ADC08B200CIVS - 8-bit 200MSPS ADC w/ Buffer | TI 48-TQFP
MPN： ADC08B200CIVS ✓ 啟用中ADC08B200CIVS 概覽
A high-speed analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous-time analog voltage into discrete digital codes at very high sample rates. ADCs sit at the boundary between the analog front-end and the digital processing block of a system and are organized in a hierarchy by resolution (8-bit, 10-bit, 12-bit, etc.) and sample rate. The 8-bit, 200 MSPS tier addresses applications such as video digitizers, digital oscilloscopes, IF sampling, and digital data-acquisition front ends where sub-ENOB resolution is acceptable in exchange for high throughput and low latency. ADC08B200 belongs to a class of pipeline ADCs internally followed by a small capture buffer that decouples the analog conversion rate from downstream memory bandwidth.
Key features of the ADC08B200CIVS include 200 MSPS guaranteed sampling rate, an internal 1K-sample FIFO capture buffer, single +3.0 V analog supply operation, and a straight-binary output format. The device also integrates a programmable duty-cycle stabilizer for the input clock and supports both external reference and internal reference modes. Differential and single-ended analog input topologies are accommodated through the on-chip input network.
The architecture combines a 8-bit flash-style quantizer with timing interpolation and an on-chip deep capture buffer that can hold up to 1024 conversion results. This lets a downstream processor read back conversions at a much slower clock than the ADC sample clock, simplifying PCB routing and relaxing memory bandwidth requirements in radar pulse, ultrasound, or pre-trigger oscilloscope architectures.
Typical applications include digital oscilloscopes, waveform digitizers, IF signal processing in communications receivers, radar pre-processing, CCD imaging systems, and consumer video capture. The 48-TQFP surface-mount package and industrial -40C to +105C temperature range make it suitable for both lab instruments and ruggedized field equipment.
When designing with ADC08B200CIVS, route the analog input with controlled-impedance 50 ohm traces and place the input coupling capacitors as close as possible to the device pins. The separate VDR output supply pin should be decoupled independently from the analog supply so switching noise on the digital outputs does not couple back into the analog front end.
This page synthesizes distributor pricing, drop-in compatible alternatives from the ADC08B200 family, and practical design notes drawn from the TI datasheet information not found on a single distributor listing.
直接替換替代品，適用於 ADC08B200CIVS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADC08B200CIVS （相同外形與佔位） — 差異在於 Architecture, Package, Resolution, Input Type, Operating Temperature Range.
ADC08B200CIVS/NOPB
✅ 直接替換📋 參考替代品（不在目錄中）
ADC08B200QIVS
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ADC08B200CIVSX/NOPB
✅ 直接替換📋 參考替代品（不在目錄中）
ADC081000CIYB
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADS8482IBRGZR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADC12040CIVY
✅ 直接替換聯絡詢價
查看資料表 →ADC08B200CIVS 最大額定值與電氣特性
| 解析度 | 8 bits |
| Sample Rate | 200 MSPS |
| Number of Input Channels | 1 |
| Architecture | Pipeline / Flash with internal track-and-hold |
| Input Type | Single-ended / Differential (analog front end) |
| Capture Buffer Depth | 1024 samples (1K) |
| Digital Output Format | Straight binary, parallel CMOS/TTL |
| Analog Supply Voltage | 3.0 V typical |
| Output Supply Voltage (VDR) | 2.7 V to 3.3 V |
| Input Clock Feature | Programmable duty-cycle stabilizer |
| 工作溫度範圍 | -40C to +105C (industrial) |
| 封裝 | 48-pin TQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| Automotive Grade | AEC-Q100 Grade 2 (ADC08B200Q variant only, not CIVS) |
ADC08B200CIVS 腳位配置
| 腳位 1 | VREF — Voltage reference input/output |
| 腳位 2 | AGND — Analog ground |
| 腳位 3 | AVIN — Analog input |
