ADS5422Y/1K5 - 14-Bit 62MSPS Pipeline ADC | Texas Instruments
N.º de pieza: ADS5422Y/1K5 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $26.2 | $262,00 |
| 100 | $23.95 | $2.395,00 |
| 500 | $21.4 | $10.700,00 |
| 1.000 | $19.6 | $19.600,00 |
ADS5422Y/1K5 Descripción general
An analog-to-digital converter (ADC) is a mixed-signal semiconductor that translates continuous analog voltages into discrete digital codes, forming the bridge between the analog and digital domains in modern electronic systems. Pipeline ADCs specifically use a multi-stage architecture where each stage samples, holds, and converts a coarse sub-code, with redundancy correcting inter-stage gain/offset errors. The pipeline topology achieves excellent throughput-to-power efficiency, making it the workhorse architecture for sampling rates from a few MSPS to several hundred MSPS in applications such as communications, instrumentation, and radar.
The ADS5422Y/1K5 features differential analog inputs that suppress even-order harmonic distortion and allow selectable full-scale input ranges via an internal reference. Its high spurious-free dynamic range (SFDR) and high signal-to-noise ratio (SNR) at 10 MHz input make it well suited for wideband IF sampling, while the differential clock input accepts low-level sinusoids, improving the ADC's aperture jitter tolerance. The integrated track-and-hold preserves high linearity across the Nyquist bandwidth, enabling direct sampling at IF frequencies.
Architecturally, the ADS5422Y/1K5 combines a wideband linear track-and-hold front end, a multi-stage switched-capacitor pipeline core, and CMOS-compatible digital outputs. Internal bandgap references and trimming registers calibrate gain and offset on-chip, removing the need for external precision references while still allowing the user to overdrive the input common-mode for maximum SFDR optimization.
Typical applications include communications receivers (GSM/EDGE/TDMA base-station IF digitizing), radar and lidar digitizers, medical imaging front ends (ultrasound beamformers), cable-headend modulators, and high-speed data-acquisition systems for test and measurement. The industrial temperature grade of -40C to +85C covers the majority of outdoor and industrial deployments.
When using this ADC, allocate careful PCB routing for the analog and digital grounds as well as bypass-capacitor placement; bypassing AVDD with a 10 uF ceramic plus a 0.1 uF HF capacitor within 5 mm of each pin minimizes spurs. Ensure the encode clock source has low jitter, ideally below 0.5 ps RMS, to preserve SNR at high input frequencies.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the Texas Instruments datasheet without duplicating it.
Alternativas directas para ADS5422Y/1K5 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ADS5422Y/1K5 (mismo factor de forma y huella) — difiere en Clock Input, Package Code.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADS5422Y/250
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADS5422Y/250G4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADS5422Y/1K5G4
✅ Sustitución directa✓ En stock
$11.45 / unidad
Ver hoja de datos →ADS5422Y
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ADS5422Y/250G4G4
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADS5422Y/1K5 Valores máximos y características eléctricas
| Resolución | 14 bit |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Sample Rate (Maximum) | 62 MSPS |
| Analog Input Type | Differential |
| Encapsulado | 64-LQFP (10x10 mm) |
| Número de pines | 64 |
| Selectable Full-Scale Input | Yes (internal reference ranges selectable) |
| Clock Input | Differential or single-ended; accepts sine or square wave |
| Minimum Clock Input Level | 0.5 VPP |
| Track-and-Hold Amplifier | Premium linear THA at front end |
| Rango de temperatura de funcionamiento | -40C to +85C |
| Temperature Grade | Industrial |
| Tipo de montaje | Surface Mount |
| Terminal Form | Gull Wing |
| Package Code | LFQFP / LQFP-64 |
| Output Format | CMOS-compatible parallel |
| Estado RoHS | Compliant |
Guía de configuración de pines de ADS5422Y/1K5 lfqfp / lqfp-64
Configuración de pines para ADS5422Y/1K5 (encapsulado lfqfp / lqfp-64). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para ADS5422Y/1K5.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ADS5422Y/1K5 es adecuado para 6 aplicacións: Communications IF Sampling Receiver, Radar and Lidar Digitizer Front End, Medical Ultrasound Beamformer, Cable Headend / Broadband Modulator, High-Speed Data Acquisition (Test & Measurement), Software-Defined Radio (SDR) Baseband Digitizer.
Communications IF Sampling Receiver
The ADS5422Y/1K5 is ideally matched to digitize intermediate-frequency (IF) signals in communications base-station receivers thanks to its 14-bit resolution and 62 MSPS throughput. Its differential input structure with selectable full-scale range rejects even-order harmonics, allowing the designer to position the IF at 10-30 MHz where SFDR remains high. Placed after a SAW filter and IF amplifier, the ADC digitizes narrow-band GSM/EDGE/TDMA channels with the SNR needed for demodulator synchronization, and the LQFP-64 thermal envelope keeps junction temperatures within safe limits during continuous reception.
Recomendado
Radar and Lidar Digitizer Front End
In radar and lidar front-end electronics, the ADS5422Y/1K5's 62 MSPS sampling rate gives a Nyquist bandwidth sufficient for digitizing wideband chirp returns at intermediate frequencies. The on-chip premium track-and-hold preserves linearity at full input bandwidth, allowing the designer to place the ADC directly behind the IF mixer without an external THA. The differential clock input accepts low-jitter sine or square waveforms from a radar timing generator, and the 64-LQFP (10x10 mm) footprint is rugged enough for industrial-grade -40C to +85C temperature operation. Overall, the converter delivers the SFDR needed to resolve small targets against clutter.
