ADS5102CPFB - 10-Bit 65MSPS 1.8V ADC | Texas Instruments
MPN: ADS5102CPFB ✗ Cuối đờiADS5102CPFB Tóm tắt
An analog-to-digital converter (ADC) is a data converter that translates continuous analog signals into discrete digital codes at a defined sampling rate. Pipelined ADCs are a popular architecture for high-speed, moderate-resolution conversion because they achieve high sampling rates (tens of MSPS to hundreds of MSPS) while keeping power and die area low. The ADS5102 belongs to the pipelined ADC product family within TI's data converter portfolio, sitting under the broader hierarchy of data converters -> signal chain -> mixed-signal semiconductors.
Key features include 65 MSPS sampling rate (versus 40 MSPS for the pin-compatible ADS5103), internal 1.8 V reference with optional external reference support, integrated sample-and-hold, single 1.8 V supply operation, and a power-down pin for battery-aware designs. Digital outputs are 3.3 V CMOS-compatible for direct connection to FPGAs, ASICs, or DSPs without level shifters.
Architecturally, the device uses multiple low-resolution pipeline stages that each quantize a residue, producing 10-bit output codes at the rated 65 MSPS throughput. The on-chip bandgap reference and proprietary calibration trim gain and offset across temperature.
Typical applications include CCD imaging front ends, baseband I/Q sampling for wireless receivers, video digitisation, portable instrumentation, and ultrasound receive channels. The wide input bandwidth and low 1.8 V supply current make the part attractive for handheld and field-portable designs.
When designing with the ADS5102CPFB, place the 0.1 uF + 10 uF decoupling network within 5 mm of each supply pin to suppress switching noise from the digital outputs. The internal reference is suitable for prototyping but should be bypassed with an external reference for production accuracy. Layout the differential input traces as a length-matched pair with characteristic impedance control to preserve SNR at the rated sample rate.
Bộ thay thế dễ dàng lắp đặt cho ADS5102CPFB — 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 ADS5102CPFB (cùng hình factor và footprint) — khác nhau ở Package, Digital Supply Voltage, Reference, Resolution, Input Type.
ADS5103CPFB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5102CPFBG4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5102IPFB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5102IPFBG4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5102IPFBR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5102CPFB Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Tỷ lệ lấy mẫu | 65 MSPS |
| Architecture | Pipelined |
| Number of Input Channels | 1 |
| Input Type | Differential |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V |
| Digital Output Logic Level | 3.3 V CMOS-compatible |
| Data Interface | Parallel |
| Reference Type | Internal / External |
| Sample-and-Hold | Integrated |
| Power-Down Mode | Yes |
| Hộp | 48-TQFP (PFB) 7x7 mm |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân ADS5102CPFB
| Chân 1 | AVDD — Analog 1.8 V supply |
| Chân 2 | AVDD — Analog 1.8 V supply |
| Chân 3 | AGND — Analog ground |
| Chân 4 | INP — Differential analog input (positive) |
| Chân 5 | INN — Differential analog input (negative) |
| Chân 6 | AGND — Analog ground |
| Chân 7 | VREF — Reference voltage (internal/external) |
| Chân 8 | REFM — Reference ground |
| Chân 9 | REFP — Reference positive |
| Chân 10 | AGND — Analog ground |
| Chân 11 | CLKP — Differential clock input (positive) |
| Chân 12 | CLKN — Differential clock input (negative) |
| Chân 13 | AGND — Analog ground |
| Chân 14 | PWDN — Power-down input (active high) |
| Chân 15 | DGND — Digital ground |
| Chân 16 | DVDD — Digital 1.8 V supply |
| Chân 17 | DRDY — Data ready output |
| Chân 18 | OE — Output enable |
| Chân 19 | DGND — Digital ground |
| Chân 20 | D9 — Data output bit 9 (MSB) |
| Chân 21 | D8 — Data output bit 8 |
| Chân 22 | D7 — Data output bit 7 |
| Chân 23 | D6 — Data output bit 6 |
| Chân 24 | D5 — Data output bit 5 |
| Chân 25 | D4 — Data output bit 4 |
| Chân 26 | D3 — Data output bit 3 |
| Chân 27 | D2 — Data output bit 2 |
| Chân 28 | D1 — Data output bit 1 |
| Chân 29 | D0 — Data output bit 0 (LSB) |
| Chân 30 | DGND — Digital ground |
| Chân 31 | DVDD — Digital 1.8 V supply |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | DVDD — Digital 1.8 V supply |
| Chân 35 | DGND — Digital ground |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | AVDD — Analog 1.8 V supply |
| Chân 39 | AGND — Analog ground |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | AVDD — Analog 1.8 V supply |
| Chân 43 | AGND — Analog ground |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | AVDD — Analog 1.8 V supply |
| Chân 47 | AGND — Analog ground |
| Chân 48 | AVDD — Analog 1.8 V supply |
Ứng dụng tiêu biểu
ADS5102CPFB phù hợp cho 6 Áp dụngs: CCD Imaging Front End, Wireless Baseband I/Q Sampling, Video Digitisation, Portable Test and Measurement, Ultrasound Receive Channel, Industrial Control Data Acquisition.
CCD Imaging Front End
The ADS5102CPFB's 65 MSPS throughput and 10-bit resolution suit CCD line-scan and area-array imaging front ends where analog pixel data must be digitised at high frame rates. The 1.8 V analog/digital supply minimises power dissipation in densely packed camera head boards. The differential analog input rejects common-mode pickup from the CCD clock traces, while the parallel CMOS outputs stream data straight into an FPGA for pixel reconstruction. Designers typically drive the input through a differential amp or transformer to preserve the SNR budget.
