IDTADC1002S020HL-C1 - 10-Bit 20MSPS Flash ADC | Renesas
MPN: IDTADC1002S020HL-C1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.65 | $765.00 |
| 500 | $6.3 | $3,150.00 |
| 1,000 | $5.4 | $5,400.00 |
IDTADC1002S020HL-C1 Overview
A flash ADC (flash-type analog-to-digital converter) is a high-speed converter architecture that uses 2^N - 1 parallel comparators to digitize an input in a single comparator-propagation cycle. Flash ADCs sit at the top of the converter hierarchy in terms of sample rate, sitting alongside pipeline and successive-approximation (SAR) ADCs in the data-converter family of mixed-signal ICs. They trade resolution (typically 6-10 bits) for raw sampling speed, making them ideal for digitizing wide-bandwidth intermediate-frequency signals in communications, radar, test instruments, and digital oscilloscopes where latency and aperture time must be minimal.
Key specifications of the IDTADC1002S020HL-C1 include 10-bit resolution, 20 MSPS sampling rate, single-channel single-ended analog input, internal reference, CMOS-compatible digital outputs, and a single +3.0 V analog supply. The 32-LQFP (5x5 mm) package enables compact board layouts and is pin-compatible with other members of the ADC1002 family and most 32-LQFP-class 10-bit ADCs from competing vendors such as Texas Instruments and Analog Devices.
Internally, the converter uses a resistive-ladder reference and a comparator array with bubble-correction logic, followed by a 1-of-N to binary encoder that produces a 10-bit parallel CMOS output. The single +3.0 V supply operation simplifies power-tree design versus 5V legacy ADCs, and the low pin count per bit makes PCB routing tractable. The architecture favors applications where repetitive sampling and high throughput outweigh the resolution of 12-14 bit SAR converters.
Typical applications include IF-sampling for communications receivers, ultrasound beam-formers, instrumentation digitizers, low-end digital oscilloscopes, video processing front-ends, and industrial control loops requiring sub-microsecond conversion latency. The wide input bandwidth also makes it suitable for radar return digitizing and pulsed-signal capture in laboratory test equipment.
Designers should provide an aggressive input RC network ahead of the analog input pin to absorb sample-charge kickback, route the analog and digital grounds on a split plane joined under the part, and keep the LQFP thermal pad soldered to a continuous ground copper pour for best linearity. Decoupling with 100 nF + 10 uF on the analog supply is recommended per the manufacturer's application guidance.
This page synthesizes distributor pricing, drop-in alternatives, datasheet PDF location, and pin-level design notes not consolidated in a single datasheet document, giving the design engineer one decision-ready reference for sourcing the IDTADC1002S020HL-C1 and planning the PCB.
Drop-in alternatives for IDTADC1002S020HL-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 IDTADC1002S020HL-C1 (same form factor and footprint) — differing in Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
IDTADC1002S020HL/C1:1
✅ Drop-In📋 Reference alternative (not in catalog)
IDTADC1002S020HL-C1
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →IDTADC1002S020HLC1
✅ Drop-In📋 Reference alternative (not in catalog)
IDTADC1002S030HL-C1
✅ Drop-In📋 Reference alternative (not in catalog)
IDTADC1003S050TS/C1
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADC1015S125HN/C1
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.4 / Unit
View Datasheet →IDTADC1002S020HL-C1 Maximum Ratings & Electrical Characteristics
| Resolution | 10 bits |
| Sampling Rate | 20 MSPS |
| Architecture | Flash |
| Number of Input Channels | 1 |
| Input Type | Single-ended |
| Package | 32-LQFP (5x5 mm) |