Recomendado
Medical Ultrasound Beamformer
Ultrasound beamforming arrays demand wideband, high-dynamic-range ADCs to digitize amplified transducer returns before digital delay-and-sum beamforming. The ADS5422Y/1K5's 14-bit / 62 MSPS capability captures the 10-30 MHz content of typical abdominal and cardiac probes while preserving the dynamic range needed to discriminate tissue boundaries. Its differential inputs reject common-mode noise from piezoelectric pickup, and the LQFP-64 footprint lays out cleanly on the high-density multi-channel receiver boards used in ultrasound carts. The industrial temperature grade supports reliable operation in warm clinical equipment enclosures.
Recomendado
Cable Headend / Broadband Modulator
Cable-TV headend modulators and broadband QAM upconverters require linear, high-SFDR digitizers that can be driven directly by IF outputs from upstream modulators. The ADS5422Y/1K5's differential input architecture with selectable full-scale range accommodates the variable signal levels common in headend equipment. At 62 MSPS it can oversample the IF carrier with comfortable margin, easing the analog anti-alias filter design. Its industrial temperature range and surface-mount LQFP-64 footprint simplify integration into high-density rack-mounted headend chassis.
Recomendado
High-Speed Data Acquisition (Test & Measurement)
Bench-top and rack-mounted oscilloscope-style data acquisition systems benefit from the ADS5422Y/1K5's 14-bit resolution and 62 MSPS throughput to capture transient waveforms for offline analysis. Its high SFDR preserves harmonic content of the recorded signal, allowing accurate FFT-based measurements in test instruments, while the differential inputs allow direct connection to active probes. The internal selectable full-scale input range and clocking flexibility simplify the front-end design of a multi-channel digitizer chassis, and the LQFP-64 package provides good thermal performance for densely populated backplanes.
Recomendado
Software-Defined Radio (SDR) Baseband Digitizer
Software-defined radio platforms use the ADS5422Y/1K5 to digitize baseband or low-IF signals after the analog quadrature demodulator. With 14-bit resolution and 62 MSPS sampling, it captures the full bandwidth of wideband waveforms used in cognitive radio, spectrum monitoring, and amateur SDR receivers. The differential analog inputs reject switching noise from nearby digital circuitry, and the 64-LQFP footprint is easy to route on the mixed-signal SDR motherboard. The industrial temperature grade supports outdoor remote SDR deployments such as spectrum-monitoring nodes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADS5422Y/1K5 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ADS5422Y/250 | ADS5422Y/250G4 | ADS5422Y/1K5G4 | ADS5422Y |
|---|---|---|---|---|---|
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10) - same | LQFP-64 (10x10) - same | LQFP-64 (10x10) - same | LQFP-64 (10x10) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Maximum Sample Rate | 62 MSPS | 62 MSPS | 62 MSPS | 62 MSPS | 62 MSPS |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Number of Channels | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Reel Quantity | 1500 | 250 | 250 | 1500 | Tray or no reel designation |
| Pb-Free / RoHS | RoHS Compliant | RoHS Compliant | RoHS Compliant (G4 finish) | RoHS Compliant (G4 finish) | RoHS Compliant |
Diferenciadores clave
- Same silicon, broader reel-quantity offering within TI catalog (frente a ADS5422Y/250)
- Pb-free green finish for industry-standard RoHS programs (frente a ADS5422Y/1K5G4)
- Differential clock input down to 0.5 VPP - cleaner SNR than single-ended-only ADCs in this class (frente a ADS5422Y/250G4)
Notas de diseño
Partition the PCB into dedicated analog, digital, and ground regions with the ADS5422Y/1K5 straddling the analog/digital boundary. Route the differential analog inputs as a tightly-coupled pair (matched length within 0.5 mm) and place a 10 uF ceramic + 0.1 uF HF bypass on each AVDD pin within 5 mm. Keep the ENCODE clock traces short and guarded by ground pours to limit aperture-jitter coupling into the analog front end. Severity: critical.
Estimated: the ADS5422Y/1K5 analog front end draws on the order of 200-400 mW from AVDD depending on clock rate; total supply power including digital I/O can approach 1 W at 62 MSPS. Use a low-noise LDO (such as TPS7A4701) for the AVDD rail, and isolate the digital supplies via ferrite beads plus a separate 1.8/3.3 V regulator. Add bulk capacitance (>= 47 uF) at the regulator output to absorb transient current spikes on the encode-clock edge. Severity: critical.
Drive the clock input differentially with a low-jitter source (target < 0.5 ps RMS) for the best SNR at high input frequencies; a single-ended CMOS clock is acceptable but degrades even-order harmonics. Terminate the digital CMOS outputs with series 33 ohm resistors to limit overshoot, especially when the bus is longer than 25 mm. Use a dedicated data-capture FPGA with matched propagation delay on its data strobe to avoid capture errors. Severity: recommended.
Do not operate the ADS5422Y/1K5 with any analog input common-mode outside the datasheet range; this degrades SFDR substantially and may latch the device. Avoid driving the analog input before the encode clock is stable, as this disrupts internal bias networks. Finally, do not neglect decoupling on the DRVDD pins - missing DRVDD decoupling is a frequent root cause of elevated DNL in production units. Severity: critical.
Información de cumplimiento
RoHS-compliant per TI product page and DigiKey listing. Industrial temperature grade (not automotive AEC-Q100). Confirm halogen-free status with TI material declaration if required.
