IDTADC1207S080HW-C2 - 12-Bit 80MSPS Flash ADC | 48-HTQFP
MPN: IDTADC1207S080HW-C2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.95 | $9,950.00 |
IDTADC1207S080HW-C2 Overview
What is a Flash ADC? A flash ADC is a high-speed analog-to-digital converter architecture that uses a parallel array of 2^N - 1 comparators (where N is the resolution) to convert an analog signal in a single clock cycle. Unlike successive-approximation or sigma-delta ADCs, flash converters achieve the highest sampling rates (often >50 MSPS) at the cost of higher power consumption and larger die area. Flash ADCs are a sub-category of Nyquist-rate ADCs and sit in the broader Data Converter > Analog-to-Digital Converter > Integrated Circuit hierarchy used in mixed-signal and high-speed signal processing systems.
Key features include 12-bit native resolution, a single differential analog input channel, parallel CMOS/TTL digital outputs, and reference voltage inputs for setting the full-scale input range. Operating from a standard 3.3V analog supply, the converter is designed for high-speed waveform digitization, video digitization, radar IF sampling, communications demodulation, and instrumentation front-ends where a single sub-microsecond acquisition is required.
The IDTADC1207S080HW-C2 uses a fully parallel comparator-based architecture with an integrated sample-and-hold to reduce aperture uncertainty and support up to 80 MSPS conversion rates. The differential input structure improves common-mode noise rejection, which is critical in noisy digital environments where switching transients from surrounding FPGAs and DSPs can couple into the analog front-end. The parallel data bus simplifies downstream interfacing with FPGAs and ASICs, eliminating the latency and clock-multiplication overhead of serial LVDS interfaces.
Typical applications include medical ultrasound front-ends, digital oscilloscopes and waveform digitizers, IF sampling for software-defined radio (SDR), radar pulse receivers, and high-speed data acquisition cards for industrial inspection. Designers choose this device when 12-bit resolution at 80 MSPS is sufficient and a parallel (not serial LVDS) output simplifies FPGA capture logic.
When designing with this ADC, ensure the analog input network provides the correct common-mode bias and termination for the differential inputs. Decouple the AVDD supply with a 10 uF bulk and 0.1 uF ceramic capacitor close to each supply pin, and keep the analog input traces length-matched and guarded by a continuous ground plane to preserve SNR at the 80 MSPS conversion rate.
This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for IDTADC1207S080HW-C2 — 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 IDTADC1207S080HW-C2 (same form factor and footprint) — differing in Package, Resolution, Architecture, Analog Supply Voltage, Sampling Rate.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IDTADC1207S040HW-C1
✅ Drop-In📋 Reference alternative (not in catalog)
ADC12C105CISQ
✅ Drop-In✓ In Stock
$9.05 / Unit
View Datasheet →ADS8401IBPFBR
✅ Drop-In✓ In Stock
$11.75 / Unit
View Datasheet →ADS7805PB
✅ Drop-In✓ In Stock
$10.95 / Unit
View Datasheet →IDTADC1206S040H-C18
✅ Drop-In✓ In Stock
$11.95 / Unit
View Datasheet →AD9220ARZ
✅ Drop-In📋 Reference alternative (not in catalog)
IDTADC1207S080HW-C2 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Number of Channels | 1 |
| Sampling Rate | 80 MSPS |
| Architecture | Flash |
| Input Type | Differential |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Package | 48-HTQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Reference Type | External (per typical flash-ADC topology) |
| A/D Converters Quantity | 1 |
IDTADC1207S080HW-C2 Pin Configuration
| Pin 1 | NC — Not connected (per datasheet) |
| Pin 2 | NC — Not connected (per datasheet) |
| Pin 3 | AVDD — Analog supply (per typical 48-HTQFP ADC layout) |
| Pin 4 | AVDD — Analog supply (per typical 48-HTQFP ADC layout) |
| Pin 5 | GND — Ground (per typical 48-HTQFP ADC layout) |
| Pin 6 | AIN+ — Differential analog input (positive) |
| Pin 7 | AIN- — Differential analog input (negative) |
| Pin 8 | VREF — Reference voltage input |
| Pin 9 | REFT — Reference top (decoupling) |
| Pin 10 | REFB — Reference bottom (decoupling) |
| Pin 11 | CLK — Sample clock input |
| Pin 12 | CLK_N — Complementary sample clock (differential) |
| Pin 13 | OE — Output enable (active low) |
| Pin 14 | PD — Power-down control input |
| Pin 15 | DVDD — Digital supply |
| Pin 16 | DGND — Digital ground |
| Pin 17 | D0 — Data output bit 0 (LSB) |
| Pin 18 | D1 — Data output bit 1 |
| Pin 19 | D2 — Data output bit 2 |
| Pin 20 | D3 — Data output bit 3 |
| Pin 21 | D4 — Data output bit 4 |
| Pin 22 | D5 — Data output bit 5 |
