IDTADC0801S040TS-C18 - 8-bit 40MSPS ADC, 20-SSOP | Renesas
MPN: IDTADC0801S040TS-C18 ✓ Hoạt độngIDTADC0801S040TS-C18 Tóm tắt
An ADC (Analog-to-Digital Converter) is a data-acquisition integrated circuit that samples continuous analog input voltages and converts them into discrete digital codes, enabling microcontrollers, DSPs, or FPGAs to process real-world sensor signals. Flash ADCs sit at the low-resolution/high-speed end of the converter taxonomy (flash -> successive-approximation -> pipeline -> sigma-delta), trading bit-depth for the shortest possible latency, which is why 8-bit flash parts remain popular in video, IF-sampling, and oversampling receiver front-ends.
Key features include 8-bit resolution, 40 MSPS maximum sampling rate, single-channel analog input, ultra-low-power operation per the datasheet description, parallel CMOS-compatible output interface, and an internal reference structure that simplifies external BOM. The 20-SSOP package offers a compact footprint for space-constrained PCBs while still providing moderate thermal performance for industrial signal chains.
The device uses a flash-style comparator array with proprietary IDT/Renesas architecture, allowing direct digitisation of intermediate-frequency (IF) or baseband signals without complex front-end conditioning. Designers benefit from single-clock-cycle conversion latency, simplifying digital down-streaming and digital-AGC design in software-defined radio and instrumentation.
Typical applications include video digitisation, ultrasound front-end signal chains, digital oscilloscope input stages, IF-sampling in communications receivers, and low-resolution sensor digitisation in industrial automation. Designers should follow the Renesas datasheet for input drive network, reference decoupling, and clock-jitter budgeting; the datasheet states the converter's specified ENOB and SNR figures depend on proper analogue input layout.
When designing with this device, prioritise a low-jitter clock source and short, impedance-controlled analogue input traces to preserve SNR. The integrated reference network reduces external component count but designers must follow datasheet-recommended decoupling on REFCAP and supply pins to achieve published distortion specs.
This page synthesises distributor pricing, drop-in alternatives sourced from the Renesas portfolio, and practical design notes that go beyond the raw datasheet, helping engineers evaluate IDTADC0801S040TS-C18 against modern alternatives for both new designs and legacy board refreshes.
Bộ thay thế dễ dàng lắp đặt cho IDTADC0801S040TS-C18 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với IDTADC0801S040TS-C18 (cùng hình factor và footprint) — khác nhau ở Package, Resolution, Input Type, Architecture, Operating Temperature Range.
IDTADC0801S040TS-C1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IDTADC0801S040TS/C1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC0801S040TS/C1:1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC0804S040TS/C1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC1003S050TS/C1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC0808S125HW-C18
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →IDTADC0801S040TS-C18 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 8 bit |
| Number of Channels | 1 |
| Sampling Rate (Max) | 40 MSPS |
| Architecture | Flash |
| Input Type | Single-ended |
| Data Interface | Parallel CMOS |
| Power Consumption | Ultra-low power (per datasheet description) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (commercial, -C18 grade) |
| Hộp | 20-SSOP (4.40 mm width, exposed pad) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free Finish | Yes (suffix -C18) |
| Conversion Latency | 1 clock cycle (flash topology) |
Cấu hình chân IDTADC0801S040TS-C18
| Chân 1 | VD — Digital supply voltage |
| Chân 2 | GND — Ground |
| Chân 3 | VA — Analog supply voltage |
| Chân 4 | AIN — Analog input |
| Chân 5 | REFT — Top reference |
| Chân 6 | REFB — Bottom reference |
| Chân 7 | REFCAP — Reference decoupling capacitor |
| Chân 8 | CLK — Sampling clock input |
| Chân 9 | OE — Output enable (active low) |
| Chân 10 | D7 — Data output bit 7 (MSB) |
| Chân 11 | D6 — Data output bit 6 |
| Chân 12 | D5 — Data output bit 5 |
| Chân 13 | D4 — Data output bit 4 |
| Chân 14 | D3 — Data output bit 3 |
| Chân 15 | D2 — Data output bit 2 |
| Chân 16 | D1 — Data output bit 1 |
| Chân 17 | D0 — Data output bit 0 (LSB) |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | NC — Not connected (per datasheet) |
| Chân 20 | GND — Ground (or thermal pad) |
Ứng dụng tiêu biểu
IDTADC0801S040TS-C18 phù hợp cho 6 Áp dụngs: Video Digitisation Front-End, Software-Defined Radio IF Sampling, Digital Oscilloscope Input Stage, Ultrasound Signal Acquisition, Industrial Sensor Digitisation, Communications IF Digitiser.
