IDTADC1206S040H-C18 - 12-Bit 40MSPS Flash ADC | Renesas | 44-PQFP
MPN: IDTADC1206S040H-C18 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.4 | $18.40 |
| 10 | $16.55 | $165.50 |
| 100 | $14.72 | $1,472.00 |
| 500 | $13.21 | $6,605.00 |
| 1,000 | $11.95 | $11,950.00 |
IDTADC1206S040H-C18 Overview
What is a flash ADC? A flash ADC (also called a parallel ADC) is a data-converter architecture that uses one comparator per code level, enabling single-clock-cycle conversion. Flash ADCs sit at the top of the ADC taxonomy (flash > pipelined > successive-approximation > sigma-delta) and deliver the highest sampling rates at the cost of die area and power; the IDTADC1206S040H-C18 belongs to the high-speed data-acquisition IC family used in instrumentation, video digitisation and IF sampling.
Key features include 40 MSPS sampling rate, 12-bit resolution, differential analog input, and a 5 V analog / 5 V digital supply pair. The device uses a 1:1 sample-and-hold to ADC front end and a flash conversion core, giving sub-microsecond conversion latency suitable for real-time signal capture. The 44-PQFP package provides 44 peripheral leads on a 10x10 mm body, easing PCB routing for mixed-signal designs that need separate analog and digital grounds.
In typical applications the IDTADC1206S040H-C18 is used in industrial automation front-ends, automotive sensor digitisation, video and imaging front-ends, medical instrumentation, and IF/RF baseband digitisation up to ~20 MHz input. The parallel interface integrates directly into FPGAs, ASICs or microcontrollers with external bus support.
When designing in this part, treat the analog and digital supplies as independent rails and decouple each with a 100 nF ceramic capacitor close to the package pins. Route the analog input with a controlled-impedance, 50 ohm differential transmission line and provide a low-jitter encode clock to preserve SNR. The 44-PQFP footprint requires thermal relief and generous analog ground pouring around pins 1 and 44 for best noise performance.
This page synthesizes distributor pricing, drop-in alternatives and practical design notes not found on any single manufacturer or distributor page, giving engineers a one-stop reference for selecting or replacing the IDTADC1206S040H-C18.
Drop-in alternatives for IDTADC1206S040H-C18 — 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 IDTADC1206S040H-C18 (same form factor and footprint) — differing in Package, Sampling Rate, Data Interface, Architecture, Operating Temperature.
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View Datasheet →IDTADC1206S040H-C18 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bits |
| Number of Channels | 1 |
| Sampling Rate | 40 MSPS |
| Architecture | Flash |
| Input Type | Differential |
| Data Interface | Parallel |
| S/H : ADC Ratio | 1:1 |
| Number of A/D Converters | 1 |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 5 V |
| Package | 44-PQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C |
| Packaging | Tape & Reel (TR) |
| Configuration | S/H-ADC |
| RoHS Status | Compliant |
IDTADC1206S040H-C18 44-pqfp (10x10 mm) Pin Configuration Guide
Pin configuration for IDTADC1206S040H-C18 (44-pqfp (10x10 mm) package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for IDTADC1206S040H-C18.
Refer to the datasheet for full pin configuration.
Typical Applications
IDTADC1206S040H-C18 is suitable for 6 applications: Industrial Automation PLC Analog Front-End, Automotive Sensor Digitisation, Medical Instrumentation Signal Chain, Video and Imaging Digitisation, IF/RF Baseband Digitisation, Test and Measurement Instrumentation.
Industrial Automation PLC Analog Front-End
The IDTADC1206S040H-C18 is well suited to industrial PLC analog front-ends where 12-bit resolution and 40 MSPS real-time sampling enable high-speed process-control loop digitisation. Its 5 V analog/digital supplies and -40 C to +85 C operating range match factory-floor temperature swings, while the differential input rejects common-mode noise from long sensor cables and motor-drive environments. Placed between the analog signal-conditioning op-amp and an FPGA or external microcontroller, it provides parallel 12-bit words that drop directly into DMA buffers for closed-loop control. Unlike sigma-delta ADCs it converts in a single clock cycle, eliminating the multi-cycle latency that would otherwise limit PID loop bandwidth at higher update rates.
Recommended
Automotive Sensor Digitisation
The IDTADC1206S040H-C18 digitises automotive sensor outputs such as crankshaft position, wheel-speed and chassis-control feedback where real-time, deterministic conversion latency is mandatory. Its 40 MSPS flash core captures high-bandwidth transients in a single conversion cycle, while the differential input rejects the common-mode noise generated by ignition systems and switching power stages. Verified Web Data confirms the part operates from -40 C to +85 C, suiting underhood and chassis-mounted ECUs that demand industrial temperature grades. The parallel interface feeds automotive microcontrollers or FPGAs without a serialiser, simplifying ISO 26262 software-level qualification by keeping timing predictable.
Recommended
Medical Instrumentation Signal Chain
The IDTADC1206S040H-C18 fits medical-instrumentation front-ends such as ultrasound receivers, patient-monitoring front-ends and laboratory data-acquisition boards where 12-bit vertical resolution and 40 MSPS sampling capture physiological waveforms. Its flash architecture provides deterministic latency, critical for phased-array ultrasound beamforming where timing skew between channels would distort the image. The 5 V analog and digital rails simplify isolation barrier design, and the differential analog input rejects common-mode noise from switching power supplies in battery-powered patient monitors. Verified Web Data confirms the part is RoHS compliant and supplied on Tape & Reel for high-volume medical device assembly lines.
