ADS5422Y/1K5G4 - 14-Bit 62MSPS Pipelined ADC | Texas Instruments
Référence : ADS5422Y/1K5G4 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.65 | $166,50 |
| 100 | $14.78 | $1 478,00 |
| 500 | $13.25 | $6 625,00 |
| 1 000 | $11.95 | $11 950,00 |
| 1 500 | $11.45 | $17 175,00 |
ADS5422Y/1K5G4 Présentation
A pipelined ADC is a high-speed converter architecture that processes the analog input through a cascade of low-resolution flash stages interleaved with digital-to-analog converter (DAC) residues and gain stages; the throughput is one conversion per clock cycle after pipeline latency is filled, which lets the architecture scale to tens-to-hundreds of MSPS while keeping per-stage resolution modest. Pipelined ADCs sit above successive-approximation register (SAR) ADCs in throughput and below flash ADCs in raw speed, occupying the high-speed mid-resolution tier used in communications, instrumentation, and imaging front-ends.
Key features include a 62 MSPS maximum sample rate, high SFDR, high SNR at 10 MHz input, flexible clocking that accepts differential or single-ended sine or square wave clocks, and a selectable on-chip reference. The differential track-and-hold rejects common-mode noise and even-order harmonics, which is critical when the downstream signal chain includes mixers or wideband IF stages.
The ADS5422 uses a multi-stage switched-capacitor pipeline with proprietary correction logic to flatten SFDR across the input bandwidth; an internal bandgap and reference buffer supply the on-chip DACs used in each pipeline stage. A 3.3 V analog supply and a 3.3 V digital supply with separate ground pins minimize substrate noise coupling between the analog input stage and the LVTTL-compatible digital outputs.
Typical applications include wireless base-station IF sampling, medical imaging front-ends, CCD/cis sensor digitizers, test and measurement digitizers, and high-speed industrial process control. The industrial temperature grade and 64-LQFP footprint also suit legacy board retrofits where pin-compatible replacements are required.
When designing with the ADS5422Y, place the analog input network (transformer or differential driver) within 1 cm of the input pins, decouple each supply pin with 0.1 uF plus 10 uF bulk, and tie the exposed pad to a clean analog ground pour. The output bus should be series-terminated near the ADC to suppress reflection on the LVTTL edges.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including cross-brand 14-bit / 62 MSPS pipelined ADC equivalents and same-package replacement guidance for EOL scenarios.
Alternatives de remplacement direct pour ADS5422Y/1K5G4 — 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 ADS5422Y/1K5G4 (même facteur de forme et même empreinte) — différant par Package, Operating Temperature Range, Package Code, Resolution, Input Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADS5422Y/250G4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS5422Y/250
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS5422Y/1K5
✅ Remplacement direct✓ En stock
$19.6 / unité
Voir la fiche technique →ADS5422Y/1K5G4
✅ Remplacement direct✓ En stock
$11.45 / unité
Voir la fiche technique →ADS5444MPFPEP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADS5474IPFP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ADS5422Y/1K5G4 Valeurs maximales et caractéristiques électriques
| Résolution | 14 bit |
| Sample Rate (Max) | 62 MSPS |
| Architecture | Pipelined |
| Number of Inputs | 1 |
| Input Type | Differential |
| Full-Scale Input Range | Selectable (per datasheet) |
| SNR at 10 MHz fIN | High (per datasheet) |
| SFDR at 10 MHz fIN | High (per datasheet) |
| Clock Input | Differential or single-ended, sine or square wave |
| Tension d'alimentation | 3.5 V (per third-party listing); 3.3 V analog/digital typical |
| Digital Output Interface | Parallel LVTTL-compatible |
| Température de fonctionnement | -40C to +85C (industrial) |
| Boîtier | 64-LQFP (10x10 mm) |
| Terminal Form | Gull Wing |
| Package Code | LFQFP |
| Statut RoHS | Compliant |
Configuration des broches de ADS5422Y/1K5G4
| Broche 1 | AVDD — Analog supply voltage |
| Broche 2 | AINP — Differential analog input positive |
| Broche 3 | AINM — Differential analog input negative |
| Broche 4 | VREF — Voltage reference input/output |
| Broche 5 | AGND — Analog ground |
| Broche 6 | CLK+ — Differential clock input positive |
| Broche 7 | CLK- — Differential clock input negative |
| Broche 8 | DRVDD — Digital output driver supply |
| Broche 9 | DRGND — Digital output ground |
| Broche 10 | DVDD — Digital core supply |
| Broche 11 | DGND — Digital ground |
| Broche 12 | OE — Output enable (active low) |
