ADS6425IRGCR - 12-Bit 125MSPS Quad-Channel ADC | Texas Instruments
Référence : ADS6425IRGCR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $36.5 | $36,50 |
| 10 | $32.85 | $328,50 |
| 100 | $29.2 | $2 920,00 |
| 500 | $25.95 | $12 975,00 |
| 1 000 | $23.1 | $23 100,00 |
ADS6425IRGCR Présentation
An analog-to-digital converter (ADC) is a data acquisition integrated circuit that converts continuous analog signals into discrete digital codes for downstream processing by DSPs, FPGAs, or microcontrollers. As a pipelined ADC, the ADS6425IRGCR uses a multi-stage architecture that converts input voltages through successive gain stages, with on-chip digital error correction, enabling high sampling rates while maintaining 12-bit linearity. Within the broader data converter hierarchy, this part belongs to the power-efficient, high-speed, multi-channel ADC category commonly used in communications, medical imaging, and industrial test systems.
Key performance features include 12-bit resolution, four differential input channels, 125 MSPS sampling per channel, LVDS serialized outputs with selectable doublets/quadruplets, an internal sample-and-hold, and an integrated clock stabilizer. The pipelined architecture provides low latency on the order of a few clock cycles and supports fine gain and offset adjustment per channel through dedicated registers.
The serialized LVDS interface allows multiple ADCs to share a common FPGA data bus, simplifying board layout and reducing FPGA pin count. The internal reference and high-impedance analog inputs simplify external signal conditioning, while the exposed thermal pad of the VQFN package provides a low theta-JA thermal path for reliable operation across the -40C to +85C industrial temperature range.
Typical applications for the ADS6425IRGCR include wireless communications base-station receivers, medical ultrasound beamformers, multi-channel data acquisition systems, radar and lidar front ends, and test and measurement instrumentation where simultaneous sampling of multiple channels is required.
When designing with this device, ensure clean analog input routing, adequate input bandwidth, and proper bypass of the 3.3 V AVDD and 1.8 V DVDD rails. The LVDS output pairs require 100 ohm differential termination at the receiver side for reliable high-speed operation.
This page synthesizes distributor pricing, drop-in alternatives within the same VQFN-64 (RGC) footprint, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour ADS6425IRGCR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ADS6425IRGCR (même facteur de forme et même empreinte) — différant par Number of Channels, Resolution, Package, Input Type, Operating Temperature Range.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADS6425IRGCT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS6424IRGCR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS6424IRGCT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS6423IRGCR
✅ Remplacement direct✓ En stock
$21.85 / unité
Voir la fiche technique →ADS6422IRGCR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS6422IRGC25
✅ Remplacement direct✓ En stock
$14.95 / unité
Voir la fiche technique →ADS6425IRGCR Valeurs maximales et caractéristiques électriques
| Résolution | 12 bits |
| Number of Channels | 4 differential inputs |
| Fréquence d'échantillonnage | 125 MSPS per channel |
| Architecture | Pipelined |
| Analog Supply Voltage | 3.3 V (AVDD) |
| Digital Supply Voltage | 1.8 V (DVDD) |
| Data Output Interface | Serialized LVDS |
| Boîtier | 64-pin VQFN (RGC) 9x9 mm |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40°C to +85°C (industrial) |
| Input Type | Differential |
| Sampling Mode | Simultaneous across 4 channels |
| Niveau MSL | 3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS Status | Lead-Free, RoHS Compliant |
| Sans halogène | Yes |
Configuration des broches de ADS6425IRGCR
| Broche 1 | AINP1 — Analog input 1 positive |
| Broche 2 | AINM1 — Analog input 1 negative |
| Broche 3 | VCM — Common-mode voltage output |
| Broche 4 | AINP2 — Analog input 2 positive |
| Broche 5 | AINM2 — Analog input 2 negative |
| Broche 6 | AVDD — Analog 3.3 V supply |
| Broche 7 | GND — Analog ground |
| Broche 8 | AINP3 — Analog input 3 positive |
| Broche 9 | AINM3 — Analog input 3 negative |
| Broche 10 | AINP4 — Analog input 4 positive |
| Broche 11 | AINM4 — Analog input 4 negative |
| Broche 12 | AVDD — Analog 3.3 V supply |