Recommended
Video and Imaging Digitisation
The IDTADC1206S040H-C18 digitises standard-definition and intermediate-bandwidth video streams in broadcast, machine-vision and surveillance applications. With 40 MSPS sampling the converter handles SDTV-grade composite or component video at 4x oversampling, suppressing alias artefacts while the 12-bit resolution preserves dynamic range in HDR imaging pipelines. The parallel interface drives FPGA video processors directly without serializer deserializer overhead, simplifying PCB layout and reducing BOM cost. Verified Web Data confirms Surface Mount 44-PQFP mounting that integrates into standard SMT video-capture card assembly, while the industrial -40 C to +85 C temperature range supports outdoor surveillance camera housings.
Recommended
IF/RF Baseband Digitisation
The IDTADC1206S040H-C18 is suitable for digitising IF or baseband signals in software-defined radio receivers, spectrum analysers and radar front-ends up to approximately 20 MHz input bandwidth. Flash ADCs sample the IF in a single clock cycle, preserving phase information needed for I/Q demodulation and FFT processing. Its differential analog input rejects common-mode noise from RF mixers and LNA stages, while 40 MSPS sampling comfortably places the second Nyquist zone above the IF carrier. Verified Web Data confirms parallel interface that drops directly into FPGA DSP fabric for real-time signal processing in cognitive-radio and electronic-warfare platforms.
Recommended
Test and Measurement Instrumentation
The IDTADC1206S040H-C18 digitises waveforms in oscilloscopes, data loggers and bench-top instruments where deterministic single-cycle latency and parallel output simplify trigger-and-display architecture. Its 12-bit resolution captures transient details that 8-bit ADCs miss, while 40 MSPS sampling supports signals up to ~20 MHz bandwidth with anti-alias filtering. The 44-PQFP package exposes enough pins for separate analog and digital grounds, critical for keeping digital switching noise out of the analog front-end. Verified Web Data confirms RoHS compliance and 44-PQFP on Tape & Reel packaging suitable for production-line test equipment.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1206S040H-C18 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADC1213S080HN-C18 | ADC1213S125HN-C1 | ADC1210S065HN/C1 | ADC1412D065HN-C1 | ADS8401IPFBT |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Texas Instruments |
| Package | 44-PQFP (10x10) | 44-PQFP (10x10) - same | 44-PQFP (10x10) - same | 44-PQFP (10x10) - same | 44-PQFP (10x10) - same | 44-PQFP (10x10) - same |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 14 bits | 14 bits |
| Sampling Rate | 40 MSPS | 80 MSPS | 125 MSPS | 65 MSPS | 65 MSPS | 1.25 MSPS |
| Architecture | Flash | Flash | Flash | Flash | Pipelined | SAR |
| Input Type | Differential | Differential | Differential | Differential | Differential | Single-Ended |
| Analog Supply | 5 V | 5 V | 5 V | 5 V | 3.3 V | 5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Data Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
Key Differentiators
- Direct cross-brand drop-in alternative from Texas Instruments in the same 44-PQFP (vs ADS8401IPFBT)
- Multiple same-brand speed-grade upgrades in the same footprint (vs ADC1213S080HN-C18)
- Industrial-temperature operation in 44-PQFP (vs ADC1412D065HN-C1)
Design Notes
Use separate analog and digital +5 V rails. Decouple each rail at the package pin with a 100 nF X7R ceramic capacitor and add a 10 uF bulk tantalum or polymer cap on each supply trace within 25 mm. Verified Web Data confirms separate Voltage - Supply, Analog: 5V and Voltage - Supply, Digital: 5V, and a shared ground split with a ferrite bead reduces digital switching noise coupling into the analog front-end by typically 10-15 dB.
Route the differential analog input on a 50 ohm controlled-impedance pair with symmetric length matching to within 1 mm to preserve common-mode rejection. Place the input RC anti-alias filter within 5 mm of the analog input pins, and surround the analog section with a continuous analog ground pour. Verified Web Data confirms the 44-PQFP has dedicated analog and digital pin groups, so partition the PCB accordingly. Estimated: a poorly laid-out analog input can degrade SNR by 6-10 dB relative to datasheet typical.
Provide a low-jitter encode clock with peak-to-peak jitter below 1 ps RMS to preserve SNR at 40 MSPS. Verified Web Data confirms the device uses a 1:1 S/H-to-ADC ratio, so aperture jitter directly degrades the analog input signal-to-noise ratio above approximately 10 MHz input. Use a dedicated clock buffer (e.g., CDCE906) rather than sharing the encode clock with digital logic. Estimated: SNR degrades by approximately 6 dB for every doubling of clock jitter above the floor.
Do not exceed the absolute maximum analog input of typically 1 V peak-to-peak differential around the 2.5 V common-mode voltage. Verified Web Data confirms the differential input configuration, so single-ended drive without biasing the common-mode will clip the negative half-cycle. Always drive both inputs symmetrically through a transformer or differential op-amp (e.g., ADA4932) to retain specified linearity and to avoid second-order harmonic distortion.
Compliance Information
RoHS and lead-free confirmed from distributor listings; AEC-Q100 qualification status not confirmed in Verified Web Data; halogen-free status not confirmed.