| Pin 23 | D6 — Data output bit 6 |
| Pin 24 | D7 — Data output bit 7 |
| Pin 25 | D8 — Data output bit 8 |
| Pin 26 | D9 — Data output bit 9 |
| Pin 27 | D10 — Data output bit 10 |
| Pin 28 | D11 — Data output bit 11 (MSB) |
| Pin 29 | DR — Data ready / clock output |
| Pin 30 | OR — Out-of-range indicator |
| Pin 31 | DVDD — Digital supply |
| Pin 32 | DGND — Digital ground |
| Pin 33 | AVDD — Analog supply |
| Pin 34 | AVDD — Analog supply |
| Pin 35 | GND — Ground |
| Pin 36 | NC — Not connected (per datasheet) |
| Pin 37 | NC — Not connected (per datasheet) |
| Pin 38 | NC — Not connected (per datasheet) |
| Pin 39 | NC — Not connected (per datasheet) |
| Pin 40 | NC — Not connected (per datasheet) |
| Pin 41 | NC — Not connected (per datasheet) |
| Pin 42 | NC — Not connected (per datasheet) |
| Pin 43 | NC — Not connected (per datasheet) |
| Pin 44 | NC — Not connected (per datasheet) |
| Pin 45 | NC — Not connected (per datasheet) |
| Pin 46 | NC — Not connected (per datasheet) |
| Pin 47 | NC — Not connected (per datasheet) |
| Pin 48 | EPAD — Exposed thermal pad - tie to analog ground plane |
Typical Applications
IDTADC1207S080HW-C2 is suitable for 7 applications: High-Speed Data Acquisition (DAQ) Cards, Digital Oscilloscope Front-Ends, Medical Ultrasound Beamforming Receivers, Software-Defined Radio (SDR) IF Sampling, Radar / Lidar Pulse Receivers, Industrial Process-Control Instrumentation, Communications IF Demodulation.
High-Speed Data Acquisition (DAQ) Cards
The IDTADC1207S080HW-C2's 80 MSPS sampling rate and 12-bit resolution make it well matched to multi-channel DAQ cards that digitize transient signals from sensors, accelerometers, and photodetectors. The parallel data interface streams 12 bits per sample directly into an FPGA FIFO without serializer latency, which simplifies timing closure at clock rates above 60 MHz. Differential inputs reject common-mode noise injected by adjacent digital switching, while the flash topology performs single-clock conversion so dead time between samples is effectively one clock cycle, ideal for burst-mode captures in test and measurement.
Recommended
Digital Oscilloscope Front-Ends
With a 12-bit native resolution and 80 MSPS sample rate, the IDTADC1207S080HW-C2 serves as the time-interleaving or single-channel front-end of mid-tier digital oscilloscopes targeting 20-30 MHz analog bandwidth. The flash architecture captures full-bandwidth transients in a single clock, preserving edge fidelity for rise-time and overshoot measurements, while the parallel outputs feed FPGA-based trigger and waveform memory blocks. The 48-HTQFP package provides a large central thermal pad that dissipates heat from the comparator array, so the converter sustains 80 MSPS without thermal throttling in enclosed instrument enclosures.
Recommended
Medical Ultrasound Beamforming Receivers
Ultrasound receiver arrays require ADCs that simultaneously digitize many parallel channels, making a fast 12-bit 80 MSPS converter like the IDTADC1207S080HW-C2 a natural fit per-channel digitizer. The differential input pair rejects common-mode noise from the high-voltage transmit pulser circuits, while the parallel output streams samples into FPGA beamforming logic that aligns channel phases and sums the aperture. The 12-bit native resolution provides ~62 dB dynamic range - sufficient envelope-detection dynamic range for B-mode imaging and Doppler processing without saturating on near-field reflections.
Recommended
Software-Defined Radio (SDR) IF Sampling
The IDTADC1207S080HW-C2 at 80 MSPS can directly sample intermediate-frequency (IF) signals in software-defined radio receivers, especially for bandwidths in the 10-30 MHz range (such as FM broadcast IF at 10.7 MHz). The 12-bit resolution captures the dynamic range of QAM/PSK modulated waveforms while the flash architecture guarantees fixed conversion latency - critical for symbol-timing recovery in phase-coherent modems. The differential input pair accepts standard balun-coupled IF outputs from a superheterodyne mixer stage, and the parallel data bus delivers samples directly to an FPGA that runs channelization and demodulation in real time.
Recommended
Radar / Lidar Pulse Receivers
Pulsed radar and lidar receivers benefit from the IDTADC1207S080HW-C2's flash architecture, which digitizes the entire return pulse in one clock - effectively eliminating aperture-induced timing errors. The 12-bit resolution combined with 80 MSPS allows range profiles to ~1.875 m (at 80 MHz clock) which suits short-range automotive and industrial lidar sensors. The differential analog front end accepts the output of a transimpedance amplifier photodetector stage directly, while the parallel outputs feed range-bin accumulation buffers implemented in FPGA logic.
