Part A
AFE58JD48ZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 7068 PCS
- Series
- Data Acquisition - Analog Front End (AFE)
Replacement verdict
Compatible functional replacement candidate
The AFE58JD48ZAV is a functionally compatible replacement candidate for the AFE5808AZCF, sharing the same 8-channel ultrasound analog front-end architecture, 14-bit ADC resolution, and 9 mm × 9 mm BGA footprint. Designers should validate the JESD204B serial interface and the extended operating temperature range before committing to a drop-in substitution.
Channel Count
High match
ADC Resolution
High match
Output Interface
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
AFE5808AZCF
Texas Instruments
- Lifecycle
- Active
- Stock
- 4985 PCS
- Package
- NFBGA-135
- Series
- Data Acquisition - Analog Front End (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 | AFE5808AZCF | AFE58JD48ZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 8 | 16 | Channel count determines how many transducer elements can be processed simultaneously; a 16-channel device can serve twice the array size of an 8-channel device. |
| ADC Resolution | 12 bit | 12 bit | ADC bit depth sets the dynamic range and quantization noise floor of the receive path; both parts match here, so digitization performance is comparable. |
| Maximum Sampling Rate | 65 MSPS | 65 MSPS | Sample rate limits the achievable imaging depth and bandwidth; identical rates mean equivalent timing performance per channel. |
| Input-Referred Noise | 0.75 nV/√Hz (LNA) | 0.75 nV/√Hz (LNA) | Low noise figure directly affects small-signal sensitivity in ultrasound receive chains; matching values indicate comparable sensitivity. |
| LNA Gain Range | 18 dB to 24 dB | 18 dB to 24 dB | Programmable LNA gain allows optimization of the signal chain for different probe types and tissue depths; identical ranges support the same front-end tuning. |
| Total Power Consumption | ~158 mW/channel | ~150 mW/channel | Per-channel power drives thermal design and battery life in portable ultrasound systems; lower per-channel power in the 16-channel part can offset its higher channel count. |
| Package | 100-pin NFBGA (ZCF) | 289-pin NFBGA (ZAV) | Package footprint and pinout determine PCB layout and board space; the two parts are not footprint-compatible and require different layouts. |
| Interface | LVDS serial output | LVDS serial output with JESD204B | The digital output interface must match the FPGA or receiver; JESD204B support in the 16-channel part enables higher aggregate throughput and simplified routing. |
| Operating Temperature Range | 0°C to 70°C | -40°C to 85°C | Temperature range affects suitability for industrial and medical environments; the wider range of the 16-channel part supports harsher operating conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE58JD48ZAV | AFE5808AZCF |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 12, 14 |
| Number of Channels | 16 | 8 |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | AFE58JD48 | - |
| Power (Watts) | 140 mW | 158 mW |
| Voltage - Supply, Analog | - | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | - | 1.7V ~ 1.9V |
Frequently asked questions
What are the AFE5808AZCF and AFE58JD48ZAV?
The AFE5808AZCF and AFE58JD48ZAV are both fully integrated analog front-end (AFE) devices from Texas Instruments intended for ultrasound imaging systems. Each integrates a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), anti-aliasing filter, and a 12-bit analog-to-digital converter (ADC) across multiple channels, along with CW (continuous wave) Doppler processing blocks.
How do the channel counts of the AFE5808AZCF and AFE58JD48ZAV compare?
The AFE5808AZCF is an 8-channel AFE, while the AFE58JD48ZAV is a 16-channel AFE. The higher channel count of the AFE58JD48ZAV allows denser system integration for multi-element transducer arrays, whereas the AFE5808AZCF suits designs requiring fewer channels per device.
Do the AFE5808AZCF and AFE58JD48ZAV use the same package and pinout?
No. The AFE5808AZCF is supplied in a 289-ball NFBGA (ZCF) package, while the AFE58JD48ZAV is supplied in a 289-ball NFBGA (ZAV) package. Although both are 289-ball NFBGA devices, the pin assignments and channel-to-pin mapping differ because of the different channel counts, so the PCB land patterns and pin functions are not directly interchangeable.
What are the key differences in ADC resolution and sampling rate between these two AFEs?
Both devices integrate 12-bit ADCs. The AFE5808AZCF supports ADC sampling rates up to 65 MSPS, while the AFE58JD48ZAV supports ADC sampling rates up to 65 MSPS as well. Designers should confirm the exact maximum sampling rate and associated signal-chain performance from the respective TI datasheets for their target operating mode.
Do both devices include continuous wave (CW) Doppler processing?
Yes. Both the AFE5808AZCF and AFE58JD48ZAV integrate CW Doppler mixing and summation blocks, enabling continuous wave Doppler processing in ultrasound receive chains. The number of CW channels scales with the device channel count (8 for the AFE5808AZCF and 16 for the AFE58JD48ZAV).
Can the AFE5808AZCF be used as a drop-in replacement for the AFE58JD48ZAV?
No. Because the two devices differ in channel count (8 vs 16), package ball assignment, and system-level channel mapping, the AFE5808AZCF is not a drop-in replacement for the AFE58JD48ZAV. Any substitution requires redesign of the receive channel architecture and PCB layout, and must be validated against the TI datasheets for both parts.
What are the typical power supply requirements for these AFEs?
Both devices are designed for ultrasound receive-chain operation and require multiple supply rails (typically analog and digital supplies) as specified in their respective TI datasheets. Because the AFE58JD48ZAV integrates twice the channel count of the AFE5808AZCF, its total power consumption per device is correspondingly higher, so system power budgeting must account for the channel-count difference.
Which device is better suited for high-channel-count ultrasound systems?
The AFE58JD48ZAV, with 16 channels per device, is better suited to high-channel-count ultrasound systems because it reduces the number of AFE devices and associated digital interconnect required for a given transducer array size. The AFE5808AZCF, with 8 channels, is appropriate for lower-channel-count or more distributed architectures.