IDTADC1206S070H-C1 - 12-Bit 70MSPS Flash ADC | Renesas
MPN: IDTADC1206S070H-C1 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.5 | $12,250.00 |
| 1,000 | $21.3 | $21,300.00 |
IDTADC1206S070H-C1 Overview
A flash ADC is a parallel-architecture data converter that uses 2^N-1 comparators to digitize an analog input in a single clock cycle, producing the fastest conversion latency of any ADC topology. The 12-bit flash architecture places this part in a high-speed niche between pipelined ADCs (typically 14-16 bits at lower sample rates) and lower-resolution high-speed flash parts (8-10 bits), targeting IF sampling, baseband quadrature demodulation, and digital oscilloscope channels.
Key features include 12-bit resolution, 70 MSPS sampling rate, 44-pin PQFP surface-mount package, single +5 V analog supply, and single +5 V digital supply for I/O compatibility with 5 V CMOS logic. The flash architecture delivers single-cycle latency, making the part suitable for closed-loop control and real-time signal processing where pipeline delay would be unacceptable.
The device integrates the reference, track-and-hold, and parallel digital output drivers on-chip, eliminating the need for external sample-and-hold circuitry. Parallel CMOS outputs at 70 MSPS make the part straightforward to interface to FPGAs or ASICs without requiring high-speed serializer-deserializer (SerDes) logic, simplifying PCB layout in moderate-channel-count systems.
Typical applications include medical ultrasound beamforming, IF sampling in software-defined radio, CCD/CMOS imaging front-ends, digital oscilloscope input stages, and radar baseband digitizers. The 44-pin PQFP footprint is well-supported by hand-solderable prototyping and high-volume SMT lines alike.
When designing with this part, allocate a solid ground plane under the analog and digital sections to minimize coupling between the parallel output bus (which switches at the clock rate) and the analog input. Keep the analog input trace length matched to the on-chip track-and-hold to preserve aperture accuracy, and decouple each supply pin with a 100 nF ceramic plus a 10 uF bulk capacitor placed within 5 mm of the pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the IDTADC1206S070H-C1 not found in the manufacturer datasheet alone.
Drop-in alternatives for IDTADC1206S070H-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 IDTADC1206S070H-C1 (same form factor and footprint) — differing in Package, Data Interface, Sampling Rate, Input Type, Operating Temperature.
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IDTADC1206S070H-C18
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View Datasheet →IDTADC1206S070H-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Sampling Rate | 70 MSPS |
| Architecture | Flash |
| Number of Channels | 1 |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 5 V |
| Package | 44-PQFP |
| Mounting Type | Surface Mount |
| Data Interface | Parallel CMOS |
| Number of Pins | 44 |
| Converter Type | ADC, Flash Architecture |
IDTADC1206S070H-C1 44-pqfp Pin Configuration Guide
Pin configuration for IDTADC1206S070H-C1 (44-pqfp 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 IDTADC1206S070H-C1.
Refer to the datasheet for full pin configuration.
Typical Applications
IDTADC1206S070H-C1 is suitable for 6 applications: Medical Ultrasound Beamforming, IF Sampling in Software-Defined Radio, Digital Oscilloscope Input Stage, CCD/CMOS Image Sensor Digitization, Radar Baseband Digitization, Industrial Test and Measurement Instrumentation.
Medical Ultrasound Beamforming
The IDTADC1206S070H-C1's 12-bit resolution and 70 MSPS sample rate align well with medical ultrasound receive-channel digitisation, where 5-20 MHz transducer signals require both adequate bandwidth and phase-coherent sampling across arrays. The flash architecture delivers single-cycle latency, preserving the phase relationships needed for accurate beamforming across 32-128 receive channels in a typical cart-based ultrasound system. According to the Renesas product description, the single +5 V analog and digital supplies simplify the power-tree design for portable cart-based systems. Designers should pair the part with a low-jitter clock under 5 ps RMS and a dedicated ground plane to maintain aperture accuracy across the channel array.
Recommended
IF Sampling in Software-Defined Radio
The IDTADC1206S070H-C1 is well suited for IF sampling in software-defined radio (SDR) platforms where 70 MSPS provides 35 MHz Nyquist bandwidth - sufficient for capturing 20-25 MHz intermediate-frequency signals from a down-converting front-end. The flash architecture's single-cycle latency enables real-time demodulation without pipeline delay, which simplifies FPGA signal-processing pipelines. The 12-bit resolution yields approximately 74 dB SNR, adequate for narrowband voice and low-order digital modulation schemes. According to the Renesas product page, the parallel CMOS output bus interfaces directly to FPGAs without requiring serializer-deserializer logic, reducing BOM cost.
Recommended
Digital Oscilloscope Input Stage
The IDTADC1206S070H-C1's 70 MSPS sampling rate supports 35 MHz analog bandwidth in a digital oscilloscope input stage, making it appropriate for entry-level 100 MHz scope designs. The flash architecture's single-cycle latency preserves trigger accuracy, which is critical for capturing glitch and runt events in digital systems. The 12-bit vertical resolution provides 4096 quantization levels, sufficient for general-purpose debugging of analog and digital signals. According to Renesas documentation, the 44-PQFP package is well-suited for the mixed-signal PCB environment of scope mainboards where analog and digital grounds require careful partition.
