ADC3441IRTQ25 - Quad 14-Bit 25-MSPS Serial LVDS ADC | Texas Instruments
料号： ADC3441IRTQ25 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 概述
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.
直接替换替代料： ADC3441IRTQ25 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADC3441IRTQ25 （相同外形与封装尺寸） ——差异在于 Input Type, Package, Resolution.
快速对比工具——选择替代料号进行并排对比：
ADC3441IRTQR
✅ 直接替换📋 参考替代料（不在目录中）
ADC3442IRTQ25
✅ 直接替换📋 参考替代料（不在目录中）
ADC3443IRTQ25
✅ 直接替换📋 参考替代料（不在目录中）
ADC3444IRTQ25
✅ 直接替换📋 参考替代料（不在目录中）
ADC3423IRTQ25
✅ 直接替换✓ 有现货
$21.85 / 个
查看数据手册 →ADC3441IRTQ25 最大额定值与电气特性
| 分辨率 | 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 |
| 电源电压 | 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) |
| 封装 | VQFN-56 (RTQ) 8 mm × 8 mm |
| Pin-to-Pin Compatibility | ADC3423 (12-bit version) |
| 工作温度 | -40C to +85C (industrial) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
ADC3441IRTQ25 引脚配置
| 引脚 1 | IN1A — Analog input 1A (differential) |
| 引脚 2 | IN1B — Analog input 1B (differential) |
| 引脚 3 | IN2A — Analog input 2A (differential) |
| 引脚 4 | IN2B — Analog input 2B (differential) |
| 引脚 5 | AVDD — Analog 1.8 V supply |
| 引脚 6 | AVSS — Analog ground |
| 引脚 7 | IN3A — Analog input 3A (differential) |
| 引脚 8 | IN3B — Analog input 3B (differential) |
| 引脚 9 | IN4A — Analog input 4A (differential) |
| 引脚 10 | IN4B — Analog input 4B (differential) |
| 引脚 11 | VCM — Common-mode voltage output |
| 引脚 12 | REFT — Reference top decoupling |
| 引脚 13 | REFB — Reference bottom decoupling |
| 引脚 14 | AVDD — Analog 1.8 V supply |
| 引脚 15 | AVSS — Analog ground |
| 引脚 16 | NC — Not connected (per datasheet) |
| 引脚 17 | NC — Not connected (per datasheet) |
| 引脚 18 | CLK+ — Differential clock input positive |
| 引脚 19 | CLK- — Differential clock input negative |
| 引脚 20 | AVDD — Analog 1.8 V supply |
| 引脚 21 | AVSS — Analog ground |
| 引脚 22 | SYSREF — System reference for synchronization |
| 引脚 23 | RESET — Hardware reset (active low) |
| 引脚 24 | SEN — Serial interface enable |
| 引脚 25 | SCLK — Serial interface clock |
| 引脚 26 | SDATA — Serial interface data |
| 引脚 27 | AVDD — Analog 1.8 V supply |
| 引脚 28 | AVSS — Analog ground |
| 引脚 29 | LCLK+ — LVDS clock output positive |
| 引脚 30 | LCLK- — LVDS clock output negative |
| 引脚 31 | LVDS_AVDD — LVDS 1.8 V supply |
| 引脚 32 | LVDS_AVSS — LVDS ground |
| 引脚 33 | D0+ — LVDS data output 0 positive |
| 引脚 34 | D0- — LVDS data output 0 negative |
| 引脚 35 | D1+ — LVDS data output 1 positive |
| 引脚 36 | D1- — LVDS data output 1 negative |
| 引脚 37 | D2+ — LVDS data output 2 positive |
| 引脚 38 | D2- — LVDS data output 2 negative |
| 引脚 39 | D3+ — LVDS data output 3 positive |
| 引脚 40 | D3- — LVDS data output 3 negative |
| 引脚 41 | D4+ — LVDS data output 4 positive |
| 引脚 42 | D4- — LVDS data output 4 negative |
| 引脚 43 | D5+ — LVDS data output 5 positive |
| 引脚 44 | D5- — LVDS data output 5 negative |
| 引脚 45 | D6+ — LVDS data output 6 positive |
| 引脚 46 | D6- — LVDS data output 6 negative |
| 引脚 47 | D7+ — LVDS data output 7 positive |
| 引脚 48 | D7- — LVDS data output 7 negative |
| 引脚 49 | LVDS_AVDD — LVDS 1.8 V supply |
| 引脚 50 | LVDS_AVSS — LVDS ground |
| 引脚 51 | AVDD — Analog 1.8 V supply |
| 引脚 52 | AVSS — Analog ground |
| 引脚 53 | AVDD — Analog 1.8 V supply |
| 引脚 54 | AVSS — Analog ground |
| 引脚 55 | AVDD — Analog 1.8 V supply |
| 引脚 56 | AVSS — Analog ground |
典型应用
ADC3441IRTQ25 适用于 7 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： ADC3441IRTQ25 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Pin-to-pin compatible with 12-bit ADC3423 for resolution migration （对比 ADC3423IRTQ25)
- Highest speed option within ADC344x family at 25 MSPS entry point （对比 ADC3444IRTQ25)
- 105 dB channel-to-channel isolation for multi-channel systems （对比 ADS62P48IRGC25)
设计说明
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.
合规信息
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.