Được đề xuất
Wireless Baseband I/Q Sampling
In baseband I/Q sampling chains for wireless receivers, the ADS5102CPFB digitises I or Q channels at baseband after quadrature demodulation. The 65 MSPS sample rate comfortably exceeds Nyquist for typical baseband bandwidths, while the 10-bit resolution is adequate for many narrowband and mid-bandwidth standards. The single 1.8 V supply simplifies power tree design in portable handsets. Differential inputs reject local-oscillator leakage at the demodulator output, improving effective SNR.
Được đề xuất
Video Digitisation
The ADS5102CPFB is well matched to standard-definition and lower-resolution video digitisation tasks where composite or component analog video must be sampled at 65 MSPS. The differential input accepts direct-coupled or AC-coupled video signals after a gain stage, and the parallel CMOS outputs deliver pixel data to a video processor or FPGA without level translation. Internal reference support reduces external BOM cost for cost-sensitive consumer video products.
Được đề xuất
Portable Test and Measurement
Handheld oscilloscope probes, spectrum analysers, and field-portable instruments use the ADS5102CPFB for digitising wideband analog signals at 65 MSPS with 10-bit resolution. The 1.8 V supply and integrated power-down mode extend battery life between charges. Differential inputs reject EMI pickup on long probe cables, while the small 48-TQFP footprint allows compact PCB layouts for portable enclosures. Internal reference support simplifies calibration-free prototyping.
Được đề xuất
Ultrasound Receive Channel
In low-end ultrasound receivers the ADS5102CPFB digitises the post-TGC analog receive signal at 65 MSPS, providing 10-bit resolution suitable for B-mode imaging. The differential input rejects common-mode noise from the transducer cable, while the integrated sample-and-hold captures fast echoes without external gating. Multiple ADS5102 channels can be paralleled across an FPGA for multi-element beamforming in compact cart-based ultrasound systems.
Được đề xuất
Industrial Control Data Acquisition
Industrial PLC analog input modules and high-speed process monitoring boards employ the ADS5102CPFB for digitising 4-20 mA loop or transducer signals at 65 MSPS. The 10-bit resolution suits many supervisory control tasks, while the 3.3 V CMOS outputs interface directly to industrial microcontrollers. Differential inputs reject switching noise from nearby motor drives and relay coils. Internal reference support reduces calibration drift in factory environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS5102CPFB — 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 | ADS5103CPFB | ADS5102CPFBG4 | ADS5102IPFB | ADS5102IPFBG4 | ADS5102IPFBR |
|---|---|---|---|---|---|---|
| Package | 48-TQFP (PFB) 7x7 mm | 48-TQFP (PFB) 7x7 mm - same | 48-TQFP (PFB) 7x7 mm - same | 48-TQFP (PFB) 7x7 mm - same | 48-TQFP (PFB) 7x7 mm - same | 48-TQFP (PFB) 7x7 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sampling Rate | 65 MSPS | 40 MSPS (-38%) | 65 MSPS | 65 MSPS | 65 MSPS | 65 MSPS |
| Analog Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Temperature Grade | Commercial | Commercial | Commercial | Industrial | Industrial | Industrial |
| Reference Type | Internal / External | Internal / External | Internal / External | Internal / External | Internal / External | Internal / External |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Highest 65 MSPS grade within the ADS510x family (vsADS5103CPFB)
- Differential analog input rejects common-mode noise (vsADS5102CPFBG4 (same die, reel variant))
- Industrial temperature grade option exists in same package (vsADS5102IPFB)
Ghi chú thiết kế
Place a 0.1 uF X7R ceramic bypass capacitor within 2 mm of every AVDD and DVDD pin, and a single 10 uF tantalum or ceramic bulk capacitor near the supply pins. Estimated: with 5 AVDD and 5 DVDD pins tied together, total decoupling capacitance of roughly 6.0 uF + bulk is needed to keep digital switching noise below 50 mVpp on the analog rail. The 1.8 V analog and digital rails should be star-routed from a common ferrite bead to isolate high-frequency noise generated by the parallel CMOS outputs.
Route the differential analog input pair (INP/INN) and the differential clock pair (CLKP/CLKN) as 100 ohm differential length-matched traces with no more than 100 mil length mismatch. Keep digital output bus traces (D0-D9) and the DRDY strobe routed away from the analog input region to prevent digital-to-analog coupling. Use a continuous ground plane on the layer beneath the analog signals to provide a low-impedance return path and to minimise loop area for the high-speed switching currents.
Do not operate the ADS5102CPFB above the absolute maximum analog supply of 1.95 V or below 1.65 V - the device is not 3.3 V tolerant on AVDD/DVDD even though its outputs are 3.3 V CMOS-compatible. Do not leave the PWDN pin floating; tie it low through a 10 kohm resistor to enable normal operation. The internal reference is shared between analog and digital domains; if an external reference is used, ensure the reference decoupling caps are placed within 5 mm of the REFP/REFM pins to avoid reference-noise-induced gain error.
Thông tin tuân thủ
RoHS, REACH, and lead-free status not present in the verified web data for ADS5102CPFB; status should be confirmed from the lot-specific manufacturer documentation when purchasing obsolete stock. AEC-Q100 not applicable (not an automotive-grade part).