Video Digitisation Front-End
The IDTADC0801S040TS-C18 is well-suited to video digitisation where 8-bit resolution and 40 MSPS sampling comfortably exceed the Nyquist requirement for standard-definition video (~27 MSPS for 4:2:2 8-bit). Its flash topology ensures single-cycle conversion latency, avoiding the pipeline delay that would otherwise disrupt frame-buffer synchronisation. The 20-SSOP package keeps the digitiser compact in camera modules and video capture cards. Designers typically feed the analogue input through an AC-coupled 75 ohm driver and use the parallel CMOS outputs to drive an FPGA video pipeline.
Được đề xuất
Software-Defined Radio IF Sampling
In software-defined radio (SDR) receiver chains, the IDTADC0801S040TS-C18's 40 MSPS rate and 8-bit resolution suit narrowband IF-sampling stages where 48 dB SNR is acceptable. The flash architecture's single-cycle latency simplifies digital down-conversion in the FPGA fabric, eliminating the need for latency-compensation FIFOs. Low-jitter clock generation (typically from a TCXO through a low-noise buffer) is essential; the datasheet specifies jitter sensitivity that designers must respect. The exposed pad on the 20-SSOP aids thermal dissipation for continuous-sampling use cases.
Được đề xuất
Digital Oscilloscope Input Stage
The IDTADC0801S040TS-C18 suits low-bandwidth digital oscilloscope and data-logger front-ends where 40 MSPS real-time sampling enables ~10 MHz usable bandwidth (rule of thumb: Fs/4 with 8-bit flash). Its single-cycle conversion latency supports accurate single-shot transient capture without pipeline delay artefacts. The 20-SSOP package integrates easily into mixed-signal acquisition PCBs alongside op-amp front-ends and trigger circuits. Designers should budget clock jitter and add an input anti-alias filter; the datasheet specifies analog input bandwidth and recommended drive network.
Được đề xuất
Ultrasound Signal Acquisition
The IDTADC0801S040TS-C18 fits ultrasound receiver digitisation stages where 8-bit resolution and 40 MSPS support moderate-frequency transducer arrays. Its flash topology preserves real-time pulse-echo timing, which is critical for accurate time-of-flight measurement in medical imaging. The exposed-pad 20-SSOP allows continuous sampling at elevated ambient temperatures in compact probe heads. Pairing with a low-noise LNA and time-gain compensation amplifier upstream yields a complete ultrasound receive chain in medical and industrial NDT systems.
Được đề xuất
Industrial Sensor Digitisation
The IDTADC0801S040TS-C18 is appropriate for industrial sensor digitisation in PLC analog input modules, vibration monitors, and motor control feedback paths where 8-bit resolution is sufficient and 40 MSPS oversampling enables averaging for SNR improvement. Its commercial temperature grade (-40C to +85C) covers most factory-floor environments. The 20-SSOP exposed-pad package simplifies PCB thermal design in sealed enclosures. Designers often use the IDTADC0801S040TS-C18 as the ADC inside multi-channel sigma-delta-like averaged systems for cost-sensitive industrial designs.
