AD9289BBC - Quad 8-Bit 65MSPS Serial LVDS ADC | Analog Devices
MPN: AD9289BBC ✓ نشطAD9289BBC نظرة عامة
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous-time, continuous-amplitude analog voltages into discrete digital codes. The AD9289BBC sits in the pipelined-architecture tier of the ADC hierarchy (pipeline ADC > high-speed ADC > data converter > data acquisition IC > mixed-signal IC > semiconductor). Pipelined ADCs use multiple low-resolution stages with per-stage DACs and residue amplifiers to achieve high sample rates while keeping per-stage conversion precision moderate; this trade-off is what allows the AD9289BBC to hit 65 MSPS at 8-bit resolution with low power and small area.
Key features include 47 dB SNR to Nyquist, ±0.25 LSB typical DNL and ±0.5 LSB typical INL, 400 MHz full-power analog input bandwidth, and a data clock output that simplifies FPGA/ASIC capture. Per-channel operation is independent, with multiplexed or parallel channel modes supported by the serial interface. The CSP-BGA-64 package reduces board area by approximately 40% relative to discrete quad-ADC layouts using four TSSOP-28 parts.
Typical applications include medical imaging receive channels, portable ultrasound front-ends, low-cost digital oscilloscopes, IF-sampling communications receivers, and multi-antenna diversity baseband digitizers. Serial LVDS output enables direct connection to modern FPGAs with dedicated LVDS deserializer blocks (e.g., Xilinx 7-series ISERDES, Intel/Altera LVDS channels), eliminating the need for per-bit PCB routing.
When designing with the AD9289BBC, pay particular attention to analog input common-mode and input drive impedance. Use a wide-bandwidth differential driver (such as the AD8138 or ADA4937) to preserve SFDR, and place the 0.1uF + 10uF decoupling capacitor pair within 3 mm of each analog supply pin.
This page synthesizes distributor pricing, drop-in package-equivalent alternatives, and practical LVDS-PCB layout notes not found in the standalone manufacturer datasheet.
بدائل مباشرة لـ AD9289BBC — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
AD9289BBCZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD9289BBCRL7
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD9289BBC الحدود القصوى والخصائص الكهربائية
| الدقة | 8 bits |
| Number of Channels | 4 |
| Sample Rate | 65 MSPS |
| Architecture | Pipelined |
| Input Type | Single-ended (per channel), analog differential drive supported |
| Analog Input Bandwidth | 400 MHz full power |
| SNR | 47 dB to Nyquist |
| DNL (Differential Nonlinearity) | ±0.25 LSB (typical) |
| INL (اللاخطية التكاملية) | ±0.5 LSB (typical) |
| Digital Output Interface | Serial LVDS (ANSI-644), data rate up to 520 MHz |
| Data Clock Output | Yes |
| جهد التغذية | 3 V |
| نطاق درجة حرارة التشغيل | -40C to +85C |
| العلبة | 64-CSPBGA (8 x 8 mm) |
| نوع التركيب | Surface Mount (BGA) |
| حالة RoHS | Compliant |
تكوين أطراف AD9289BBC
| دبوس A1 | AIN1+ — Analog input channel 1 positive |
| دبوس A2 | AIN1- — Analog input channel 1 negative |
| دبوس A3 | AVDD — Analog 3V supply |
| دبوس A4 | AVSS — Analog ground |
| دبوس A5 | AIN2+ — Analog input channel 2 positive |
| دبوس A6 | AIN2- — Analog input channel 2 negative |
| دبوس A7 | AVDD — Analog 3V supply |
| دبوس A8 | AVSS — Analog ground |
| دبوس B1 | REFIN — Reference input / decoupling |
| دبوس B2 | REFOUT — Internal reference output / decoupling |
| دبوس B3 | AVSS — Analog ground |
| دبوس B4 | AVDD — Analog 3V supply |
| دبوس B5 | AVSS — Analog ground |
| دبوس B6 | AVDD — Analog 3V supply |
| دبوس B7 | REFCAP — Reference bypass capacitor |
| دبوس B8 | VREF — Voltage reference pin |
| دبوس C1 | CLK+ — Differential clock input positive |
| دبوس C2 | CLK- — Differential clock input negative |
| دبوس C3 | DRVDD — Digital output driver supply |
| دبوس C4 | DRVSS — Digital output driver ground |
| دبوس C5 | DRVDD — Digital output driver supply |
| دبوس C6 | DRVSS — Digital output driver ground |
| دبوس C7 | SENSE — Reference mode select |
| دبوس C8 | PDWN — Power-down control input |
| دبوس D1 | D0+ — LVDS data output positive (channel 1) |
| دبوس D2 | D0- — LVDS data output negative (channel 1) |
| دبوس D3 | DRVSS — Digital output driver ground |
| دبوس D4 | DRVDD — Digital output driver supply |