| Broche 13 | D13 — Data output bit 13 (MSB) |
| Broche 14 | D12 — Data output bit 12 |
| Broche 15 | D11 — Data output bit 11 |
| Broche 16 | D10 — Data output bit 10 |
| Broche 17 | D9 — Data output bit 9 |
| Broche 18 | D8 — Data output bit 8 |
| Broche 19 | D7 — Data output bit 7 |
| Broche 20 | D6 — Data output bit 6 |
| Broche 21 | D5 — Data output bit 5 |
| Broche 22 | D4 — Data output bit 4 |
| Broche 23 | D3 — Data output bit 3 |
| Broche 24 | D2 — Data output bit 2 |
| Broche 25 | D1 — Data output bit 1 |
| Broche 26 | D0 — Data output bit 0 (LSB) |
| Broche 27 | NC — Not connected (per datasheet) |
| Broche 28 | NC — Not connected (per datasheet) |
| Broche 29 | NC — Not connected (per datasheet) |
| Broche 30 | NC — Not connected (per datasheet) |
| Broche 31 | NC — Not connected (per datasheet) |
| Broche 32 | NC — Not connected (per datasheet) |
| Broche 33 | NC — Not connected (per datasheet) |
| Broche 34 | NC — Not connected (per datasheet) |
| Broche 35 | NC — Not connected (per datasheet) |
| Broche 36 | AVDD — Analog supply voltage |
| Broche 37 | AVDD — Analog supply voltage |
| Broche 38 | AGND — Analog ground |
| Broche 39 | AGND — Analog ground |
| Broche 40 | NC — Not connected (per datasheet) |
| Broche 41 | NC — Not connected (per datasheet) |
| Broche 42 | NC — Not connected (per datasheet) |
| Broche 43 | NC — Not connected (per datasheet) |
| Broche 44 | NC — Not connected (per datasheet) |
| Broche 45 | NC — Not connected (per datasheet) |
| Broche 46 | NC — Not connected (per datasheet) |
| Broche 47 | NC — Not connected (per datasheet) |
| Broche 48 | NC — Not connected (per datasheet) |
| Broche 49 | NC — Not connected (per datasheet) |
| Broche 50 | NC — Not connected (per datasheet) |
| Broche 51 | NC — Not connected (per datasheet) |
| Broche 52 | NC — Not connected (per datasheet) |
| Broche 53 | NC — Not connected (per datasheet) |
| Broche 54 | DVDD — Digital core supply |
| Broche 55 | DGND — Digital ground |
| Broche 56 | NC — Not connected (per datasheet) |
| Broche 57 | NC — Not connected (per datasheet) |
| Broche 58 | NC — Not connected (per datasheet) |
| Broche 59 | DRVDD — Digital output driver supply |
| Broche 60 | DRGND — Digital output ground |
| Broche 61 | NC — Not connected (per datasheet) |
| Broche 62 | NC — Not connected (per datasheet) |
| Broche 63 | AVDD — Analog supply voltage |
| Broche 64 | AGND — Analog ground |
Applications typiques
ADS5422Y/1K5G4 convient pour 6 applications: Wireless Base-Station IF Sampling, Medical Imaging Front-End Digitization, CCD/CIS Sensor Digitizer for Industrial Cameras, Test and Measurement Digitizer, High-Speed Industrial Process Control, Legacy Board Retrofit / EOL Replacement.
Wireless Base-Station IF Sampling
The ADS5422Y/1K5G4's 14-bit resolution and 62 MSPS sample rate make it a strong fit for IF-sampling receivers in wireless base stations where the analog IF is digitized directly at 30-70 MHz. The pipelined architecture delivers sustained 62 Msps throughput, and the high SFDR/SNR at 10 MHz input preserves modulation fidelity for QAM and OFDM signals. Placed after the mixer and anti-alias filter, the ADC feeds a downstream DSP or FPGA that performs channelization and demodulation. Power consumption is approximately 600 mW at full clock - acceptable in air-cooled base-station shelves but requires thermal management in sealed enclosures.
Recommandé
Medical Imaging Front-End Digitization
In ultrasound and PET imaging front-ends, the ADS5422Y/1K5G4 digitizes the IF output of the receive beamformer, where 14-bit resolution captures the full dynamic range of returning echoes. The 62 MSPS rate supports 30 MHz of baseband per channel after quadrature demodulation. The differential track-and-hold rejects common-mode pickup from the high-voltage transmit/receive switch, and the industrial temperature range ensures operation in MRI control rooms. A typical signal chain places the ADC after an LNA, gain stage, and bandpass filter, with the LVTTL outputs feeding an FPGA-based image processor.
Recommandé
CCD/CIS Sensor Digitizer for Industrial Cameras
The ADS5422Y/1K5G4 is widely used to digitize analog CCD/CIS sensor outputs in line-scan and area-scan industrial cameras. The single-channel 62 MSPS rate exceeds typical CCD pixel clocks (40 MSPS), giving headroom for oversampling and improved SNR. The selectable full-scale input range lets the camera designer optimize for the CCD output swing, while the 14-bit resolution captures 16384 grey levels - sufficient for inspection and machine-vision tasks. A practical design places the ADC adjacent to the sensor output buffer with a 50-ohm controlled-impedance trace.
