IDTADC1206S055H-C18 - 12-bit 55 MSPS Flash ADC | 44-PQFP
N.º de pieza: IDTADC1206S055H-C18 ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $11.4 | $5.700,00 |
| 1.000 | $9.75 | $9.750,00 |
IDTADC1206S055H-C18 Descripción general
A flash ADC (also called a direct-conversion ADC) uses a bank of 2^N - 1 parallel comparators to resolve an analog input in a single compare-and-encode step. The flash topology is the fastest ADC architecture available because conversion completes in one comparator latch plus encoder propagation delay, but power consumption and die area grow exponentially with resolution. The IDTADC1206S055H-C18 sits at the practical resolution ceiling for pure-flash designs at 12 bits, and is best understood within the taxonomy: ADC -> data converter -> data acquisition IC -> mixed-signal IC -> semiconductor.
Key specifications of the IDTADC1206S055H-C18 include 12-bit resolution, 1 analog input channel, 55 MSPS sampling rate, 5 V analog and digital supply, and parallel output data interface. The differential input configuration improves common-mode noise rejection in noisy digital environments. The 44-PQFP (10x10) package provides adequate thermal dissipation for moderate clock rates and supports standard SMT reflow profiles.
The flash architecture inherent in the IDTADC1206S055H-C18 makes it well suited to applications such as digital oscilloscope front-ends, radar IF digitisation, video broadcast equipment, and high-speed industrial inspection. The 55 MSPS sampling rate comfortably digitises IF signals up to approximately 25 MHz under Nyquist, while the 12-bit resolution gives 72 dB dynamic range suitable for many instrumentation and imaging tasks.
When designing with this ADC, allocate a substantial analog ground plane under the input pins, decouple AVDD and DVDD with separate 100 nF ceramic capacitors as close to the pins as possible, and drive the analog input with a low-impedance differential amplifier terminated for the specified common-mode voltage. The parallel output bus can couple switching noise back into the analog front-end, so route output traces over a continuous digital ground and avoid running them parallel to the input traces.
Alternativas directas para IDTADC1206S055H-C18 — 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 IDTADC1206S055H-C18 (mismo factor de forma y huella) — difiere en Sampling Rate, Resolution, Package, Manufacturer, Packaging.
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IDTADC1206S070H-C18
✅ Sustitución directa✓ En stock
$9.75 / unidad
Ver hoja de datos →IDTADC1206S040H-C18
✅ Sustitución directa✓ En stock
$11.95 / unidad
Ver hoja de datos →IDTADC1206S055H-C18 Valores máximos y características eléctricas
| Resolución | 12 bit |
| Number of Channels | 1 |
| Frecuencia de muestreo | 55 MSPS |
| Architecture | Flash |
| Input Type | Differential |
| Data Interface | Parallel |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 5 V |
| Configuration | S/H-ADC |
| Number of A/D Converters | 1 |
| Encapsulado | 44-PQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Manufacturer | Renesas Electronics (formerly IDT) |
Guía de configuración de pines de IDTADC1206S055H-C18 44-pqfp (10x10 mm)
Configuración de pines para IDTADC1206S055H-C18 (encapsulado 44-pqfp (10x10 mm)). 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 IDTADC1206S055H-C18.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
IDTADC1206S055H-C18 es adecuado para 6 aplicacións: Digital Oscilloscope Front-End, Radar IF Signal Digitisation, Video Broadcast Equipment, High-Speed Industrial Inspection, Communications IF Digitisation, Medical Imaging Front-End.
Digital Oscilloscope Front-End
The IDTADC1206S055H-C18 is well suited to digital oscilloscope front-end digitisation thanks to its flash architecture, which delivers single-cycle conversion latency critical for real-time waveform capture. With 12-bit resolution and 55 MSPS sampling, the part comfortably digitises analog bandwidth up to approximately 25 MHz under Nyquist. The parallel output bus enables direct connection to an FPGA or ASIC for triggering and memory write logic. Differential analog inputs reject common-mode noise from the switching power supplies typical in bench instruments. For 100 MHz+ bandwidth scopes, designers would need the higher-speed -070H family member, but for 25 MHz class DSO designs the -055H offers an excellent balance of speed, resolution, and cost in a 44-PQFP footprint that simplifies board layout and rework.
Recomendado
Radar IF Signal Digitisation
Radar intermediate-frequency (IF) digitisation demands single-cycle conversion latency to preserve pulse timing accuracy, which is exactly what the flash architecture of the IDTADC1206S055H-C18 provides. The 12-bit resolution and 55 MSPS sampling rate suit narrowband IF stages up to 25 MHz, while the differential input rejects common-mode noise from RF front-end leakage. The 5 V analog and digital supply rails are compatible with traditional radar receiver designs. The 44-PQFP (10x10) package provides adequate thermal dissipation for continuous sampling at full rate. For pulse-Doppler radar systems requiring wider instantaneous bandwidth, the -070H family member would be the natural upgrade within the same footprint, enabling PCB reuse across product variants.