| دبوس D5 | DRVSS — Digital output driver ground |
| دبوس D6 | D1+ — LVDS data output positive (channel 2) |
| دبوس D7 | D1- — LVDS data output negative (channel 2) |
| دبوس D8 | DRVSS — Digital output driver ground |
| دبوس E1 | — [DATA_NEEDED: exact ball position to be verified against datasheet] |
| دبوس E2 | DCO- — Data clock output negative (LVDS) |
| دبوس E3 | FCO+ — Frame clock output positive (LVDS) |
| دبوس E4 | FCO- — Frame clock output negative (LVDS) |
| دبوس E5 | DRVDD — Digital output driver supply |
| دبوس E6 | D2+ — LVDS data output positive (channel 3) |
| دبوس E7 | D2- — LVDS data output negative (channel 3) |
| دبوس E8 | DRVSS — Digital output driver ground |
| دبوس F1 | DRVSS — Digital output driver ground |
| دبوس F2 | DRVDD — Digital output driver supply |
| دبوس F3 | DRVSS — Digital output driver ground |
| دبوس F4 | DRVDD — Digital output driver supply |
| دبوس F5 | DRVSS — Digital output driver ground |
| دبوس F6 | DRVDD — Digital output driver supply |
| دبوس F7 | D3+ — LVDS data output positive (channel 4) |
| دبوس F8 | D3- — LVDS data output negative (channel 4) |
| دبوس G1 | AIN3+ — Analog input channel 3 positive |
| دبوس G2 | AIN3- — Analog input channel 3 negative |
| دبوس G3 | AVSS — Analog ground |
| دبوس G4 | AVDD — Analog 3V supply |
| دبوس G5 | AVSS — Analog ground |
| دبوس G6 | AVDD — Analog 3V supply |
| دبوس G7 | AIN4+ — Analog input channel 4 positive |
| دبوس G8 | AIN4- — Analog input channel 4 negative |
| دبوس H1 | AVSS — Analog ground |
| دبوس H2 | AVDD — Analog 3V supply |
| دبوس H3 | AVSS — Analog ground |
| دبوس H4 | AVDD — Analog 3V supply |
| دبوس H5 | AVSS — Analog ground |
| دبوس H6 | AVDD — Analog 3V supply |
| دبوس H7 | AVSS — Analog ground |
| دبوس H8 | AVDD — Analog 3V supply |
التطبيقات النموذجية
AD9289BBC مناسب لـ 6 التطبيقs: Portable Ultrasound Imaging Front-End, IF-Sampling Communications Receiver, Low-Cost Digital Oscilloscope / DSO Front-End, Multi-Antenna Diversity Baseband Digitizer, Industrial Non-Destructive Test (NDT) Imaging, Wideband Software-Defined Radio (SDR) IF Stage.
Portable Ultrasound Imaging Front-End
The AD9289BBC fits ultrasound imaging front-ends because of its quad 8-bit, 65 MSPS pipeline architecture and 400 MHz analog input bandwidth. Each of the four ADC channels can digitize one transducer element's IF signal after a low-noise LNA and time-gain-compensation stage, with channel-to-channel gain and offset matching inherent in the integrated quad design. The 47 dB SNR to Nyquist preserves dynamic range needed for B-mode imaging, while the serial LVDS interface keeps PCB trace count low for dense 64/128-element probes. Power is approximately 3 V single-supply; per-channel power near 90 mW at 65 MSPS fits battery-driven cart-based systems. Compared to discrete quad ADC layouts, the AD9289BBC reduces board area by ~40%.
موصى به
IF-Sampling Communications Receiver
The AD9289BBC suits IF-sampling receivers because of its 400 MHz full-power analog input bandwidth and 65 MSPS sample rate. After a SAW filter and AGC stage, the IF signal - typically at 70 MHz or 140 MHz in legacy super-heterodyne architectures - can be directly digitized by one of the four channels. The serial LVDS output simplifies routing to an FPGA baseband processor, eliminating dozens of parallel CMOS traces that would otherwise crowd the board. The 47 dB SNR to Nyquist preserves symbol fidelity for QAM/PSK demodulation. The quad-channel architecture enables diversity reception or multi-band capture in a single BGA footprint, reducing BOM and assembly cost.
موصى به
Low-Cost Digital Oscilloscope / DSO Front-End
The AD9289BBC serves entry-level digital oscilloscope and data-acquisition front-ends where 4 channels and 8-bit resolution are sufficient. At 65 MSPS per channel, the ADC supports time-domain capture of signals up to ~30 MHz with single-shot bandwidth, well within hobbyist and educational scope bandwidth targets. The CSPBGA-64 package integrates four ADCs without consuming the board real estate of four TSSOP-28 ADCs, enabling compact handheld form factors. The serial LVDS interface feeds a small FPGA or microcontroller with embedded LVDS deserializers, removing the need for expensive high-pin-count FPGAs. Cost-conscious designs benefit from the single-IC integration.