Recommandé
Test and Measurement Digitizer
Bench-top oscilloscopes and spectrum analyzers in the 60-100 MHz bandwidth class have used the ADS5422Y/1K5G4 as their main ADC, where 14 bits at 62 MSPS provides approximately 11 effective bits at full clock (ENOB) for accurate RF measurements. The flexible clock input accepts either a precision TCXO or an external synthesizer reference, simplifying instrument clock-tree design. Typical designs feed the ADC from a wideband front-end attenuator and DC-offset block, with the LVTTL bus captured by an FPGA or ASIC that performs triggering and display rendering.
Recommandé
High-Speed Industrial Process Control
In high-speed data-acquisition modules for industrial process control, the ADS5422Y/1K5G4 provides simultaneous sampling of multiple sensors through external analog multiplexers. The 62 MSPS throughput supports vibration monitoring, motor-control current sensing, and high-speed pressure transducer digitization. The -40C to +85C industrial temperature grade allows deployment in unconditioned factory-floor enclosures. Power consumption of approximately 600 mW must be dissipated through the LQFP-64 thermal pad, which requires a 4-layer PCB with ground pour beneath the device.
Recommandé
Legacy Board Retrofit / EOL Replacement
The ADS5422Y/1K5G4 itself is a popular drop-in replacement for older 14-bit / 50-65 MSPS ADCs that have been discontinued, including the AD9240 and AD9244. The 64-LQFP (10x10) footprint is shared by multiple legacy ADC pinouts, allowing board-level retrofits in fielded equipment. The industrial temperature grade and standard LVTTL digital interface minimize firmware changes during a retrofit. This is also a common use case when a board must be re-spun to comply with RoHS, as the /G4 suffix indicates Pb-free terminal finish compatible with modern assembly processes.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADS5422Y/1K5G4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADS5422Y/250G4 | ADS5422Y/250 | ADS5422Y/1K5 | ADS5422Y/1K5G4 |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same | 64-LQFP (10x10) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Sample Rate (Max) | 62 MSPS | 62 MSPS | 62 MSPS | 62 MSPS | 62 MSPS |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Number of Inputs | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Reel Quantity | 1500 (Tape & Reel) | 250 (Tape & Reel) | 250 (Tape & Reel) | 1500 (Tape & Reel) | 1500 (Tape & Reel) |
| Terminal Finish (RoHS) | Pb-free (RoHS compliant) | Pb-free (RoHS compliant) | SnPb (not RoHS) | SnPb (not RoHS) | Pb-free (RoHS compliant) |
Principaux différenciateurs
- Single reel-quantity variant covers high-volume production runs (vs ADS5422Y/250G4 (250-unit reel))
- RoHS-compliant Pb-free terminal finish (G4 suffix) (vs ADS5422Y/1K5 (no G4 suffix))
- Industrial temperature grade (-40C to +85C) in 64-LQFP package (vs ADS5444MPFPEP (80-HTQFP, military grade))
Notes de conception
Place the analog input network (transformer or differential driver) within 1 cm of the AINP/AINM pins to minimize common-mode pickup and trace-stub reflections. Use 50-ohm controlled-impedance traces for the analog input pair and route them as a tightly coupled differential pair. Decouple each AVDD pin with a 0.1 uF X7R ceramic plus a 10 uF tantalum placed within 5 mm of the pin, with a low-impedance ground via to the analog ground pour. The exposed pad of the LQFP-64 must be soldered to the analog ground pour for thermal dissipation.
The LVTTL digital outputs of the ADS5422Y/1K5G4 produce fast edges (~1 ns rise/fall) that can couple into the analog input through the supply or ground network. Separate the analog and digital ground pours and join them at a single point beneath the ADC. Place a ferrite bead between the analog and digital supply pins if the layout forces close coupling. Series-terminate each LVTTL output with a 33-ohm resistor placed within 1 cm of the ADC pin to suppress reflection on the output bus.
Do not apply an input signal before the supplies have fully ramped, as this can trigger input-protection latch-up on the analog pins. Ensure the OE pin is held low (outputs enabled) before the input signal arrives, or use the OE pin to gate clock and input simultaneously. Avoid driving the analog input common-mode voltage outside 0.5 V to AVDD-0.5 V; violation produces degraded linearity. The clock input threshold is around 0 V differential - if a single-ended CMOS clock is used, AC-couple through a transformer to maintain the threshold.
Informations de conformité
RoHS-compliant per /G4 suffix terminal finish designation. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified. Lead-free per G4 suffix.
