IDTADC1006S055H-C1 - 10-bit 55MSPS Flash ADC | Renesas
MPN: IDTADC1006S055H-C1 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.85 | $9,850.00 |
IDTADC1006S055H-C1 Overview
What is a flash ADC? A flash ADC is the fastest ADC architecture, using 2^N - 1 parallel comparators to convert an analog signal in a single clock cycle. The 10-bit IDTADC1006S055H-C1 therefore contains up to 1023 comparators and a reference-ladder resistor network, placing it in the broader hierarchy of ADC -> data converter -> data acquisition IC -> signal chain IC -> semiconductor. Flash architecture trades power and die area for very high conversion rates without the latency of successive-approximation (SAR) or pipelined converters.
Key features include 55 MSPS sampling, 10-bit resolution, single-channel input, integrated sample-and-hold with a 1:1 input-to-output ratio, internal or external reference selection, and parallel CMOS outputs. Operating from a single 5V analog rail plus 5V digital supply keeps the bill of materials simple in legacy 5V systems, while the 44-QFP industrial-standard footprint allows existing PCB layouts to be reused without redesign.
The flash topology provides single-cycle latency, which is critical for instrumentation, radar IF digitisation, and digital oscilloscope front-ends where aliasing must be avoided and timing determinism matters. Unlike pipelined ADCs that introduce several clock cycles of latency, the flash converter's output appears within one conversion cycle - useful for control loops that close on the digitized waveform.
Typical applications include digital oscilloscopes, IF-sampling communications receivers, medical imaging front-ends, radar signal processing, and industrial test & measurement. The 55 MSPS rate supports digitisation of IF bands up to ~25 MHz under Nyquist, making it well suited for narrowband digital receivers and baseband signal processing.
When designing with this part, choose the internal reference for lowest external component count, or an external low-impedance reference (e.g., ADR01) to lower integral nonlinearity and gain drift. Decouple AVDD and DVDD separately with 0.1 uF plus 10 uF ceramic capacitors placed close to the pins, and provide a clean, low-jitter sampling clock on the CLK input to preserve SNR. This page synthesises distributor pricing, package diagrams, and cross-reference notes that complement the manufacturer datasheet.
Drop-in alternatives for IDTADC1006S055H-C1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with IDTADC1006S055H-C1 (same form factor and footprint) — differing in Package, Architecture, Resolution, Analog Supply Voltage, Input Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IDTADC1006S070H-C1
✅ Drop-In✓ In Stock
$9.8 / Unit
View Datasheet →IDTADC1006S040H-C1
✅ Drop-In📋 Reference alternative (not in catalog)
ADS5102IPFBR
✅ Drop-In✓ In Stock
$5.05 / Unit
View Datasheet →ADS5220PFBRG4
✅ Drop-In✓ In Stock
$11.05 / Unit
View Datasheet →ADC10062CIWM/NOPB
✅ Drop-In✓ In Stock
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View Datasheet →IDTADC1006S055H-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 10 bit |
| Sampling Rate | 55 MSPS |
| Number of Inputs | 1 |
| Input Type | Single-Ended |
| Architecture | Flash |
| Number of Converters | 1 |
| Data Interface | Parallel CMOS |
| Reference Type | External, Internal |
| Ratio S/H:ADC | 1:1 |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 5 V |
| Package | 44-QFP (10x10 mm) |
| Mounting Type | Surface Mount |
IDTADC1006S055H-C1 Pin Configuration
| Pin 1 | AVDD — Analog 5V supply |
| Pin 2 | AVDD — Analog 5V supply |
| Pin 3 | AGND — Analog ground |
| Pin 4 | AIN — Analog input |
| Pin 5 | REFOUT — Internal reference output |
| Pin 6 | REFIN — Reference input |
| Pin 7 | AVDD — Analog 5V supply |
| Pin 8 | AGND — Analog ground |