Recommended
CCD/CMOS Image Sensor Digitization
The IDTADC1206S070H-C1 digitises the analog output of CCD or CMOS image sensors in machine-vision and scientific cameras where 12-bit dynamic range captures subtle intensity variations. The 70 MSPS sample rate accommodates high-pixel-rate sensors up to 4096 pixels per line at standard line-scan rates. Flash architecture eliminates pipeline delay, which preserves pixel-to-pixel timing accuracy for time-of-flight and structured-light depth cameras. According to the Renesas product listing, the single +5 V supply simplifies the camera-head power distribution where space is constrained.
Recommended
Radar Baseband Digitization
The IDTADC1206S070H-C1 is appropriate for the I/Q baseband digitisation stage of short-range automotive and industrial radar systems operating below 35 MHz of complex bandwidth. The 12-bit resolution and 70 MSPS sample rate capture both magnitude and phase information needed for FFT-based range and velocity processing. The single-cycle flash latency preserves target-detection timing in pulsed-radar applications. According to the Renesas product page, the parallel CMOS output simplifies interfacing to radar-processing DSPs and FPGAs without requiring high-speed serial links.
Recommended
Industrial Test and Measurement Instrumentation
The IDTADC1206S070H-C1 fits the input stage of bench-top spectrum analyzers, data loggers, and vibration-analysis instruments where 12-bit resolution and 70 MSPS provide adequate signal fidelity for 20-30 MHz measurement bandwidths. The flash architecture's deterministic single-cycle latency simplifies triggering and event-timestamping in transient-recording applications. According to Renesas documentation, the 44-PQFP package supports both hand-prototyping and high-volume SMT assembly lines for industrial OEM designs. Pairing the ADC with a precision op-amp front-end and anti-alias filter achieves better than 70 dB SFDR in production units.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1206S070H-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IDTADC1206S070H-C18 | IDTADC1206S055H-C1 | ADC1213S125HN-C1 | ADC1210S065HN/C1 | ADC1410S105HN-C1 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 44-PQFP | 44-PQFP - same | 44-PQFP - same | 44-PQFP - same | 44-PQFP - same | 44-PQFP - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 14 bit |
| Sampling Rate | 70 MSPS | 70 MSPS | 55 MSPS (-21%) | 125 MSPS (+79%) | 65 MSPS (-7%) | 105 MSPS (+50%) |
| Analog Supply Voltage | 5 V | 5 V | 5 V | 3.3 V | 3.3 V | 3.3 V |
| Architecture | Flash | Flash | Flash | Flash | Flash | Flash |
| Data Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel LVDS | Parallel CMOS | Parallel LVDS |
| Lifecycle Status | NRND | NRND | NRND | Active | Active | Active |
Key Differentiators
- Same 44-PQFP footprint across the Renesas IDT 12-bit flash ADC family (vs IDTADC1206S055H-C1)
- Higher sample rate in the same package compared to older 10-bit ADCs (vs HI5767/4CBZ-T)
- Single +5 V supply simplifies power-tree design (vs ADC1213S125HN-C1)
Design Notes
Allocate a solid ground plane under the IDTADC1206S070H-C1 and partition it into analog and digital sections joined only beneath the ADC's GND pins. The parallel CMOS output bus switches at the clock rate and will inject high-frequency noise into the analog input if grounds are not properly split. Decouple each AVDD and DVDD pin with a 100 nF ceramic placed within 5 mm of the pin, plus a 10 uF bulk capacitor near the package. Add a ferrite bead between analog and digital 5 V rails to further suppress switching noise coupling.
Estimated: at 70 MSPS, the 12-bit parallel output bus toggles at 70 MHz on the MSB and 35 MHz on average, generating edge rates in the 1-2 ns range. Route the 12 data outputs as a tightly length-matched bus (within 2 mm across all 12 traces) on a single inner PCB layer with a continuous ground plane beneath. Keep clock trace length matched to within 1 mm of the data bus length, and use a clock source with jitter under 5 ps RMS to maintain the 12-bit SNR at full sampling rate. Source-terminate the clock line with a 33-50 ohm resistor to dampen reflections on long traces.
Do not assume the IDTADC1206S070H-C1 has an internal reference - confirm the reference architecture in the datasheet before designing the analog front-end. Also verify the clock input polarity and edge selection (rising-edge or falling-edge sampling) because the part may differ from a competing flash ADC. Finally, ensure the analog input is DC-biased within the common-mode range of the on-chip track-and-hold; an out-of-range input will saturate the comparators and corrupt the digital output. Add an input buffer op-amp with sufficient slew rate to drive the ADC's switched-capacitor input without distortion.
Compliance Information
Compliance information not available in the verified web data. The part was originally released by IDT before its acquisition by Renesas; refer to the Renesas product page for the latest compliance documentation.
