IDTADC0804S030TS-C18 - 8-bit 30 MSPS ADC, 28-SSOP | Renesas
部品番号: IDTADC0804S030TS-C18 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.18 | $61.80 |
| 100 | $5.52 | $552.00 |
| 500 | $4.93 | $2,465.00 |
| 1,000 | $4.41 | $4,410.00 |
| 3,000 | $3.85 | $11,550.00 |
IDTADC0804S030TS-C18 概要
A flash ADC (sometimes called a parallel ADC) is a class of analog-to-digital converter that uses a bank of 2^(N)-1 comparators to resolve an N-bit sample in a single clock cycle. Flash converters sit at the bottom of the ADC taxonomy (flash ADC -> high-speed ADC -> data converter -> mixed-signal IC -> semiconductor) and trade power and die area for the lowest possible latency of any ADC architecture, which is why they remain dominant for bandwidth-limited video and communications IF applications above 10 MSPS.
Key specifications include 8-bit resolution, 30 MSPS maximum sampling rate, single analog input channel, differential reference voltage architecture (Vref(dif)) with VRT/VRB reference inputs at 2.02V / 2.37V, a -9.7 mA reference current, and an internal R-ladder resistance of 245 ohm with a +456 m ohm/K temperature coefficient. The device targets ultra-low-power operation per the manufacturer's catalog description, and operates from a single supply with CMOS-compatible digital outputs.
The ADC0804S030/040/050 family is built on a bipolar-compatible CMOS flash process and integrates 255 comparators plus encoding logic on-die. The differential reference input lets the full-scale range be scaled to the application, and the SSOP-28 footprint is shared across all three speed grades, simplifying PCB layout reuse when higher sample rates are needed in derivative designs.
Typical applications include digital video broadcast equipment, ultrasound front-end digitizers, CCD imaging pipelines, cable modem return-path digitizers, and radar IF sampling. The 28-SSOP footprint is also useful where board height is constrained but QFPs are unavailable in the bill of materials.
When designing in this part, allocate adequate decoupling on AVDD/DVDD rails and follow the datasheet's reference-driving guidance for the differential VRT/VRB inputs to preserve linearity; 50 ohm controlled impedance is recommended for the analog input trace to preserve ENOB at Nyquist.
This page synthesizes distributor pricing, same-brand pin-compatible 40/50 MSPS variants, drop-in alternative notes, and PCB layout guidance that the bare Renesas datasheet does not present side-by-side.
ドロップイン代替品: IDTADC0804S030TS-C18 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: IDTADC0804S030TS-C18 （同一形状・フットプリント） — 相違点: Package, Resolution, Architecture, Power Dissipation, Input Type.
クイック比較ツール — 並列比較する代替部品を選択:
IDTADC0804S040TS-C18
✅ ドロップイン📋 参考代替品（カタログ未掲載）
IDTADC0804S050TS-C18
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADC1003S030TS/C1
✅ ドロップイン✓ 在庫あり
$4.05 / 個
データシートを見る →ADC1003S050TS/C1
✅ ドロップイン✓ 在庫あり
$7.4 / 個
データシートを見る →ADC0808S125HW-C18
✅ ドロップイン✓ 在庫あり
$11.65 / 個
データシートを見る →ADS930E
✅ ドロップイン📋 参考代替品（カタログ未掲載）
IDTADC0804S030TS-C18 最大定格＆電気的特性
| 分解能 | 8 bit |
| Sampling Rate (max) | 30 MSPS |
| Family Speed Grades | 30 / 40 / 50 MSPS (pin-compatible) |
| Number of Channels | 1 |
| Architecture | Flash (parallel) |
| Reference Topology | Differential (VRT, VRB) |
| VRT Reference Voltage | 2.02 V |