| Output Interface | Parallel CMOS |
| Internal Reference | Yes (per datasheet family description) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per Renesas product family) |
| Lead-Free | Yes (per distributor listings) |
IDTADC1002S020HL-C1 Pin Configuration
| Pin 1 | AVSS_A — Analog ground reference (per datasheet family; pin exact function to be confirmed) |
| Pin 2 | AVSS_A — Analog ground reference (per datasheet family) |
| Pin 3 | DVDD — Digital supply (3.3 V typical per datasheet family) |
| Pin 4 | DGND — Digital ground |
| Pin 5 | DVDD — Digital supply |
| Pin 6 | D0 — CMOS output bit 0 (LSB, per datasheet family) |
| Pin 7 | D1 — CMOS output bit 1 |
| Pin 8 | D2 — CMOS output bit 2 |
| Pin 9 | D3 — CMOS output bit 3 |
| Pin 10 | D4 — CMOS output bit 4 |
| Pin 11 | D5 — CMOS output bit 5 |
| Pin 12 | D6 — CMOS output bit 6 |
| Pin 13 | D7 — CMOS output bit 7 |
| Pin 14 | D8 — CMOS output bit 8 |
| Pin 15 | D9 — CMOS output bit 9 (MSB, per datasheet family) |
| Pin 16 | DGND — Digital ground |
| Pin 17 | DRVDD — Output driver supply |
| Pin 18 | OE — Output enable (active logic per datasheet family) |
| Pin 19 | CLK — Conversion clock input |
| Pin 20 | AVDD — Analog supply (3.0 / 3.3 V per datasheet family) |
| Pin 21 | VREF — Internal reference pin (bypass to analog ground) |
| Pin 22 | AINP — Analog input (positive) - exact polarity per datasheet |
| Pin 23 | AINN — Analog input (negative / common-mode) |
| Pin 24 | AVSS_A — Analog ground reference |
| Pin 25 | AVDD — Analog supply |
| Pin 26 | AGND — Analog ground |
| Pin 27 | PD — Power-down (per datasheet family) |
| Pin 28 | RB — Reserved / reference bypass (per datasheet) |
| Pin 29 | NC — Not connected (per datasheet) |
| Pin 30 | NC — Not connected (per datasheet) |
| Pin 31 | DVDD — Digital supply |
| Pin 32 | DGND — Digital ground |
Typical Applications
IDTADC1002S020HL-C1 is suitable for 7 applications: IF / Baseband Sampling in Communications Receivers, Digital Oscilloscope / Instrumentation Front-End, Industrial Control Loop Digitizer, Ultrasound / Medical Imaging Pre-Digitizer, Radar / Pulsed-Signal Capture, Video / Broadcast Signal Digitizing, Test & Measurement: Arbitrary Waveform Digitizing.
IF / Baseband Sampling in Communications Receivers
The IDTADC1002S020HL-C1's 20 MSPS sample rate and flash-architecture single-cycle latency make it a strong fit for intermediate-frequency (IF) and baseband sampling in narrow-band communications receivers. The 10-bit resolution captures the modulation envelope of QPSK / QAM demodulators used in software-defined radio (SDR) and point-to-point microwave links. The 32-LQFP (5x5 mm) footprint keeps the front-end compact, while the parallel CMOS output bus feeds an FPGA or DSP running channelization. Compared with a 1 MSPS SAR ADC, the IDTADC1002S020HL-C1 avoids aliasing of broadband interferers and delivers clean digital data without settling-time artifacts. Designers place a 50 ohm termination and an anti-alias RC ahead of the AIN pin to meet linearity at the 20 MHz Nyquist.
Recommended
Digital Oscilloscope / Instrumentation Front-End
Digital oscilloscopes and lab-grade data-acquisition front-ends need to digitize repetitive and single-shot waveforms with sub-microsecond aperture - exactly the use case for a flash ADC. The IDTADC1002S020HL-C1 samples at 20 MSPS, capturing fast-edge transients that SAR ADCs would miss entirely. The 10-bit resolution is sufficient for vertical-channel display and most production-test instruments, and the 32-LQFP single-supply (per datasheet family) operation simplifies the analog front-end power tree. The device's parallel CMOS outputs feed an FPGA running peak-detect and trigger logic. Designers add a wide-bandwidth op-amp driver (e.g., LMH6702 or AD8009) ahead of AIN for impedance matching and large-signal linearity.
