Part A
AFE58JD48ZAV
德州儀器
- Lifecycle
- Active
- Stock
- 7068 件
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE58JD48ZAV is a viable functional replacement candidate for the AFE5818ZBV, sharing the same 16-channel ultrasound AFE architecture, 14-bit ADC resolution, and 9x9 mm NFBGA-289 footprint. Designers must validate the higher power consumption and confirm the extended operating temperature range against their thermal budget before adopting the AFE58JD48ZAV in place of the AFE5818ZBV.
Channel Count
High match
ADC Resolution
High match
Power Consumption
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
AFE5818ZBV
德州儀器
- Lifecycle
- Active
- Stock
- 4837 件
- Package
- NFBGA-289
- 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 | AFE5818ZBV | AFE58JD48ZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 16 | Channel count determines how many transducer elements the AFE can support; matching counts allow direct system-level substitution. |
| Analog-to-Digital Converter Resolution | 14 bit | 12 bit | Higher ADC resolution provides greater dynamic range and finer signal detail, which affects image quality in ultrasound receive chains. |
| Maximum Sample Rate | 65 MSPS | 65 MSPS | Sample rate sets the maximum signal bandwidth the AFE can digitize; identical rates preserve timing and bandwidth compatibility. |
| Input Referred Noise | 0.8 nV/√Hz | 1.0 nV/√Hz | Lower input-referred noise improves sensitivity to weak echoes, directly impacting penetration depth and image clarity. |
| Programmable Gain Amplifier Range | 0 to 40 dB | 0 to 40 dB | TGC/PGA range determines the ability to compensate for tissue attenuation across depth; matching ranges support equivalent gain profiles. |
| Continuous Wave (CW) Doppler Support | Yes | Yes | CW Doppler capability is required for blood flow velocity measurement; both supporting it preserves Doppler functionality. |
| Digital Demodulation / Decimation | Yes | Yes | On-chip digital processing reduces FPGA/backend load and data rate; matching capability supports similar system architectures. |
| JESD204B Interface | No | Yes | JESD204B serial interface reduces pin count and simplifies high-speed board routing; a mismatch requires different FPGA interface design. |
| Package | NFBGA-289 | NFBGA-289 | Package and footprint compatibility determines whether a drop-in board replacement is possible without layout changes. |
| Operating Temperature Range | -40 to 85 °C | -40 to 85 °C | Industrial temperature range ensures reliable operation in medical and industrial environments; matching ranges preserve environmental ratings. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE58JD48ZAV | AFE5818ZBV |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 14 |
| Number of Channels | 16 | 16 |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | AFE58JD48 | - |
| Power (Watts) | 140 mW | 140 mW |
| Voltage - Supply, Analog | - | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | - | 1.15V ~ 1.25V, 1.7V ~ 1.9V |
Frequently asked questions
What are the AFE5818ZBV and AFE58JD48ZAV?
Both are Texas Instruments fully integrated analog front-end (AFE) devices for ultrasound imaging systems. The AFE5818ZBV is an 8-channel AFE with a 14-bit ADC and CW Doppler mixer, while the AFE58JD48ZAV is a 16-channel AFE with a 12-bit ADC and digital demodulation/CW Doppler processing. Both integrate a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), anti-aliasing filter, and ADC.
How do the channel counts of the AFE5818ZBV and AFE58JD48ZAV differ?
The AFE5818ZBV provides 8 receive channels, whereas the AFE58JD48ZAV provides 16 receive channels. This difference directly affects system channel density and the number of devices required per ultrasound probe array.
What are the ADC resolutions of the AFE5818ZBV and AFE58JD48ZAV?
The AFE5818ZBV integrates a 14-bit analog-to-digital converter, while the AFE58JD48ZAV integrates a 12-bit ADC. The higher resolution of the AFE5818ZBV may benefit dynamic range requirements, while the AFE58JD48ZAV trades resolution for higher channel integration.
Do both devices support continuous wave (CW) Doppler processing?
Yes. The AFE5818ZBV includes an on-chip CW Doppler mixer, and the AFE58JD48ZAV includes digital demodulation and CW Doppler processing. Both are intended for ultrasound systems requiring CW Doppler capability, though the implementation differs between the two devices.
Are the AFE5818ZBV and AFE58JD48ZAV pin-to-pin or package compatible?
No. The AFE5818ZBV is supplied in a 9 mm × 9 mm 64-pin QFN package, while the AFE58JD48ZAV is supplied in a 15 mm × 15 mm 289-pin NFBGA package. The different package types, pin counts, and pin functions prevent direct PCB-level substitution without a redesign.
What are the typical power consumption characteristics of these AFEs?
Both devices are designed for low-power ultrasound operation and include power-down modes. The AFE5818ZBV consumes approximately 1.1 W total at 40 MSPS for 8 channels, while the AFE58JD48ZAV consumes approximately 1.9 W at 40 MSPS for 16 channels. Actual consumption depends on sample rate, channel configuration, and enabled features; designers should consult the respective datasheets for exact conditions.
Can the AFE58JD48ZAV replace the AFE5818ZBV in an existing design?
Not directly. The AFE58JD48ZAV has twice the channel count, a different ADC resolution (12-bit vs 14-bit), a different package (289-pin NFBGA vs 64-pin QFN), and different digital interface requirements. A replacement would require PCB redesign, FPGA interface changes, and revalidation of the signal chain against the target imaging performance.
Which device is better suited for high-channel-density ultrasound systems?
The AFE58JD48ZAV is better suited for high-channel-density systems because it integrates 16 channels per device, reducing the number of AFE packages and board area required for large probe arrays. The AFE5818ZBV, with 8 channels, is more appropriate for lower-channel-count or space-constrained designs where its 14-bit resolution is advantageous.