AD9609XCPZ-40 - 10-Bit 40 MSPS ADC, 1.8V, LFCSP-32 | ADI
MPN: AD9609XCPZ-40 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.5 | $9.50 |
| 10 | $8.55 | $85.50 |
| 100 | $7.2 | $720.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.4 | $5,400.00 |
AD9609XCPZ-40 Overview
An ADC (analog-to-digital converter) is a data acquisition component that converts continuous-time continuous-amplitude analog signals into discrete-time discrete-amplitude digital codes. Within the broader signal chain hierarchy, the AD9609 occupies the analog-to-digital conversion stage between front-end analog conditioning (amplifiers, filters) and downstream digital processing (FPGAs, microcontrollers, DSPs). The 10-bit resolution places it in the mid-resolution tier—above 8-bit general-purpose converters but below 12/14/16-bit precision ADCs—making it well suited to communications, IF sampling, handheld instrumentation, and cost-sensitive imaging systems.
Key differentiating features of the AD9609XCPZ-40 include a wide-input-bandwidth differential sample-and-hold, internal 1.0 V reference (with external override option), CMOS-compatible digital outputs, and a multi-stage differential pipeline architecture that delivers low power dissipation at the 40 MSPS grade. The on-chip reference eliminates the need for an external precision reference, reducing BOM count and PCB footprint.
Typical applications include communications IF sampling, handheld portable oscilloscopes and instrumentation, ultrasound and medical imaging signal paths, and low-cost industrial data acquisition. The single-channel 1.8 V architecture makes it attractive for battery- or USB-powered designs where low power and small package size are critical.
When designing with the AD9609XCPZ-40, decouple the analog AVDD and digital DRVDD rails separately with 0.1 µF ceramic capacitors placed as close to the pins as possible, and use a single ground plane if multi-layer PCB constraints allow. The exposed pad (EP) of the LFCSP-32 must be soldered to the ground plane for thermal dissipation and electrical reference.
This page synthesizes real-time distributor pricing, drop-in alternatives within the AD9609 family and from competing vendors, and practical design notes drawn from the Analog Devices AD9609 datasheet in one structured view.
Drop-in alternatives for AD9609XCPZ-40 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD9609XCPZ-40 (same form factor and footprint) — differing in Package, Input Type, Operating Temperature Range, Reference, Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD9609XCPZ-20
✅ Drop-In📋 Reference alternative (not in catalog)
AD9609BCPZ-65
✅ Drop-In📋 Reference alternative (not in catalog)
AD9609BCPZ-80
✅ Drop-In✓ In Stock
$10.4 / Unit
View Datasheet →AD9237BCPZ-20
✅ Drop-In✓ In Stock
$9.85 / Unit
View Datasheet →AD9609XCPZ-40 Maximum Ratings & Electrical Characteristics
| Resolution | 10 bits |
| Sample Rate (Speed Grade) | 40 MSPS |
| Number of Channels | 1 |
| Supply Voltage (Analog) | 1.8 V |
| Architecture | Multi-stage differential pipeline |
| Input Type | Differential |
| Reference | Internal 1.0 V (external override option) |
| Digital Output Interface | CMOS, parallel |
| Operating Temperature Range | -40 C to +85 C (industrial, per ADI product family) |
| Package | 32-LFCSP (5 mm x 5 mm) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 3 (per JEDEC J-STD-020, reflow at 260 C) |
| Family | AD9609 (20/40/65/80 MSPS speed grades) |
AD9609XCPZ-40 32-lfcsp (5 mm x 5 mm) with exposed pad Pin Configuration Guide
Pin configuration for AD9609XCPZ-40 (32-lfcsp (5 mm x 5 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-40.
Refer to the datasheet for full pin configuration.
Typical Applications
AD9609XCPZ-40 is suitable for 6 applications: Communications IF Sampling, Handheld Portable Instrumentation, Ultrasound and Medical Imaging Signal Path, Industrial Data Acquisition Systems, Low-Cost Imaging and Camera Systems, Software-Defined Radio (SDR) Front End.
Communications IF Sampling
The AD9609XCPZ-40 is widely used as an intermediate-frequency (IF) sampler in narrowband communications receivers where 40 MSPS capture bandwidth and 10-bit resolution are sufficient. The 1.8 V supply makes it attractive for low-power radio designs, while the internal 1.0 V reference eliminates external reference components and shrinks the RF signal chain BOM. With a wide-input-bandwidth sample-and-hold and differential analog inputs, it directly digitizes an IF output stage (e.g., 10.7 MHz IF or 21.4 MHz IF for GSM/WCDMA base stations) without an additional downconversion stage. The 10-bit dynamic range is adequate for EVM-driven demodulation in cost-sensitive point-to-point and infrastructure links. Designers place the device downstream of a SAW filter or anti-alias LPF, then connect the parallel CMOS outputs directly to an FPGA for in-system digital downconversion.
Recommended
Handheld Portable Instrumentation
For handheld oscilloscopes, data loggers, and field-portable test equipment, the AD9609XCPZ-40 offers an attractive combination of 40 MSPS capture, 1.8 V low-power operation, and a compact 32-LFCSP (5 mm x 5 mm) footprint that fits dense handheld layouts. The 10-bit resolution aligns with the display vertical resolution of most low-cost oscilloscope front-ends, and the on-chip voltage reference removes a sensitive analog component that would otherwise need extra board area. The exposed thermal pad of the LFCSP package supports battery-powered operation by ensuring heat is dissipated into the PCB ground plane, avoiding the need for a heatsink in a sealed enclosure. Typical signal conditioning chains place the AD9609XCPZ-40 after a programmable-gain amplifier and input protection, with FPGA-based triggering downstream.
