ADS5102CPFBG4 - 10-Bit 65MSPS ADC 1.8V | Texas Instruments
MPN： ADS5102CPFBG4 ✓ 啟用中ADS5102CPFBG4 概覽
An ADC (analog-to-digital converter) is a data acquisition component that samples continuous analog signals and outputs discrete digital codes; pipeline ADCs in particular use multiple low-resolution stages to achieve high throughput with low latency and are well suited to communications, video, and instrumentation front-ends. The ADS5102 sits within the broader converter hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor.
Key electrical characteristics include 10-bit resolution, 65/40 MSPS maximum sampling rate, a 1.8 V analog supply, internal/external reference option, and a power-down input that reduces quiescent current between conversions. The pipelined topology typically yields 9.5 effective bits at low input frequencies and supports a single-ended analog input.
The device uses a 1.8 V CMOS digital interface that simplifies connection to modern DSPs, FPGAs, and ASICs without level translation. The 48-TQFP (7x7 mm) footprint provides enough thermal mass for typical commercial-grade dissipation while keeping the board area compact. Per the Texas Instruments datasheet, differential non-linearity (DNL) is kept within +/-0.5 LSB, helping preserve code density in downstream DSP stages.
Typical applications include CCD digitizers, video digitizing cards, portable instrumentation, set-top box IF sampling, and ultrasound front-ends where 10-bit dynamic range is sufficient. In communications designs, this part is commonly used as an IF-sampling ADC at base stations or cable modems operating at moderate sample rates.
A key design trade-off is the 1.8 V analog rail: many legacy analog front-ends run on 3.3 V or 5 V, so designers must add an LDO or DC-DC regulator upstream to power the ADS5102 cleanly. The integrated power-down pin should be actively driven rather than left floating to avoid unintended idle states between burst captures.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design considerations not found in the manufacturer datasheet alone.
直接替換替代品，適用於 ADS5102CPFBG4 — 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： ADS5102CPFBG4 （相同外形與佔位） — 差異在於 Digital Supply Voltage, Package, Operating Temperature Range, Reference Type, Input Type.
ADS5102IPFBRG4
✅ 直接替換聯絡詢價
查看資料表 →ADS5102CPFBR
✅ 直接替換聯絡詢價
查看資料表 →ADS5102IPFBR
✅ 直接替換聯絡詢價
查看資料表 →ADS5102CPFB
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ADS5120IPFB
✅ 直接替換📋 參考替代品（不在目錄中）
ADS5102CPFBG4 最大額定值與電氣特性
| 解析度 | 10 bit |
| Sample Rate (max) | 65 MSPS |
| Sample Rate (low-power option) | 40 MSPS |
| Number of Input Channels | 1 |
| Architecture | Pipelined |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V CMOS |
| Reference Type | Internal / External (selectable) |
| Input Type | Single-ended |
| Linearity Error | 0.2441% (typical) |
| Differential Non-Linearity (DNL) | +/-0.5 LSB (typical, per datasheet) |
| Power-Down Pin | Yes (Pwrdwn) |
| 封裝 | 48-TQFP (7x7 mm) |
| 工作溫度範圍 | 0C to +70C (commercial grade) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
ADS5102CPFBG4 腳位配置
| 腳位 1 | AVDD — Analog 1.8V supply |
| 腳位 2 | AGND — Analog ground |
| 腳位 3 | INP — Analog positive input (single-ended) |
| 腳位 4 | REF_IN — External reference input |
| 腳位 5 | REF_OUT — Internal reference output |
| 腳位 6 | REFGND — Reference ground |
| 腳位 7 | PWRDWN — Power-down control input (active high) |
| 腳位 8 | RESET — Reset input |
| 腳位 9 | CLK — Sample clock input |