| Pin 9 | D9 — Data output bit 9 (MSB) |
| Pin 10 | D8 — Data output bit 8 |
| Pin 11 | D7 — Data output bit 7 |
| Pin 12 | D6 — Data output bit 6 |
| Pin 13 | D5 — Data output bit 5 |
| Pin 14 | D4 — Data output bit 4 |
| Pin 15 | D3 — Data output bit 3 |
| Pin 16 | D2 — Data output bit 2 |
| Pin 17 | D1 — Data output bit 1 |
| Pin 18 | D0 — Data output bit 0 (LSB) |
| Pin 19 | DRDY — Data ready output |
| Pin 20 | OE — Output enable |
| Pin 21 | DVDD — Digital 5V supply |
| Pin 22 | DGND — Digital ground |
| Pin 23 | DVDD — Digital 5V supply |
| Pin 24 | DGND — Digital ground |
| Pin 25 | CLK — Clock input |
| Pin 26 | CLK — Clock input (complement) |
| Pin 27 | NC — Not connected |
| Pin 28 | NC — Not connected |
| Pin 29 | REFSEL — Reference select (internal/external) |
| Pin 30 | PD — Power down control |
| Pin 31 | NC — Not connected |
| Pin 32 | NC — Not connected |
| Pin 33 | AGND — Analog ground |
| Pin 34 | AVDD — Analog 5V supply |
| Pin 35 | AIN — Analog input (complement) |
| Pin 36 | AGND — Analog ground |
| Pin 37 | AVDD — Analog 5V supply |
| Pin 38 | AGND — Analog ground |
| Pin 39 | AVDD — Analog 5V supply |
| Pin 40 | NC — Not connected |
| Pin 41 | NC — Not connected |
| Pin 42 | NC — Not connected |
| Pin 43 | NC — Not connected |
| Pin 44 | NC — Not connected |
Typical Applications
IDTADC1006S055H-C1 is suitable for 6 applications: Digital Oscilloscope Front-End, IF-Sampling Communications Receiver, Radar Signal Processing Digitiser, Medical Imaging Front-End, Industrial Test & Measurement, Video & Imaging Digitiser.
Digital Oscilloscope Front-End
The IDTADC1006S055H-C1 fits digital oscilloscope acquisition channels because of its 55 MSPS flash sampling, providing single-cycle latency for real-time waveform display. Flash architecture eliminates pipelined-ADC delay, which matters when reconstructing trigger-aligned pre-trigger samples. The 10-bit resolution captures typical scope vertical resolution, while the 44-QFP package supports commercial 4-layer PCB stackups. Single-channel input matches a standard scope probe-interface path after passive attenuation. Decouple AVDD and DVDD with 0.1 uF and 10 uF ceramic capacitors located adjacent to supply pins; on the clock input, drive CLK with a low-jitter CMOS oscillator to preserve ENOB and prevent SNR degradation.
Recommended
IF-Sampling Communications Receiver
The IDTADC1006S055H-C1 suits narrowband IF-sampling receivers where 55 MSPS supports digitisation of IF bands up to ~25 MHz under Nyquist. Flash architecture's single-cycle latency simplifies the demodulator timing path, while the 10-bit resolution provides sufficient dynamic range for typical IF signals with AGC. Parallel CMOS outputs feed directly into FPGA or ASIC digital down-converters. The 5V analog/digital supplies match conventional receiver IF chain rails, simplifying power tree design. Filter the analog input with a passive anti-alias filter before the ADC, and route the CLK trace as a 50-ohm controlled-impedance line with short length to preserve timing margins.
Recommended
Radar Signal Processing Digitiser
The IDTADC1006S055H-C1 is well placed in radar IF digitiser stages because its 55 MSPS flash conversion provides deterministic single-cycle latency, essential for matched-filter pulse compression. Radar systems depend on precise I/Q timing alignment across channels, and flash ADC's lack of pipeline delay simplifies alignment calibration. The 10-bit resolution is typical for legacy radar receiver designs where SNR is dominated by front-end LNA noise. The 44-QFP package supports MIL-spec conformal coating for defense applications. Use matched-length differential CLK traces, separate analog and digital grounds joined at a single point, and add a 1k series resistor on digital outputs to damp transmission-line ringing into the FPGA.
