AD9609XCPZ-80 - 10-Bit 80 MSPS 1.8V ADC | Analog Devices
MPN: AD9609XCPZ-80 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.05 | $130.50 |
| 100 | $11.4 | $1,140.00 |
| 500 | $9.95 | $4,975.00 |
| 1,000 | $8.85 | $8,850.00 |
AD9609XCPZ-80 Overview
What is a high-speed pipeline ADC? A 10-bit 80 MSPS ADC converts analog baseband or IF signals into 10-bit digital words at up to 80 million samples per second. In the broader taxonomy, the AD9609 sits at: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor. It typically follows an anti-alias filter and front-end amplifier, and feeds an FPGA, ASIC, or DSP for downstream demodulation, FFT, or beamforming.
Key features include an integrated high-performance sample-and-hold circuit, on-chip voltage reference, 1.8 V analog and digital supply, LVCMOS-compatible outputs, and a flexible serial port (SPI) for mode configuration. The ADC core uses a pipelined multi-stage architecture with output error correction, delivering 10-bit linearity across the rated operating conditions. An optional on-chip reference simplifies board design, while an external reference mode allows system-level gain and drift optimization.
The 32-lead LFCSP (5x5 mm) package is footprint-compatible with the AD9629 (12-bit) and AD9649 (14-bit) ADC families from Analog Devices. This pin compatibility enables a migration path from 10-bit to 12-bit or 14-bit resolution and across 20-80 MSPS speed grades without PCB rework, which is valuable for platforms that must scale dynamic range or sample rate by software/firmware decision rather than hardware spin.
Typical applications include communications IF sampling, low-cost oscilloscope and instrumentation front-ends, handheld spectrum analyzers, ultrasound imaging receive paths, and consumer broadband receivers. In each case the AD9609XCPZ-80's combination of low power, small footprint, and pin-compatibility with higher-resolution ADI converters makes it a flexible choice for cost-sensitive multi-product platforms.
When designing with this ADC, treat the analog input as a 50 ohm differential pair and AC-couple into the internal sample-and-hold. Use a low-jitter clock driver; SNR degrades roughly 20 dB per decade of clock jitter at 80 MSPS, so any budget for SNR > 55 dBFS requires < 1 ps RMS jitter. Decouple AVDD/DRVDD close to each pin with 100 nF + 10 uF, and keep the analog/digital ground returns separated under the exposed pad.
This page synthesizes distributor pricing, cross-reference substitutes, application context, and design notes that complement the manufacturer datasheet rather than repeat it. The intent is to accelerate part selection, schematic capture, and PCB layout decisions for engineers evaluating the AD9609XCPZ-80 against alternatives.
Drop-in alternatives for AD9609XCPZ-80 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD9609XCPZ-65
✅ Drop-In📋 Reference alternative (not in catalog)
AD9629XCPZ-80
✅ Drop-In📋 Reference alternative (not in catalog)
AD9649XCPZ-80
✅ Drop-In📋 Reference alternative (not in catalog)
AD9609XCPZ-40
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →AD9609XCPZ-20
✅ Drop-In📋 Reference alternative (not in catalog)
AD9609XCPZ-80 Maximum Ratings & Electrical Characteristics
| Number of Channels | 1 |
| Resolution | 10 bit |
| Sample Rate (Grade) | 80 MSPS (this grade); family supports 20/40/65/80 MSPS |
| Analog Supply Voltage (AVDD) | 1.8 V |
| Digital Supply Voltage (DRVDD) | 1.8 V (LVCMOS outputs) |
| Input Type | Differential analog input |
| Architecture | Pipelined multi-stage with output error correction |
| Sample-and-Hold | On-chip high-performance T/H |
| Voltage Reference | On-chip (external reference option) |
| Digital Output Interface | LVCMOS, parallel |
| Configuration Interface | Serial (SPI-compatible) |
| Package | 32-lead LFCSP (5x5 mm) with exposed pad |
| Pin Compatibility | Footprint-compatible with AD9629 (12-bit) and AD9649 (14-bit) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD9609XCPZ-80 32-lead lfcsp (5x5 mm) with exposed pad Pin Configuration Guide
Pin configuration for AD9609XCPZ-80 (32-lead lfcsp (5x5 mm) with exposed pad package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for AD9609XCPZ-80.
Refer to the datasheet for full pin configuration.
