ADC08B200CIVS - 8-bit 200MSPS ADC w/ Buffer | TI 48-TQFP
MPN: ADC08B200CIVS ✓ Hoạt độngADC08B200CIVS Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADC08B200CIVS — 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 ADC08B200CIVS (cùng hình factor và footprint) — khác nhau ở Architecture, Package, Resolution, Input Type, Operating Temperature Range.
ADC08B200CIVS/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC08B200QIVS
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADC08B200CIVSX/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC081000CIYB
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADS8482IBRGZR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADC12040CIVY
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC08B200CIVS Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 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 |
| Khoảng nhiệt độ hoạt động | -40C to +105C (industrial) |
| Hộp | 48-pin TQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Automotive Grade | AEC-Q100 Grade 2 (ADC08B200Q variant only, not CIVS) |
Cấu hình chân ADC08B200CIVS
| Chân 1 | VREF — Voltage reference input/output |
| Chân 2 | AGND — Analog ground |
| Chân 3 | AVIN — Analog input |
| Chân 4 | AGND — Analog ground |
| Chân 5 | VCCA — Analog supply voltage |
| Chân 6 | CLK — Clock input |
| Chân 7 | CLKB — Complementary clock input |
| Chân 8 | AGND — Analog ground |
| Chân 9 | OE — Output enable (active low) |
| Chân 10 | PD — Power down |
| Chân 11 | RESET — Reset / capture trigger |
| Chân 12 | DGND — Digital ground |
| Chân 13 | VCCD — Digital core supply |
| Chân 14 | DGND — Digital ground |
| Chân 15 | VDR — Digital output supply (2.7V-3.3V) |
| Chân 16 | DGND — Digital ground |
| Chân 17 | D0 — Data output bit 0 (LSB) |
| Chân 18 | D1 — Data output bit 1 |
| Chân 19 | D2 — Data output bit 2 |
| Chân 20 | D3 — Data output bit 3 |
| Chân 21 | D4 — Data output bit 4 |
| Chân 22 | D5 — Data output bit 5 |
| Chân 23 | D6 — Data output bit 6 |
| Chân 24 | D7 — Data output bit 7 (MSB) |
| Chân 25 | NC — Not connected (per datasheet) |
| Chân 26 | NC — Not connected (per datasheet) |
| Chân 27 | AGND — Analog ground |
| Chân 28 | AVIN — Analog input (differential pair) |
| Chân 29 | AGND — Analog ground |
| Chân 30 | VCCA — Analog supply voltage |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | NC — Not connected (per datasheet) |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | AGND — Analog ground |
| Chân 42 | AVINB — Complementary analog input |
| Chân 43 | AGND — Analog ground |
| Chân 44 | VCCA — Analog supply voltage |
| Chân 45 | VREF — Voltage reference |
| Chân 46 | AGND — Analog ground |
| Chân 47 | DGND — Digital ground |
| Chân 48 | VDR — Digital output supply (2.7V-3.3V) |
Ứng dụng tiêu biểu
ADC08B200CIVS phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC08B200CIVS — 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 | 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 |
Bảo phân biệt quan trọng
- Integrated 1024-sample capture buffer eliminates external FIFO (vsADC12040CIVY)
- Auto-grade variant available in identical 48-TQFP footprint (vsADC08B200QIVS)
- Higher analog sample rate than typical 12-bit IF converters in same footprint (vsADC12040CIVY)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.