| Broche 13 | REFT — Internal reference top |
| Broche 14 | REFB — Internal reference bottom |
| Broche 15 | REFCM — Reference common-mode |
| Broche 16 | AVDD — Analog 3.3 V supply |
| Broche 17 | GND — Analog ground |
| Broche 18 | CLKP — Clock input positive |
| Broche 19 | CLKM — Clock input negative |
| Broche 20 | SCLK — Serial interface clock |
| Broche 21 | SDATA — Serial interface data |
| Broche 22 | SEN — Serial interface enable |
| Broche 23 | RESET — Hardware reset, active low |
| Broche 24 | PDN — Power down, active low |
| Broche 25 | DVDD — Digital 1.8 V supply |
| Broche 26 | GND — Digital ground |
| Broche 27 | LVDS_TEST — LVDS test mode enable |
| Broche 28 | GND — Digital ground |
| Broche 29 | DCLKOUTP — DDR clock output positive |
| Broche 30 | DCLKOUTM — DDR clock output negative |
| Broche 31 | DOUT8P — LVDS data output 8 positive |
| Broche 32 | DOUT8M — LVDS data output 8 negative |
| Broche 33 | DOUT7P — LVDS data output 7 positive |
| Broche 34 | DOUT7M — LVDS data output 7 negative |
| Broche 35 | DOUT6P — LVDS data output 6 positive |
| Broche 36 | DOUT6M — LVDS data output 6 negative |
| Broche 37 | DOUT5P — LVDS data output 5 positive |
| Broche 38 | DOUT5M — LVDS data output 5 negative |
| Broche 39 | DOUT4P — LVDS data output 4 positive |
| Broche 40 | DOUT4M — LVDS data output 4 negative |
| Broche 41 | DOUT3P — LVDS data output 3 positive |
| Broche 42 | DOUT3M — LVDS data output 3 negative |
| Broche 43 | DOUT2P — LVDS data output 2 positive |
| Broche 44 | DOUT2M — LVDS data output 2 negative |
| Broche 45 | DOUT1P — LVDS data output 1 positive |
| Broche 46 | DOUT1M — LVDS data output 1 negative |
| Broche 47 | DVDD — Digital 1.8 V supply |
| Broche 48 | GND — Digital ground |
| Broche 49 | AVDD — Analog 3.3 V supply |
| Broche 50 | GND — Analog ground |
| Broche 51 | AVDD — Analog 3.3 V supply |
| Broche 52 | FS_RANGE — Full-scale range select |
| Broche 53 | GAIN_EN — Per-channel gain adjust enable |
| Broche 54 | OFFSET_EN — Per-channel offset adjust enable |
| Broche 55 | LVDS_CNTL — LVDS control register select |
| Broche 56 | TEST1 — Test pin 1 (factory use) |
| Broche 57 | TEST2 — Test pin 2 (factory use) |
| Broche 58 | NC — Not connected (per datasheet) |
| Broche 59 | NC — Not connected (per datasheet) |
| Broche 60 | NC — Not connected (per datasheet) |
| Broche 61 | NC — Not connected (per datasheet) |
| Broche 62 | NC — Not connected (per datasheet) |
| Broche 63 | NC — Not connected (per datasheet) |
| Broche 64 | NC — Not connected (per datasheet) |
Applications typiques
ADS6425IRGCR convient pour 6 applications: Wireless Base Station Receiver, Medical Ultrasound Beamforming, Multi-Channel Data Acquisition System, Radar and Lidar Front-End, Test and Measurement Instrumentation, Communications Test Equipment.
Wireless Base Station Receiver
The ADS6425IRGCR is well-suited for wireless base station receivers where four simultaneous RF/IF channels must be digitized with tight channel-to-channel timing alignment. The 125 MSPS per-channel rate captures wide-bandwidth carriers while the 12-bit resolution supports >70 dB SNR for clean demodulation. Its serialized LVDS outputs minimize FPGA I/O pins, simplifying PCB routing in densely packed multi-antenna MIMO systems. The 3.3 V analog and 1.8 V digital supply rails align with typical base-station power architectures.
Recommandé
Medical Ultrasound Beamforming
In ultrasound beamformer front-ends, the ADS6425IRGCR provides 12-bit digitization at 125 MSPS across four channels, capturing return echoes from multiple transducer elements with low latency suitable for digital beamforming algorithms. The pipelined architecture adds only a few clock cycles of delay, preserving axial accuracy. The LVDS serialized interface allows many ADCs to share a common FPGA, scaling channel counts to 32, 64, or 128 elements without overwhelming the receiver.
Recommandé
Multi-Channel Data Acquisition System
For industrial data acquisition systems requiring simultaneous sampling of multiple sensor channels, the ADS6425IRGCR delivers 125 MSPS capture across four differential inputs, with the serialized LVDS output reducing FPGA pin count. The differential analog inputs reject common-mode noise from long sensor cables in factory automation environments. The exposed thermal pad of the VQFN-64 package enables reliable operation across the -40C to +85C industrial temperature range without external heatsinking.