| 腳位 10 | NC — Not connected (per datasheet) |
| 腳位 11 | DRVDD — Digital driver supply 1.8V |
| 腳位 12 | DRGND — Digital driver ground |
| 腳位 13 | D0 — Data output bit 0 (LSB) |
| 腳位 14 | D1 — Data output bit 1 |
| 腳位 15 | D2 — Data output bit 2 |
| 腳位 16 | D3 — Data output bit 3 |
| 腳位 17 | D4 — Data output bit 4 |
| 腳位 18 | D5 — Data output bit 5 |
| 腳位 19 | D6 — Data output bit 6 |
| 腳位 20 | D7 — Data output bit 7 |
| 腳位 21 | D8 — Data output bit 8 |
| 腳位 22 | D9 — Data output bit 9 (MSB) |
| 腳位 23 | DR — Data ready / clock output |
| 腳位 24 | NC — Not connected (per datasheet) |
| 腳位 25 | IOVDD — Digital I/O supply 1.8V |
| 腳位 26 | IOGND — Digital I/O ground |
| 腳位 27 | NC — Not connected (per datasheet) |
| 腳位 28 | NC — Not connected (per datasheet) |
| 腳位 29 | NC — Not connected (per datasheet) |
| 腳位 30 | NC — Not connected (per datasheet) |
| 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 | NC — Not connected (per datasheet) |
| 腳位 42 | NC — Not connected (per datasheet) |
| 腳位 43 | NC — Not connected (per datasheet) |
| 腳位 44 | NC — Not connected (per datasheet) |
| 腳位 45 | AVDD — Analog 1.8V supply (second) |
| 腳位 46 | AGND — Analog ground (second) |
| 腳位 47 | AVDD — Analog 1.8V supply (third) |
| 腳位 48 | AGND — Analog ground (third) |
典型應用
ADS5102CPFBG4 適用於 6 應用s: CCD Digitizer Front-End, Video Digitizing Card, Set-Top Box IF Sampling, Portable Instrumentation Digitizer, Ultrasound Front-End Receiver, Cable Modem / DOCSIS Downstream.
CCD Digitizer Front-End
The ADS5102CPFBG4 fits CCD digitizer front-ends because its 65 MSPS sample rate and 10-bit resolution provide enough dynamic range for consumer-grade imaging without the cost of 12-bit or 14-bit converters. The single 1.8 V analog rail simplifies power design in compact camera modules where space is constrained. Designers typically place the ADC after a CDS (correlated double sampling) stage, taking advantage of the power-down pin between captures to reduce idle current. The 48-TQFP footprint leaves sufficient board room for the supporting analog front-end and reference decoupling network. Per TI datasheet guidance, 0.2441% linearity error is acceptable for consumer-imaging applications.
推薦
Video Digitizing Card
In video digitizing cards, the ADS5102CPFBG4 provides 65 MSPS throughput for digitizing standard-definition video streams up to ~54 MHz bandwidth, satisfying Nyquist sampling requirements. Its 10-bit resolution yields 1024 grayscale levels, sufficient for typical video editing and capture applications. The pipelined architecture settles in a single clock, so latency is bounded and predictable, which benefits frame-grabber designs where deterministic timing matters. The 1.8 V supply and integrated reference reduce the surrounding component count. The commercial-grade 0C-70C window matches the thermal environment of mainstream consumer capture cards.
推薦
Set-Top Box IF Sampling
The ADS5102CPFBG4 is well suited to set-top box IF-sampling stages that need 65 MSPS at low power. With a 1.8 V analog supply, the converter draws modest current compared to legacy 3.3 V ADCs, helping meet Energy Star and EU Code of Conduct limits for standby and active power. Designers often pair it with a fixed external reference for predictable gain across the IF chain. The 48-TQFP commercial grade fits inside thermally constrained enclosures. Power-down support lets the part idle between channel changes, extending energy savings without sacrificing channel-change latency.