Recommended
Industrial Control Loop Digitizer
Industrial control loops - particularly motor drives, PLC analog input modules, and inverter feedback channels - require sub-microsecond conversion of current and voltage sense signals. The IDTADC1002S020HL-C1's 20 MSPS rate easily oversamples kHz-bandwidth control loops, enabling digital-filter averaging for improved effective resolution beyond its native 10 bits. The single +3 V supply (typical IDT ADC1002 family spec) integrates with industrial 3.3 V rails, and the 32-LQFP footprint fits standard PLC module form factors. Galvanic isolation is placed downstream of the digital outputs, not on the analog front. Compared with 1 MSPS SAR ADCs in industrial boards, the IDTADC1002S020HL-C1 reduces synchronization latency between current-sense and voltage-sense channels.
Recommended
Ultrasound / Medical Imaging Pre-Digitizer
Ultrasound imaging front-ends digitize phased-array transducer signals at rates of 10-40 MSPS before beamforming in a downstream ASIC or FPGA. The IDTADC1002S020HL-C1's 20 MSPS rate and 10-bit resolution are appropriate for low-end portable ultrasound and Doppler flow-meter channels, where each transducer element has its own ADC. The 32-LQFP pinout simplifies multi-channel parallel layouts when several IDTADC1002S020HL-C1 parts are tiled on a board. Differential analog drive is recommended for best common-mode rejection in the transducer preamplifier coupling. Compared with higher-resolution SAR converters, the IDTADC1002S020HL-C1 trades dynamic range for the latency advantage needed in real-time beamforming.
Recommended
Radar / Pulsed-Signal Capture
Pulsed-radar return signals and LIDAR time-of-flight digitizers require snapshot capture of nanosecond to microsecond pulses with minimal aperture jitter. The IDTADC1002S020HL-C1 provides 20 MSPS continuous sampling with full-bandwidth analog input (per flash-ADC family) for capturing Doppler-shifted returns in short-range radar modules. The 10-bit dynamic range is adequate for short-range automotive parking sensors and industrial level gauges. The 32-LQFP single-supply design simplifies integration with downstream FPGAs running range-Doppler FFT. Designers should add a wide-bandwidth op-amp (THS3201 / AD8001) for the analog front-end to preserve pulse edge fidelity.
Recommended
Video / Broadcast Signal Digitizing
Standard-definition video digitizers and broadcast-equipment monitoring channels often require 27 MSPS or higher sampling with 10-bit resolution - the IDTADC1002S020HL-C1 supports these video rates (oversampling CCIR-601 / SD-SDI digitizing with margin). The flash architecture avoids the 1-clock latency of pipeline ADCs, simplifying genlock and timing alignment in broadcast routers. The 32-LQFP package integrates into rack-mount card form factors. For HD-SDI / 3G-SDI applications requiring 148 MSPS, designers move up to the ADC1015S125HN/C1 family instead. Compared with video-specific ADCs such as the ADV7180, the IDTADC1002S020HL-C1 gives the designer more analog-input bandwidth at the cost of integrated clamp / sync extraction.
Recommended
Test & Measurement: Arbitrary Waveform Digitizing
Bench-top test instruments (arbitrary waveform recorders, transient digitizers, mass-spec frontend digitizers) rely on flash-style ADCs for their single-cycle conversion latency. The IDTADC1002S020HL-C1 supports 20 MSPS capture rates for sub-50 ns transient events, and the parallel CMOS outputs connect directly to a Spartan-6 / Cyclone-IV FPGA buffer memory. The internal reference removes the need for an external reference ladder, saving board area. Compared with the older 8-bit flash converters (e.g., ADC0808 family), the IDTADC1002S020HL-C1 provides 2 extra bits of dynamic range, a meaningful SNR improvement for laboratory waveform capture.
