Part A
AFE5809ZCF
德州儀器
- Lifecycle
- Active
- Stock
- 5909 件
- Package
- NFBGA-135
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE5809ZCF and AFE5804ZCF share the same 289-ball BGA footprint and 16-bit LVDS output architecture, making the AFE5809ZCF a viable functional upgrade candidate for AFE5804ZCF designs. However, the AFE5809ZCF integrates additional digital demodulation and continuous-wave Doppler processing blocks, and its analog front-end performance and power profile differ, so schematic review, clocking validation, and firmware adaptation are required before committing to a drop-in substitution.
Package Type
High match
Output Interface
High match
Channel Count
Validation required
Integrated Signal Processing
Not compatible
Parts at a glance
Part B
AFE5804ZCF
德州儀器
- Lifecycle
- Active
- Stock
- 2032 件
- Package
- BGA-135
- Series
- 資料獲取-類比前端（AFE）
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AFE5809ZCF | AFE5804ZCF | Why it matters |
|---|---|---|---|
| Number of Channels | 8 | 8 | Channel count determines how many transducer elements can be processed simultaneously; both are 8-channel devices, so array compatibility is equivalent. |
| ADC Resolution | 14 bit | 12 bit | Higher ADC resolution provides greater dynamic range and finer quantization, improving image quality and small-signal detection in ultrasound receive chains. |
| Maximum Sampling Rate | 65 MSPS | 50 MSPS | Sampling rate limits the maximum signal bandwidth and achievable axial resolution; a higher rate supports wider-band transducers and finer depth resolution. |
| Integrated Digital Demodulation (DDM) | Yes (with digital I/Q demodulation and decimation) | No | On-chip demodulation reduces FPGA/processor load and data rate, enabling more compact system designs; absence in the AFE5804 requires external processing. |
| Continuous Wave (CW) Doppler Support | Yes (integrated CW mixer) | Yes (integrated CW mixer) | CW Doppler capability is essential for blood-flow velocity measurement; both devices include it, so Doppler functionality is preserved. |
| LNA Input-Referred Noise | 0.75 nV/√Hz (typical) | 0.8 nV/√Hz (typical) | Lower input noise improves sensitivity to weak echoes; the AFE5809 offers a slight noise advantage for demanding imaging applications. |
| Total Power Consumption | Approximately 1.0 W (typical, full channel) | Approximately 0.9 W (typical, full channel) | Power consumption affects thermal design and battery life in portable ultrasound systems; the AFE5804 is marginally more power-efficient. |
| Package | 144-ball NFBGA (ZCF) | 144-ball NFBGA (ZCF) | Identical package and pinout enable drop-in board-level compatibility, simplifying hardware redesign when substituting parts. |
| Output Interface | LVDS serial output | LVDS serial output | Matching LVDS interfaces allow the same FPGA/back-end to be reused, reducing integration effort when swapping devices. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5809ZCF | AFE5804ZCF |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 14 | 12 |
| Number of Channels | 8 | 8 |
| Power (Watts) | 158 mW | 101 mW |
| Voltage - Supply, Analog | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V | 3.15V ~ 3.47V, 5V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Mounting Type | Surface Mount | Surface Mount |