AD9680 Pin-to-Pin Replacement: GMS011 — 14-Bit Dual 1GSPS ADC with JESD204B
Measured SFDR 85 dBFS, SNR 65.3 dBFS — identical to AD9680 across all frequency bands. True drop-in replacement with no PCB redesign. Superb Automation provides validated sourcing + PCB fabrication + PCBA assembly for RF and high-speed data converter boards.
Superb Perspective: Why the AD9680 Needs a Domestic Alternative Now
If you work on radar signal processing, electronic warfare receivers, or 5G NR IF sampling, you know the AD9680. It is the industry benchmark for high-speed digitization — dual 14-bit channels at 1 GSPS, JESD204B serial output, and 2 GHz of analog input bandwidth. But procurement has become a real headache: lead times stretching past 20 weeks, volatile pricing, and unreliable allocation.
The GMS011 is a fully validated pin-to-pin replacement that eliminates these supply-chain bottlenecks. It drops directly into the AD9680 footprint — same package (QFN64, 9×9 mm), identical JESD204B lane configuration, matching power-supply rails. Superb Automation closes the loop: we source the GMS011, fabricate the high-speed PCB (controlled-impedance, low-loss laminate), assemble the board on our SMT lines, and run pre-delivery validation so you do not have to build a test setup from scratch.
Send your existing BOM and Gerber files — we identify the AD9680 footprint and review the PCB stackup
We procure GMS011 samples from verified domestic channels with full traceability
Quick-turn PCBA build (5–10 boards) on our SMT line for on-board validation
Test report: SFDR, SNR, ENOB, JESD204B eye diagram, power consumption — compared against AD9680 baseline
Validation passes → switch to volume production. Same PCB, same FPGA IP, same test fixtures.
Key Specifications: GMS011 vs. AD9680
| Parameter | GMS011 | AD9680 | Match |
|---|---|---|---|
| Resolution | 14-bit | 14-bit | Identical |
| Sampling Rate | 1 GSPS | 1 GSPS | Identical |
| Channels | 2 | 2 | Identical |
| Output Interface | JESD204B | JESD204B | Identical |
| Analog Bandwidth | 2 GHz | 2 GHz | Identical |
| Supply Voltages | 1.25V / 2.5V / 3.3V | 1.25V / 2.5V / 3.3V | Identical |
| Total Power | ≤3.8 W | 3.3 W | +15% |
| Package | QFN64 (9×9 mm) | 64-LFCSP (9×9 mm) | Compatible |
| Input Full-Scale | 1.4–1.7 Vp-p | 1.4–1.7 Vp-p | Identical |
Pin-to-pin verdict: Same pinout, same package footprint, same JESD204B lane mapping. No PCB layout changes required. The 0.5 W power delta is the only parameter that differs — well within the thermal margin of any competent design.
Measured Performance Data
SFDR — Spurious-Free Dynamic Range
| Input Frequency | GMS011 | AD9680 | Delta |
|---|---|---|---|
| 340 MHz | 85 dBFS | 85 dBFS | 0 dB |
| 1 GHz | 80 dBFS | 80 dBFS | 0 dB |
SNR — Signal-to-Noise Ratio
| Input Frequency | GMS011 | AD9680 | Delta |
|---|---|---|---|
| 340 MHz | 65.3 dBFS | 65.3 dBFS | 0 dB |
| 1 GHz | 60.5 dBFS | 60.5 dBFS | 0 dB |
Additional Dynamic Parameters
| Parameter | GMS011 | AD9680 |
|---|---|---|
| DNL | ±0.5 LSB | ±0.5 LSB |
| INL | ±2.5 LSB | ±2.5 LSB |
| ENOB @ 10 MHz | 10.8 bits | 10.8 bits |
| Noise Density @ 1 GSPS | -154 dBFS/Hz | -154 dBFS/Hz |
Migration Checklist — 6 Items to Verify
| # | Checkpoint | Guidance |
|---|---|---|
| 1 | Clock Source | Use the same low-jitter clock source as the original design. No change needed — both devices require<100 fs="" rms="" jitter="" for="" full="" 14-bit="" performance.=""> |
| 2 | Power Supply | Three-rail supply (1.25V / 2.5V / 3.3V) is identical. Verify ripple on each rail stays within ±5% under the ~15% higher current draw. Add margin on the 1.25V rail regulator. |
| 3 | PCB Layout | Pin-to-pin compatible — no PCB redesign required. The QFN64 footprint is identical. Superb can verify DFM on your existing Gerbers at no charge. |
| 4 | JESD204B Interface | Protocol-compatible. FPGA-side JESD204B IP core (Xilinx JESD204 PHY / Intel JESD204B IP) requires zero modification. Lane rate, scrambling, and SYNC sequence are identical. |