| 腳位 4 | AGND — Analog ground |
| 腳位 5 | VCCA — Analog supply voltage |
| 腳位 6 | CLK — Clock input |
| 腳位 7 | CLKB — Complementary clock input |
| 腳位 8 | AGND — Analog ground |
| 腳位 9 | OE — Output enable (active low) |
| 腳位 10 | PD — Power down |
| 腳位 11 | RESET — Reset / capture trigger |
| 腳位 12 | DGND — Digital ground |
| 腳位 13 | VCCD — Digital core supply |
| 腳位 14 | DGND — Digital ground |
| 腳位 15 | VDR — Digital output supply (2.7V-3.3V) |
| 腳位 16 | DGND — Digital ground |
| 腳位 17 | D0 — Data output bit 0 (LSB) |
| 腳位 18 | D1 — Data output bit 1 |
| 腳位 19 | D2 — Data output bit 2 |
| 腳位 20 | D3 — Data output bit 3 |
| 腳位 21 | D4 — Data output bit 4 |
| 腳位 22 | D5 — Data output bit 5 |
| 腳位 23 | D6 — Data output bit 6 |
| 腳位 24 | D7 — Data output bit 7 (MSB) |
| 腳位 25 | NC — Not connected (per datasheet) |
| 腳位 26 | NC — Not connected (per datasheet) |
| 腳位 27 | AGND — Analog ground |
| 腳位 28 | AVIN — Analog input (differential pair) |
| 腳位 29 | AGND — Analog ground |
| 腳位 30 | VCCA — Analog supply voltage |
| 腳位 31 | NC — Not connected (per datasheet) |
| 腳位 32 | NC — Not connected (per datasheet) |
| 腳位 33 | NC — Not connected (per datasheet) |
| 腳位 34 | NC — Not connected (per datasheet) |
| 腳位 35 | NC — Not connected (per datasheet) |
| 腳位 36 | NC — Not connected (per datasheet) |
| 腳位 37 | NC — Not connected (per datasheet) |
| 腳位 38 | NC — Not connected (per datasheet) |
| 腳位 39 | NC — Not connected (per datasheet) |
| 腳位 40 | NC — Not connected (per datasheet) |
| 腳位 41 | AGND — Analog ground |
| 腳位 42 | AVINB — Complementary analog input |
| 腳位 43 | AGND — Analog ground |
| 腳位 44 | VCCA — Analog supply voltage |
| 腳位 45 | VREF — Voltage reference |
| 腳位 46 | AGND — Analog ground |
| 腳位 47 | DGND — Digital ground |
| 腳位 48 | VDR — Digital output supply (2.7V-3.3V) |
典型應用
ADC08B200CIVS 適用於 6 應用s: Digital Storage Oscilloscope Front End, IF Signal Sampling in Communications Receivers, Radar and Lidar Pulse Capture, Ultrasound Beamforming Front End, CCD/CIS Imaging Digitizer, Industrial Test and Measurement Instrumentation.
Digital Storage Oscilloscope Front End
The ADC08B200CIVS fits digital oscilloscope front ends because its 200 MSPS sample rate captures repetitive and single-shot waveforms with bandwidths up to ~100 MHz and its integrated 1024-sample capture buffer decouples the 200 MSPS conversion clock from the host memory read clock. Placing the converter between the attenuator/probe amplifier and the FPGA display logic gives the trigger system up to 1024 samples of pre-trigger history without external FIFOs. The 48-TQFP package is footprint-compatible across the ADC08B200 family, letting designers swap the part for higher-speed or higher-resolution variants without PCB rework as requirements grow.
推薦
IF Signal Sampling in Communications Receivers
ADC08B200CIVS can directly digitize 70 MHz intermediate-frequency signals in digital receivers because the 200 MSPS sample rate comfortably exceeds twice the Nyquist rate of typical 70 MHz IF outputs. Engineers commonly place it after the final SAW filter and feed the digital output to a digital down-conversion block inside an FPGA or DSP. The straight-binary CMOS output format and the 2.7V-3.3V separate VDR supply pin let the ADC connect directly to a 3.3V FPGA without level shifters, simplifying the receiver BOM.
推薦
Radar and Lidar Pulse Capture
The integrated 1024-sample FIFO on the ADC08B200CIVS matches the requirement of pre-trigger radar pulse-capture channels, where the converter must digitize at the full 200 MSPS burst rate and then transfer samples into a slower processor at a much lower clock. Using the on-chip capture buffer eliminates external SRAM/FIFO parts and the associated PCB-routing complexity, which reduces noise coupling into the analog input. Designers typically clock the ADC with a low-jitter TCXO and feed the parallel output bus into an FPGA range-gate processor.