Được đề xuất
Communications IF Digitiser
The IDTADC0801S040TS-C18 suits intermediate-frequency (IF) digitisation in narrowband communications receivers, pagers, and two-way radio base stations where 8-bit resolution is acceptable for demodulating FSK/GFSK/ASK signals at baseband. The 40 MSPS sample rate covers IF frequencies up to ~20 MHz with appropriate anti-alias filtering. Its parallel CMOS outputs interface directly to FPGAs or DSPs implementing digital demodulation, and the exposed-pad 20-SSOP aids thermal performance in continuously-powered base-station equipment. The flash architecture avoids pipeline delay that would impair symbol timing recovery.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho IDTADC0801S040TS-C18 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | IDTADC0801S040TS-C1 | IDTADC0801S040TS/C1 | ADC0801S040TS/C1 | ADC0804S040TS/C1 | ADC1003S050TS/C1 | ADC0808S125HW-C18 |
|---|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Resolution | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit | 10 bit | 8 bit |
| Sampling Rate (Max) | 40 MSPS | 40 MSPS | 40 MSPS | 40 MSPS | 40 MSPS | 50 MSPS | 125 MSPS |
| Architecture | Flash | Flash | Flash | Flash | Flash | Flash | Flash |
| Data Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS | Parallel CMOS |
| Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| RoHS Compliance | Yes (-C18 suffix) | Yes (-C1 suffix) | Yes | Yes | Yes | Yes | Yes (-C18 suffix) |
| Lifecycle Status | Active (Renesas portfolio) | Active | Active | Active | Active | Active | Active |
Bảo phân biệt quan trọng
- Renesas (formerly IDT) portfolio with active lifecycle status (vsGeneric 8-bit flash ADC from smaller vendors)
- Single-cycle flash latency for real-time signal chains (vsPipeline ADCs in same speed class)
- Ultra-low power operation per datasheet description (vsHigher-power competitive 8-bit ADCs)
- 20-SSOP exposed-pad package with RoHS lead-free finish (vsLarger TSSOP or SOIC packages)
Ghi chú thiết kế
Estimated: based on datasheet topology, the analog input (AIN) trace should be kept short and impedance-controlled (typically 50 ohm) to preserve SNR at 40 MSPS. Place the REFCAP decoupling capacitor as close as possible to the REFCAP pin (within 2 mm) using a low-ESR ceramic. The exposed thermal pad on the 20-SSOP MUST be soldered to a ground pour of at least 50 mm^2 to maintain the rated thermal resistance and prevent latch-up under high ambient temperatures.
Use separate analog (VA) and digital (VD) supply rails, decoupled with ferrite beads or pi-filters to prevent digital switching noise from coupling into the analog front-end. Place 100 nF ceramic decoupling capacitors within 3 mm of each supply pin and add a 10 uF bulk capacitor near the IC. Per datasheet guidance, the analog supply should be regulated within +/-5% to maintain the specified ENOB and linearity. Power-on sequencing is not strictly required but simultaneous ramp-up is recommended.
Clock jitter is the most common reason IDTADC0801S040TS-C18 prototypes fail to meet datasheet SNR. Estimated: budget clock jitter below 5 ps RMS at 40 MSPS to preserve 8-bit SNR (~48 dB). Use a low-jitter TCXO or clock buffer; avoid routing the clock trace near digital output lines. The OE (output enable) pin must be driven low for normal operation - leaving it floating can put outputs in high-impedance or random state, which is a frequent bring-up issue.
Estimated: based on the 20-SSOP exposed-pad package, the junction-to-ambient thermal resistance is approximately 60 C/W on a standard 4-layer 1 oz PCB with the exposed pad soldered to a 1 square inch copper pour. At maximum continuous sampling and worst-case ambient (85 C), junction temperature stays well below 125 C, so no heatsink is required. However, in sealed enclosures with no airflow, derate ambient by 10-15 C or add a small copper pour increase.
Thông tin tuân thủ
RoHS compliant per -C18 suffix designation. Commercial temperature grade per -C18 suffix. AEC-Q100 not applicable - commercial/industrial grade only.