| VRB Reference Voltage | 2.37 V |
| Reference Current (Iref) | -9.7 mA |
| R-ladder Resistance (Rlad) | 245 ohm |
| R-ladder Temp Coefficient (TC Rlad) | +456 m ohm/K |
| パッケージ | 28-SSOP (5.30 mm body width) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Power Dissipation | Ultra-low power (per datasheet) |
| Manufacturer | IDT (now Renesas Electronics) |
IDTADC0804S030TS-C18 ピン構成
| ピン 1 | AIN — Analog input |
| ピン 2 | VRT — Top reference voltage |
| ピン 3 | VRB — Bottom reference voltage |
| ピン 4 | AGND — Analog ground |
| ピン 5 | AVDD — Analog supply |
| ピン 6 | DVDD — Digital supply |
| ピン 7 | DGND — Digital ground |
| ピン 8 | CLK — Sampling clock input |
| ピン 9 | D7 — Digital output bit 7 (MSB) |
| ピン 10 | D6 — Digital output bit 6 |
| ピン 11 | D5 — Digital output bit 5 |
| ピン 12 | D4 — Digital output bit 4 |
| ピン 13 | D3 — Digital output bit 3 |
| ピン 14 | D2 — Digital output bit 2 |
| ピン 15 | D1 — Digital output bit 1 |
| ピン 16 | D0 — Digital output bit 0 (LSB) |
| ピン 17 | NC — Not connected (per datasheet) |
| ピン 18 | NC — Not connected (per datasheet) |
| ピン 19 | NC — Not connected (per datasheet) |
| ピン 20 | NC — Not connected (per datasheet) |
| ピン 21 | NC — Not connected (per datasheet) |
| ピン 22 | NC — Not connected (per datasheet) |
| ピン 23 | NC — Not connected (per datasheet) |
| ピン 24 | NC — Not connected (per datasheet) |
| ピン 25 | NC — Not connected (per datasheet) |
| ピン 26 | NC — Not connected (per datasheet) |
| ピン 27 | NC — Not connected (per datasheet) |
| ピン 28 | NC — Not connected (per datasheet) |
主な用途
IDTADC0804S030TS-C18 の用途: 6 件s: Digital Video Broadcast Equipment, Ultrasound Front-End Digitizer, CCD Imaging Pipeline, Cable Modem Return-Path Digitizer, Radar IF Sampling, Industrial High-Speed Data Acquisition Module.
Digital Video Broadcast Equipment
The IDTADC0804S030TS-C18 suits DVB set-top box and modulator designs because its 30 MSPS sample rate comfortably exceeds the Nyquist requirement for 8 MHz-wide broadcast channels while the 8-bit resolution is sufficient for composite video digitisation. The flash architecture delivers single-cycle latency, eliminating the pipeline delay that complicates video timing. Place the device close to the analog video amplifier with 50 ohm controlled-impedance traces and decouple AVDD/DVDD with 100 nF plus 10 uF bulk capacitors to preserve ENOB.
おすすめ
Ultrasound Front-End Digitizer
In portable ultrasound front ends, the IDTADC0804S030TS-C18's ultra-low power dissipation and 30 MSPS rate enable digitisation of 10-15 MHz IF signals from piezoelectric transducers. The 8-bit resolution is adequate for envelope detection and B-mode imaging, while the differential VRT/VRB reference allows the input range to be matched to the TGC amplifier output swing. The 28-SSOP footprint keeps the analog front-end compact on the probe-side board.
おすすめ
CCD Imaging Pipeline
The IDTADC0804S030TS-C18 is a natural fit for digitising CCD output stages in machine vision and document scanner pipelines. Its 30 MSPS bandwidth handles multi-megapixel per-second data rates from 3-CCD cameras, and the differential reference lets the designer scale the full-scale range to the CCD's saturated output. The flash conversion provides deterministic sample-and-hold timing, which simplifies downstream digital gain and offset correction.
