ADS5102IPFBR - 10-Bit 65MSPS ADC, 1.8V, 48-TQFP | Texas Instruments
MPN: ADS5102IPFBR ✓ Hoạt độngADS5102IPFBR Tóm tắt
A pipelined ADC is a high-speed data converter architecture that processes input samples through a cascade of low-resolution stages, each producing a coarse residue that the next stage refines; this parallel-by-stage approach enables sample rates from tens to hundreds of MSPS while keeping die area and power manageable. The ADS5102 belongs to the high-speed converter family within TI's data acquisition IC portfolio, sitting above general-purpose successive-approximation register (SAR) ADCs and below TI's 12/14-bit pipelined families.
Key features of the ADS5102IPFBR include a 65 MHz maximum sample rate, a 1.8 V analog supply, CMOS-compatible digital outputs (1.8 V/3.3 V logic compatible), an internal reference option, and a power-down pin for low standby current. It accepts a differential analog input, which improves common-mode noise rejection and even-order harmonic performance. Industrial temperature grade (-40C to +85C) and a 0.2441% maximum linearity error are quoted on distributor listings.
The pipelined architecture with internal reference and small 7x7 mm TQFP footprint makes the ADS5102IPFBR a strong fit for mid-speed image, video, and baseband signal acquisition systems. Designers typically pair it with a low-noise LDO, an op-amp driver front-end, and a clock source with low jitter to meet ENOB and SFDR budgets.
Typical applications include CCD/CIS image sensor digitizers, video processing front-ends, portable instrumentation, set-top box and video capture subsystems, and baseband I/Q sampling for wireless receivers. The wide -40C to +85C range and small TQFP-48 footprint also suit handheld and embedded designs.
When laying out the PCB, keep analog input traces short and matched, place the 1.8 V decoupling network directly at the AVDD/DRVDD pins, and route the digital outputs away from the analog input. Use a clock driver with <1 ps RMS jitter when SNR at the input is the limiting specification.
This page synthesizes verified distributor pricing, datasheet-derived specifications, and drop-in pin-compatible alternatives not aggregated on a single manufacturer page, giving engineers a fast selection reference for ADS5102IPFBR.
Bộ thay thế dễ dàng lắp đặt cho ADS5102IPFBR — 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 ADS5102IPFBR (cùng hình factor và footprint) — khác nhau ở Package, Digital Supply Voltage, Reference, Input Type, Number of Channels.
ADS5102IPFB
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADS5102IPFBG4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5103IPFBR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5102IPFBT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADS5103IPFB
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADS5102IPFBR Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bits |
| Sample Rate (max) | 65 MSPS |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V (3.3 V logic compatible outputs) |
| Input Type | Differential |
| Reference | Internal (with external option) |
| Output Interface | Parallel CMOS |
| Power-Down Pin | Yes |
| Maximum Linearity Error | 0.2441% (per distributor listing) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 48-TQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân ADS5102IPFBR
| Chân 1 | AVDD — Analog supply (1.8 V) |
| Chân 2 | INP — Positive differential analog input |
| Chân 3 | INM — Negative differential analog input |
| Chân 4 | AGND — Analog ground |
| Chân 5 | VCM — Common-mode voltage bypass |
| Chân 6 | REFTS — Top reference decoupling |
| Chân 7 | REFBS — Bottom reference decoupling |
| Chân 8 | REFP — Positive reference output |
| Chân 9 | REFN — Negative reference output |
| Chân 10 | REFT — Reference top (internal/external select) |
| Chân 11 | DRVDD — Digital output supply (1.8 V) |
| Chân 12 | DRGND — Digital ground |
| Chân 13 | CLK — Sample clock input |
| Chân 14 | CLKB — Complementary sample clock input |
| Chân 15 | PDN — Power-down (active high) |
| Chân 16 | OE — Output enable (active high) |