| 5 | Thermal Management | The 0.5 W delta is modest. If the original thermal solution has ≥20% margin, no changes are needed. For tightly constrained designs, verify junction temperature at maximum ambient. |
| 6 | On-Board Validation | Request GMS011 samples and run a side-by-side comparison in your specific system. Superb can build validation boards (PCB + PCBA) with both AD9680 and GMS011 footprints for A/B testing. |
Application Domains
Phased-Array Radar Electronic Warfare (ESM/ELINT) 5G NR IF Sampling Broadband SIGINT High-Speed Digitizers Satcom Ground Stations Test & Measurement Software-Defined Radio
Superb's PCB Expertise for High-Speed ADC Boards
A 1 GSPS ADC with JESD204B demands more than just the right chip. The PCB must handle multi-gigabit serial lanes with tight impedance control, low-loss laminate (Megtron 6 or TU-872 SLK), and careful power-plane partitioning to keep switching noise out of the analog front-end. Superb fabricates these boards in-house: 16–60 layers, controlled impedance ±5%, ENIG surface finish, and full TDR verification on every JESD204B lane before shipping. We do not just source the chip — we build the board it sits on, and we assemble it.
Supply Chain Advantages
Domestic stock availability — no 20-week lead times. GMS011 is sourced through verified domestic channels with stable allocation.
Samples available for evaluation — request engineering samples for side-by-side testing with your AD9680 baseline.
Reference design support — schematic review, FPGA JESD204B configuration guidance, and power-tree recommendations included.
Full traceability — every GMS011 batch is lot-tracked. Superb provides CoC documentation for every shipment.
FAQ
Q: Is the GMS011 truly a drop-in replacement for AD9680 — no PCB changes at all?
Yes. The GMS011 uses a QFN64 package with a 9×9 mm footprint identical to the AD9680's 64-LFCSP. Pinout, JESD204B lane assignments, power-supply rails, and analog input configuration are all identical. You can physically remove an AD9680 and solder a GMS011 onto the same board.
Q: Does the JESD204B interface require FPGA firmware changes?
No. The JESD204B protocol, lane rate, scrambling, and SYNC handshake are identical between the two devices. The FPGA-side IP core (Xilinx JESD204 PHY v4.1+ or Intel JESD204B IP) sees the same lane configuration and does not require any parameter changes.
Q: What about the 0.5 W higher power consumption?
The 15% power delta (3.8 W vs. 3.3 W) is well within the thermal design margin of most systems. If your existing design has at least 20% thermal headroom, no heatsink or airflow changes are needed. For tightly packaged designs, we recommend verifying junction temperature at worst-case ambient — Superb can include thermal imaging in our validation report.
Q: Can Superb handle the full migration — PCB, PCBA, and GMS011 sourcing?
Yes. We provide end-to-end service: source the GMS011 from verified domestic channels, fabricate the high-speed PCB (Megtron 6 / TU-872 SLK, impedance-controlled, ENIG finish), assemble the board on our SMT lines, and deliver a complete test report (SFDR, SNR, JESD204B eye diagram, thermal profile). One purchase order covers everything.
Q: How long does migration validation take?
For an existing AD9680 board design: 2–3 weeks from Gerber receipt to validated PCBA with test report. This includes PCB fabrication, GMS011 procurement, SMT assembly, and full RF performance characterization. Expedited service (10 business days) is available.
Send your BOM and Gerber files to pcba@superb-tech.com. Reference "AD9680/GMS011" for prioritized evaluation — we return a migration plan and quotation within 24 hours.
Superb Automation Co., Limited — From Design to Delivery. High-speed PCB fabrication, PCBA assembly, and trusted component sourcing for RF, radar, and telecommunications applications.
Performance data sourced from independent third-party characterization. Superb Automation is not an authorized distributor of Analog Devices or GMS011. We operate as a trusted supplier, sourcing from verified channels with full lot traceability and 100% genuine guarantee.