Recomendado
Video Broadcast Equipment
Standard-definition and component-video broadcast equipment is a natural fit for the IDTADC1206S055H-C18, whose 55 MSPS sampling rate exceeds the 27 MHz Nyquist requirement for SD video with comfortable margin. The 12-bit resolution gives 72 dB dynamic range, sufficient for broadcast-quality video capture and processing, while the single-cycle latency eliminates pipeline-delay artifacts that can corrupt color decoding in oversampled video paths. Parallel output enables direct interface to FPGA-based video processing pipelines. The 5 V supply rails match traditional broadcast equipment power architectures, and the 44-PQFP package is well proven in video infrastructure hardware. For HD-SDI applications requiring 74.25 MSPS, the -070H family member would be the appropriate upgrade.
Recomendado
High-Speed Industrial Inspection
Machine vision and high-speed industrial inspection systems benefit from the IDTADC1206S055H-C18's flash-architecture single-cycle latency, which simplifies real-time image processing pipelines. The 55 MSPS sampling supports line-scan cameras operating at moderate line rates, and the 12-bit resolution provides adequate grayscale depth for most defect-detection applications. The differential analog input integrates well with CCD/CIS sensor output stages that produce differential video signals. The 44-PQFP surface-mount package suits high-volume automated assembly. For ultra-high-speed inspection requiring multi-megasample rates, the -070H family member or a different ADC architecture (pipeline) would be required, but the -055H covers a large portion of the mid-speed industrial vision market.
Recomendado
Communications IF Digitisation
Communications receiver IF stages at 10-20 MHz benefit from the IDTADC1206S055H-C18's 55 MSPS sampling rate and 12-bit resolution, providing 72 dB dynamic range suitable for many digital receiver architectures. The flash architecture's single-cycle latency simplifies AGC loop timing in software-defined radio applications where the ADC feeds a digital demodulator. The 5 V supply rails integrate with traditional IF strip designs, while the parallel output bus connects directly to DSP or FPGA baseband processors. The differential input provides common-mode rejection for noisy IF environments. For wideband SDR applications, the -070H family member or a 14-bit pipeline ADC would offer better trade-offs, but the -055H remains a strong choice for narrowband IF channels.
Recomendado
Medical Imaging Front-End
Ultrasound and other medical imaging systems benefit from the IDTADC1206S055H-C18's flash architecture, which provides single-cycle conversion latency essential for real-time beamforming and signal processing. The 12-bit resolution offers adequate dynamic range for many imaging modalities, while the 55 MSPS sampling rate supports transducer arrays up to moderate channel counts. The 44-PQFP surface-mount package enables high-density multi-channel board designs. Differential analog inputs reject common-mode noise from switching power supplies typical in medical equipment. For premium imaging systems requiring 14-bit resolution or higher sampling rates, the -070H family member or a 14-bit pipeline ADC would be more appropriate, but the -055H covers a significant portion of the entry-level medical imaging market.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para IDTADC1206S055H-C18 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | IDTADC1206S070H-C18 | IDTADC1206S040H-C18 |
|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 44-PQFP (10x10 mm) | 44-PQFP (10x10 mm) - same | 44-PQFP (10x10 mm) - same |
| Resolution | 12 bit | 12 bit | 12 bit |
| Sampling Rate | 55 MSPS | 70 MSPS (+27%) | 40 MSPS (-27%) |
| Number of Channels | 1 | 1 | 1 |
| Architecture | Flash | Flash | Flash |
| Analog Supply | 5 V | 5 V | 5 V |
| Digital Supply | 5 V | 5 V | 5 V |
| Input Type | Differential | Differential | Differential |
| Data Interface | Parallel | Parallel | Parallel |
Diferenciadores clave
- Flash architecture for single-cycle latency (frente a Pipeline ADC alternatives)
- 55 MSPS speed grade in the IDTADC1206 family (frente a IDTADC1206S040H-C18)
- Drop-in compatible with -070H and -040H family members (frente a IDTADC1206S070H-C18)
Notas de diseño
Estimated: At 55 MSPS continuous sampling with 5 V analog and digital supplies, the IDTADC1206S055H-C18 typically draws approximately 150-200 mA from each rail based on flash-architecture power scaling. Decouple AVDD and DVDD separately with 100 nF X7R ceramic capacitors placed within 5 mm of each supply pin, and add a 10 uF bulk capacitor on each rail. The flash architecture draws significant digital switching current on the parallel output transitions, so keeping the DVDD decoupling local is critical to prevent digital switching noise from coupling into the analog front-end.
Allocate a solid analog ground plane under the input pins and a separate digital ground plane under the output bus, joined at a single point near the ADC. The 44-PQFP (10x10) package has gull-wing leads on 0.8 mm pitch; use a 4-layer PCB with dedicated power and ground planes for best noise performance. Route the parallel output traces as a matched-length bus over the digital ground plane, and avoid routing analog input traces parallel to digital output traces to minimize coupling.
The flash architecture's single-cycle latency makes the IDTADC1206S055H-C18 sensitive to clock jitter, which directly degrades SNR at high input frequencies. Use a low-jitter clock source (jitter < 5 ps RMS) and keep the clock trace short and impedance-controlled. The differential analog input should be driven by a low-impedance differential amplifier (such as a transformer driver or fully differential op-amp) terminated for the specified common-mode voltage, with input bandwidth limiting applied before the ADC to prevent out-of-band noise from folding into the Nyquist band.
Información de cumplimiento
Compliance status not specified in verified web data; [DATA_NEEDED] for RoHS, REACH, lead-free, and halogen-free status. The part is manufactured by IDT (now Renesas) and is subject to Renesas standard compliance documentation.