Recommandé
Radar and Lidar Front-End
The ADS6425IRGCR fits radar and lidar front-end processing where four simultaneous IF or baseband channels must be sampled at high speed. The 125 MSPS rate captures wide-bandwidth chirp or pulse signals with adequate margin, and the 12-bit resolution preserves amplitude information needed for target detection. The pipelined architecture's deterministic latency simplifies range-bin calculations, while the LVDS interface preserves signal integrity over longer board traces to the FPGA processor.
Recommandé
Test and Measurement Instrumentation
In test and measurement instruments such as digital oscilloscopes and spectrum analyzers, the ADS6425IRGCR provides four-channel simultaneous sampling at 125 MSPS with 12-bit resolution. The serialized LVDS outputs reduce FPGA pin requirements, allowing more channels or higher-density processing. The internal clock stabilizer simplifies external PLL requirements, and the wide operating temperature range suits both laboratory and field-portable instruments.
Recommandé
Communications Test Equipment
The ADS6425IRGCR's combination of 125 MSPS sampling, four differential channels, and serialized LVDS outputs makes it suitable for communications test equipment measuring modulated signals. The 12-bit resolution captures EVM-sensitive constellations, and the simultaneous sampling maintains phase coherence across MIMO or multi-carrier test vectors. The 3.3 V AVDD plus 1.8 V DVDD rails integrate cleanly with FPGA-based signal processing platforms used in production test stations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADS6425IRGCR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADS6425IRGCT | ADS6424IRGCR | ADS6424IRGCT | ADS6423IRGCR | ADS6422IRGCR | ADS6422IRGC25 |
|---|---|---|---|---|---|---|---|
| Package | VQFN-64 (RGC) 9x9 mm | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Sampling Rate | 125 MSPS | 125 MSPS | 105 MSPS | 105 MSPS | 80 MSPS | 65 MSPS | 65 MSPS |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Number of Channels | 4 differential | 4 differential | 4 differential | 4 differential | 4 differential | 4 differential | 4 differential |
| Data Output Interface | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS | Serialized LVDS |
| Analog Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Pinout Compatibility | Reference | Identical | Identical | Identical | Identical | Identical | Identical |
Principaux différenciateurs
- Highest sampling rate in the ADS642X quad-channel family (vs ADS6424IRGCR)
- Four differential channels with simultaneous sampling (vs ADS6422IRGCR)
- Serialized LVDS interface minimizes FPGA pin count (vs Parallel-output ADC families)
Notes de conception
The ADS6425IRGCR requires a clean 3.3 V AVDD and 1.8 V DVDD supply; both rails should come from independent low-noise LDOs (such as TPS7A47xx family) rather than switching converters to preserve 12-bit SNR. Place 1 uF and 0.1 uF ceramic bypass capacitors close to each AVDD and DVDD pin pair, with a ferrite bead or RC filter between the analog and digital ground returns to break high-frequency ground loops that can couple into the analog inputs.
Route differential analog inputs (AINPx/AINMx) as length-matched 100 ohm differential pairs from the front-end driver or transformer to the ADC pins. Keep analog traces away from the LVDS data output pairs (DOUT1P/M through DOUT8P/M) and the DDR clock output (DCLKOUTP/M) to minimize digital-to-analog crosstalk. The exposed thermal pad (pin 65) must be soldered to a continuous ground plane with multiple vias for low theta-JA thermal dissipation.
Terminate each LVDS output pair (DOUTxP/DOUTxM) with a 100 ohm differential resistor placed within 1 cm of the FPGA receiver pins. Match trace lengths within each LVDS pair to within 0.5 mm to maintain differential balance, and avoid right-angle bends. The DDR clock output (DCLKOUTP/M) should be routed with controlled impedance and reference planes kept continuous to prevent reflections that would degrade timing margin at 125 MSPS.
Do not leave the input clock (CLKP/CLKM) floating; the ADS6425IRGCR requires a continuous differential LVDS or LVPECL clock to maintain stable sampling. Avoid driving the analog inputs beyond AVDD or below GND, as this will forward-bias the input ESD diodes and introduce nonlinearity. When using the internal reference, ensure REFT, REFB, and REFCM pins have proper 0.1 uF decoupling to AVSS to prevent reference instability at high input frequencies.
Informations de conformité
RoHS compliant per TI product page. Lead-free and halogen-free packaging. Industrial temperature grade -40C to +85C, not AEC-Q100 qualified for automotive applications. For automotive-qualified alternatives, see TI's automotive-grade ADC portfolio.