| Chân 17 | D0 — Digital output bit 0 (LSB) |
| Chân 18 | D1 — Digital output bit 1 |
| Chân 19 | D2 — Digital output bit 2 |
| Chân 20 | D3 — Digital output bit 3 |
| Chân 21 | D4 — Digital output bit 4 |
| Chân 22 | D5 — Digital output bit 5 |
| Chân 23 | D6 — Digital output bit 6 |
| Chân 24 | D7 — Digital output bit 7 |
| Chân 25 | D8 — Digital output bit 8 |
| Chân 26 | D9 — Digital output bit 9 (MSB) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
| Chân 29 | AGND — Analog ground |
| Chân 30 | AVDD — Analog supply (1.8 V) |
| Chân 31 | AVDD — Analog supply (1.8 V) |
| Chân 32 | AGND — Analog ground |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | AVDD — Analog supply (1.8 V) |
| Chân 35 | INM — Negative differential analog input (secondary) |
| Chân 36 | INP — Positive differential analog input (secondary) |
| Chân 37 | AGND — Analog ground |
| Chân 38 | AVDD — Analog supply (1.8 V) |
| Chân 39 | REFM — Internal reference mode select |
| Chân 40 | AGND — Analog ground |
| Chân 41 | AVDD — Analog supply (1.8 V) |
| Chân 42 | DRVDD — Digital output supply (1.8 V) |
| Chân 43 | DRGND — Digital ground |
| Chân 44 | DRVDD — Digital output supply (1.8 V) |
| Chân 45 | DRGND — Digital ground |
| Chân 46 | DRVDD — Digital output supply (1.8 V) |
| Chân 47 | DRGND — Digital ground |
| Chân 48 | AVDD — Analog supply (1.8 V) |
Ứng dụng tiêu biểu
ADS5102IPFBR phù hợp cho 6 Áp dụngs: CCD/CIS Image Sensor Digitizer, Standard-Definition Video Capture, Baseband I/Q Sampling in Wireless Receivers, Portable Test and Measurement Instrumentation, Industrial Process Control Data Acquisition, Set-Top Box and Video Capture Subsystems.
CCD/CIS Image Sensor Digitizer
The ADS5102IPFBR's 65 MSPS sample rate comfortably exceeds the bandwidth required for 12-14 MHz pixel-clock CCD and CMOS image sensor front-ends, while its 10-bit resolution matches typical image-sensor dynamic range. The 1.8 V analog/digital supply keeps power low enough for portable camera modules, and the differential input rejects the common-mode noise from long sensor flex cables. A typical circuit places the ADC behind a low-noise op-amp driver (e.g. OPA2353) with a 2 Vpp differential swing; designers must add a dedicated 1.8 V LDO (e.g. TPS7A4700 family) for the AVDD/DRVDD pins to meet SNR budgets.
Được đề xuất
Standard-Definition Video Capture
For SDTV (480i/576i) capture and display paths the ADS5102IPFBR delivers the 27 MSPS clock headroom required for ITU-R BT.656 chroma decoding plus oversampling. The CMOS-compatible parallel outputs (1.8 V/3.3 V) connect directly to a video processor or FPGA without level translation, simplifying PCB routing. Compared to lower-speed ADCs, the ADS5102's 65 MSPS bandwidth also future-proofs the design for EDTV or progressive-scan sources. Expect ~58 dB SNR at full speed with a transformer-coupled differential input from the video amplifier.
Được đề xuất
Baseband I/Q Sampling in Wireless Receivers
The ADS5102IPFBR can directly sample baseband I and Q channels from a demodulator at rates up to 65 MSPS, supporting narrowband wireless receivers in the 5-25 MHz bandwidth range. Its differential input naturally pairs with the differential I/Q outputs of a quadrature demodulator, eliminating the need for a discrete I/Q demodulator at low IFs. Designers should use a clock source with sub-picosecond RMS jitter (e.g. CDCE906) and place a SAW filter before the ADC to limit out-of-band noise that would otherwise degrade SNR.
Được đề xuất
Portable Test and Measurement Instrumentation
Battery-powered oscilloscope and spectrum-analyzer front-ends use the ADS5102IPFBR to digitize signals up to ~32 MHz bandwidth while drawing low power from a 1.8 V rail. The power-down pin is critical for handheld instruments, dropping standby current to a few hundred microamps between captures to extend battery life. The 48-TQFP 7x7 mm footprint keeps the analog section compact, and the 10-bit resolution is sufficient for general-purpose oscilloscope vertical resolution beyond 8-bit units. Expect ~7 effective bits at 65 MSPS with a properly designed front-end.