Typical Applications
AD9609XCPZ-80 is suitable for 6 applications: Communications IF Sampling, Low-Cost Oscilloscope / Instrumentation Front-End, Handheld Spectrum Analyzer / Signal Analyzer, Ultrasound Imaging Receive Path, Consumer Broadband Receiver / SDR, Industrial Process Control Data Acquisition.
Communications IF Sampling
The AD9609XCPZ-80's 10-bit resolution at 80 MSPS is well matched to intermediate-frequency sampling of narrowband and wideband communication receivers, where the input is centered at 10-30 MHz IF. In a typical superheterodyne chain, the ADC follows a SAW filter and AGC stage, sampling directly into the FPGA for digital down-conversion. The 1.8 V supply and small 5x5 mm LFCSP footprint ease integration into miniaturized radio modules, while the differential analog input rejects common-mode noise from the IF amplifier. Compared to 12-bit ADCs, the AD9609XCPZ-80 sacrifices ~4 dB of SNR but consumes roughly 30% less power at the same clock rate, a useful trade-off in remote radio units and small-cell base stations where thermal budget is tight.
Recommended
Low-Cost Oscilloscope / Instrumentation Front-End
In handheld and benchtop oscilloscopes targeting <50 MHz analog bandwidth, the AD9609XCPZ-80 provides a 10-bit, 80 MSPS front end that delivers 8 ENOB at full Nyquist with the proper anti-alias filter. Its 32-lead LFCSP footprint fits alongside an FPGA and a high-isolation analog front-end (AFE) op-amp chain. The on-chip voltage reference and sample-and-hold reduce external BOM count, which is critical in cost-sensitive 2-channel DSO designs where BOM cost dominates. With < 1 ps RMS clock jitter budget, the ADC achieves ~55 dBFS SNR, sufficient for general-purpose waveform capture. The AD9609's pin compatibility with the AD9629/AD9649 lets a manufacturer ship the same PCB at 10-bit, 12-bit, or 14-bit performance tiers using only a BOM change.
Recommended
Handheld Spectrum Analyzer / Signal Analyzer
Handheld spectrum analyzers in the 6-9 kHz to 1-3 GHz range require an IF sampling ADC that balances cost, power, and dynamic range. The AD9609XCPZ-80's 10-bit, 80 MSPS performance supports an instantaneous IF bandwidth of up to 30 MHz when paired with an FFT engine in the FPGA, which is adequate for many field-service RF measurement tasks. The small 5x5 mm LFCSP footprint is ideal for densely populated handheld PCBs where every square millimeter is budgeted. Its 1.8 V operation helps the analyzer meet battery-run-time targets, and the SPI configuration port lets the MCU adjust internal bias modes to trade noise for power based on user-selected resolution-bandwidth settings.
Recommended
Ultrasound Imaging Receive Path
In portable and mid-range ultrasound imaging systems, the receive channel often requires an ADC per transducer element or per small sub-array. The AD9609XCPZ-80's combination of 10-bit resolution, 80 MSPS sample rate, and 32-lead LFCSP (5x5 mm) footprint makes it well suited to multi-channel receive boards where many ADCs must fit in a small area. At 80 MSPS the ADC provides enough oversampling to relax the analog anti-alias filter in front of the beamformer. Its 1.8 V supply simplifies power-tree design in battery-powered cart-based ultrasound, and the pin-compatibility with the 12-bit AD9629 lets designers migrate to higher resolution for premium platforms on the same PCB artwork.
Recommended
Consumer Broadband Receiver / SDR
Software-defined radio platforms for consumer broadband, FM HD Radio, DAB, and DVB-T receivers often need a moderate-resolution ADC that samples an IF around 30-40 MHz. The AD9609XCPZ-80 supports this scenario with 10-bit dynamic range at 80 MSPS, sufficient to demodulate multi-carrier signals with acceptable bit-error rate. Its 1.8 V supply simplifies integration with modern FPGA/SoC digital rails, and the small LFCSP-32 (5x5 mm) keeps the BOM footprint compact for USB-stick or set-top-box form factors. The pin compatibility with the AD9649 (14-bit) also enables a product line that spans low-cost 10-bit and high-tier 14-bit receivers on the same hardware platform.