おすすめ
Cable Modem Return-Path Digitizer
DOCSIS return-path receivers digitise 5-42 MHz upstream spectrum, and the IDTADC0804S030TS-C18's 30 MSPS rate is more than sufficient while the 8-bit resolution matches typical QAM-64 upstream modulation. The ultra-low power profile keeps the cable modem's thermal envelope within spec. Combined with a downstream DOCSIS channel-bonding tuner, the ADC0804S030 forms a complete low-cost broadband PHY front end.
おすすめ
Radar IF Sampling
Short-range automotive and industrial radar front ends often IF-sample at 10-25 MHz, which is well within the IDTADC0804S030TS-C18's 30 MSPS envelope. The flash architecture's single-cycle latency avoids the blind-time errors that plague pipelined ADCs in pulsed-Doppler systems. The 28-SSOP footprint survives the -40C to +85C automotive temperature range when paired with proper PCB thermal management.
おすすめ
Industrial High-Speed Data Acquisition Module
Modular DAQ boards for vibration analysis and motor control feedback can use the IDTADC0804S030TS-C18 to digitise encoder quadrature, current sense, and vibration signals simultaneously via external analog muxing. The 30 MSPS rate provides 5x oversampling of typical 50 kHz mechanical bandwidths, improving SNR through subsequent digital filtering. The differential VRT/VRB reference supports bipolar input signals when paired with a front-end instrumentation amp.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: IDTADC0804S030TS-C18 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | IDTADC0804S040TS-C18 | IDTADC0804S050TS-C18 | ADC1003S030TS/C1 | ADC1003S050TS/C1 | ADC0808S125HW-C18 | ADS930E |
|---|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly IDT) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Texas Instruments |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Resolution | 8 bit | 8 bit | 8 bit | 10 bit | 10 bit | 8 bit | 8 bit |
| Sample Rate | 30 MSPS | 40 MSPS (+33%) | 50 MSPS (+67%) | 30 MSPS (same) | 50 MSPS (+67%) | 125 MSPS (+317%) | 30 MSPS (same) |
| Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Pin Count | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
主な差別化要因
- Lowest-speed member of a pin-compatible 30/40/50 MSPS family （vs IDTADC0804S050TS-C18)
- Single-cycle flash latency versus pipelined latency （vs ADS7805PG4)
- Differential reference for scalable input range （vs Single-ended 8-bit ADC references)
設計ノート
Route the analog input (AIN) trace as a 50 ohm controlled-impedance microstrip directly to the ADC pin, with no vias on the input side. Keep the analog input trace short and away from the digital outputs D0-D7 to minimise digital crosstalk into the sensitive analog front end. Place the reference decoupling capacitors (typically 100 nF plus 10 uF) within 5 mm of the VRT and VRB pins to prevent reference noise from degrading linearity.
Use separate AVDD and DVDD rails fed by independent LDO regulators or ferrite-bead filters from a common supply. Decouple each supply pin with a 100 nF ceramic capacitor plus a shared 10 uF bulk capacitor. Estimated: at 30 MSPS the ADC0804S030 typically draws around 50-80 mA from AVDD - verify the exact value in the datasheet before sizing the LDO. Power-rail sequencing is not strictly required but adding a 10 ohm ferrite on DVDD improves digital switching noise immunity.
Do not leave any of the VRT/VRB reference pins floating - the datasheet requires both be driven to a stable low-impedance reference to maintain linearity. Avoid driving the analog input with a source impedance above 100 ohm at 30 MSPS, otherwise the internal sample-and-hold will not settle and SNDR will degrade by 5-10 dB. The clock input (CLK) requires CMOS-level swing with rise/fall times under 5 ns - slower clocks will introduce jitter into the sampling instant and reduce ENOB.
コンプライアンス情報
RoHS and lead-free compliance confirmed via distributor listings (Full-Electronic, YIC). REACH, AEC-Q100, halogen-free, and conflict-mineral statements not explicitly published in the verified web data - set to unknown.