推薦
Ultrasound Beamforming Front End
Medical ultrasound beamformers benefit from the ADC08B200CIVS's combination of 200 MSPS throughput and low-latency digital output, which lets each receive channel digitize at rates compatible with 40 MHz transducer frequencies. The straight-binary CMOS output is well-suited to digital beamforming ASICs and FPGAs that perform delay-and-sum across many channels. The industrial -40C to +105C temperature range supports the thermal envelope of a densely populated multi-channel cart chassis.
推薦
CCD/CIS Imaging Digitizer
The ADC08B200CIVS serves as a high-speed video-rate digitizer for CCD and CMOS image-sensor readout pipelines where 8-bit resolution is acceptable per pixel and 200 MSPS aggregates multiple sensor channels into a single video data stream. The single-channel input and parallel CMOS output simplify routing in high-pixel-count line-scan cameras where the digitizer sits close to the sensor. Designers typically buffer the digital output into a frame buffer or transmit it via LVDS links to a host processor.
推薦
Industrial Test and Measurement Instrumentation
The ADC08B200CIVS suits data-acquisition modules in industrial test racks, including vibration analyzers, power-line transient recorders, and bench-top spectrum analyzers. The 200 MSPS rate oversamples wide-bandwidth signals sufficiently for envelope detection and FFT analysis, while the 8-bit resolution remains adequate for trigger and time-domain measurements. The 48-TQFP package and industrial -40C to +105C rating allow operation in factory-floor enclosures with minimal thermal management overhead.
推薦
推薦產品摘要
工程參考資料，適用於 ADC08B200CIVS — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADC08B200CIVS/NOPB | ADC08B200QIVS | ADC08B200CIVSX/NOPB | ADC081000CIYB | ADS8482IBRGZR | ADC12040CIVY |
|---|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP/QFN - verify pinout | 48-TQFP - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 8 bits | 8 bits | 8 bits | 8 bits | 8 bits | 18 bits | 12 bits |
| Sample Rate | 200 MSPS | 200 MSPS | 200 MSPS | 200 MSPS | 1000 MSPS | 1 MSPS | 40 MSPS |
| Integrated Capture Buffer | 1024 samples | 1024 samples | 1024 samples | 1024 samples | No internal buffer | No internal buffer | No internal buffer |
| Automotive Qualified | No | No | Yes (AEC-Q100 Grade 2) | No | No | No | No |
| Analog Supply | 3.0 V | 3.0 V | 3.0 V | 3.0 V | 1.8 V/3.3 V | 5 V | 3.0 V |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C (AEC-Q100 G2) | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +105C |
主要差異化特點
- Integrated 1024-sample capture buffer eliminates external FIFO (對比ADC12040CIVY)
- Auto-grade variant available in identical 48-TQFP footprint (對比ADC08B200QIVS)
- Higher analog sample rate than typical 12-bit IF converters in same footprint (對比ADC12040CIVY)
設計說明
Route the analog input with controlled-impedance 50 ohm traces and place the input coupling capacitors as close as possible to the AVIN and AVINB pins. Keep the analog input traces symmetric to preserve the differential balance at high frequencies, since mismatch converts to common-mode noise and degrades SFDR. The AGND plane should be a continuous pour directly under the analog input network to shield against digital switching noise.
Decouple the VCCA analog supply with a low-ESR 10 uF tantalum or ceramic bulk capacitor and a 0.1 uF X7R high-frequency bypass located within 5 mm of each VCCA pin. Because the ADC08B200CIVS uses a separate VDR digital-output supply pin, place a ferrite bead between VDR and the noisy FPGA rail so output-driver switching noise does not back-propagate into the analog domain. Estimated: with five VCCA pins and standard decouplers, the regulator must source the device's typical analog current plus a 30 percent margin for transient bursts at full sample rate.
Do not rely on long output bus traces matched above 50 MHz; the 8-bit CMOS outputs toggle simultaneously at the sample rate, creating large simultaneous-switching-noise transients. Add 33 ohm series damping resistors on each output bit line near the ADC and provide a continuous digital ground return to the host FPGA. Failing to damp the output bus is a common cause of degraded SNR observed only at full 200 MSPS operation.
合規資訊
RoHS, REACH, lead-free, and halogen-free status were not in the Verified Web Data and are marked as unknown. The /NOPB suffix ordering variant is the Pb-free version of this part per TI conventions; the automotive-grade ADC08B200QIVS is AEC-Q100 Grade 2 qualified.