Recommended
Industrial Process Control Data Acquisition
Multi-channel data acquisition modules for industrial vibration, acoustic emission, and machine-health monitoring often oversample signals at 50-80 kSPS per channel but require occasional high-speed bursts for transient capture. The AD9609XCPZ-80 provides 80 MSPS throughput that supports both continuous low-rate streaming and triggered high-rate burst capture in a single converter. The 32-lead LFCSP footprint allows dense PCB layouts for compact DIN-rail mounted modules, and the 1.8 V supply aligns with low-power MCU rails. The pin compatibility with the AD9629/AD9649 supports product-line scalability from 10-bit to 14-bit versions without altering the carrier board, simplifying inventory and BOM management for industrial OEMs.
Recommended
Recommended Products Summary
Engineering reference data for AD9609XCPZ-80 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD9609XCPZ-65 | AD9629XCPZ-80 | AD9649XCPZ-80 | AD9609XCPZ-40 | AD9609XCPZ-20 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 32-lead LFCSP (5x5 mm) | 32-lead LFCSP (5x5 mm) - same | 32-lead LFCSP (5x5 mm) - same | 32-lead LFCSP (5x5 mm) - same | 32-lead LFCSP (5x5 mm) - same | 32-lead LFCSP (5x5 mm) - same |
| Resolution | 10 bit | 10 bit | 12 bit | 14 bit | 10 bit | 10 bit |
| Sample Rate | 80 MSPS | 65 MSPS | 80 MSPS | 80 MSPS | 40 MSPS | 20 MSPS |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Pin Compatibility with AD9609XCPZ-80 | N/A (reference part) | Yes - drop-in (lower speed) | Yes - drop-in (higher resolution) | Yes - drop-in (higher resolution) | Yes - drop-in (lower speed) | Yes - drop-in (lower speed) |
| Architecture | Pipelined multi-stage | Pipelined multi-stage | Pipelined multi-stage | Pipelined multi-stage | Pipelined multi-stage | Pipelined multi-stage |
Key Differentiators
- Pin-compatible upgrade path to 12-bit and 14-bit (vs AD9629XCPZ-80 (12-bit) and AD9649XCPZ-80 (14-bit))
- Highest sample rate in the AD9609 family (vs AD9609XCPZ-65 (65 MSPS grade))
- Lowest cost in 80 MSPS LFCSP-32 ADI ADC tier (vs AD9649XCPZ-80 (14-bit at 80 MSPS))
Design Notes
Estimated: the AD9609XCPZ-80 derives AVDD and DRVDD from a common 1.8 V source. Place a 100 nF X7R ceramic bypass within 2 mm of each supply pin, plus a single 10 uF bulk capacitor shared by the analog rail. Add a ferrite bead between the analog and digital 1.8 V domains to suppress digital switching noise coupling into the analog front-end. The exposed pad must be soldered to a low-impedance ground plane to provide both thermal relief and a clean digital return path. Source: Analog Devices AD9609 datasheet decoupling recommendations.
Route the differential analog input traces as a tightly-coupled 100 ohm differential pair from the upstream AFE amplifier into the ADC inputs. Keep digital outputs (D0-D9, DRDY, OTR) away from the analog input and clock traces to avoid digital coupling. The ADC sample clock (CLK+/CLK-) must be routed as a 100 ohm differential pair and length-matched to the analog inputs to minimize aperture-delay mismatch. Place the clock driver within 25 mm of the ADC. Source: Analog Devices AD9609 datasheet layout guidelines.
Estimated: SNR at 80 MSPS degrades by approximately 20*log10(2*pi*F_IN*TJITTER) dB. For a 30 MHz IF input and a 58 dBFS SNR target, the total sample-clock jitter must stay below 1.2 ps RMS. Use an AD9516-class low-jitter clock synthesizer and avoid distributing the clock through long traces or FPGA fabrics. Source: standard ADC jitter-SNR formula referenced in Analog Devices AN-756 and the AD9609 datasheet.
Estimated: the most common design errors observed with the AD9609XCPZ-80 are (1) failing to solder the exposed pad, which raises junction temperature and degrades linearity; (2) using a single-ended clock instead of the differential CLK+/CLK- input, which adds ~3 dB of jitter; (3) omitting the SPI configuration of internal register defaults, leaving the device in factory-test mode. Verify SPI communication during bring-up by reading back a known register value before issuing the full configuration sequence. Source: Analog Devices AD9609 datasheet SPI section.
Compliance Information
RoHS and lead-free per Analog Devices product page and DigiKey listing. Not AEC-Q100 qualified - this part targets communications and instrumentation, not automotive. Halogen-free per standard ADI LFCSP product family policy.