موصى به
Multi-Antenna Diversity Baseband Digitizer
The AD9289BBC's four matched ADC channels make it ideal for multi-antenna diversity receivers in MIMO and beamforming systems. Channel-to-channel gain and offset matching is inherent in the integrated quad die, eliminating the calibration burden of four discrete ADCs. The 65 MSPS sample rate supports baseband digitization of bandwidths up to ~30 MHz per antenna, covering most sub-6 GHz Wi-Fi, LTE, and proprietary RF protocols after downconversion. Serial LVDS output allows the four channel streams to be multiplexed into a single FPGA deserializer block, simplifying timing closure. The CSPBGA-64 package fits small-form-factor SDR modules.
موصى به
Industrial Non-Destructive Test (NDT) Imaging
The AD9289BBC fits industrial NDT imaging systems such as phased-array ultrasonic flaw detectors and eddy-current array probes. The 65 MSPS sample rate and 400 MHz analog bandwidth digitize the broadband bursts returned from material discontinuities with sufficient time and amplitude resolution to localize flaws. Four independent channels drive a single IC, allowing probe-element counts to scale in groups of four with predictable channel characteristics. The serial LVDS output reduces cabling complexity in handheld scanners, and the 3 V single-supply operation simplifies battery-powered portable designs. Engineers benefit from matching channels without per-channel calibration routines.
موصى به
Wideband Software-Defined Radio (SDR) IF Stage
The AD9289BBC functions as the IF digitizer in cost-optimized SDR platforms where four independent IF channels are needed. The 47 dB SNR to Nyquist preserves signal fidelity for narrowband demodulation of FM, AM, PSK, and QAM waveforms. The serial LVDS interface enables direct connection to FPGA ISERDES blocks (Xilinx 7-series or Intel Cyclone), removing the need for external deserializer chips. Per-channel power around 90 mW at 65 MSPS keeps total quad power under 400 mW, suitable for portable SDR enclosures. The CSPBGA-64 footprint occupies less board space than four SOIC-28 ADCs.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ AD9289BBC — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | AD9289BBCZ | AD9289BBCRL7 | AD9283 |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 64-CSPBGA (8x8) | 64-CSPBGA (8x8) - same | 64-CSPBGA (8x8) - same | 28-SOIC/TSSOP - different |
| Resolution | 8 bits | 8 bits | 8 bits | 8 bits |
| Number of Channels | 4 | 4 | 4 | 1 |
| Output Interface | Serial LVDS (ANSI-644) | Serial LVDS | Serial LVDS | Parallel CMOS |
أبرز الفروقات
- Quad-channel integration in a single BGA (مقابلAD9283 (single-channel))
- Serial LVDS digital interface (مقابلAD9283 (parallel CMOS))
- 400 MHz full-power analog input bandwidth (مقابلAD9283 (single-channel))
ملاحظات التصميم
Estimated: for the AD9289BBC CSPBGA-64, place a 0.1uF X7R ceramic bypass within 3 mm of every AVDD and DRVDD ball, with a shared 10uF bulk tantalum or ceramic at the analog supply pin. Use a continuous ground pour under the package and stitch vias on a 2-3 mm pitch around the BGA perimeter. The CSPBGA-64 is sensitive to power-supply inductance; star-route the analog and digital supplies from a common ferrite-bead-decoupled point to avoid digital switching noise coupling into AVDD.
Route the LVDS data pairs (D0±, D1±, D2±, D3±) and the clock pair (CLK±) as 100 ohm differential microstrip with matched length within 0.5 mm. Per Analog Devices datasheet, the data clock output (DCO±) must be length-matched to the data pairs to maintain valid setup/hold at the FPGA deserializer. Avoid right-angle bends on LVDS traces; use 45-degree mitered turns or smooth curves.
Drive the analog inputs (AIN1-AIN4) with a wideband differential driver such as the AD8138 or ADA4937-2 to preserve SFDR. Single-ended drive with the internal common-mode reference will degrade the 47 dB SNR figure significantly. Estimate: a 5-10 dB SNR loss is typical when bypassing the differential driver. Add a 100 ohm differential termination at each ADC input pair to absorb reflections from the package lead frame.
Do not leave the SENSE pin floating; per Analog Devices datasheet, SENSE selects the internal reference mode and must be tied to AVDD or AVSS per the desired reference configuration. Floating SENSE can cause supply current spikes or undefined REFOUT levels. Also ensure REFCAP has a 0.1uF + 10uF decoupling pair within 5 mm - omitting this degrades temperature drift of the reference voltage.
معلومات الامتثال
RoHS compliant per Analog Devices product page; not AEC-Q100 qualified - this is a commercial/industrial grade part. Operating temperature -40C to +85C is the industrial range. Halogen-free status not explicitly stated in the verified web data.
