Part A
AFE5828ZAV
德州儀器
- Lifecycle
- Active
- Stock
- 3880 件
- Package
- NFBGA-289
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE5818ZBV and AFE5828ZAV are both 16-channel ultrasound analog front ends from Texas Instruments with matching channel count, supply architecture, and digital interface, making the AFE5828ZAV a viable functional replacement candidate for the AFE5818ZBV. Designers should validate the differing package footprint and confirm the noise and power trade-offs against their specific imaging requirements before committing to a drop-in substitution.
Channel Count
High match
Package Type
Validation required
Noise and Power Performance
Validation required
Digital Interface
High match
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 | AFE5828ZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 16 | Channel count determines how many transducer elements can be processed simultaneously in an ultrasound system. |
| Analog-to-Digital Converter Resolution | 14 bit | 14 bit | ADC resolution affects dynamic range and image quality in the receive signal chain. |
| Maximum Sampling Rate | 65 MSPS | 80 MSPS | Higher sampling rate supports wider signal bandwidth and better spatial resolution in imaging. |
| Low-Noise Amplifier (LNA) Gain Range | 18 dB to 24 dB | 18 dB to 24 dB | LNA gain range determines the ability to handle both weak and strong echo signals without saturation. |
| Time-Gain Compensation (TGC) Range | 40 dB | 40 dB | TGC range compensates for depth-dependent signal attenuation in ultrasound imaging. |
| Continuous Wave (CW) Doppler Support | Yes | Yes | CW Doppler capability is required for blood flow velocity measurement in clinical ultrasound. |
| JESD204B Interface | Yes | Yes | A high-speed serial interface reduces board routing complexity and supports high channel counts. |
| Package Type | NFBGA (ZBV) | NFBGA (ZAV) | Package footprint and pinout affect PCB layout compatibility and drop-in substitutability. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range ensures reliable operation across clinical and industrial environments. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply voltage compatibility determines whether the device can be used in an existing power architecture. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5828ZAV | AFE5818ZBV |
|---|---|---|
| Part Status | Active | Active |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Bits | - | 14 |
| Number of Channels | - | 16 |
| Power (Watts) | - | 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 AFE5828ZAV?
Both are fully integrated analog front-end (AFE) devices from Texas Instruments for ultrasound imaging systems. The AFE5818ZBV is an 8-channel AFE with a 14-bit ADC and a maximum sampling rate of 65 MSPS. The AFE5828ZAV is an 8-channel AFE with a 14-bit ADC and a maximum sampling rate of 80 MSPS.
What is the main difference between the AFE5818ZBV and AFE5828ZAV?
The primary difference is the maximum ADC sampling rate: the AFE5818ZBV supports up to 65 MSPS, while the AFE5828ZAV supports up to 80 MSPS. Both are 8-channel, 14-bit AFEs in the same ZBV/ZAV package family, but the higher sampling rate of the AFE5828ZAV enables wider signal bandwidth and finer time resolution for demanding ultrasound modes.
Are the AFE5818ZBV and AFE5828ZAV pin-compatible?
Both devices are offered in the same package type (ZBV/ZAV, a 289-ball NFBGA). However, pin compatibility must be confirmed against the respective datasheets, because pin functions and supply requirements can differ between the two variants. Do not assume direct drop-in replacement without verifying the pinout and power sequencing in the official TI documentation.
What is the input signal chain architecture of these AFEs?
Both devices integrate a low-noise amplifier (LNA), a programmable gain amplifier (VGA), an anti-aliasing filter, and a 14-bit ADC per channel. They also include digital time-gain compensation (TGC) and continuous-wave (CW) Doppler processing. The AFE5828ZAV provides the same signal-chain architecture as the AFE5818ZBV but with a higher maximum ADC sampling rate.
What are the typical applications for the AFE5818ZBV and AFE5828ZAV?
Both AFEs are intended for medical ultrasound imaging systems, including cart-based and portable ultrasound scanners. They support B-mode, color Doppler, pulsed-wave Doppler, and continuous-wave Doppler processing. The AFE5828ZAV's higher 80 MSPS sampling rate is better suited to higher-frequency transducers and advanced imaging modes requiring wider bandwidth.
What supply voltages do the AFE5818ZBV and AFE5828ZAV require?
Both devices use a multi-supply architecture with analog and digital rails, typically including 1.8 V and 3.3 V domains as specified in the TI datasheets. Exact supply voltage ranges, sequencing requirements, and current consumption must be taken from the official AFE5818 and AFE5828 datasheets, since these parameters are critical for reliable operation.
Can the AFE5818ZBV be replaced by the AFE5828ZAV in an existing design?
Replacement is not a simple drop-in substitution. Although both are 8-channel, 14-bit AFEs in the same package family, the AFE5828ZAV supports a higher maximum sampling rate (80 MSPS vs 65 MSPS), which may require changes to clocking, digital interface timing, and power delivery. The design must be validated against the AFE5828ZAV datasheet and the system's timing and power budgets before substitution.
What digital output interface do these AFEs provide?
Both devices provide a low-voltage differential signaling (LVDS) digital output interface for the ADC data, supporting serialized output to reduce pin count and simplify board routing. The exact LVDS data rate, lane configuration, and timing specifications depend on the sampling rate and must be verified in the respective TI datasheets for the AFE5818ZBV and AFE5828ZAV.