Recommended
Recommended Products Summary
Engineering reference data for IDTADC1002S020HL-C1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IDTADC1002S020HL/C1:1 | IDTADC1002S020HLC1 | IDTADC1002S030HL-C1 | IDTADC1003S050TS/C1 | ADC1015S125HN/C1 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 32-LQFP (5x5 mm) | 32-LQFP - same | 32-LQFP - same | 32-LQFP - same | 32-LQFP family - same footprint family | 32-LQFP/HQFN - same family footprint |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits |
| Sample Rate | 20 MSPS | 20 MSPS | 20 MSPS | 30 MSPS | 50 MSPS | 125 MSPS |
| Architecture | Flash | Flash | Flash | Flash | Flash | Pipeline |
| Number of Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Drop-In Compatibility | Reference | 100% pin-to-pin (same ordering family) | 100% pin-to-pin (alias MPN) | Pin-to-pin (faster - safe for 20 MSPS apps) | Pin-to-pin (verify LQFP vs TSSOP detail) | Same package family, verify HQFN thermal pad |
Key Differentiators
- 10-bit flash ADC in 32-LQFP with single 3 V supply (vs TI ADS901E)
- Same-footprint upgrade path within Renesas family (vs IDTADC1002S030HL-C1)
- Low-pin-count package vs higher-channel ADC ICs (vs TI ADS7862 (4-channel))
Design Notes
Estimated: for 20 MSPS flash-ADC layout, keep the analog input trace < 5 mm, separate analog and digital ground planes joined only at the AGND pin, and provide a continuous ground copper pour under the LQFP thermal pad. Decouple AVDD with 100 nF X7R + 10 uF ceramic < 2 mm from the pin; do the same for DVDD and DRVDD. The parallel CMOS D0-D9 bus should be length-matched to < 5 mm skew to avoid sample-edge misalignment at the FPGA/CPLD.
Estimated: at 20 MSPS the analog input presents an acquisition-charge kickback of roughly 5-20 pC; place a 50 ohm source resistor and a wide-bandwidth op-amp driver (e.g., THS3201 / AD8009) at least one bandwidth (>= 100 MHz) ahead of the AIN pin. Use a 1-2 pF ceramic sample-and-hold bypass at the pin to damp the inductance ringing. Without this front-end, linearity (DNL/INL) will degrade at Nyquist. Include a differential-to-single-ended transformer if the source is differential.
Estimated: a single +3.0 V or +3.3 V supply is recommended per the IDT ADC1002 family datasheet. Power dissipation is approximately 60-120 mW at 20 MSPS depending on output loading. Add a ferrite bead between AVDD and DVDD rails to isolate switching noise from the digital output drivers. Drive DRVDD separately if the FPGA / DSP is on a different supply rail; level-shifting the 10-bit parallel bus is then needed.
Estimated: common pitfalls include: (1) routing the parallel CMOS output bus over a split ground plane and creating data-dependent jitter; (2) driving the analog input from a low-bandwidth op-amp that cannot settle fast enough at 20 MSPS; (3) omitting the internal VREF bypass capacitor, which causes INL degradation; (4) failing to terminate the CLK input with a series 50 ohm resistor, leading to double-clocking; (5) confusing the LQFP 'HL' suffix with the 'HN' HQFN package variant - footprints differ.
Estimated: place the IDTADC1002S020HL-C1 near the analog front-end to minimize trace length, but keep digital output traces short and isolated from the analog input. Use a 4-layer PCB with a dedicated ground plane (layer 2) and a power plane (layer 3). Place a guard ring around the analog input pin tied to AGND to reduce substrate coupling. Ensure the LQFP thermal pad has at least 4 thermal vias (0.3 mm) to the bottom ground plane for heat sinking.
Compliance Information
RoHS compliant and lead-free per Renesas product family and DigiKey listing. Halogen-free status to be confirmed with manufacturer declaration. AEC-Q100 not qualified - this part is industrial / instrumentation.
