel-count systems. The 1.8 V single-supply operation simplifies power tree design, and the 98 mW/channel power dissipation at 125 MSPS enables dense PCB layouts without active cooling. The VQFN-56 8x8 mm footprint is well-suited to compact DAQ modules.
Recommended
Oscilloscope and Test Equipment Front-End
The ADC3441IRTQ25 serves as a four-channel front-end digitizer in mid-bandwidth oscilloscopes, spectrum analyzers, and automated test equipment where 14-bit resolution and 25 MSPS provide adequate signal fidelity for general-purpose measurements. Its 87 dBc SFDR ensures spurious-free capture of clean sinewaves, essential for THD and IMD testing. The integrated input clock divider and SYSREF input simplify synchronization with FPGA-based DSP blocks for FFT and demodulation processing, while the quad-channel architecture supports four simultaneous scope channels at low cost per channel.
Recommended
Medical Imaging Digitizer
In ultrasound and other medical imaging front-ends, the ADC3441IRTQ25's four differential inputs digitize multiple transducer channels simultaneously with 14-bit resolution. The 72.4 dBFS SNR supports the dynamic range required for clean image capture, while the 105 dB channel isolation prevents image artifacts from channel cross-talk. The low 98 mW/channel power dissipation is important for portable and bedside imaging equipment where thermal management is constrained. The SLVDS interface minimizes radiated EMI in sensitive medical environments.
Recommended
Radar Baseband Sampling
For phased-array radar and baseband signal processing, the ADC3441IRTQ25 provides four synchronized sample channels at 25 MSPS to capture I/Q data from multiple radar receiver channels. Its integrated SYSREF input enables deterministic multi-device synchronization across large antenna arrays, while the 1.8 V single-supply operation simplifies power design in ruggedized outdoor installations. The pipelined architecture offers the low latency needed for adaptive beamforming, and the VQFN-56 package is suitable for the dense PCB layouts of modern AESA radar modules.
Recommended
Industrial Process Control and Vibration Monitoring
The ADC3441IRTQ25's four simultaneous sample channels and 14-bit resolution make it ideal for industrial vibration monitoring, where multiple accelerometer signals must be sampled concurrently to detect phase relationships between mechanical resonances. Its -40C to +85C industrial temperature rating supports factory-floor deployment, while the pipelined architecture provides low latency for closed-loop active damping control. The serial LVDS interface enables long-distance digital transmission across factory backplanes with excellent noise immunity, and the small VQFN-56 footprint allows integration into compact sensor modules.
Recommended
Portable Instrumentation and Battery-Powered Systems
In portable instrumentation such as handheld spectrum analyzers, field data loggers, and battery-powered measurement devices, the ADC3441IRTQ25's low 98 mW/channel power consumption at 125 MSPS (and proportionally less at 25 MSPS) extends battery life significantly. Its 1.8 V single-supply operation can be derived directly from common Li-ion or USB rails, simplifying power tree design. The VQFN-56 8x8 mm package fits in handheld form factors, and the SLVDS interface reduces FPGA I/O count, enabling use of smaller, lower-cost FPGAs to reduce total system BOM and power.
Recommended
Recommended Products Summary
Engineering reference data for ADC3441IRTQ25 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADC3441IRTQR | ADC3442IRTQ25 | ADC3443IRTQ25 | ADC3444IRTQ25 | ADC3423IRTQ25 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-56 (RTQ) 8x8 mm | VQFN-56 (RTQ) 8x8 mm - same | VQFN-56 (RTQ) 8x8 mm - same | VQFN-56 (RTQ) 8x8 mm - same | VQFN-56 (RTQ) 8x8 mm - same | VQFN-56 (RTQ) 8x8 mm - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 12 bit |
| Sample Rate | 25 MSPS | 25 MSPS | 50 MSPS | 80 MSPS | 125 MSPS | 25 MSPS |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Interface | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS | Serial LVDS |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Channel Isolation | 105 dB | 105 dB | 105 dB | 105 dB | 105 dB | 105 dB |
| Power per Channel (at 125 MSPS) | 98 mW | 98 mW | 98 mW | 98 mW | 98 mW | 98 mW |
Key Differentiators
- Pin-to-pin compatible with 12-bit ADC3423 for resolution migration (vs ADC3423IRTQ25)
- Highest speed option within ADC344x family at 25 MSPS entry point (vs ADC3444IRTQ25)
- 105 dB channel-to-channel isolation for multi-channel systems (vs ADS62P48IRGC25)
Design Notes
Place a 1 uF X7R ceramic capacitor and a 0.1 uF NP0/C0G ceramic capacitor within 2 mm of each AVDD pin pair to provide high-frequency and bulk decoupling. The exposed thermal pad must be soldered to a continuous ground plane with at least 16 thermal vias (0.3 mm drill, 0.5 mm pitch) to keep junction temperature below the 125 C maximum. Route LVDS output traces as 100 ohm differential pairs with length matching within 0.5 mm between D0+/D0- and the FPGA receiver.
The SLVDS interface requires a 100 ohm differential termination resistor at the FPGA receiver end, not at the ADC end. Keep total trace length from ADC output to FPGA input under 150 mm to preserve signal integrity at 25 MSPS; for longer runs, place the termination at the midpoint. Use a ground reference plane directly beneath the LVDS traces to control impedance and reduce EMI.
The ADC3441 requires a clean 1.8 V analog supply with less than 10 mV peak-to-peak ripple. Use a dedicated LDO (e.g., TPS7A47 family) to derive AVDD from a higher-voltage rail, and place a ferrite bead between AVDD and LVDD_AVDD to isolate switching noise between the analog and digital domains. Power-on sequencing should bring up AVDD before the LVDS supply, with RESET held low until both rails are stable.
Avoid driving the differential analog inputs with single-ended signals without AC coupling or a common-mode shift circuit; the ADC expects a 0.9 V common-mode voltage on each input pair. Use TI's recommended input network (typically a 50 ohm resistor plus bias-tee) when driving from a balun. Do not leave unused input channels floating - tie them to VCM to prevent noise pickup that can couple into active channels.
Keep analog input traces short and matched within 0.1 mm between the true and complement signals of each differential pair. Route clock and SYSREF traces as 50 ohm single-ended controlled-impedance lines, length-matched to within 2 mm. Separate analog and LVDS digital sections with a ground-plane split or guard ring to prevent digital switching transients from coupling into the analog front-end.
Compliance Information
RoHS and REACH compliant per TI product page; lead-free reflow compatible. Industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified - this is a commercial/industrial grade ADC.