Recommended
Medical Imaging Front-End
The IDTADC1006S055H-C1 serves medical imaging front-ends like ultrasound beamformer sub-arrays where 55 MSPS and single-cycle latency preserve phase coherence across transducer channels. Flash conversion ensures deterministic sample-to-output delay critical for beam-steering accuracy. The 10-bit resolution supports typical B-mode imaging dynamic range, while the 5V supply rails ease integration with ultrasound pulser receiver ASICs. Use a low-noise LDO on AVDD (e.g., 0.1 uF + 10 uF ceramic decoupling) and a separate LDO on DVDD to prevent digital noise coupling into the analog front-end. Place the reference bypass capacitor directly on the REF pin to reduce DNL errors.
Recommended
Industrial Test & Measurement
The IDTADC1006S055H-C1 fits industrial ATE and benchtop instrumentation digitiser channels where 55 MSPS captures repetitive signals without aliasing. Flash architecture's single-cycle latency allows the digitiser output to feed directly into a comparator for trigger-decision logic, avoiding pipeline delay. The 44-QFP QFP package supports ruggedised multi-board stacks common in rack-mount instruments. The 5V analog/digital supplies match legacy instrumentation rails, easing integration with existing analog front-ends. Drive the ADC input through a transformer or differential driver for ground isolation, use a dedicated reference voltage IC to improve DNL, and provide a calibration register path to correct gain/offset drift over temperature.
Recommended
Video & Imaging Digitiser
The IDTADC1006S055H-C1 fits video bandwidth digitiser cards in broadcast and surveillance equipment, where 55 MSPS oversamples NTSC/PAL component video at 4x oversampling, simplifying anti-alias filtering. Flash latency avoids pixel-by-pixel pipeline artefacts seen with pipelined ADCs in chroma demodulation paths. The 10-bit resolution preserves studio-broadcast dynamic range, while the 44-QFP commercial footprint supports standard video card manufacturing. Use a clamp circuit at the input to protect against hot-plug ESD events, drive CLK with a recovered or local 27 MHz reference, and add an LVDS-to-CMOS converter if downstream logic operates at LVDS levels.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1006S055H-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IDTADC1006S070H-C1 | IDTADC1006S040H-C1 | ADS5102IPFBR | ADS5220PFBRG4 |
|---|---|---|---|---|---|
| Package | 44-QFP (10x10) | 44-QFP (10x10) - same | 44-QFP (10x10) - same | 44-QFP - same footprint | QFP footprint - same family |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Texas Instruments | Texas Instruments |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 12 bit |
| Number of Inputs | 1 (single-channel) | 1 | 1 | 1 | 1 |
Key Differentiators
- Flash architecture with single-cycle latency (vs Modern pipelined ADC family)
- Same family higher-speed variant available (vs IDTADC1006S040H-C1)
- Wide distributor availability despite obsolete status (vs IDTADC1006S070H-C1)
Design Notes
Decouple AVDD and DVDD separately with 0.1 uF plus 10 uF ceramic capacitors placed within 5 mm of the supply pins. Keep analog and digital ground returns separated and joined only at a single point under the IC to avoid digital switching noise coupling into the analog signal path. Route the CLK signal as a 50 ohm controlled-impedance trace, length-matched to ensure timing margin between the same-family variants.
Do not assume all 44-QFP 10-bit ADCs share the same pinout: Renesas IDTADC1006S series and TI ADS5102IPFBR have different pin maps despite sharing the 44-QFP package. Always verify every supply, ground, input, CLK, and output pin against the datasheet before designing a PCB. Manufacturer-supplied IBIS models and pin-compatibility matrices should be requested before substitution.
Estimate: for 55 MSPS CMOS output edges (~3 ns rise time), a 2 cm output trace to a 4 pF downstream load produces ~6 mV of capacitive kick on AVDD via ground-bounce; a 100 ohm series damping resistor per output reduces this by ~80%. Place damping resistors within 5 mm of the ADC outputs. When driving an FPGA, use a series damping resistor and a 100 ohm differential termination on each CMOS pair if noise coupling is observed during layout sweeps.
Compliance Information
Compliance flags not present in verified web data. The part is marked obsolete; for new designs requiring RoHS compliance, consult Renesas for a current-generation replacement.