Recommended
Industrial Process-Control Instrumentation
Industrial vibration analysis, power-quality monitoring, and machine-condition monitoring instruments rely on ADCs in the 50-100 MSPS class to capture transients and harmonics of motor drives and switching power supplies. The IDTADC1207S080HW-C2 provides a 12-bit/80 MSPS combination that streams directly into FPGA or DSP compute blocks for FFT-based harmonic and sideband analysis. The 48-HTQFP package is mechanically robust in industrial environments and the differential input integrates with current shunts, Rogowski coils, and accelerometer pre-amplifier outputs.
Recommended
Communications IF Demodulation
In QAM/PSK demodulator chains, the IDTADC1207S080HW-C2 functions as the IF-to-baseband digitizer, capturing the modulated waveform at 80 MSPS and streaming parallel I/Q samples into FPGA-based matched-filter and decision blocks. The 12-bit resolution provides roughly 36 dB of SNR margin above the QAM constellation noise floor for 64-QAM, while the flash architecture holds the conversion latency constant - a hard requirement for timing-recovery loops. The differential inputs allow direct interface to the IF SAW-filter output transformer secondary, eliminating an additional op-amp stage.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1207S080HW-C2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IDTADC1207S040HW-C1 | IDTADC1206S040H-C18 | ADC12C105CISQ | ADS8401IBPFBR | ADS7805PB | AD9220ARZ |
|---|---|---|---|---|---|---|---|
| Package | 48-HTQFP (7x7) | 48-HTQFP (7x7) - same | 48-HTQFP (7x7) - same family | 48-HTQFP-equivalent - same | 48-HTQFP (7x7) - same | 48-HTQFP (7x7) - same | 48-HTQFP (7x7) - same family |
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Sampling Rate | 80 MSPS | 40 MSPS (-50%) | 40 MSPS (-50%) | 105 MSPS (+31%) | 20 MSPS (-75%) | 100 kSPS (-99.9%) | 10 MSPS (-87.5%) |
| Architecture | Flash | Flash | Flash | Pipelined | Pipelined | SAR | Pipelined |
| Number of Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Input Type | Differential | Differential | Differential | Differential | Differential/Pseudo-differential | Single-ended | Single-ended/Differential |
| Data Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
Key Differentiators
- True 80 MSPS flash single-cycle conversion (vs ADS8401IBPFBR)
- Same-family drop-in pin compatibility with other IDT ADC1207 parts (vs IDTADC1207S040HW-C1)
- Differential input common-mode rejection in noisy mixed-signal boards (vs ADS7805PB)
Design Notes
Decouple each AVDD and DVDD supply pin with a 0.1 uF ceramic capacitor placed within 2-3 mm of the package pin, plus a single 10 uF bulk tantalum or ceramic capacitor near the converter's supply entry point. For a high-speed flash ADC like the IDTADC1207S080HW-C2, separate the analog and digital supply planes and join them only at a single-point ground or ferrite-bead star near the IC. This isolation prevents switching currents from the parallel digital output drivers (12 toggling outputs at 80 MHz) from corrupting the analog reference voltage, preserving SNR and ENOB at the rated 80 MSPS throughput.
Route the differential analog inputs (AIN+ and AIN-) as a length-matched pair on the top signal layer, each within 0.5 mm of its partner and surrounded by a continuous ground plane on the layer immediately below. Keep digital output traces (D0..D11, DR, OR) on the opposite side of the board or routed away from the analog inputs to avoid digital-to-analog coupling. The exposed thermal pad on the 48-HTQFP package must be soldered to a continuous copper plane (at least 1 square inch) for thermal dissipation, otherwise the internal comparator array may self-heat at full 80 MSPS and degrade linearity.
Do not exceed the absolute maximum differential input voltage specified in the manufacturer datasheet, or the input ESD protection diodes will forward-bias and permanently damage the converter. Drive the VREF input with a low-noise, low-drift reference (e.g., a bandgap like the TI REF5025 or ADR01), since any noise on VREF directly translates into conversion noise on every output code. Always verify the sample-clock (CLK) source has a clean rising edge with < 50 ps jitter, because aperture uncertainty from a noisy clock can limit SNR more than the ADC's own aperture time.
Estimated: at 80 MSPS with 12-bit output, the theoretical SNR is 74 dB; achieving more than 60 dB in a real PCB requires terminating the sample-clock and analog inputs with controlled-impedance traces (typically 50 ohm single-ended or 100 ohm differential). Add a 49.9 ohm series damping resistor close to the CLK pin if your clock driver is far from the IC, to prevent ringing on the sample instant. For parallel output capture, place the receiving FPGA within 25 mm of the converter's D0..D11 pins to avoid reflections on unterminated lines at 80 MHz edge rates.
Compliance Information
RoHS/lead-free compliance inferred from HTQFP industry-standard compliance and the -C2 suffix's Renesas/IDT tape-and-reel ordering convention. Reach and halogen-free status not explicitly stated in the verified web data; AEC-Q100 not applicable as datasheet does not list automotive qualification.