Được đề xuất
Industrial Process Control Data Acquisition
In industrial data-acquisition modules the ADS5102IPFBR's -40C to +85C industrial temperature range and robust 1.8 V supply tolerance make it suitable for factory-floor digitizer boards. The 65 MSPS throughput handles multiplexed multi-channel scanning where each channel is sampled in rapid succession, or continuous high-speed logging of vibration and acoustic sensors. The internal reference option reduces BOM by eliminating an external reference IC. For long-term stability in noisy industrial environments, place an RC filter on the reference pin and use a shielded transformer on the analog input.
Được đề xuất
Set-Top Box and Video Capture Subsystems
Set-top box video capture paths digitize composite or component video streams at 27-54 MSPS, well within the ADS5102IPFBR's 65 MSPS ceiling. The internal reference and low-power 1.8 V operation match the tight thermal and power budgets of consumer STB enclosures. A typical board places the ADC between a video amplifier (e.g. OPA361) and a video processor SoC, with the CMOS outputs feeding a parallel data bus. Compared to ADCs requiring 3.3 V analog supplies, the ADS5102 simplifies power-tree design in single-supply STB platforms.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS5102IPFBR — 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 | ADS5102IPFB | ADS5102IPFBG4 | ADS5103IPFBR | ADS5102IPFBT | ADS5103IPFB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| 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 |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits | 10 bits |
| Sample Rate (max) | 65 MSPS | 65 MSPS | 65 MSPS | 40 MSPS | 65 MSPS | 40 MSPS |
| Analog Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Input Type | Differential | Differential | Differential | Differential | Differential | Differential |
| Reference | Internal/External | Internal/External | Internal/External | Internal/External | Internal/External | Internal/External |
| Power-Down Pin | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Single 1.8 V supply operation (vsADS5103IPFBR)
- 65 MSPS vs 40 MSPS speed grade (vsADS5103IPFBR)
- Differential input with internal reference (vsADS5102IPFBG4)
Ghi chú thiết kế
Use a dedicated low-noise 1.8 V LDO (e.g. TPS7A2010 or TPS7A4700 family) for the AVDD and DRVDD pins rather than sharing a switching regulator output. Estimated: at 65 MSPS the ADS5102 draws approximately 30-40 mA from each rail, so a 100 mA LDO provides ample headroom for transient response. Decouple each pin with a 0.1 uF X7R ceramic placed within 2 mm of the pin, plus a 10 uF bulk tantalum or ceramic at the supply entry point.
Route the analog input traces (INP, INM) as a 100 ohm differential pair with matched length to within 0.5 mm to preserve common-mode rejection at high frequencies. Keep the digital output bus (D0-D9, CLK, OE) on the opposite side of the package and never cross under the analog input traces; a 4-layer board with a continuous ground plane below the ADC is the recommended starting point per TI's ADS5102 datasheet typical-layout guidelines.
Clock jitter translates directly into SNR degradation for the ADS5102. Estimated: SNR (dB) = 10*log10(Vin_rms / (2*pi*Fin*tj)), so at 30 MHz input and 1 ps RMS jitter expect roughly 60 dB SNR. Use a clock driver like CDCE906 or SN65LVDS1 with sub-picosecond jitter, and place a series 33 ohm resistor at the ADC CLK pin to damp reflections if the trace exceeds 25 mm.
Do not float the PDN pin - tie it low through a 10 kohm resistor for normal operation, or drive it high during idle states to drop standby current below 1 mA per the datasheet. A common mistake is leaving the differential input biased at the wrong common-mode voltage; the VCM pin provides a mid-supply reference that should be bypassed with a 0.1 uF capacitor and used to bias the input op-amp driver output.
Thông tin tuân thủ
RoHS compliance confirmed by TI product page and DigiKey environmental attribute. Industrial temperature grade (not automotive/AEC-Q100).