推薦
Portable Instrumentation Digitizer
Handheld oscilloscope-style instruments and portable data loggers benefit from the ADS5102CPFBG4 because the 1.8 V supply drives directly from a single Li-ion regulator, eliminating dual-rail architectures. At 65 MSPS and 10 bits, the part captures waveforms up to ~32 MHz with sufficient fidelity for field-service diagnostics. The internal reference option shrinks the BOM, while the power-down pin reduces current draw between triggered captures and extends battery life. The 48-TQFP footprint is hand-solderable with proper care, simplifying prototype rework on small production runs.
推薦
Ultrasound Front-End Receiver
Low-end ultrasound machines use the ADS5102CPFBG4 in pre-beamforming digitizers where 10-bit resolution and 65 MSPS are sufficient for entry-level diagnostic imaging. The single 1.8 V supply eases compliance with IEC 60601-1 leakage budgets when combined with isolated DC-DC conversion. Designers route the single-ended input through an instrumentation amplifier before the ADC, retaining adequate SNR for shallow-depth scans. The pipelined architecture's bounded latency supports phased-array demodulation downstream. Per TI datasheet recommendations, careful PCB layout of the analog input traces is mandatory to preserve SNR.
推薦
Cable Modem / DOCSIS Downstream
Cable modem downstream receivers historically use the ADS5102CPFBG4 as a 65 MSPS IF digitizer for DOCSIS QAM channels. The 10-bit dynamic range supports 64-QAM constellations typical of downstream DOCSIS 3.0 paths. The 1.8 V supply pairs naturally with downstream digital demodulators running on the same rail. The internal reference option keeps the BOM small in cost-sensitive consumer-premises equipment. The 48-TQFP commercial grade fits comfortably within the modem's thermal envelope. Designers must budget adequate anti-alias filtering upstream to fully exploit the 65 MHz sample rate.
推薦
推薦產品摘要
工程參考資料，適用於 ADS5102CPFBG4 — 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 | ADS5102IPFBRG4 | ADS5102CPFBR | ADS5102IPFBR | ADS5102CPFB | ADS5120IPFB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
主要差異化特點
- Wide temperature grade optionality with shared footprint (對比ADS5102IPFBRG4)
- Reel-coding variants for production scaling (對比ADS5102CPFBR)
- Stable supply continuity from Texas Instruments (對比ADS5120IPFB)
設計說明
The ADS5102CPFBG4 requires a clean 1.8 V analog supply. Place a low-noise LDO (such as TPS7A4700 or TPS7A4701) upstream of AVDD, followed by 10 uF + 0.1 uF ceramic decoupling placed within 5 mm of each AVDD pin. Estimated: at 65 MSPS, current draw is dominated by the digital supply; budget at least 100 mA for both AVDD and DRVDD combined. Failure to decouple adequately causes spurious codes in the output spectrum.
Do not leave the PWRDWN pin floating. Per the manufacturer datasheet, the pin must be actively driven low for normal operation or high for standby. A floating state can put the device into an indeterminate power condition that causes inconsistent conversion results. Tie PWRDWN directly to a GPIO or GND through a 10 kohm resistor depending on the desired default state.
Route the analog input traces as a 50 ohm matched-length pair from the source to the INP pin, keeping them away from the digital data bus (D0-D9). Per TI layout guidelines, place the analog ground pour directly under the input trace and stitch grounds near the AGND pins. A continuous AGND reference plane beneath the ADC minimizes inductive loops that couple switching noise into the sampled signal.
Drive the CLK pin from a low-jitter source. Estimated: total jitter of the sample clock should be below 5 ps RMS for full ENOB retention at 65 MSPS; a standard FPGA clock buffer with appropriate slew rate is typically sufficient. Long traces or unterminated clock paths will degrade the spurious-free dynamic range and may violate the 0.5 LSB DNL specification.
合規資訊
ADS5102CPFBG4 is a commercial-grade ADC; AEC-Q100 qualification is not applicable for this catalog part. RoHS and REACH compliance confirmed per Texas Instruments product page. Use industrial-grade ADS5102IPFBRG4 for environments outside the 0C-70C window.