Recommended
Ultrasound and Medical Imaging Signal Path
The AD9609XCPZ-40 serves as an analog-to-digital conversion stage in lower-end ultrasound and medical imaging front-ends where 10-bit resolution at 40 MSPS is adequate for B-mode and Doppler signal acquisition. The integrated sample-and-hold circuit cleanly captures pre-beamformed or post-beamformed RF signals from the transducer chain, while the 1.8 V supply enables compact, low-thermal-dissipation designs required for handheld ultrasound probes. The 32-LFCSP package footprint supports dense multi-channel array boards by allowing several ADCs to be placed in close proximity with shared ground reference through their exposed pads. Designers typically use the AD9609XCPZ-40 for low-tier portable imaging systems where the resolution trade-off is acceptable; higher-end systems requiring 12-14 bit precision migrate to the AD9251 or AD9644 families.
Recommended
Industrial Data Acquisition Systems
Industrial data acquisition and process control systems frequently use the AD9609XCPZ-40 to digitize transducer outputs at sampling rates up to 40 MSPS in a compact low-power form factor. The 1.8 V analog supply and CMOS digital outputs integrate cleanly into mixed-voltage industrial backplanes, while the differential analog inputs reject common-mode noise typically present on long factory cabling. The internal voltage reference and multi-stage pipeline architecture minimize external component count, which is critical for cost-sensitive industrial PLC and sensor-hub designs. The 32-LFCSP package is suitable for both surface-mount production lines and the high-vibration industrial environment when the EP is properly soldered to the ground plane.
Recommended
Low-Cost Imaging and Camera Systems
Low-cost industrial camera and machine-vision subsystems leverage the AD9609XCPZ-40 for digitizing analog video signals such as NTSC/PAL composite or component RGB at sample rates compatible with the video bandwidth. The 40 MSPS throughput comfortably exceeds the 13.5 MSPS required for standard-definition video and the 27 MSPS required for 720p HD video, providing headroom for oversampling techniques that improve SNR. The 10-bit resolution matches consumer-grade display panels and is sufficient for general-purpose machine-vision preprocessing. The 1.8 V operation and small LFCSP package enable compact camera module designs where board area is at a premium.
Recommended
Software-Defined Radio (SDR) Front End
Software-defined radio designs use the AD9609XCPZ-40 to sample IF or low-RF analog signals directly into the digital domain for downstream DSP and demodulation in software. The 40 MSPS sampling rate and 10-bit resolution align with sub-GHz SDR applications such as ham radio, low-band telemetry, and direct-conversion amateur receivers where signal bandwidths below 20 MHz are common. The differential analog inputs reject common-mode noise from the antenna and mixer stages, while the parallel CMOS outputs feed directly into an FPGA implementing digital filters, mixers, and demodulators. The 1.8 V supply simplifies power-tree design in battery-powered portable SDR radios, and the 32-LFCSP package supports multi-board stacked architectures used in modular SDR kits.
Recommended
Recommended Products Summary
Engineering reference data for AD9609XCPZ-40 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD9609XCPZ-20 | AD9609BCPZ-65 | AD9609BCPZ-80 | AD9237BCPZ-20 |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 32-LFCSP (5x5) | 32-LFCSP (5x5) - same | 32-LFCSP (5x5) - same | 32-LFCSP (5x5) - same | 32-LFCSP - same family |
| Resolution | 10 bits | 10 bits | 10 bits | 10 bits | 12 bits |
| Sample Rate | 40 MSPS | 20 MSPS | 65 MSPS | 80 MSPS | 20 MSPS |
| Number of Channels | 1 | 1 | 1 | 1 | 1 |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 3.0 V |
| Internal Reference | Yes (1.0 V) | Yes | Yes | Yes | Yes |
| Digital Output | CMOS parallel | CMOS parallel | CMOS parallel | CMOS parallel | CMOS parallel |
Key Differentiators
- On-chip voltage reference simplifies BOM (vs AD9608 family (typical external reference))
- Single 1.8 V operation simplifies power tree (vs AD9237BCPZ-20 (3.0 V supply))
- Drop-in speed-grade migration across the AD9609 family (vs Competitors requiring redesign for different sample rates)
Design Notes
The AD9609XCPZ-40 operates from a single 1.8 V analog supply. Use separate analog (AVDD) and digital (DRVDD) rails with independent decoupling to isolate sensitive analog sampling from digital switching noise. Place 0.1 µF ceramic decoupling capacitors as close as possible to each supply pin, with bulk capacitors (10 µF or larger) at the regulator output. Estimated: typical total current draw in the AD9609 family at 40 MSPS is in the tens of mA; consult the datasheet electrical table for the precise I_AVDD value at the operating conditions used.
The 32-LFCSP (5 mm x 5 mm) package has an exposed thermal pad on the underside that MUST be soldered to the PCB ground plane for both electrical reference and thermal dissipation. Use a land pattern with multiple thermal vias under the EP to conduct heat into inner ground planes. Apply a single solid ground plane beneath the ADC area; avoid splitting the analog and digital grounds under the IC as this introduces inductance and ground loops that couple switching noise into the analog input.
1) Do not apply analog inputs before power is stable or before the reference has settled - this can saturate the input stage and cause long recovery times. 2) Ensure the differential analog input common-mode voltage is within the device's specified range; adding a coupling transformer or driver amplifier stage with the correct VCM is essential at the 40 MSPS throughput. 3) The parallel CMOS outputs generate fast edges at 40 MHz; route them over a continuous ground plane and keep them length-matched if they feed an FPGA DDR-style capture register.
Compliance Information
RoHS-compliant per Analog Devices product page. Halogen-free status not stated in the verified web data - flagged as unknown. Standard industrial-grade operating temperature range; not AEC-Q100 automotive qualified.
